Zpool import disk. So I installed … Zpool not found.

Zpool import disk Code: ZFS_STDERR="$(eval ${ZFS Verified that I could export and import the zpool without problems. 5) in my Centos 7 and I have also created a zpool, everything works fine apart from the fact that my datasets disappear on reboot. config: backpool ONLINE raidz2-0 ONLINE 0739257a-7070-44c6-b402-584dff293934 ONLINE 048ccec6-609c-4879-b2a6-59f91e8aa71b ONLINE f99db7ee-c100-44b0-93eb-b16bbda6bf51 ONLINE feb29f48-e7c2-40ea-9592-c9c84453d443 ONLINE root@truenas[~]# zpool import -m backpool cannot import 'backpool': one or more devices is Describe the problem you're observing. Follow If you want to keep the same pool name, then you must export the new pool and use zpool import -R after step 3, which is described in the man page. log. Thanks for putting me straight though :) Will check tomorrow and get back to you ZFS: zpool import - UNAVAIL missing device. Note – If you had previously set the pool property autoreplace to on, then any new device, found in the same physical location as a device that previously belonged to the pool is automatically formatted and replaced without using the zpool replace Hello guys. # zpool import pool: I have a zpool that is in UNAVAIL state because of some disks. special. I have been This file stores pool configuration information, such as the device names and pool state. A pool can be identified by its name or the First, a bit of terminology: in ZFS, you import a pool, and optionally mount the (any) file systems within it. I have Linux and FreeBSD installations on two different disks (Ext4 and UFS) and I keep my data on a separate hard disk (zfs). 0G 0% /zpool zpool/docs 4. 0M 4. When partitioning the disks used for the pool, replicate the layout of the first disk on to the second. In addition to the zpool add command, you can use the zpool attach command to add a new device to an existing mirrored or nonmirrored device. Running zpool import -a says no pools available to import. There is no resilvering needed and as far as I can tell the /etc/zfs/zpool. I thought about deleting the /etc/zfs/zpool. This can change at any point. cache with new paths, so you may need to rebuild initramfs to keep it. Apparently you're supposed to do that, otherwise you're gonna get issues. Sometimes a zpool clear along with a zpool scrub can help. I then proceeded to clone the installation SSD to a new one as well. cache file I managed to recover from the old OS might do something. In your output, you have /dev/sdi as a member of the pool. Then I built a new Each disk is luksEncrypted. Zpool import reports /tank as being available to import. Playing around with some options, zpool import sees the (now destroyed) second version of the backup pool, Those are the two disks where the pool was overwritten by my create command. But zpool status shows the pool is online, and it’s mounted although in the defaults page I set it to not auto-mount. See: Migrating ZFS Storage Pools this sounds like you did something unsupported, and there are many if those that make data inaccessible. mirror-1 appears to be in order (both members are 2TB). You did the command "zpool import Media" and that's not the proper way to mount a zpool in FreeNAS. 5K 44. In short, I attempted to migrate the data disks from one truenas server to another server(It was originally Virtualized). . Learn how to open a ZFS disk in Windows with this detailed step-by-step guide. Each pool is identified zpool import [-Dflmt] [-F [-nTX]] [-c cachefile|-d dir|device] [-o mntopts] [-o property=value] [-R root] [-s] pool|id [newpool] Imports a specific pool. Adds the specified virtual devices to the given pool. Startup error: "Failed to start Import ZFS pool ssd\x2dpool. # zpool import data1 cannot import 'data1': one or more devices are already in use zpool import showed the same output for this pool. 0G 0 4. 如果多个可用池具有相同名称，则必须使用数字标识符指定要导入的池。例如： # zpool import pool: dozer id: 2704475622193776801 state: ONLINE action: The pool can be imported using its name or numeric identifier. One of those properties, if zpool import-a [-DflmN] [-F [-nTX]] [-c cachefile|-d dir|device] [-o mntopts] [-o property=value] [-R root] [-s] Imports all pools found in the search directories. They all seem stable. Actually, I pulled every hard disk and recorder the serial numbers, then booted into the old 18. ZPOOL_IMPORT_UDEV_TIMEOUT_MS The maximum time in milliseconds that zpool import will wait for an expected device to be available. First, a bit of terminology: in ZFS, you import a pool, and optionally mount the (any) file systems within it. 3 (2015) Supermicro 721TQ-350B NAS case (replaced Norco ITX-S4 2021) Asrock A specific import says the vdev configuration is invalid. ZFS makes a checksum of every block of data that is written to a drive, Operationally, you'd hook up the new disk along with the old, and then zpool replace the old disk with the new one. I’ve migrated the same pools through 3 different servers using this method. While the device is offline, no attempt is made to read or write to the device. At this point in the investigation, a good friend recommended that I check what disks were recognized by Disks is shared between several partitions; the zpool lays only on part 6 on each disk; other partitions are used for other purposes. – But I am still confused about the database. zpool-add(8), zpool-detach(8), zpool-import(8), zpool-initialize(8), zpool-online(8), zpool-replace(8), zpool-resilver(8) June 28, 2023 Normally first with a zpool import -nF to determine if the pool could be imported by discarding the last few transactions. I am going to buy 6x4T. Reply reply exactly the same; the -d option of zpool import applies to all devices within the pool (tank) Replace the second disk zpool replace labpool sdb5 sdd5. But they still show up like at one point they were showing up as ata-* but I added more disks via their /dev/sd*, exported and imported and they started showing up like the below and I Bring the new disk (c1t3d0) online. If you are attaching a disk to create a mirrored root pool, see How to Create a Mirrored Root Pool (Post Installation). If you are replacing a disk in a ZFS root pool, see How to It may be importing the old zpool rather than the new one when it boots due to having two pools with the same name. To import a specific pool, use the command zpool import adding the pool name at the end: zpool import pzfs. I think this issue came about because I used to be on TrueNAS-13. zpool create tank mirror sda sdb mirror sdc sdd Attaching a mirror device¶ Importing and exporting¶ Pool properties¶ allocated read-only altroot set at creation time and import time only. action: Replace the device using 'zpool replace'. action: The pool cannot be imported due to damaged devices or data. The "cannot mount" messages are normal. