Questions tagged [zpool]
The zpool tag has no usage guidance.
94
questions
0
votes
0answers
10 views
Migrate existing ZFS lun from a faulty server to a new guest ldom
I have a Solaris 11 server with a particular LUN mapped to the server. The server got faulty along the line so I need to find a way of reusing that particular LUN on a new solaris guest LDOM.
How ...
4
votes
1answer
256 views
ZFS: device vdev wandered faulting zpool
I have a zpool thats now showing in a FAULTED state after a power outage rebooted the server & devices names got thrown around.
I understand I messed up by adding vdevs by device name, but didnt ...
0
votes
1answer
52 views
ZFS: i/o error - all block copies unavailable on reboot
I am trying to create RAID-Z pool on 3 disks, but I'm getting this error after reboot:
zpool create -f -o altroot=/mnt datapool raidz vtbd0p3 /dev/da0 /dev/da1
Error is
ZFS: i/o error - all block ...
0
votes
1answer
34 views
Creative solution for a crippled zpool (aka help a dying raid to survive for 1-2 weeks)
I have a ZFS RAIDZ-7 made by 8x4TB on a Proxmox 6 (linux kernel version: 5.4.78-2-pve, openZFS version: 0.8.5-pve1).
An unfortunate astral conjunction force me to remove 3 disk from my RAIDZ.
In ...
0
votes
1answer
77 views
Cannot see the right and used space on a ZFS dataset
I have set up a vm with debian buster and ZFS. Initially the machine booted from first hard drive, but added x4 20Gb hd and transfered the system to zfs for testing purposes.
It works, so I added some ...
1
vote
1answer
1k views
Unable to zpool drive: is in use and contains a unknown filesystem
Created raidz1 drive array on CentOS8. Five drives and after reboot zpool would not load.
Did a zpool import -a, to import the zpool and datasets. I had a missing drive, which bugs me to no avail, I'...
2
votes
1answer
250 views
Why is the available space not increased when i increase the quota of the ZFS share?
I'm not very familiar with ZFS and need to increase the size of an ZFS share on our FreeNAS.
When i do zpool list i see that we have 2 ZFS pools:
NAME SIZE ALLOC FREE EXPANDSZ FRAG ...
3
votes
1answer
431 views
zfs remove wrongly added device
I accidentally added a device as normal pool device instead of cache device. Is there a way undo this? (I basically forgot to type cache when adding the device)
I can't remove it
root@dmi-vault2:~# ...
3
votes
1answer
54 views
Expand existing RAID1 zpool into RAID10 zpool
I'd like to expand/convert my existing RAID1 (2x 3TB mirror) zpool to RAID10 zpool by adding 2 more 3TB HDDs without losing (or moving) data stored on my existing pool.
The final result will look ...
2
votes
1answer
389 views
Recover from “FAULTED” zfs pool. “-F” option seems to be ignored
On Ubuntu, I recently started trying out ZFS on an external USB hard drive. I now seem to have a corrupted zfs pool, which probably happened simply as a result of me shutting down my computer (with ...
4
votes
0answers
298 views
Recovering/importing ZFS Linux pool with duplicate pool name
I did something very stupid today in attempting to add a third mirror to an existing Linux zpool named backup. Suffice it to say that I made a couple errors because I don't really do much admin with ...
3
votes
1answer
195 views
When does “zpool scrub” delete files automatically?
Background is a general discussion about ZFS and the claim that in case of permanent errors to files, it automatically deletes files unless a correct copy is available. That sounded pretty wrong to me ...
1
vote
1answer
1k views
zpool stuck in resilvering loop
I have the following zpool:
NAME STATE READ WRITE CKSUM
zfspool ONLINE 0 0 0
mirror-0 ONLINE 0 0 ...
2
votes
1answer
159 views
zpool status shows drives are defaulted, but they seem okay. Can I add them back?
zpool status is reporting defaulted drives. But they actually appear to be okay. Is it possible to add them back?
$ dev/disk# zpool status -v
pool: darkpool
state: DEGRADED
status: One or more ...
1
vote
1answer
988 views
Why are my ZFS pools “unavailable”?
I just replaced a hard-drive, that was part of two different redundant pools, and now both pools are unavailable...
Details:
There are four drives: 2x4TB (da0 and ada1) and 2x3TB (da1 and da2).
One ...
1
vote
0answers
21 views
How to Boot to Mirrored ZFS Drive
I would like to clone an existing operating system environment. I currently have a Solaris 10 running ZFS mirrored drives on a Sun Fire x4100 box.
Can I take one of the mirrored drives, remove from ...
3
votes
1answer
600 views
Send email when zpool drive dies?
