ZFS kasutamine operatsioonisüsteemiga Ubuntu 18.04 - Redigeerimiste ajalugu

Imre: /* Misc */

2023-01-08T23:06:01Z

Misc

@@ 291. rida: / 291. rida: @@
 * esimene arv - väljundi esitamise intervall
 * teine arv - mitu korda statistikat esitatakse
 ===Kasulikud lisamaterjalid===

Imre: /* Kasulikud lisamaterjalid */

2023-01-08T22:53:26Z

Kasulikud lisamaterjalid

@@ 257. rida: / 257. rida: @@
 errors: No known data errors
 </pre>
 ===Kasulikud lisamaterjalid===

Imre: /* Kasulikud lisamaterjalid */

2021-12-18T23:37:42Z

Kasulikud lisamaterjalid

←Vanem redaktsioon		Redaktsioon: 19. detsember 2021, kell 02:37
193. rida:		193. rida:

	TODO		TODO
		+
		+	===RAIDZ1 lülituse ketaste asendamine suurematega===
		+
		+	Lähtepunktiks on
		+
		+	<pre>
		+	TODO
		+	</pre>
		+
		+	Sihtpunktiks on
		+
		+	<pre>
		+	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
		+	</pre>
		+
		+	Lähtepunktist sihtpunkti jõudmiseks sobib öelda
		+
		+	# zpool replace zpool_wdc /dev/sdf /dev/disk/by-id/ata-WDC_WUS721010ALE6L4_VCHG0KBP
		+
		+	ja siis paistab olukord selline
		+
		+	<pre>
		+	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
		+	</pre>

	===Kasulikud lisamaterjalid===		===Kasulikud lisamaterjalid===

Imre: Uus lehekülg: '===Sissejuhatus=== TODO ===Tõõpõhimõte=== TODO * erinevalt mdadm raidist ei toimu taustal vaikimisi kord kuus mirrori lõhkumine ja uuesti ehitamine ===Tarkvara paigalda...'

2021-11-22T18:23:33Z

Uus lehekülg: '===Sissejuhatus=== TODO ===Tõõpõhimõte=== TODO * erinevalt mdadm raidist ei toimu taustal vaikimisi kord kuus mirrori lõhkumine ja uuesti ehitamine ===Tarkvara paigalda...'

Uus lehekülg

===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

<pre>
# 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
</pre>

Suurendamine

# zpool set autoexpand=on tank

suurendada plokkseade ja öelda partprobe

# partprobe /dev/vdb

vaadata tulemust

<pre>
# 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
</pre>

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

<pre>
# 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
</pre>

* peale 'zpool destory tank' ütlemist ja arvuti järgmist rebooti paistab selline olukord

<pre>
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.
</pre>

ZFS puhul on võimalus kasutada acl'i

TODO

===ZFS ketaste tõstmine ühest arvutist teise===

Väited

* võiks jälgida zfs versioone

<pre>
# 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.
</pre>

Millised poolid on lisatud ketaste tõttu kasutatavad

<pre>
# 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
</pre>

Kasutusse võtmine

<pre>
# 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 -
</pre>

Monteerimine alternatiivsesse asukohta

# mkdir /mnt/bpool
# zpool import -R /mnt/bpool bpool

===Checkpoint kasutamine===

TODO

===Kasulikud lisamaterjalid===

* https://blog.programster.org/sharing-zfs-datasets-via-nfs
* https://ubuntu.com/tutorials/using-zfs-snapshots-clones#1-overview