- 追加された行はこのように表示されます。
- 削除された行は
このように表示されます。
*FreeBSD-11 でディスク障害が発生した。
*FreeBSD gmirror GPT 3T HDD トリプルミラーでの障害
*セクタエラー
*障害復旧手順の記録
*zfs ではない
*GPT のバックアップ領域と gmirror の管理領域が重複するため、GPTではディスク丸ごと gmirror できない。
*FreeBSD GPT gmirror 失敗
*MBR だったらディスク丸ごと gmirror ができる。
*回避のため、GPTで複数のパーティションを作成し、それぞれのパーティションで gmirror を動作している。
*複数の gmirror が動作している。
*ここでは、bootcode + freebsd-swap + freebsd-ufs
!!!発生状況
!4/4
""SMART error (FailedOpenDevice) detected on host: ns4
This message was generated by the smartd daemon running on:
host name: ns4
DNS domain: nona.to
The following warning/error was logged by the smartd daemon:
Device: /dev/ada0, unable to open ATA device
Device info:
TOSHIBA DT01ACA300, S/N:144K58KGS, WWN:5-000039-ff4d5e59e, FW:MX6OABB0, 3.00 TB
!5/4
""SMART error (FailedOpenDevice) detected on host: ns4
This message was generated by the smartd daemon running on:
host name: ns4
DNS domain: nona.to
The following warning/error was logged by the smartd daemon:
Device: /dev/ada1, unable to open ATA device
Device info:
TOSHIBA DT01ACA300, S/N:Z7647YTAS, WWN:5-000039-fe6de1e60, FW:MX6OABB0, 3.00 TB
*I/Oエラー
root@ns4:/home/hoge # time dd if=/dev/ada1 of=/dev/null bs=1048576 skip=1295380
dd: /dev/ada1: Input/output error
5+0 records in
5+0 records out
5242880 bytes transferred in 14.679095 secs (357166 bytes/sec)
0.000u 0.001s 0:14.68 0.0% 0+0k 43+0io 0pf+0w
*1.29GB 付近でIOエラー
!過去の対応
*FreeBSD gmirror 障害復旧手順例 201805
*FreeBSD gmirror 障害復旧手順例 201905
!!!作業概要
*gmirror ada0 ada1 ada2 のトリプルミラー
*ada1 が故障
*ada1 を入れ替え
*ada1 のパーティション設定
*ada1 の起動コード書き込み
*トリプルミラー再開
!FreeBSD 正常時状況
*/boot/loader.conf
geom_mirror_load="YES"
*/etc/fstab
# Device Mountpoint FStype Options Dump Pass#
/dev/mirror/p2 / ufs rw 1 1
/dev/mirror/p3 none swap sw 0 0
*gmirror 正常時
root@ns4:/home/hoge # gmirror status -s
mirror/p1 COMPLETE ada0p1 (ACTIVE)
mirror/p1 COMPLETE ada2p1 (ACTIVE)
mirror/p1 COMPLETE ada1p1 (ACTIVE)
mirror/p2 COMPLETE ada0p2 (ACTIVE)
mirror/p2 COMPLETE ada2p2 (ACTIVE)
mirror/p2 COMPLETE ada1p2 (ACTIVE)
mirror/p3 COMPLETE ada0p3 (ACTIVE)
mirror/p3 COMPLETE ada2p3 (ACTIVE)
mirror/p3 COMPLETE ada1p3 (ACTIVE)
!!!作業記録
!!状況確認
*パーティション情報
root@ns4:/home/hoge # gpart list
Geom name: ada0
modified: false
state: OK
fwheads: 16
fwsectors: 63
last: 5860533134
first: 34
entries: 128
scheme: GPT
Providers:
1. Name: ada0p1
Mediasize: 65536 (64K)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(1,GPT,eaa06e43-7cb0-11e9-8d65-6805ca0d3e8b,0x28,0x80)
rawuuid: eaa06e43-7cb0-11e9-8d65-6805ca0d3e8b
rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
label: (null)
length: 65536
offset: 20480
type: freebsd-boot
index: 1
end: 167
start: 40
2. Name: ada0p2
Mediasize: 2996813361152 (2.7T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(2,GPT,35c63824-7cb1-11e9-8d65-6805ca0d3e8b,0xa8,0x15cdfff78)
rawuuid: 35c63824-7cb1-11e9-8d65-6805ca0d3e8b
rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
