ZFS kasutamine operatsioonisüsteemiga Ubuntu 18.04
Allikas: Imre kasutab arvutit
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Sissejuhatus
TODO
Tõõpõhimõte
TODO
- erinevalt mdadm raidist ei toimu taustal vaikimisi kord kuus mirrori lõhkumine ja uuesti ehitamine
Tarkvara paigaldamine
# apt-get install zfsutils-linux
Kasutamine
Pool tekitamine
# zpool create -o ashift=12 tank /dev/vdb
Tulemus
# zpool list NAME SIZE ALLOC FREE EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT tank 21.9G 468K 21.9G - 0% 0% 1.00x ONLINE -
taustal tekib kaks partitsiooni
# fdisk /dev/sdb -l Disk /dev/sdb: 1 TiB, 1099511627776 bytes, 2147483648 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 16384 bytes / 16777216 bytes Disklabel type: gpt Disk identifier: 459DC343-EA59-DC4F-AD3F-C2033AB84C2A Device Start End Sectors Size Type /dev/sdb1 2048 2147465215 2147463168 1024G Solaris /usr & Apple ZFS /dev/sdb9 2147465216 2147481599 16384 8M Solaris reserved 1
Suurendamine
# zpool set autoexpand=on tank
suurendada plokkseade ja öelda partprobe
# partprobe /dev/vdb
vaadata tulemust
# zpool status -v pool: tank state: ONLINE scan: none requested config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 vdb ONLINE 0 0 0 errors: No known data errors
Mountpoint määramine, nt
# zfs set mountpoint=/srv/vmail tank
NFS
Serveris
# zfs set sharenfs=on tank/imre-1
Kliendis
# mount 192.168.110.89:/srv/imre-yks /mnt # mount .. 192.168.110.89:/srv/imre-yks on /mnt type nfs4 (rw,relatime,vers=4.2,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.110.33,local_lock=none,addr=192.168.110.89)
Märkused
- systemctl zfs asjad
# systemctl | grep zfs ● zfs-import-cache.service loaded failed failed Import ZFS pools by cache file zfs-load-module.service loaded active exited Install ZFS kernel module zfs-mount.service loaded active exited Mount ZFS filesystems zfs-share.service loaded active exited ZFS file system shares zfs-zed.service loaded active running ZFS Event Daemon (zed) zfs-import.target loaded active active ZFS pool import target zfs.target loaded active active ZFS startup target
- peale 'zpool destory tank' ütlemist ja arvuti järgmist rebooti paistab selline olukord
root@portaal-to-maildir-1a:~# systemctl status zfs-import-cache.service
● zfs-import-cache.service - Import ZFS pools by cache file
Loaded: loaded (/lib/systemd/system/zfs-import-cache.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sat 2019-02-16 20:22:36 EET; 1min 8s ago
Docs: man:zpool(8)
Process: 572 ExecStart=/sbin/zpool import -c /etc/zfs/zpool.cache -aN (code=exited, status=1/FAILURE)
Main PID: 572 (code=exited, status=1/FAILURE)
Feb 16 20:22:34 portaal-to-maildir-1a systemd[1]: Starting Import ZFS pools by cache file...
Feb 16 20:22:36 portaal-to-maildir-1a zpool[572]: cannot import 'tank': no such pool or dataset
Feb 16 20:22:36 portaal-to-maildir-1a zpool[572]: Destroy and re-create the pool from
Feb 16 20:22:36 portaal-to-maildir-1a zpool[572]: a backup source.
Feb 16 20:22:36 portaal-to-maildir-1a systemd[1]: zfs-import-cache.service: Main process exited, code=exited, status=1/FAILURE
Feb 16 20:22:36 portaal-to-maildir-1a systemd[1]: zfs-import-cache.service: Failed with result 'exit-code'.
Feb 16 20:22:36 portaal-to-maildir-1a systemd[1]: Failed to start Import ZFS pools by cache file.
ZFS puhul on võimalus kasutada acl'i
TODO
ZFS ketaste tõstmine ühest arvutist teise
Väited
- võiks jälgida zfs versioone
# zpool upgrade -v
This system supports ZFS pool feature flags.
The following features are supported:
FEAT DESCRIPTION
-------------------------------------------------------------
async_destroy (read-only compatible)
Destroy filesystems asynchronously.
empty_bpobj (read-only compatible)
...
The following legacy versions are also supported:
VER DESCRIPTION
--- --------------------------------------------------------
1 Initial ZFS version
2 Ditto blocks (replicated metadata)
...
25 Improved scrub stats
26 Improved snapshot deletion performance
27 Improved snapshot creation performance
28 Multiple vdev replacements
For more information on a particular version, including supported releases,
see the ZFS Administration Guide.
