CONTENTS
#contents
----
Lastmodified &lastmod;
----
[[SMART error (CurrentPendingSector) detected on host ZFS編]]
*ZFS HDD交換 [#ef89c686]
FreeBSD 11.0-CURRENT #0 r287930 いわゆるAFT(Advanced Format Technology)なWestern DigitalのWD30EZRX 3基のrandz1
インストーラでデフォルト設定（SWAP：のみ２Gから４GにUP：必要なかったのが発覚ｗ）
http://www.wdc.com/global/products/specs/?driveID=927&language=6
http://blogs.yahoo.co.jp/alpha3166/10334103.html
http://hirotomium.com/memories/2011/11/zfsreplace.php
FreeBSD 11 Current のインストーラで出来たHDD3基によるZFSは、こんな風になっています。
root@blackhole:~ # zpool status
pool: zroot
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ada0p3 ONLINE 0 0 0
ada1p3 ONLINE 0 0 0
ada2p3 ONLINE 0 0 0
errors: No known data errors
ゴミ掃除
root@blackhole:~ # zpool clear zroot
**HDD(ada0）の交換をしてみます。 [#i0ed067f]
***ada0のシリアル番号を確認します。 [#m78d5f86]
root@blackhole:~ # camcontrol identify ada0
**HDDを外す準備をします。 [#e02be7c7]
root@blackhole:~ # zpool offline zroot ada0
cannot offline ada0: no such device in pool
root@blackhole:~ # zpool offline zroot ada0p3
partitionまで指示しないとだめなようです。
root@blackhole:~ # zpool status
pool: zroot
state: DEGRADED
status: One or more devices has been taken offline by the administrator.
Sufficient replicas exist for the pool to continue functioning in a
degraded state.
action: Online the device using 'zpool online' or replace the device with
'zpool replace'.
scan: none requested
config:
NAME STATE READ WRITE CKSUM
zroot DEGRADED 0 0 0
raidz1-0 DEGRADED 0 0 0
8999288693416647168 OFFLINE 0 0 0 was /dev/ada0p3
ada1p3 ONLINE 0 0 0
ada2p3 ONLINE 0 0 0
errors: No known data errors
**シャットダウンして、新しいHDDに交換します。 [#z071abaa]
真っ新なHDDの状態で、Online the device using 'zpool online' or replace the device with 'zpool replace' とかやっても、交換できません。
root@blackhole:~ # zpool replace zroot /dev/ada0p3
cannot open '/dev/ada0p3': No such file or directory
** ada0 に p3を作る [#x4cebbfc]
ada1の状態を見てみる。
root@blackhole:~ # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 984 - free - (492K)
2048 8388608 2 freebsd-swap (4.0G)
8390656 5852141568 3 freebsd-zfs (2.7T)
5860532224 904 - free - (452K)
まず、gpart create -s GPT ada0
root@blackhole:~ # gpart create -s GPT ada0
ada0 created
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 5860533088 - free - (2.7T)
root@blackhole:~ # gpart bootcode -b /boot/pmbr ada0
bootcode written to ada0
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 5860533088 - free - (2.7T)
root@blackhole:~ # gpart bootcode -p /boot/gptzfsboot -i 1 ada0
gpart: invalid partition index
root@blackhole:~ # gpart add -b 40 -s 1024 -t freebsd-boot ada0
ada0p1 added
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 5860532064 - free - (2.7T)
root@blackhole:~ # gpart add -b 1064 -s 8388608 -t freebsd-swap ada0
ada0p2 added
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 8388608 2 freebsd-swap (4.0G)
8389672 5852143456 - free - (2.7T)
SWAPの場所を間違えたので、修正。
root@blackhole:~ # gpart delete freebsd-swap ada0
gpart: Option 'i' not specified.
