RAID1で構築しているパーティションが余っていたので、その領域を縮小させ、こちらのパーティションを拡張する。
1本目の作業が終わったので、RAID1からの切り離し以降の作業を2本目に対しても行う。
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sdb3[3] sda3[2]
33553336 blocks super 1.2 [2/2] [UU]
md4 : active raid1 sdb4[3] sda4[2]
125829120 blocks super 1.2 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sdb1[1] sda1[0]
524224 blocks [2/2] [UU]
unused devices: <none>
同期が完了していることが確認できたら、対象となるディスクをRAID1から切り離していく。
root@edo / # mdadm /dev/md1 --fail /dev/sda1 --remove /dev/sda1 mdadm: set /dev/sda1 faulty in /dev/md1 mdadm: hot removed /dev/sda1 from /dev/md1 root@edo / # mdadm /dev/md3 --fail /dev/sda3 --remove /dev/sda3 mdadm: set /dev/sda3 faulty in /dev/md3 mdadm: hot removed /dev/sda3 from /dev/md3 root@edo / # mdadm /dev/md4 --fail /dev/sda4 --remove /dev/sda4 mdadm: set /dev/sda4 faulty in /dev/md4 mdadm: hot removed /dev/sda4 from /dev/md4切り離しが完了したことを確認。
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sdb3[3]
33553336 blocks super 1.2 [2/1] [_U]
md4 : active raid1 sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sdb1[1]
524224 blocks [2/1] [_U]
unused devices: <none>
fdiskでディスクサイズを調整する。 まずは現状の確認。
root@edo / # fdisk -l /dev/sda Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors Disk model: Samsung SSD 850 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: gpt Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA Device Start End Sectors Size Type /dev/sda1 2048 1050623 1048576 512M Linux RAID /dev/sda2 1050624 1116159 65536 32M BIOS boot /dev/sda3 13633536 80742399 67108864 32G Linux RAID /dev/sda4 80742400 923797503 843055104 402G Linux RAID /dev/sda5 923797504 976773134 52975631 25.3G Linux RAID /dev/sda6 1116160 13633535 12517376 6G Linux swap Partition table entries are not in disk order. root@edo ~ Sun 02 Aug 2020 01:36:51 PM JST JST(+0900) # fdisk -l /dev/sdb Disk /dev/sdb: 465.78 GiB, 500107862016 bytes, 976773168 sectors Disk model: Crucial_CT500MX2 Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: gpt Disk identifier: 0D638A13-AA1D-4131-8BB7-6DE88A59EDBA Device Start End Sectors Size Type /dev/sdb1 2048 1050623 1048576 512M Linux RAID /dev/sdb2 1050624 1116159 65536 32M BIOS boot /dev/sdb3 1116160 126945279 125829120 60G Linux RAID /dev/sdb4 126945280 546375679 419430400 200G Linux RAID /dev/sdb5 546375680 963708927 417333248 199G Linux RAID /dev/sdb6 963708928 976773134 13064207 6.2G Linux swapスワップファイルを停止するのを忘れないように。
停止の前に、sdbのスワップを有効にすること。
root@edo / # swapon NAME TYPE SIZE USED PRIO /dev/sda6 partition 6G 0B 1 root@edo / # swapon /dev/sdb6 root@edo / # swapon NAME TYPE SIZE USED PRIO /dev/sda6 partition 6G 0B 1 /dev/sdb6 partition 6.2G 0B -2 root@edo / # swapoff /dev/sda6 root@edo / # swapon NAME TYPE SIZE USED PRIO /dev/sdb6 partition 6.2G 0B -2fdiskでの作業。
root@edo /
# fdisk /dev/sda
Welcome to fdisk (util-linux 2.35.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 850
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M Linux RAID
/dev/sda2 1050624 1116159 65536 32M BIOS boot
/dev/sda3 13633536 80742399 67108864 32G Linux RAID
/dev/sda4 80742400 923797503 843055104 402G Linux RAID
/dev/sda5 923797504 976773134 52975631 25.3G Linux RAID
/dev/sda6 1116160 13633535 12517376 6G Linux swap
Partition table entries are not in disk order.
Command (m for help): d
Partition number (1-6, default 6): 6
Partition 6 has been deleted.
Command (m for help): d
Partition number (1-5, default 5):
Partition 5 has been deleted.
Command (m for help): d
Partition number (1-4, default 4):
Partition 4 has been deleted.