label: (null)
length: 2996813361152
offset: 86016
type: freebsd-ufs
index: 2
end: 5853151263
start: 168
3. Name: ada0p3
Mediasize: 3779517440 (3.5G)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(3,GPT,46597fa0-7cb1-11e9-8d65-6805ca0d3e8b,0x15ce00020,0x70a36e)
rawuuid: 46597fa0-7cb1-11e9-8d65-6805ca0d3e8b
rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
label: (null)
length: 3779517440
offset: 2996813447168
type: freebsd-swap
index: 3
end: 5860533133
start: 5853151264
Consumers:
1. Name: ada0
Mediasize: 3000592982016 (2.7T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r3w3e6
Geom name: ada1
modified: false
state: OK
fwheads: 16
fwsectors: 63
last: 5860533134
first: 34
entries: 128
scheme: GPT
Providers:
1. Name: ada1p1
Mediasize: 65536 (64K)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(1,GPT,afd1aa88-7d1d-11e9-8d65-6805ca0d3e8b,0x28,0x80)
rawuuid: afd1aa88-7d1d-11e9-8d65-6805ca0d3e8b
rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
label: (null)
length: 65536
offset: 20480
type: freebsd-boot
index: 1
end: 167
start: 40
2. Name: ada1p2
Mediasize: 2996813361152 (2.7T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(2,GPT,55594ddf-7d1e-11e9-8d65-6805ca0d3e8b,0xa8,0x15cdfff78)
rawuuid: 55594ddf-7d1e-11e9-8d65-6805ca0d3e8b
rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
label: (null)
length: 2996813361152
offset: 86016
type: freebsd-ufs
index: 2
end: 5853151263
start: 168
3. Name: ada1p3
Mediasize: 3779517440 (3.5G)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(3,GPT,59e22286-7d1e-11e9-8d65-6805ca0d3e8b,0x15ce00020,0x70a36e)
rawuuid: 59e22286-7d1e-11e9-8d65-6805ca0d3e8b
rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
label: (null)
length: 3779517440
offset: 2996813447168
type: freebsd-swap
index: 3
end: 5860533133
start: 5853151264
Consumers:
1. Name: ada1
Mediasize: 3000592982016 (2.7T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r3w3e6
Geom name: ada2
modified: false
state: OK
fwheads: 16
fwsectors: 63
last: 5860533134
first: 34
entries: 128
scheme: GPT
Providers:
1. Name: ada2p1
Mediasize: 65536 (64K)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(1,GPT,461f6d0d-f3c7-11e3-a841-0022cfe54d22,0x28,0x80)
rawuuid: 461f6d0d-f3c7-11e3-a841-0022cfe54d22
rawtype: 83bd6b9d-7f41-11dc-be0b-001560b84f0f
label: (null)
length: 65536
offset: 20480
type: freebsd-boot
index: 1
end: 167
start: 40
2. Name: ada2p2
Mediasize: 2996813361152 (2.7T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(2,GPT,461fe080-f3c7-11e3-a841-0022cfe54d22,0xa8,0x15cdfff78)
rawuuid: 461fe080-f3c7-11e3-a841-0022cfe54d22
rawtype: 516e7cb6-6ecf-11d6-8ff8-00022d09712b
label: (null)
length: 2996813361152
offset: 86016
type: freebsd-ufs
index: 2
end: 5853151263
start: 168
3. Name: ada2p3
Mediasize: 3779517440 (3.5G)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r1w1e1