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or 'fmadm repaired', or replace the device with 'zpool replace'. Run the zpool replace command to replace the disk (c1t3d0). slowtank. 8G 78K 44. ) but yeah I don't know. To great surprise I was able to re-import the root pool using the detached disks via zpool import -F and the zpool was fine in a state before I started the disk For example, the following creates two root vdevs, each a mirror of two disks: # zpool create mypool mirror sda sdb mirror sdc sdd. dedup. I tried 3 different USB ports. -Z Storage Pool The following command creates a pool with a When zpool import runs, the disks are enumerated, ZFS rebuilds all the pools, and then uses the device name (without actually including any directory IME, usually it's something It should then list which pools are available for import. sdc 8:32 0 256G 0 disk ├─sdc1 8:33 0 8G 0 part └─sdc2 8:34 0 248G 0 part /dev/sdc2 is what I want to mount in zfs and contains the data. Everything works, so not sure that matters at all. cache just gives: pool: backup id: 3936176493905234028 state: UNAVAIL status: One or more devices contains corrupted data. -f Forces use of vdevs, even if they appear in use, have conflicting ashift values, or specify a conflicting replication level. Now, when I run zpool import it will show it as FAULTED, since that single disk not available anymore. Now, I'm running Solaris 11. If it indeed contains a ZFS filesystem: Attach it to a virtual disk device using losetup, then use zpool to import that device. Hopefully this helps someone in a similar situation. (This creates a temporary replacing device which Is the ashift different between pools? Interestingly, according to: # zpool get ashift newpool NAME PROPERTY VALUE SOURCE newpool ashift 12 local # zpool get ashift plvl5i0 NAME zpool import [-D] [-d dir For example, the following creates two root vdevs, each a mirror of two disks: # zpool create mypool mirror sda sdb mirror sdc sdd Device Failure and Recovery ZFS When attempting to import a zpool with -m (also -F and -f and combinations thereof), I receive: "cannot import 'tank2': one or more devices is currently unavailable" I . Either via GUI or zpool import you may be able to import the pool. sudo zpool export disk-pool sudo zpool import disk-pool -d /dev/disk/by-id You could try to fix it by unplugging the extra disks you added -- that would probably allow the labels to go back to how they were originally -- and then doing an export followed by zpool import -d /dev/disk/by-id tank, to force ZFS to relabel the If "zpool import" fails to give interesting information, then look at the partition tables (using gpart) of the three disks you suspect of being part of the missing pool. action: The pool can be Managing the mounting / unmounting of the destination disk volumes; Splitting the archive stream into separate files on the disk volumes (user defined max file size, default 2G) Now when I created the zpool, I didn't create it with /dev/disk/by-id. Adding disks to ZFS through searching the web, I found a possibility to import unmounted zpools: zpool import. You could try importing the new one by its id with a different pool name (sudo zpool import 7033445233439275442 newdata), exporting the old one, then exporting and importing the new one again. Zpool import scans for data root@sol:~ # zpool import pool: vol_Data-1 id: 16557953576057239499 state: ONLINE status: One or more devices contains corrupted data. Code: # zpool import p | The UNIX and Linux Forums It tells zpool where to look for devices: zpool export <poolname> zpool import -d /dev/disk/by-id <poolname> Using zpool status this can be verified: Before the export/import, I initially did a Promox installation (ISO), and added an SSD with ZFS (Single Disk): ID:local-zfs ZFS Pool: rpool/data zpool import to list importable pools and zpool import Instead of doing a zpool import as a generic 'import all pools' specifying the pool name after the import command allowed the pool to be imported with one failed / missing drive. The behavior of the -f option, and the device checks performed are described in the zpool create subcommand. zpool import recognises the data set: pool: <pool-name> id: sharkoon# zpool export tank cannot unmount '/mnt/tank/. txt" does should a lot of disks. In the last step I've monted as mentioned in Ismael's post: To import a specific pool, specify the pool name or its numeric identifier with the zfs import command. If NixOS fails to import the zpool on reboot, you may need to add boot. And since its my home setup and I haven't got the money for a secondary proper # zpool import -o readonly=on -R /mnt -f data cannot import 'data': one or more devices is currently unavailable All operations that in some way try to repair a pool require it to be imported, and I can't get import working. There are insufficient replicas for the pool to continue functioning. zpool status You can try to import it explicitly by name. Where pzfs is the name of the pool to be If a disk fails while the expansion is in progress, the expansion pauses until the health of the RAID-Z vdev is restored (e. 04, and I get the unavailable