Command (m for help): d
Partition number (1-3, default 3):
Partition 3 has been deleted.
Command (m for help): n
Partition number (3-128, default 3):
First sector (1116160-976773134, default 1116160):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (1116160-976773134, default 976773134): +60G
Created a new partition 3 of type 'Linux filesystem' and of size 60 GiB.
Partition #3 contains a swap signature.
Do you want to remove the signature? [Y]es/[N]o: Y
The signature will be removed by a write command.
Command (m for help): n
Partition number (4-128, default 4):
First sector (126945280-976773134, default 126945280):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (126945280-976773134, default 976773134): +200G
Created a new partition 4 of type 'Linux filesystem' and of size 200 GiB.
Command (m for help): n
Partition number (5-128, default 5):
First sector (546375680-976773134, default 546375680):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (546375680-976773134, default 976773134): +199G
Created a new partition 5 of type 'Linux filesystem' and of size 199 GiB.
Command (m for help): n
Partition number (6-128, default 6):
First sector (963708928-976773134, default 963708928):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (963708928-976773134, default 976773134):
Created a new partition 6 of type 'Linux filesystem' and of size 6.2 GiB.
Command (m for help): p
Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 850
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M Linux RAID
/dev/sda2 1050624 1116159 65536 32M BIOS boot
/dev/sda3 1116160 126945279 125829120 60G Linux filesystem
/dev/sda4 126945280 546375679 419430400 200G Linux filesystem
/dev/sda5 546375680 963708927 417333248 199G Linux filesystem
/dev/sda6 963708928 976773134 13064207 6.2G Linux filesystem
Filesystem/RAID signature on partition 3 will be wiped.
Command (m for help): t
Partition number (1-6, default 6): 3
Partition type (type L to list all types): 29
Changed type of partition 'Linux filesystem' to 'Linux RAID'.
Command (m for help): t
Partition number (1-6, default 6): 4
Partition type (type L to list all types): 29
Changed type of partition 'Linux filesystem' to 'Linux RAID'.
Command (m for help): t
Partition number (1-6, default 6): 5
Partition type (type L to list all types): 29
Changed type of partition 'Linux filesystem' to 'Linux RAID'.
Command (m for help): t
Partition number (1-6, default 6): 6
Partition type (type L to list all types): 19
Changed type of partition 'Linux filesystem' to 'Linux swap'.
Command (m for help): p
Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 850
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M Linux RAID
/dev/sda2 1050624 1116159 65536 32M BIOS boot
/dev/sda3 1116160 126945279 125829120 60G Linux RAID
/dev/sda4 126945280 546375679 419430400 200G Linux RAID
/dev/sda5 546375680 963708927 417333248 199G Linux RAID
/dev/sda6 963708928 976773134 13064207 6.2G Linux swap
Filesystem/RAID signature on partition 3 will be wiped.
Command (m for help): w
The partition table has been altered.
Failed to remove partition 6 from system: Device or resource busy
Failed to add partition 3 to system: Device or resource busy
Failed to add partition 6 to system: Device or resource busy
The kernel still uses the old partitions. The new table will be used at the next reboot.
Syncing disks.
上記では、実はswapを停止するのを忘れていたので、同じ間違いが発生。 なので、swapoffしてもう一度やり直してみた。今度はエラーなしでできた。
続いてmd3の作業。
続いて、md4の作業。
同期の完了を待つ。
root@edo /
# fdisk /dev/sda
Welcome to fdisk (util-linux 2.35.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 850
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M Linux RAID
/dev/sda2 1050624 1116159 65536 32M BIOS boot
/dev/sda3 1116160 126945279 125829120 60G Linux RAID
/dev/sda4 126945280 546375679 419430400 200G Linux RAID
/dev/sda5 546375680 963708927 417333248 199G Linux RAID
/dev/sda6 963708928 976773134 13064207 6.2G Linux swap
Command (m for help): d
Partition number (1-6, default 6):
Partition 6 has been deleted.
Command (m for help): d
Partition number (1-5, default 5):
Partition 5 has been deleted.
Command (m for help): d
Partition number (1-4, default 4):
Partition 4 has been deleted.
Command (m for help): d
Partition number (1-3, default 3):
Partition 3 has been deleted.
Command (m for help): n
Partition number (3-128, default 3):
First sector (1116160-976773134, default 1116160):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (1116160-976773134, default 976773134): +60
Created a new partition 3 of type 'Linux filesystem' and of size 30.5 KiB.