efimedia: HD(3,GPT,468c041d-f3c7-11e3-a841-0022cfe54d22,0x15ce00020,0x70a36e)
rawuuid: 468c041d-f3c7-11e3-a841-0022cfe54d22
rawtype: 516e7cb5-6ecf-11d6-8ff8-00022d09712b
label: (null)
length: 3779517440
offset: 2996813447168
type: freebsd-swap
index: 3
end: 5860533133
start: 5853151264
Consumers:
1. Name: ada2
Mediasize: 3000592982016 (2.7T)
Sectorsize: 512
Stripesize: 4096
Stripeoffset: 0
Mode: r3w3e6
*gmirror status 確認
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada1p1 (ACTIVE)
ada2p1 (ACTIVE)
mirror/p2 COMPLETE ada0p2 (ACTIVE)
ada1p2 (ACTIVE)
ada2p2 (ACTIVE)
mirror/p3 COMPLETE ada0p3 (ACTIVE)
ada1p3 (ACTIVE)
ada2p3 (ACTIVE)
*正常に見えるが、ada1 でIOエラー
root@ns4:/home/hoge # time dd if=/dev/ada1 of=/dev/null bs=1048576 skip=1295380
dd: /dev/ada1: Input/output error
5+0 records in
5+0 records out
5242880 bytes transferred in 14.679095 secs (357166 bytes/sec)
0.000u 0.001s 0:14.68 0.0% 0+0k 43+0io 0pf+0w
*ada1 1.29GB 付近でIOエラー
!GPT パーティション情報の確認
*ada0 ada2 確認
gpart show ada0
gpart show ada1
gpart show ada2
root@ns4:/home/hoge # gpart show ada0
=> 34 5860533101 ada0 GPT (2.7T)
34 6 - free - (3.0K)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381870 3 freebsd-swap (3.5G)
5860533134 1 - free - (512B)
root@ns4:/home/hoge # gpart show ada1
=> 34 5860533101 ada1 GPT (2.7T)
34 6 - free - (3.0K)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381870 3 freebsd-swap (3.5G)
5860533134 1 - free - (512B)
root@ns4:/home/hoge # gpart show ada2
=> 34 5860533101 ada2 GPT (2.7T)
34 6 - free - (3.0K)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381870 3 freebsd-swap (3.5G)
5860533134 1 - free - (512B)
!!ada1 交換
!物理ディスク ada1 除去
*/var/log/messages
Aug 23 00:36:45 ns4 kernel: ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
Aug 23 00:36:45 ns4 kernel: ada1: <TOSHIBA MD04ACA300 FP2A> s/n 74S3K1H4FSDA detached
Aug 23 00:36:45 ns4 kernel: GEOM_MIRROR: Device p3: provider ada1p3 disconnected.GEOM_MIRROR
Aug 23 00:36:45 ns4 kernel: : Device p1: provider ada1p1 disconnected.
Aug 23 00:36:45 ns4 kernel: GEOM_MIRROR: Device p2: provider ada1p2 disconnected.
Aug 23 00:36:45 ns4 kernel: (ada1:ahcich1:0:0:0): Periph destroyed
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 DEGRADED ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
mirror/p3 DEGRADED ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
!物理ディスク ada1 接続
*/var/log/messages
Aug 23 00:40:24 ns4 kernel: ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
Aug 23 00:40:24 ns4 kernel: ada1: <TOSHIBA DT01ACA300 MX6OABB0> ATA8-ACS SATA 3.x device
Aug 23 00:40:24 ns4 kernel: ada1: Serial Number 29O6V7GAS
Aug 23 00:40:24 ns4 kernel: ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
Aug 23 00:40:24 ns4 kernel: ada1: Command Queueing enabled
Aug 23 00:40:24 ns4 kernel: ada1: 2861588MB (5860533168 512 byte sectors)
Aug 23 00:40:24 ns4 kernel: GEOM: ada1: the secondary GPT header is not in the last LBA.