message again, but blkid shows all 4 now, but doesn't have the guid that zpool shows as unavailable. As far as I can tell the corresponding file in the I was then able to import the zpool at the intact transaction group id: zpool import -o readonly=on -T 5102201 vault This command took about 15 hours for my 2x4TB mirror, but I could access all my files again. zfs to have it guess the file's contents instead. Best root@truenas[~]# zpool import -d /dev/da0p2 -d /dev/da2p2 -d /dev/ada0p2 -d /dev/ada1p2 pool: tank id: 2160150738180114986 state: DEGRADED status: One or more devices are missing from the system. Then be sure to run a zpool scrub to make sure you're good to go. For example: If multiple Use zpool import -d /dev/disk/by-id data instead. Note - If you had previously set the pool property autoreplace to on, then any new device, found in the same physical location as a # zpool import -o readonly=on -R /mnt -f data cannot import 'data': one or more devices is currently unavailable All operations that in some way try to repair a pool require it to be zpool import is indeed the one and only command to import ZFS pools, partition type IDs. If a zpool has been created on a disk partition from a different system make sure the partition label contains "zfs". Alles was mir heute Morgen schon spanisch vor kam, dass mir der PVE If "zpool import" fails to give interesting information, then look at the partition tables (using gpart) of the three disks you suspect of being part of the missing pool. S. For “full-disk” vdevs, ZFS creates two GPT partitions nowadays, one of type “Solaris /usr & Apple ZFS” and one of type “Solaris reserved 1”. system/syslog': Device busy sharkoon# zpool export -f tank sharkoon# zpool import tank cannot mount '/tank': failed You signed in with another tab or window. 1) and running "zpool import" gives me errors. ZFS supports a rich set of mechanisms for handling device failure and data corruption. Show : 13. Once the disks are attached to the final destination host, you can use the zpool import command to import the Sadly, somehow the zpool got borked in the O/S upgrade process and we encountered the dreaded "cannot import 'zpool': I/O error" and "cannot import 'zpool': one or more devices is zpool-checkpoint Checkpoints the current state of pool, which can be later re- stored by zpool import--rewind-to-checkpoint. user@pc:~$ sudo zpool status pool: storage state: ONLINE scan: scrub repaired 0 in 8h30m with 0 errors on Sun May 28 08:54:48 2017 config: NAME STATE READ WRITE CKSUM storage ONLINE 0 0 0 mirror-0 ONLINE 0 When attach this USB drive to another system I can see the ZFS partition in DISKS as /dev/sdc3 How can I import this pool into the local system (even read-only) so I can browse the folders? Share Add a Comment You can pass the -d flag to zpool import in order to specify the drive(s) to look in. The vdev specification is described in the Virtual Devices section of zpoolconcepts(7). Access your ZFS data effortlessly using simple instructions provided here. For example the same drive will To maximise my chances of recovery, I dd cloned every disk onto a brand new one. A pool can be identified by its name or the numeric identifier. I typically decrypt the disks and import the pool via: zpool import <pool-name>. disk. cache has the boot pool (which is imported explicitly earlier) and the root pool (which is imported properly by initramfs) and the old pool. autotrim=on Run the zpool replace command to replace the disk (c1t3d0). And consider exporting your pool and zpool import -d /dev/disk/by-id so your device names are more useful. If zpool import rpool # without the `-l` option! zfs load-key -L /path/to/keyfile rpool zfs mount rpool BTW: keep in mind the distinction between the pool called rpool and the top-level dataset of that pool (also called rpool) - zpool sub-commands work with pools, zfs sub-commands work with datasets, zvols, snapshots, etc. The goal of this change is to make 'zpool import' prefer to use the peristent /dev/mapper By running the ZPool Import command on the new system seems to have been running because if you run the ZPool list command, the import zpool is shown. Its not clear why zpool import does not show a pool, (even one missing a No problems You can create a pool and use the zpool export option on the system you create the pool on. 0G 1% /zpool/docs Time +4. For “full-disk” vdevs, ZFS creates two GPT partitions nowadays, one of type “Solaris zpool import rpool # without the `-l` option! zfs load-key -L /path/to/keyfile rpool zfs mount rpool BTW: keep in mind the distinction between the pool called rpool and the top-level dataset of I have installed ZFS(0. Share. You switched accounts on another tab Bring the new disk (c1t3d0) online. g. Last accessed by truenas (hostid=584594f) at Wed Dec 31 16:00:00 1969 The pool can be imported, use 'zpool import -f' to import the pool. You need to import your pools first (zpool import) and then add these pools as a ZFS storage to your PVE (in webUI under: Datacenter -> Storage -> Add -> ZFS) File names can be misleading, so run file foo. Please unlock disk cryptroot: [ 8. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or 'fmadm repaired', I have x4 6TB disks in raid2 with a Boot disk for Truenas. Similar to the -d option in zpool import. Hint: try: zpool import -R /rpool -N rpool Also use zpool attach to add new disks to a mirror group, increasing redundancy and read performance. So, finally, the question: is it possible to get those files back without the second disk? To import a specific pool, specify the pool name or its numeric identifier with the zfs import command. If any of the file systems Import & Export zpool-import(8) Make disks containing ZFS storage pools available for use on the system. A disk should not just ZFS is an enterprise-grade filesystem for Linux which is often the best choice for storage when data integrity is critical. zpool import ZStore P. I have been trying to debug this issue wi Hallo liebe Forengemeinde, ich habe schon wieder ein Problem mit meinem ZFS-Pool Import beim Booten. After changing that code to. Otherwise zpool import won't recognize the pool and will fail with "no pools available to import". You do not want to add the disk to another pool. 1 of the 3 imports by its scsi-id instead. you need to pass through the hardware due to issues exactly like this. # zpool import pool: tank id: 15451357997522795478 state: disk. 7G 0% ONLINE /a # zfs list pool NAME USED AVAIL REFER MOUNTPOINT pool 73. 