Command (m for help): d
Partition number (1-3, default 3):
Partition 3 has been deleted.
Command (m for help): n
Partition number (3-128, default 3):
First sector (1116160-976773134, default 1116160):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (1116160-976773134, default 976773134): +60G
Created a new partition 3 of type 'Linux filesystem' and of size 60 GiB.
Command (m for help): n
Partition number (4-128, default 4):
First sector (126945280-976773134, default 126945280):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (126945280-976773134, default 976773134): +200G
Created a new partition 4 of type 'Linux filesystem' and of size 200 GiB.
Command (m for help):
Command (m for help): n
Partition number (5-128, default 5):
First sector (546375680-976773134, default 546375680):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (546375680-976773134, default 976773134): +199G
Created a new partition 5 of type 'Linux filesystem' and of size 199 GiB.
Command (m for help): n
Partition number (6-128, default 6):
First sector (963708928-976773134, default 963708928):
Last sector, +/-sectors or +/-size{K,M,G,T,P} (963708928-976773134, default 976773134):
Created a new partition 6 of type 'Linux filesystem' and of size 6.2 GiB.
Command (m for help): p
Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 850
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M Linux RAID
/dev/sda2 1050624 1116159 65536 32M BIOS boot
/dev/sda3 1116160 126945279 125829120 60G Linux filesystem
/dev/sda4 126945280 546375679 419430400 200G Linux filesystem
/dev/sda5 546375680 963708927 417333248 199G Linux filesystem
/dev/sda6 963708928 976773134 13064207 6.2G Linux filesystem
Command (m for help): t
Partition number (1-6, default 6): 3
Partition type (type L to list all types): 29
Changed type of partition 'Linux filesystem' to 'Linux RAID'.
Command (m for help): t
Partition number (1-6, default 6): 4
Partition type (type L to list all types): 29
Changed type of partition 'Linux filesystem' to 'Linux RAID'.
Command (m for help): t
Partition number (1-6, default 6): 5
Partition type (type L to list all types): 29
Changed type of partition 'Linux filesystem' to 'Linux RAID'.
Command (m for help): t
Partition number (1-6, default 6): 6
Partition type (type L to list all types): 19
Changed type of partition 'Linux filesystem' to 'Linux swap'.
Command (m for help): p
Disk /dev/sda: 465.78 GiB, 500107862016 bytes, 976773168 sectors
Disk model: Samsung SSD 850
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 431735A7-BD0D-410F-A96C-C292628A24CA
Device Start End Sectors Size Type
/dev/sda1 2048 1050623 1048576 512M Linux RAID
/dev/sda2 1050624 1116159 65536 32M BIOS boot
/dev/sda3 1116160 126945279 125829120 60G Linux RAID
/dev/sda4 126945280 546375679 419430400 200G Linux RAID
/dev/sda5 546375680 963708927 417333248 199G Linux RAID
/dev/sda6 963708928 976773134 13064207 6.2G Linux swap
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
スワップパーティションを作成。
root@edo / # mkswap /dev/sda6 Setting up swapspace version 1, size = 6.2 GiB (6688866304 bytes) no label, UUID=cf7b9530-0b95-4771-8966-bfc637def10aRAID復旧作業の前に確認。RAIDは片系で動いている状態。
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sdb3[3]
33553336 blocks super 1.2 [2/1] [_U]
md4 : active raid1 sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sdb1[1]
524224 blocks [2/1] [_U]
unused devices: <none>
sda側のパーティションをRAIDアレイに戻していく。
root@edo /
# mdadm --add /dev/md1 /dev/sda1
mdadm: hot added /dev/sda1
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sdb3[3]
33553336 blocks super 1.2 [2/1] [_U]
md4 : active raid1 sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sda1[2] sdb1[1]
524224 blocks [2/1] [_U]
[===============>.....] recovery = 76.6% (401920/524224) finish=0.0min speed=200960K/sec
unused devices: <none>
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sdb3[3]
33553336 blocks super 1.2 [2/1] [_U]
md4 : active raid1 sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sda1[0] sdb1[1]
524224 blocks [2/2] [UU]