Aug 23 00:40:24 ns4 kernel: GEOM: diskid/DISK-29O6V7GAS: the secondary GPT header is not in the last LBA.
!ada1 GPT パーティション作成
*ada1 GPT パーティションを確認
root@ns4:/home/hoge # gpart show ada1
=> 34 5860533100 ada1 GPT (2.7T) [CORRUPT]
34 65501 - free - (32M)
65535 5860467375 1 linux-data (2.7T)
5860532910 224 - free - (112K)
*Linux のパーティションが存在する。
gpart delete -i 1 ada1
root@ns4:/home/hoge # gpart delete -i 1 ada1
gpart: table 'ada1' is corrupt: Operation not permitted
root@ns4:/home/hoge # gpart recover /dev/ada1
ada1 recovered
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 65495 - free - (32M)
65535 5860467375 1 linux-data (2.7T)
5860532910 218 - free - (109K)
root@ns4:/home/hoge # gpart delete -i 1 ada1
ada1p1 deleted
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 5860533088 - free - (2.7T)
*ada0 GPT 管理情報作成
gpart create -s gpt /dev/ada1
root@ns4:/home/hoge # gpart create -s gpt /dev/ada1
gpart: geom 'ada1': File exists
*GPT 管理情報は既に存在している。
*ada1 GPT 初期状況確認
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 5860533088 - free - (2.7T)
!ada0 FreeBSD pmbr インストール
:pmbr:Proactive Master Boot Record
root@ns4:/home/hoge # ls -l /boot/pmbr
root@ns4:/home/hoge # gpart bootcode -b /boot/pmbr ada1
bootcode written to ada1
*MBR ツールによる破壊を防止するための疑似MBR情報+GPT起動コード
!ada1 FreeBSD bootcode インストール
*コマンド
ls -l /boot/gptboot
gpart add -b 40 -s 128 -t freebsd-boot ada1
gpart bootcode -p /boot/gptboot -i 1 ada1
*ada0 GPT 情報より freebsd-boot 領域のサイズは 128
*ログ
root@ns4:/home/hoge # ls -l /boot/gptboot
-r--r--r-- 1 root wheel 59074 Aug 10 2019 /boot/gptboot
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 5860533088 - free - (2.7T)
root@ns4:/home/hoge # gpart add -b 40 -s 128 -t freebsd-boot ada1
ada1p1 added
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 128 1 freebsd-boot (64K)
168 5860532960 - free - (2.7T)
*(参考) GPT パーティションの除去
*コマンド
gpart delete -i 1 ada1
*ログ
root@ns4:/home/hoge # gpart show ada1
=> 34 5860533101 ada1 GPT (2.7T)
34 6 - free - (3.0K)
40 5860533088 1 freebsd-boot (2.7T)
5860533128 7 - free - (3.5K)
root@ns4:/home/hoge # gpart delete -i 1 ada1
ada1p1 deleted
root@ns4:/home/hoge # gpart show ada1
=> 34 5860533101 ada1 GPT (2.7T)
34 5860533101 - free - (2.7T)
!ada0 GPT パーティション作成
*コマンド
gpart add -t freebsd-ufs -s 5853151096 ada1
gpart add -t freebsd-swap -s 7381870 -a 2 ada1
*ログ
root@ns4:/home/hoge # gpart add -t freebsd-ufs -s 5853151096 ada1
ada1p2 added
root@ns4:/home/hoge # gpart add -t freebsd-swap -s 7381870 -a 2 ada1
gpart: autofill: No space left on device
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381864 - free - (3.5G)
root@ns4:/home/hoge # gpart add -t freebsd-swap -s 7381864 -a 2 ada1
ada1p3 added
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381864 3 freebsd-swap (3.5G)
*ada2 と*ほぼ*同じパーティション情報を ada1 に作成した。
*freebsd-swap のサイズが小さいので復旧できていない。別途対応
*gpart backup と gpart restore でパーティション情報を復旧するべき(要確認)
!GPT パーティション状況確認
gpart show ada0
gpart show ada2
*同じパーティション情報であることを確認した。
!gmirror 再構築
*単純に insert はできない。
root@ns4:/home/hoge # gmirror insert p1 /dev/ada1p1
gmirror: Not all disks connected.