一种块设备，通常位于 /dev/dsk 下。ZFS 可以使用单个分片或分区，但推荐的操作模式是使用整个磁盘。 # zpool import tank The devices below are missing, use '-m' to import the pool anyway: c5t0d0 [log] cannot import 'tank': one or #zpool online Apool 16652179745355271605 #zpool export Apool #multipath -r #zpool import -d /dev/mapper Apool #zpool status Apool Apool ONLINE 0 0 0 raidz2-0 ONLINE 0 0 0 archive-1 ONLINE 0 0 0 archive-2 ONLINE 0 0 0 archive-3 ONLINE 0 0 0 archive-4 ONLINE 0 0 0 replacing-4 ONLINE 0 0 0 WD8TB-2 ONLINE 0 0 0 archive-5 ONLINE 0 0 0 (resilvering But the zpool import command doesn't seem to find anything automatically. Otherwise, disk drivers on platforms of Sufficient replicas exist for the pool to continue functioning in a degraded state. Reply cannot import 'data': one or more devices is currently unavailable [root@osiris disk]# zpool import -d /dev/disk/by-id/ pool: data id: 16401462993758165592 state: FAULTED zpool import -d /dev/disk/by-id -aN So you can specify the -d option multiple times to import the Drive name you specifically want: zpool import -d ata-ST16000NM000J There's a lot of simple mistakes here. Udev (which manages the by-id symlinks) creates multiple by-id symlinks for each drive and partition. But if I want to import the existing, unavailable pool with zpool import dte ("dte" was the name of the pool), I get the following error: ms@linuxServer:/# sudo zpool import dte cannot import 'dte': pool may be in use from other system use '-f' to import Importing the pool with zpool import -d /dev/disk/by-id <pool-name> is also save to use. 8G 76. cache. root@truenas[~]# zpool import 413467148470438577 cannot import 'main': pool was previously in use from another system. # zpool import -F pool: delta id: XYAZA state: UNAVAIL status: One or more devices are missing from the The 18019629936018899145 is the GUID of what was presumably a 2+ TB disk. For example: This command To do a backup to e. I'm trying to import a zpool that's on an attached USB disk, and zpool import isn't finding it. I should've tested the new disks first because the promptly failed, suspending the pool and hanging the system save for what was already in memory. The zpool just isn't found. But ideally, just connect all the drives and let ZFS figure it out, it really should find the pool ZPOOL_IMPORT_PATH The search path for devices or files to use with the pool. 04 environment and all drives showed as online in a zpool status vdata. And I was able to create a new zpool with a zfs on it (one of the non-used disks) by using "zpool create tank3 c0t5000C5005335A6C9d0" and "zfs create tank3/doc" zpool create addonpool /dev/sdb zpool add addonpool mirror /dev/sda4 /dev/sdb probably more something like this: zpool add rpool mirror /dev/sda4 /dev/sdb (because rpool is 4th partition and in the case of the unpartitioned disk, I'm adding the whole disk. Follow get the name of the disk from zpool status; use diskinfo to identify the physical location of the UNAVAILABLE drive noted from above; reconfigure it with cfgadm -c unconfigure and cfgadm -c configure; bring the new disk online - zpool online zone; update zone - zpool replace zone (zpool status zone should show online) zpool import is indeed the one and only command to import ZFS pools, partition type IDs. zpool import [-d dir] [-D] zpool import For example, the following creates two root vdevs, each a mirror of two disks: # zpool create mypool mirror c0t0d0 c0t1d0 mirror c1t0d0 c1t1d0 Device Failure and Recovery ZFS supports a rich set of mechanisms for handling device failure and DESCRIPTION zpool offline [--power|[-ft]] pool device Takes the specified physical device offline. Note – If you had previously set the pool property autoreplace to on, then any new device, Watch top and any utility that monitors disk I/O when trying to import. A striped pool, while giving us the combined storage of all drives, is rarely recommended as we’ll lose all our data if a drive fails. If it contains a zfs send backup stream:. ZFS replace disks by id. 3T 0 disk ├─sdd1 8:49 0 1007K 0 part ├─sdd2 8:50 0 512M 0 part └─sdd3 8:51 0 7. We skip the check for visible devices (rmformat) and assume that Solaris remapped the sticks no matter of the order. Overnight, I find that also it seems to have done something so that now I get: root@super01:~# zpool import -d /dev/disk/by-id/ pool: data-pool01 id: 12601456316816559624 state: FAULTED status: One or more devices contains corrupted data. For some reason although all 4 are identical SATA drives, 3 of my 4 disks import by their wwn-id's. 1 (fresh install on vmware ESXi 5. You might also be able to try a zpool replace on the suspect/bad/failing drive with a new drive. spare. 0-RELEASE which has disk replacement bugged and that's one of the drive I swapped $ sudo zpool import pool: content-pool id: 3621552755300412622 state: UNAVAIL status: One or more devices were being resilvered. zpool export readies the pool to cleanly be imported on another system. config: dozer ONLINE c1t9d0 ONLINE pool: dozer id: 6223921996155991199 state: ONLINE action: The pool can be imported using its name or zpool import [-Dflmt] [-F [-nTX]] [-c cachefile|-d dir|device] [-o mntopts] [-o property=value] [-R root] [-s] pool|id [newpool] Imports a specific pool. 1 build, running since 9. Now that everything is back to normal, we can create another snapshot of this state: # zfs snapshot zpool/docs@004 And the list now becomes: # zfs list -t snapshot Pulled the disks, scrapped the box, now I can't import any pools. I've had the same exact problem when my old 3ware controller died - all 4 disks weren't readable on other controllers or normal HBAs. Not sure if it works without force since the pool is degraded. You can import a pool without mounting any file systems by passing -N to zpool import and then later on mount any desired file systems using zfs mount. if I try to import my pool I get some strange errors: zpool import -d All of the pool seems fine and healthy, all disks are showing online, it is just refusing to import. 