I couldn't access my media drive the other day. SSH'd into my media server to see what was up. ZFS pool wasn't even mounted. When I got it running again, I saw that it was degraded and one of the ...
2
votes
1answer
131 views
zpool replace ran successfully, but still recommends zpool replace. What is it telling me?
A drive failed in a raidz3 (pci-0000:03:00.0-scsi-0:0:10:0), and I replaced it with an available spare (wwn-0x5000c500858252ef):
pool: darkpool
state: DEGRADED
status: One or more devices are ...
1
vote
0answers
799 views
ZFS Replace Cannot Label new Disk
I am running Ubuntu 18.04.3 and zfs 0.7.5-1ubuntu16.6. I had a disk go bad and I am in the middle of replacing it. In the past, this has worked just fine by making sure the bad disk is offline, then ...
2
votes
1answer
3k views
ZFS pool degraded with faulted disk, export and replace not working
I run into troubles after trying to add more disks to my Ubuntu server device. While being a total beginner I powered the server off, added two more disks and restarted the system only to find one of ...
2
votes
1answer
2k views
Replaced a dead disk in a ZFS pool. After resilvering finished, the status look weird :/
I replaced a dead disk in a ZFS pool (on FreeNAS-11.1-U6.3) following the hints I found at Need to replace disk in zpool ... confused ...
# zpool replace raid2 gptid/f00-whatever-id-that-was-...
1
vote
1answer
1k views
How to correctly attach a disk to a zpool to create a mirror? - zpool attach says no such pool or dataset
Yesterday one of my pools which is a mirror was degraded - one of two 2TB disks failed. I replaced the failed one with another disk 4TB (ada3). Now I want to add another 4TB disk (ada1) to enlarge the ...
4
votes
1answer
995 views
ZFS pool degraded on reboot
I have a Ubuntu server set up with a 14-disk ZFS raidz2 pool.
About 80% of the time, on reboot, I will end up with a degraded pool with two of the disks marked as faulted. The drives that are ...
2
votes
2answers
487 views
ZFS replace disks in freebsd, how and when
I have the following zpool configuration:
zpool status
NAME STATE READ WRITE CKSUM
data ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
da1 ...
3
votes
1answer
902 views
Faulted zpool recovery - can I dd some disks to new disks to allow me to scavenge donors?
I am in the process of trying to recover a pool that had been degraded and neglected, then had a second mirror member fail, resulting in a faulted pool. For whatever reason, the spare never ...
3
votes
1answer
1k views
cannot import a zpool volume : I/O error
this is on nexenta open storage. I have a zpool that is in UNAVAIL state because of some disks.
# zpool import -F
pool: delta
id: XYAZA
state: UNAVAIL
status: One or more devices are ...
2
votes
1answer
835 views
ZFS (Freenas) off-lining an apparently healthy drive during scrub
I have a 4 disc RAIDZ config running on Freenas 9.1. Earlier I noticed that one of the drives had been taken offline. I ran smartctl, and all the discs passed SMART. A few days ago the machine had ...
0
votes
0answers
106 views
How to delete the pool with state = Faulted?
I have a pool named test_pool and i can only see it when "zfs import" is run. How can i delete this pool and detach associated device from it ?
# zpool import
pool: test_pool
id: ...
1
vote
1answer
2k views
Can I remove a disk from a zpool raidz2?
Unfortunately I do not really understand zfs. I have a Proxmox 5 node with 5 300GB disk in raidz2. History:
zpool create -f -o cachefile=none -o ashift=12 rpool raidz2 /dev/sda2 /dev/sdb2 /dev/sdc2 /...
0
votes
1answer
181 views
ZFS - 2 Striped mirror set to 1 mirror set, how?
Currently I'm running a ZFS striped mirror set:
NAME STATE READ WRITE CKSUM
data ONLINE 0 0 0
...
1
vote
1answer
85 views
Hard drive in zpool showed error, but later seemed ok. How do I tell if something is wrong?
My work computer has a 4 hard drives setup in a zpool on an Ubuntu system. I'm trained as a programmer, not IT, but I'm partially responsible for managing my computer. After rebooting the other day, I ...
0
votes
2answers
1k views
Increase rpool size on Solaris 11.3 ESXi Virtual Machine
I'm trying to run updates on my Solaris 11.3 server but I am unable to because there isn't enough space on my rpool. I've tried deleting log files and other useless stuff but it's not enough. ...
2
votes
1answer
574 views
mdadm reclaimed my zfs storage pool
I recently converted a mirrored mdadm partition on Ubuntu 16.04 to a zfs mirrored pool, or so I thought.
After a few days of using the zfs pool, I rebooted the system and the zfs pool disappeared.
"...