!DEGRADED 確認
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 DEGRADED ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
mirror/p3 DEGRADED ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
!p1 DEGRADED 状況を解消する
root@ns4:/home/hoge # gmirror forget p1
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
mirror/p3 DEGRADED ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
!p1 に ada1p1 を追加
root@ns4:/home/hoge # gmirror insert p1 /dev/ada1p1
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
ada1p1 (ACTIVE)
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
mirror/p3 DEGRADED ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
!p3 に ada0p3 を追加
root@ns4:/home/hoge # gmirror forget p3
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
ada1p1 (ACTIVE)
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
mirror/p3 COMPLETE ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
root@ns4:/home/hoge # gmirror insert p3 /dev/ada1p3
gmirror: Provider ada1p3 too small.
*ディスクのサイズが小さく、p3 が追加できない。
*元ディスクの p3 のサイズは 7381870
*新ディスクの p3 のサイズは 7381864
*メッセージ確認
> grep GEOM_MIRROR /var/log/messages
Aug 23 01:40:39 ns4 kernel: GEOM_MIRROR: Device p1: rebuilding provider ada1p1.
Aug 23 01:40:39 ns4 kernel: GEOM_MIRROR: Device p1: rebuilding provider ada1p1 finished.
!p2 に ada2p2 を追加
root@ns4:/home/hoge # gmirror status p2
Name Status Components
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
root@ns4:/home/hoge # gmirror forget p2
root@ns4:/home/hoge # gmirror status p2
Name Status Components
mirror/p2 COMPLETE ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
root@ns4:/home/hoge # gmirror insert p2 /dev/ada1p2
root@ns4:/home/hoge # gmirror status p2
Name Status Components
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
ada1p2 (SYNCHRONIZING, 0%)
*途中経過
root@ns4:/home/hoge # gmirror status p2
Name Status Components
mirror/p2 DEGRADED ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
ada1p2 (SYNCHRONIZING, 85%)
*復旧完了状況確認
gmirror status
root@ns4:/home/hoge # gmirror status p2
Name Status Components
mirror/p2 COMPLETE ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
ada1p2 (ACTIVE)
*p2 が DEGRADED から COMPLETE に変わった。
*/var/log/messages
root@ns4:/home/hoge # grep GEOM_MIRROR /var/log/messages
Aug 23 01:45:20 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada1p2.
Aug 23 11:36:34 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada1p2 finished.
*2018年5月は9時間で完了
May 28 18:32:14 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada1p2.
May 29 03:29:06 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada1p2 finished.
*2019年5月は10時間で完了
May 23 01:57:29 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada0p2.
May 23 11:47:46 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada0p2 finished.
*2020年8月は10時間で完了
Aug 23 01:45:20 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada1p2.
Aug 23 11:36:34 ns4 kernel: GEOM_MIRROR: Device p2: rebuilding provider ada1p2 finished.