3ware uses a proprietary disk format so these disks will only work on another 3ware controller. zpool detach sbn ata-ST4000DM005-2DP166_ZDH1TNCF Note that the drive ID is taken from the "was" statement in the zpool status above. Once this is done the zpool status is clean and is marked with state: ONLINE. Also, the system is not reading the pool details from disk as the pool only has one device, and that is unavailable. Sufficient replicas exist for the pool to continue functioning in a degraded state. #StandWithUkraine Support. Is there more debugging/troubleshooting I can do? root@bierstadt:~# zdb -l /dev/sdb1 ----- LABEL 0 ----- version: 5000 name: 'neo' state: 2 txg: 2165602 pool_guid: 9181581013277384632 errata: 0 hostname: 'helo' top_guid: 13889219726875111043 guid: ZPOOL_IMPORT_PATH The search path for devices or files to use with the pool. user@ubuntu:~$ sudo zpool create nvme-tank mirror nvme0n1 nvme1n1 user@ubuntu:~$ sudo zpool export nvme-tank user@ubuntu:~$ sudo zpool import -d /dev/disk/by-id nvme-tank But now I don't see them in blkid at all: 「zpool create -R」および「zpool import -R」コマンドを使用すると、異なるルートパスを持つプールの作成およびインポートを実行できます。 デフォルトでは、システムでプールを作成またはインポートする際、プールが永続的に追加され、システムのブート時に ZPOOL_IMPORT_PATH The search path for devices or files to use with the pool. All devices are marked as exported, but are still considered in use by other subsystems. I've tried zfs on Linux and freeNAS from shell on my laptop (using usb/IDE adapter for disk). When a pool is not listed in the cache file it will need to be detected and imported using the zpool import-d /dev/disk/by ZFS doesn't care what paths you use, it imports dynamically by asking each disk about its zpool information anyway, and if you have enough members of a zpool uuid present it's ready for import. Zpool import “ssd-pool” results in “cannot import ‘ssd-pool’ : a pool with that If the OP had multiple disks in the original pool and at least one of them hadn't had the pool metadata overwritten on, there might have been some small bit of hope of being able to use the standard tools to get something back. Secondly, the -d option takes an absolute directory path to look Putting in the recovered disk, and a fresh empy disk I try to import the volume: Code: [root@freenas] ~# zpool import pool: storage id: 6529383252281524190 state: sudo zpool export zpool_mirror sudo zpool import -d /dev/disk/by-id zpool_mirror . How does zpool decide the order of the three To export a pool, use the zpool export command. zfs. Importing with by-id is the same process, but with much prettier names for the human, but zfs $ sudo zpool import pool: content-pool id: 3621552755300412622 state: UNAVAIL status: One or more devices were being resilvered. 1G 21K Try zpool import -D -d /dev/disk/by-id/xyz to do so. --power Power off the device's slot in the storage enclosure. root@truenas[~]# So that is interesting! I love the date! You should be able to just zpool online sdf1 and zpool online sdg1. A mirrored pool is usually recommended as we’d still be able to access our data if a single drive fails. So instead of Hi! suddenly the system crashed and it no longer boot. I want to change from zpool status tank showing /dev/daX to /dev/diskid but it wont remember this after reboot. # zpool import tank Uninstalling There I could do "sudo zpool import -d /dev/disk/by-id/" (sudo was mandatory). (This is a perfectly valid scenario if, for example, you want to access only a I'm not sure it does I haven't access today but I'm sure the data zpool still just lists a single disk when zpool status -v is run. Another way might be to stop all access to the pool, unmount it with zpool export tank, then do zpool import -d /dev/disk/by-id - hopefully it'll then show you a pool with two devices. zdb -l /dev/da1 is able to print the two labels in da1, so my disk is not dead; zpool import -D says that the pool on da1 is destroyed, and may be able to imported; Solution: Run zpool import -D zpool import [-Dflmt] [-F [-nTX]] [-c cachefile|-d dir|device] [-o mntopts] [-o property=value] [ -R root ] [ -s ] pool | id [ newpool ] Imports a specific pool. hence the original post. Am I screwed? Using Disks in a ZFS Storage Pool; Using Files in a ZFS Storage Pool; Redundancy Features of a ZFS Storage Pool; Mirrored Storage Pool Configuration; # zpool import -R /a pool # zpool list morpheus NAME SIZE ALLOC FREE CAP HEALTH ALTROOT pool 44. The disks not listing a At first, by running zpool import I was seeing the DataVault1 pool with only 3 drives online and from the other 3 one faulted, two unavail. I suppose the /data/freenas-v1. sqeaky@sqeaky-media-server:/$ sudo zpool import Storage cannot import 'Storage': invalid vdev configuration Cannot offline or The disk created from the snapshot is visible on the new server with lsblk. This isn't easy and is not without danger, so read the documentation before proceeding into this direction. A disk should not just move from one pool to another like you're implying - that would be sudo zpool export zpool_mirror sudo zpool import -d /dev/disk/by-id zpool_mirror . I was then able to import the zpool at the intact transaction group id: zpool import -o readonly=on -T 5102201 vault This command took about 15 hours for my 2x4TB mirror, but I could access all my files again. 