1
vote
1answer
960 views
Where'd my zpool data go?
N.B. I'm a complete noob when it comes to ZFS pools.
I created a ZFS pool yesterday across 4 3TB HDDs, like so:
2017-06-10.16:31:08 zpool create data sda sdc sdd sde
2017-06-10.16:31:29 zfs set ...
-2
votes
2answers
338 views
zfs backup script cannot receive destination zpool is renamed
Hello I have an issue with a backup script for ZFS snapshots:
basically the break down of the script is this:
### START OF SCRIPT
# These variables are named first because they are nested in other ...
4
votes
1answer
3k views
How to add more physical disks to a mirror vdev (to increase redundancy)?
Can more physical drives be added to mirror vdevs after a zpool has been created?
For example, if a zpool is created using:
zpool create test_pool mirror /dev/sd0 /dev/sd1 mirror /dev/sd2 /dev/sd3
...
2
votes
1answer
367 views
ZFS disk in two pools after reboot?
I'm pretty new to ZFS, so perhaps I'm reading this wrong.
After rebooting my server I had to reimport my pool, and upon doing some was presented with this state:
# zpool status -v
pool: data
...
-1
votes
1answer
115 views
How to export zpool from alternate disk slice?
I need some help in recovering ZFS pool. Here is scenerio. There are two disks -
c0t0d0 - This is good disk. I cloned it from other server and boot server from this disk.
c0t1d0 - This is original ...
1
vote
1answer
679 views
Unable to Import Zpool
We are facing an failure of one of our Solaris/ZFS file server. The h/w won't boot, we are not that worried about the server but the data is precious. We took out a set of 8 drives in raidz2 pool and ...
3
votes
1answer
683 views
Importing an exported pool on Solaris 11 fails
Unable to import an exported pool.
Based on the info below, am I able to somehow import the pool? Or, is there a way to retrieve the data from the drive itself?
There is no corruption on either ...
2
votes
1answer
1k views
zfs change block size without going offline
Given a raidz1 vdev on FreeBSD 10 with this config:
root@gw:~ # zpool status
pool: data
state: ONLINE
status: One or more devices are configured to use a non-native block size.
Expect ...
8
votes
1answer
2k views
ZFS vdevs accumulate checksum errors, but individual disks do not
I'm running a vendor-specific derivative of FreeNAS 9.3.
My trouble started when I installed a new JBOD chassis to add two new vdevs into my pool, and the chassis had a bad board. During this time, I ...
0
votes
3answers
187 views
Is there a zpool configuration other than raidz2 which lets me survive ANY 2 out of 4 failures?
I am going to purchase a HP Microserver gen8 system for a home fileserver and it contains 4 drive bays.
I will use those four drive bays to create a single zpool for mass storage.
My goal is the ...
3
votes
0answers
946 views
ZFS slow read speed on 8 drive 4 vdev striped mirrors
I have 8 3TB WD Red SATA drives sdb through sdi i use in my pool.
My boot and OS drive is a an 850 EVO SSD on sda.
The 8 WD drives are on a Supermicro AOC-SAS2LP-MV8 Add-on Card, 8-Channel SAS/SATA ...
5
votes
0answers
566 views
ZFS restarts resilvering over and over again. Also very slow
Here's one of my Solaris 10 servers after a couple of disk replacements in a zpool
pool: volume
state: ONLINE
status: One or more devices is currently being resilvered. The pool will
...
1
vote
0answers
143 views
zpool didn't increase after adding disk slice
i added formatted 3 different slices from a disk and added to a zpool but i didn't increase his size.
This is the pool size before adding the slide
root@snr-hosting-bta-02:~# zfs list z3363af79-edf5-...
1
vote
0answers
193 views
ZFS issue after enlarging image
I created a new img using the following command:
truncate -s 250G disk.img
and I replace the existing image that I used for zpool with that one using (lxd.img was 2G):
zpool replace lxd lxd.img ...
1
vote
1answer
251 views
zfs zpool degraded drive missing
I have a degraded zpool called storage of 4 6TB Drives in 2 mirrors. One of the drives on the second mirror is unavailable. All cables seem to to be plugged in physically. Did my device id change?
...
1
vote
2answers
4k views
zpool forgot all data devices of a pool: how to bring them online again?
My Debian server is running ZFS on Linux. Today I had to reboot it two times due to software upgrades. A first reboot because of ZFS update from some 0.6.4-1.2-1-wheezy to 0.6.5.2-2-wheezy, which went ...
10
votes
2answers
9k views
ZFS pool slow sequential read
I have a related question about this problem, but it got too complicated and too big, so I decided I should split up the issue into NFS and local issues. I have also tried asking about this on the zfs-...