!freebsd-swap 対応
root@ns4:/home/hoge # swapinfo
Device 1K-blocks Used Avail Capacity
/dev/mirror/p3 3690932 198020 3492912 5%
root@ns4:/home/hoge # gmirror status p3
Name Status Components
mirror/p3 COMPLETE ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
*作業前
root@ns4:/home/nonaka # gpart show ada1
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381864 3 freebsd-swap (3.5G)
*freebsd-swap 削除
root@ns4:/home/nonaka # gpart delete -i 3 ada1
root@ns4:/home/hoge # gpart delete -i 3 ada1
ada1p3 deleted
root@ns4:/home/nonaka # gpart show ada1
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7381864 - free - (3.5G)
*縮小して再作成
gpart add -t freebsd-swap -s 7340032 ada1
root@ns4:/home/nonaka # gpart add -t freebsd-swap -s 7340032 ada1
root@ns4:/home/hoge # gpart add -t freebsd-swap -s 7340032 ada1
ada1p3 added
root@ns4:/home/nonaka # gpart show ada1
root@ns4:/home/hoge # gpart show ada1
=> 40 5860533088 ada1 GPT (2.7T)
40 128 1 freebsd-boot (64K)
168 5853151096 2 freebsd-ufs (2.7T)
5853151264 7340032 3 freebsd-swap (3.5G)
5860491296 41832 - free - (20M)
*swap 停止
root@ns4:/home/nonaka # swapinfo
root@ns4:/home/hoge # swapinfo
Device 1K-blocks Used Avail Capacity
/dev/mirror/p3 3690932 198020 3492912 5%
root@ns4:/home/nonaka # swapoff /dev/mirror/p3
root@ns4:/home/hoge # swapoff /dev/mirror/p3
root@ns4:/home/nonaka # swapinfo
root@ns4:/home/hoge # swapinfo
Device 1K-blocks Used Avail Capacity
*gmirror p3 削除
gmirror stop p3
gmirror destroy p3
gmirror label -v -b round-robin -s 65536 p3 ada1p3 ada0p3 ada2p3
root@ns4:/home/nonaka # gmirror stop p3
root@ns4:/home/hoge # gmirror stop p3
root@ns4:/home/nonaka # gmirror status
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
ada1p1 (ACTIVE)
mirror/p2 COMPLETE ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
ada1p2 (ACTIVE)
mirror/p3 COMPLETE gptid/468c041d-f3c7-11e3-a841-0022cfe54d22 (ACTIVE)
gptid/46597fa0-7cb1-11e9-8d65-6805ca0d3e8b (ACTIVE)
root@ns4:/home/nonaka # gmirror destroy p3
root@ns4:/home/hoge # gmirror destroy p3
root@ns4:/home/nonaka # gmirror status
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
ada1p1 (ACTIVE)
mirror/p2 COMPLETE ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
ada1p2 (ACTIVE)
root@ns4:/home/nonaka # gmirror label -v -b round-robin -s 65536 p3 ada1p3 ada0p3 ada2p3
root@ns4:/home/hoge # gmirror label -v -b round-robin -s 65536 p3 ada1p3 ada0p3 ada2p3
Metadata value stored on ada1p3.
Metadata value stored on ada0p3.
Metadata value stored on ada2p3.
Done.
root@ns4:/home/nonaka # gmirror status
root@ns4:/home/hoge # gmirror status
Name Status Components
mirror/p1 COMPLETE ada0p1 (ACTIVE)
ada2p1 (ACTIVE)
ada1p1 (ACTIVE)
mirror/p2 COMPLETE ada0p2 (ACTIVE)
ada2p2 (ACTIVE)
ada1p2 (ACTIVE)
mirror/p3 COMPLETE ada1p3 (ACTIVE)
ada0p3 (ACTIVE)
ada2p3 (ACTIVE)
root@ns4:/home/nonaka # swapinfo
root@ns4:/home/hoge # swapinfo
Device 1K-blocks Used Avail Capacity
root@ns4:/home/nonaka # swapon /dev/mirror/p3
root@ns4:/home/nonaka # swapinfo
root@ns4:/home/hoge # swapon /dev/mirror/p3
root@ns4:/home/hoge # swapinfo
Device 1K-blocks Used Avail Capacity
/dev/mirror/p3 3670012 0 3670012 0%
*gmirror p3 縮小して再作成
!起動確認
*3台のHDDを入れ替えて3台とも起動できることを確認する。
*pmbr は正常か? bootcode は正常か? 確認する。
*shutdown
*HDD1-->HDD2-->HDD3-->HDD1
*起動確認
*shutdown
*HDD1-->HDD2-->HDD3-->HDD1
*起動確認
*shutdown
*HDD1-->HDD2-->HDD3-->HDD1
*起動確認