482283] NET: Registered protocol family 38 cryptsetup (cryptroot): set up successfully done. My problem is now that the imported ZPool has the old names for the disks (SDA, SDB) while on the new system Discs are called SDB1 and SDC1 It may be helpful to remove that disk. 3T 0 part # zpool export zpool # zpool import -d /scratch/ zpool $ df -h | grep zpool zpool 4. Clearly he has already used the disk as part of another pool so clearing labels is impossible. Click on a disk to see the devices widgets for that disk. This command is not applicable to spares. I should've tested them first. For example: In this example, the pool tank is available to be imported on the target system. If this file exists when running the zpool import command then it will be used to determine the list of Try zpool import -f -F -R /mnt NelsonNAS. file. zpool import altroot= allows importing a pool with a base mount point instead of the root of the file system. However, when I issue the command zpool import tank the command reports back as follows: # zpool create pool mirror c1t16d0 c1t17d0 # zpool status pool: pool state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM pool ONLINE 0 0 0 mirror ONLINE 0 0 0 c1t16d0 ONLINE 0 0 0 c1t17d0 ONLINE 0 0 0 zpool list pool NAME SIZE ALLOC FREE CAP HEALTH ALTROOT pool 16. Reload to refresh your session. the set of disks in backup1 you physically insert those disks, you import backup1 you do a replicate (zfs send), you export the pool and remove the disks. Device Failure and Recovery. ashift=ashift. zpool import -f pool: Transfer id: 17969070376272401836 state: UNAVAIL status: The pool was last accessed by another system. Do not forget to set the pool online: zpool online It can happen with more than 2 disks in ZFS RAID configuration - we saw this on some boards with ZFS RAID-0/RAID-10; Boot fails and goes into busybox. Since you didn't try to mount the zpool to the correct location (/mnt) the mountpoints will fail to be created. sdc 8:32 0 256G 0 disk ├─sdc1 8:33 0 8G 0 part └─sdc2 8:34 0 248G 0 part /dev/sdc2 is what I want to I have a pool that cannot be imported even though it is detected and is online. ZPOOL_VDEV_NAME_GUID Cause No problems You can create a pool and use the zpool export option on the system you create the pool on. zpool-export(8) Exports the given pools from the system. Closed behlendorf added a commit to behlendorf/zfs that referenced this issue Sep 17, 2012. cache. It can happen with more than 2 disks in ZFS RAID configuration - we saw this on some boards with ZFS RAID-0/RAID-10; Boot fails and goes into busybox. If this doesn't work, you can try to use zdb to inspect the disk directly. by replacing the failed disk and waiting for reconstruction to complete). So I installed Zpool not found. The new pool name is persistent. Create a new zpool (inside a blank losetup disk image file to avoid the mess of partitioning) and an empty ZFS ZFS pool on-disk format versions are specified via “features” which replace the old on-disk format numbers (the last supported on-disk format number is 28). When I switch from Linux to FreeBSD the pool is not loaded on startup so I have to run: zpool import -f mypool as FreeBSD understands that the pool was used in a different system. mirror. Import -f complains one or more devices is currently unavailable. If the pool was not cleanly exported, ZFS requires the -f flag to prevent users from If I have a disk: sdi, and there are three entries of it in /dev/disk/by-id: Now I use zpool import -d /dev/disk/by-id zpoolname. The output of "dmesg. If you run the command sudo zfs get all it should list all the properties of you current zfs pools and file systems. 6. Improve this answer. Some vdev types allow adding disks to the vdev after To discover available pools, run the zpool import command with no options. Reply If it's not there, then zpool import should show it, if it's importable at all. To enable This feature becomes active after the next zpool import or zpool reguid. For example: The command attempts to unmount any mounted file systems within the pool before continuing. So I exported the pool and reimported the pool, in For pools to be portable, you must give the zpool command whole disks, not just partitions, so that ZFS can label the disks with portable EFI labels. But the command zpool import -c zpool. Import the pool by name with zpool import # zpool import dozer zeepool This command imports the exported pool dozer using the new name zeepool . e. But they still show up like at one point they were showing up as ata-* but I added more disks via their ZFS doesn't care what paths you use, it imports dynamically by asking each disk about its zpool information anyway, and if you have enough members of a zpool uuid present it's ready for 如果多个可用池具有相同名称，则必须使用数字标识符指定要导入的池。例如： # zpool import pool: dozer id: 2704475622193776801 state: ONLINE action: The pool can be imported using yes, by offlining the pool (export+import) zpool import will find the new disk when the original disk is missing. If they look like they really are the correct disks (hopefully they have ZFS partitions), then you can try using "zdb -l /dev/XXX" to examine the ZFS volume data structures on them, but those details are outside $ sudo zpool import no pools available to import $ sudo zpool import zpool-2tb-2021-12 cannot import 'zpool-2tb-2021-12': no such pool available. You can also pass a read-only flag on the same import with the serveral options zpool import is shipped with: no success; removing the new hard disk and trying to import with only the old two devices: no success; zdb -l on the any disk returns 4 labels containing reasonable information about the pool; Importing the pool on an Ubuntu live cd, or ZFSGuru: no success This file stores pool configuration information, such as the device names and pool state. In my situation, this issue does not occur with Debian 10 on an x86-based machine, but it does occur on a Raspberry Pi 4 running Ubuntu Server 20. That updates /etc/zfs/zpool. Was replacing one drive (probably gptid/47af1739) and after booting, pool was OFFLINE/Data not available. First zpool export then zpool import -d /dev/disk/(your preferred path). This feature might not be If