Millised poolid on lisatud ketaste tõttu kasutatavad
# zpool import
pool: sn_zfs_ssd
id: 2639366720711406682
state: ONLINE
status: The pool was last accessed by another system.
action: The pool can be imported using its name or numeric identifier and
the '-f' flag.
see: http://zfsonlinux.org/msg/ZFS-8000-EY
config:
sn_zfs_ssd ONLINE
sda ONLINE
sdb ONLINE
Kasutusse võtmine
# zpool import -f sn_zfs_ssd # zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT sn_zfs_ssd 1.81T 988G 868G - - 23% 53% 1.00x ONLINE -
Monteerimine alternatiivsesse asukohta
# mkdir /mnt/bpool # zpool import -R /mnt/bpool bpool
Checkpoint kasutamine
TODO
RAIDZ1 lülituse ketaste asendamine suurematega
Lähtepunktiks on
TODO
Sihtpunktiks on
root@pm60-trt:~# zpool status zpool_wdc pool: zpool_wdc state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P scan: resilvered 2.61T in 10:45:50 with 0 errors on Sat Dec 18 22:25:31 2021 config: NAME STATE READ WRITE CKSUM zpool_wdc ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 ata-WDC_WUS721010ALE6L4_VCHERZ5P ONLINE 12 0 0 ata-WDC_WUS721010ALE6L4_VCHG26ZP ONLINE 0 0 0 ata-WDC_WUS721010ALE6L4_VCHG127P ONLINE 0 0 0 ata-WDC_WUS721010ALE6L4_VCHG0KBP ONLINE 0 0 0 errors: No known data errors
Lähtepunktist sihtpunkti jõudmiseks sobib öelda
# zpool replace zpool_wdc /dev/sdf /dev/disk/by-id/ata-WDC_WUS721010ALE6L4_VCHG0KBP
ja siis paistab olukord selline
root@pm60-trt:~# zpool status zpool_wdc pool: zpool_wdc state: ONLINE status: One or more devices is currently being resilvered. The pool will continue to function, possibly in a degraded state. action: Wait for the resilver to complete. scan: resilver in progress since Sat Dec 18 11:39:41 2021 9.92T scanned at 312M/s, 9.02T issued at 284M/s, 10.4T total 2.26T resilvered, 86.56% done, 01:26:19 to go config: NAME STATE READ WRITE CKSUM zpool_wdc ONLINE 0 0 0 raidz1-0 ONLINE 0 0 0 ata-WDC_WUS721010ALE6L4_VCHERZ5P ONLINE 12 0 0 (resilvering) ata-WDC_WUS721010ALE6L4_VCHG26ZP ONLINE 0 0 0 ata-WDC_WUS721010ALE6L4_VCHG127P ONLINE 0 0 0 replacing-3 ONLINE 0 0 0 sdf ONLINE 0 0 0 ata-WDC_WUS721010ALE6L4_VCHG0KBP ONLINE 0 0 0 (resilvering) errors: No known data errors
Misc
Toimuva jälgimine
root@pbs:~# zpool iostat -vyl 1 2
capacity operations bandwidth total_wait disk_wait syncq_wait asyncq_wait scrub trim
pool alloc free read write read write read write read write read write read write wait wait
---------------------------------------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
zpool_wdc 31.4T 4.94T 5.50K 0 874M 0 1ms - 1ms - - - - - 495us -
raidz1-0 31.4T 4.94T 5.50K 0 874M 0 1ms - 1ms - - - - - 495us -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi0 - - 237 0 219M 0 24ms - 12ms - - - - - 8ms -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi2 - - 1.76K 0 218M 0 794us - 699us - - - - - 144us -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 - - 1.75K 0 219M 0 789us - 699us - - - - - 135us -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi3 - - 1.75K 0 218M 0 839us - 736us - - - - - 147us -
---------------------------------------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
capacity operations bandwidth total_wait disk_wait syncq_wait asyncq_wait scrub trim
pool alloc free read write read write read write read write read write read write wait wait
---------------------------------------- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----
zpool_wdc 31.4T 4.94T 4.52K 203 793M 1.50M 2ms 3ms 1ms 894us 512ns 408ns - 2ms 618us -
raidz1-0 31.4T 4.94T 4.52K 203 793M 1.50M 2ms 3ms 1ms 894us 512ns 408ns - 2ms 618us -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi0 - - 228 48 199M 391K 23ms 3ms 11ms 842us 384ns 480ns - 2ms 7ms -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi2 - - 1.50K 44 197M 359K 1ms 3ms 840us 1ms 768ns 384ns - 1ms 207us -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi1 - - 1.47K 53 199M 395K 1ms 3ms 856us 793us - 384ns - 2ms 207us -
scsi-0QEMU_QEMU_HARDDISK_drive-scsi3 - - 1.32K 55 198M 391K 1ms 3ms 1ms 849us 384ns 384ns - 3ms 373us -
kus
- -y - ära esita esimese väljundi komplektina alates süsteemi boodist kohta käivat statistikat
- -l - esita latentsuse statistika lisaks
- esimene arv - väljundi esitamise intervall
- teine arv - mitu korda statistikat esitatakse