root@blackhole:~ # gpart delete -i 2 ada0
ada0p2 deleted
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 5860532064 - free - (2.7T)
消せましたので、もう一度SWAPを置きます。
実は、インストーラでWSAPが２Gとなっていて、４Gに変更したのですが、HDDあたり４Gだったんですね・・・。
root@blackhole:~ # gpart add -b 2048 -s 8388608 -t freebsd-swap ada0
ada0p2 added
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 984 - free - (492K)
2048 8388608 2 freebsd-swap (4.0G)
8390656 5852142472 - free - (2.7T)
治りました。
root@blackhole:~ # gpart add -b 8390656 -s 5852141568 -t freebsd-zfs ada0
ada0p3 added
root@blackhole:~ # gpart show ada0
=> 40 5860533088 ada0 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 984 - free - (492K)
2048 8388608 2 freebsd-swap (4.0G)
8390656 5852141568 3 freebsd-zfs (2.7T)
5860532224 904 - free - (452K)
出来かがったようです。
**リプレースコマンドを打ちます [#i0f914ad]
root@blackhole:~ # zpool replace zroot ada0p3
Make sure to wait until resilver is done before rebooting.
If you boot from pool 'zroot', you may need to update
boot code on newly attached disk 'ada0p3'.
Assuming you use GPT partitioning and 'da0' is your new boot disk
you may use the following command:
gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0
ということなので、
root@blackhole:~ # gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0
bootcode written to ada0
root@blackhole:~ # zpool status
pool: zroot
state: DEGRADED
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 Wed Sep 23 15:12:39 2015
17.1G scanned out of 507G at 166M/s, 0h50m to go
5.65G resilvered, 3.36% done
config:
NAME STATE READ WRITE CKSUM
zroot DEGRADED 0 0 0
raidz1-0 DEGRADED 0 0 0
replacing-0 UNAVAIL 0 0 0
8999288693416647168 UNAVAIL 0 0 0 was /dev/ada0p3/old
ada0p3 ONLINE 0 0 0 (resilvering)
ada1p3 ONLINE 0 0 0
ada2p3 ONLINE 0 0 0
errors: No known data errors
500GBほどのデータであれば、おおよそ1時間で再構築。案外、早い？
pool: zroot
state: ONLINE
scan: resilvered 168G in 0h52m with 0 errors on Wed Sep 23 16:04:49 2015
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
ada0p3 ONLINE 0 0 0
ada1p3 ONLINE 0 0 0
ada2p3 ONLINE 0 0 0
errors: No known data errors
*作業まとめ [#u6c7fa94]
交換するHDDは、ada0 とします。
状況確認
# zpool status
# zpool clear zroot
交換するHDDのシリアルNoを確認する
# camcontrol identify ada0
交換準備
# zpool offline zroot ada0p3
# zpool status
シャットダウンして、新しいHDDに交換します。
# gpart show ada1 の結果を参考にしてpartitionを作る
=> 40 5860533088 ada1 GPT (2.7T)
40 1024 1 freebsd-boot (512K)
1064 984 - free - (492K)
2048 8388608 2 freebsd-swap (4.0G)
8390656 5852141568 3 freebsd-zfs (2.7T)
5860532224 904 - free - (452K)
# gpart create -s GPT ada0
ada0 created
# gpart add -b 40 -s 1024 -t freebsd-boot ada0
ada0p1 added
# gpart add -b 2048 -s 8388608 -t freebsd-swap ada0
ada0p2 added
# gpart add -b 8390656 -s 5852141568 -t freebsd-zfs ada0
ada0p3 added
# gpart show ada0
# gpart show ada0 確認
新しいHDDをプールに投入
# zpool replace zroot ada0p3
Make sure to wait until resilver is done before rebooting.
If you boot from pool 'zroot', you may need to update
boot code on newly attached disk 'ada0p3'.
Assuming you use GPT partitioning and 'da0' is your new boot disk
you may use the following command:
gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 da0
# gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ada0
bootcode written to ada0
# zpool status
http://www.wirednoize.net/freebsd/index.php?zfs%20mirror%20HDD%20%E4%BA%A4%E6%8F%9B
----
Total access &counter(total);：本日 &counter(today);：昨日 &counter(yesterday);
#counter([total|today|yesterday]);
![[PukiWiki]](image/pukiwiki.png "[PukiWiki]")