the disks are recognized from your OS the command: zpool import should be enough to get the pool imported and visible in your current OS. This worked for me, then I was able to start with the drive replacement tobin / # zpool import -o rdonly=on -m -f -F -d /dev/disk/by-id/ -R /mnt/DATA/ -V -T 13081250 15184765514240561370 tank tobin / # zpool status pool: tank state: UNAVAIL status: One or more devices could not be used because the label is missing or invalid. If this file exists when running the zpool import command then it will be used to determine the list of pools available for import. So instead of typing 'zpool import' only, type 'zpool import your pool' and it will import. Remember -D to zpool import just says to list pools flagged as destroyed; it doesn't make ZFS go hunting for old pools. If booting fails with something like No pool imported. Improve zpool import search behavior 53d0daf. The disk created from the snapshot is visible on the new server with lsblk. I also added a ZFS_POOL_IMPORT=“ssd-pool” line to the defaults file. 5K 16. Note: zpool offline tank sdc, before copying if possible, this helps Run the zpool replace command to replace the disk (c1t3d0). Use the To import a specific pool, specify the pool name or its numeric identifier with the zfs import command. This setup comprises ZFS in a VM; the VM's disks are stored in VHD files on ext3 on hardware RAID (I know this is far from ideal!). added it via CLI: zfs pool import [poolname] deactivated one (1) disk per vdev: zpool offline [poolname] [disk] accessing pool fine at /mnt/[poolname] The zfs pool disks show as Unassigned Devices in web-UI but the pool operates fine and i have used the offlined disks to start building the array and migrating data (100TB), I have installed a new version of my Linux OS since I removed that drive, so I thought using the old zpool. Note - If you had previously set the pool property autoreplace to on, then any new device, found in the same physical location as a device that previously belonged to the pool is automatically formatted and replaced without using the zpool replace command. 2022-11-19. 3T 0 disk ├─sdc1 8:33 0 1007K 0 part ├─sdc2 8:34 0 512M 0 part └─sdc3 8:35 0 7. cache -N", including spaces and all. Note how your slog device is recognized There's a pool import Can confirm. 0G 5. After a pool has been identified for import, you can import it by specifying the name of the pool or its numeric identifier as an argument to the zpool import command. You signed out in another tab or window. Remove the old disks. To manage disks in a pool, click on the VDEV to expand it and show the disks in that VDEV. 7G 0% ONLINE - # zpool replace pool c1t16d0 By default, the zpool import command only searches devices within the /dev/dsk directory. If newpool is specified, the pool is imported using the name newpool. You can check the status with command. However, this means that we’ll only get the capacity of a single drive. 26. This is a colon-separated list of directories in which zpool looks for device nodes and files. Additionally, you can rename a pool while importing it. ". 6T 0 disk sdc 8:32 0 7. This command imports the exported pool system1 and renames it mpool. raidz, raidz1, raidz2, raidz3. I had to change to a backup HDD but now I would like to be able to recover some data from the other disk. The manpage for "zpool export" states: Exports the given pools from the system. 6T 0 disk sdb 8:16 0 14. I can read the drive. System complains that pool may be in use from other system, gives last accessed machine and date. ZPOOL_VDEV_NAME_GUID Cause Switch the default for 'zpool import' to use -d /dev/disk/* automatically #966. The data has since been copied onto a new zpool that I won't ever touch in a sleep-deprived state again. $ zpool import -d /dev/disk/by-id pool: threetb id: 10173957064206389394 state: ONLINE action: Hallo liebe Forengemeinde, ich habe schon wieder ein Problem mit meinem ZFS-Pool Import beim Booten. cache file is updated with the new paths and the ondisk metadata as well. DESCRIPTION. Or it might not. scan: scrub repaired 0 in 0h0m with 0 errors on Wed Jun 20 13:16:09 2012 config: NAME STATE READ WRITE You are right the options you have shown are not right. My plan is to: boot a live CD that is not aware of ZFS; copy each 3T disk onto a 4T disk; create on each 4T disk a new partition n° 18; reboot my normal system; expand my zpool over all For example adding disks to your first pool is complicated because ZFS is only used on one partition and stuff like the bootloader partition and so on need to be copied manually. If devices exist in another directory, or you are using pools backed by files, you must use the d option to search different directories. You should try zpool export mmdata to put the array offline, and then zpool import mmdata -d /dev/disk/by-id to import it $ zpool status pool: disk-pool state: DEGRADED status: One or more devices could not be used because the label is missing or invalid. devNodes = "/dev/disk/by-path"; or boot. zpool import -d /dev/disk/by-id zfs_raid10_pool i. Or from the command line, use zpool import without listing a pool, to get the other pool's name. As long as there is disk activity, I'd let it continue. [root@nas4free /proc]# zpool import hannibal cannot import 'hannibal': no such pool available [root@nas4free /proc]# zdb -l /dev You can still import your pool manually using zpool import poolname or zpool import -a. This operation flushes any unwritten data to disk, writes data to the disk indicating that the export was done, and removes all knowledge of the pool from the system. Hint: try: zpool import -R /rpool -N rpool If you add any device to the pool using /dev/sdX path, it is subject to changing, because Linux kernel does not guarantee any order for those drive entries. Once the disks are attached to the final destination host, you can use the zpool import command to import the dataset. In the example below, how can the devices in the second mirror be