Questions tagged [zfs]
ZFS is a modern file system and volume manager originally developed by Sun Microsystems and licensed under the CDDL. It is a copy-on-write file system with support for large storage arrays, protection against corruption, snapshots, clones, compression, deduplication and NFSv4 ACLs. An open-source fork of ZFS can be found at http://open-zfs.org/ , which is supported by ZFSonlinux.org, illumos.org and ZFS developers in the FreeBSD & Mac OS X communities.
1,433
questions
1
vote
1
answer
15
views
How to get IP details of passive cluster?
I have Sun Oracle ZFS storage ZS7-2 model. It is a 2 node cluster active and passive.
Unfortunately I have only active node IP details to login.
Can anyone help me on how to get passive node IP ...
siva swamy
0
votes
0
answers
17
views
Impossible to make space on full zfs pool
I have this zfs pool which seems to be full because of some reservations
# zpool get all data2
NAME PROPERTY VALUE SOURCE
data2 size ...
- 31
3
votes
1
answer
67
views
Comments on new SAN for small enterprise
We currently have 4 FC arrays containing sixteen 300GB drives each in a Sun StorageTek 6140 chassis connected to an old Sun X4170 M2 server running OpenIndiana. This has been working well for the past ...
2
votes
0
answers
35
views
How to set a quota on Logical Disk Space (logicalused) in ZFS?
I am currently using ZFS and need to set a quota on the logical disk space (logicalused) rather than the physical disk space used after compression. The quota and refquota properties in ZFS set a ...
- 143
2
votes
1
answer
33
views
ZFS Kernel Panic Issue and Troubleshooting Steps
Experiencing kernel panic with the error message "PANIC: zfs: adding existent segment to range tree" when attempting to import the ZFS pool (rpool). The system hangs upon import attempts, ...
- 21
1
vote
0
answers
81
views
0
votes
0
answers
30
views
Data corruption in Windows Server VM on Proxmox
I ran into a strange data corruption issue in a VM running on Proxmox VE which I need help with. The VM in question is Windows Server 2016 Standard, used primarily as a file server.
On this VM, I ...
1
vote
0
answers
30
views
ZFS: resilver restarted after the scan finished
As described here I had two dead drives on my raidz2 setup. I shut down the machine, replaced one drive, then booted up. My idea was to resilver disks one by one, but the resilver process for the ...
- 413
3
votes
2
answers
112
views
ZFS folder very slow after having many files
I am running Ubuntu 24.04 using ZFS for my filesystems. This is on a laptop whose only storage device is a WD Black SN850X NVMe card. The default Ubuntu installation process configured two ZFS pools:
...
- 161
2
votes
1
answer
164
views
ZFS "cannot open" and "too many errors"
I got an alert this morning that one of my arrays was having a problem. I can't seem to get past it. I'm not sure how to proceed.
admin@ICSSAN1:~$ zpool status -v
pool: SAS_Array
state: UNAVAIL
...
- 21
1
vote
1
answer
70
views
How I do recover from an offline, but OK drive on a ZFS mirror?
I have a ZPool consisting in two drives in a mirror configuration. It seems that during server manteinance (cleaning), one of the drives went offline because the wiring came lose.
# zpool status -v ...
- 111
1
vote
1
answer
68
views
ZFS disk replacement identification?
I am still a newbie with ZFS. We had a faulty disk in a ZFS pool (using Ubuntu 22.04.2. LTS). It had been replaced automatically by a spare disk (I try to quote only the relevant parts):
zpool status ...
- 43
1
vote
0
answers
41
views
ZFS ARC ghost memory usage
Are arcstats:mru_ghost_evictable_metadata and arcstats:mfu_ghost_evictable_metadata the number of bytes stored in RAM by the arc ghost list?
If so, is this memory usage also accounted for in the ...
- 121
0
votes
0
answers
49
views
Disk does not spin down for unknown reasons - How to debug?
I have a setup where we need to spin down HDDs that host a zfs array for energy reasons. I use hdparm to configure apm = 24 and spindown_time = 24 for all disks.
The system works as expected most of ...
- 11
0
votes
0
answers
172
views
Repartitioning proxmox root/data LVM and zfs pool recovery
Ok so I created my first proxmox virtual environment about a month or two ago and due to inexperience and miscalculations I created a partition table I am not really happy with. Along with that it ...
- 11