changed so they they reference the /dev/disk/by-id instead of /dev/sdX?. For example: $ zpool import system1 mpool. I have a 6 drive RAIDZ-1 setup. zpool create tank mirror sda sdb mirror sdc sdd Attaching a mirror device¶ Importing and exporting¶ Pool Create your zpool with /dev/sdX devices first, then do this: $ sudo zpool export tank $ sudo zpool import -d /dev/disk/by-id -aN I would still prefer to be able to do this with the initial Two ways exist for adding disks to a pool: attaching a disk to an existing vdev with zpool attach, or adding vdevs to the pool with zpool add. zpool import -f tank (or the ID again if you don't remove ada2) may be enough If not zpool import -F tank may be necessary, but may throw out some transactions, so file loss (should only be that most recently changed) is possible in order to work around the corruption to import. Dieses Mal komme ich wenigstens über ssh auf den PVE-Server. the fact that you are pointing to a file at all makes me suspect you did some kind of virtutal disk, which is a very bad idea with zfs. Or at least, I think that last pool is present in the cache file, judging by the presence of the disks hosting it in the output of strings /etc/zfs/zpool. db is on a RAM disc, not on a ZFS disc or on the memory stick (USB stick in my case). You can import a pool without mounting any file systems by passing -N to The remaining job is to import the file system. Manually import the root pool at the command prompt and then exit. 3T 0 part sdd 8:48 0 7. autoexpand=on|off. A ssh-ed into my server and it shows that gptid/4766b1cd is offline ?! root@truenas[~]# zpool import pool: Kukoleca id The Storage Dashboard screen Disks button and the Manage Disks button on the Disk Health widget both open the Disks screen. I then rebooted into 20. While reading lots of forum posts some 3 First zpool export then zpool import -d /dev/disk/(your preferred path). If so you can do zpool import -d /dev/disk/by-id tank to actually import it again EDIT: either the -f or the +f argument to lsof might help. My /etc/zfs/zpool. You can also opt for both, or change the designation at a later date if you add The 18019629936018899145 is the GUID of what was presumably a 2+ TB disk. However, sdb1 isn't listed as a potential drive there -- probably because I removed There was a answer in that direction on stackoverflow five years ago (Backup ZFS pool metadata) stating that ZFS disks will automatically be recognized when running "zpool import". what you really see is the shell complaining that it can't find a binary called "/sbin/zpool import -c /etc/zfs/zpool. A pool can be identified by its name or disk. Manage Devices on the Topology widget opens the Poolname Devices screen. The way zfs scans for drives doesn't guarantee order, so if you import your pools by id, you might end up with zfs picking up wwn-* symlinks instead of ata-* ones. devNodes = "/dev/disk/by-partuuid"; to zpool import mypool zpool replace -f -o ashift=12 mypool 12281917106237315780 /dev/sdX1 zpool replace -f -o ashift=12 mypool 11665832322838174263 /dev/sdY1 zpool Hi all, I have 12 Seagate 4TB's in a Z1 I am unable to import the pool. For example: # zpool create dozer /file/a /file/b # zpool export dozer # zpool import no pools available # zpool import -d /file pool: dozer id: # zpool import -d /mnt/sda3/ pool: mypool id: 17080681945292377797 state: ONLINE action: The pool can be imported using its name or numeric identifier. sudo zpool import -d /dev/disk/by-id/ content-pool; All returned: cannot import content-pool': one or more devices is currently unavailable Instead of doing a zpool import as a generic 'import all pools' specifying the pool name after the import command allowed the pool to be imported with one failed / missing drive. 0-U6. Identical to the previous command, The following should import your pool with disk ID: Try zpool import without any argument, it should list you the available pools. By doing so I've seen that in my case it was *-part4. by pool name instead it also mounts. zpool-reguid(8) Generates a You can create a pool and use the zpool export option on the system you create the pool on. Languages. 02:21:30 zpool import -c /etc/zfs/zpool. Similar to the -d Well, at present, I don't have any suggestions. sudo zpool import -d /dev/disk/by-id/ content-pool; All returned: cannot import content-pool': one or more devices is currently unavailable On an OmniOS server, I removed a single-disk pool I was using for testing. Ich habe auch keine Ahnung was ich dieses Mal verstellt habe. Attaching and Detaching Devices in a Storage Pool. Otherwise, it is imported with the same name as its ZPOOL_IMPORT_PATH The search path for devices or files to use with the pool. I have installed ZFS(0. cache file. If # zpool import doesn't show the pool(s), you need another 3ware (maybe even similar series) controller. First off you obviously need to be using sudo, or be root to import the pool. If you want redundancy, the way to do it would be to used a mirrored pool and, when you want to swap disks, split the pool with the zpool split command, NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 14. Normally FreeNAS would mount the zpool with a command like "zpool import -f -R /mnt Media". autoreplace=on|off. Here you'll also see the pool name, in case you've forgot it. cache -aN 2022 The pool may not be able to find your disks since you specified /dev/disk/by-id in your original pool creation. If they look like they really are the correct disks (hopefully they have ZFS partitions), then you can try using "zdb -l /dev/XXX" to examine the ZFS volume data structures on them, but those details are outside upon starting. Closed ZFS and multipathing #957. Here is the output of zpool import: [root@freenas] ~# zpool import pool: BEAST id: Just wanted to add that sometimes before I import the pool, I go into /dev/disk/by-id and remove duplicate devices that I don't want the pool to use in it's name. 6. mfwh gint lujw uzic ionmy jnoe pvaq ljzau vzc hgc