unused devices: <none>
root@edo /
# mdadm -D /dev/md1
/dev/md1:
Version : 0.90
Creation Time : Wed Nov 28 03:58:06 2012
Raid Level : raid1
Array Size : 524224 (511.94 MiB 536.81 MB)
Used Dev Size : 524224 (511.94 MiB 536.81 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Persistence : Superblock is persistent
Update Time : Sun Aug 2 13:50:01 2020
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Consistency Policy : resync
UUID : b5524b46:d7163145:cb201669:f728008a
Events : 0.228
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
1 8 17 1 active sync /dev/sdb1
続いてmd3の作業。
root@edo /
# mdadm --add /dev/md3 /dev/sda3
mdadm: added /dev/sda3
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sda3[2] sdb3[3]
33553336 blocks super 1.2 [2/1] [_U]
[>....................] recovery = 3.5% (1176192/33553336) finish=2.2min speed=235238K/sec
md4 : active raid1 sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sda1[0] sdb1[1]
524224 blocks [2/2] [UU]
unused devices: <none>
root@edo /
# mdadm -D /dev/md3
/dev/md3:
Version : 1.2
Creation Time : Fri Nov 30 02:19:12 2012
Raid Level : raid1
Array Size : 33553336 (32.00 GiB 34.36 GB)
Used Dev Size : 33553336 (32.00 GiB 34.36 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Sun Aug 2 13:51:16 2020
State : active, degraded, recovering
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1
Consistency Policy : resync
Rebuild Status : 10% complete
Name : edo:/ (local to host edo)
UUID : 1a4518b9:879d5121:f1651760:8b1a1f02
Events : 33168
Number Major Minor RaidDevice State
2 8 3 0 spare rebuilding /dev/sda3
3 8 19 1 active sync /dev/sdb3
同期が完了したので次へ。
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sda3[2] sdb3[3]
33553336 blocks super 1.2 [2/2] [UU]
md4 : active raid1 sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sda1[0] sdb1[1]
524224 blocks [2/2] [UU]
unused devices: <none>
続いて、md4の作業。
root@edo /
# mdadm --add /dev/md4 /dev/sda4
mdadm: added /dev/sda4
root@edo ~ Sun 02 Aug 2020 02:02:37 PM JST JST(+0900)
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sda3[2] sdb3[3]
33553336 blocks super 1.2 [2/2] [UU]
md4 : active raid1 sda4[2] sdb4[3]
125829120 blocks super 1.2 [2/1] [_U]
[>....................] recovery = 0.6% (856512/125829120) finish=17.0min speed=122358K/sec
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sda1[0] sdb1[1]
524224 blocks [2/2] [UU]
unused devices: <none>
root@edo /
# mdadm -D /dev/md4
/dev/md4:
Version : 1.2
Creation Time : Sat Aug 1 16:49:39 2015
Raid Level : raid1
Array Size : 125829120 (120.00 GiB 128.85 GB)
Used Dev Size : 125829120 (120.00 GiB 128.85 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Sun Aug 2 14:02:47 2020
State : clean, degraded, recovering
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1
Consistency Policy : bitmap
Rebuild Status : 1% complete
Name : edo:/data (local to host edo)
UUID : 8f55590b:38f15e8a:4ea20fad:c34229d8
Events : 7436
Number Major Minor RaidDevice State
2 8 4 0 spare rebuilding /dev/sda4
3 8 20 1 active sync /dev/sdb4
同期の完了を待つ。
root@edo /
# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] [linear] [multipath]
md3 : active raid1 sda3[2] sdb3[3]
62913536 blocks super 1.2 [2/2] [UU]
md4 : active raid1 sda4[2] sdb4[3]
125829120 blocks super 1.2 [2/2] [UU]
bitmap: 0/1 pages [0KB], 65536KB chunk
md1 : active raid1 sda1[0] sdb1[1]
524224 blocks [2/2] [UU]
unused devices: <none>
root@edo ~ Sun 02 Aug 2020 02:55:51 PM JST JST(+0900)
# mdadm -D /dev/md4
/dev/md4:
Version : 1.2
Creation Time : Sat Aug 1 16:49:39 2015
Raid Level : raid1
Array Size : 125829120 (120.00 GiB 128.85 GB)
Used Dev Size : 125829120 (120.00 GiB 128.85 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Sun Aug 2 14:51:59 2020
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Consistency Policy : bitmap
Name : edo:/data (local to host edo)
UUID : 8f55590b:38f15e8a:4ea20fad:c34229d8
Events : 8031
Number Major Minor RaidDevice State
2 8 4 0 active sync /dev/sda4
3 8 20 1 active sync /dev/sdb4
これで、すべてのRAID1の構成が復旧し、同期が取れた。 ディスクへの負荷も減ったので、swapも有効化。
root@edo / # swapon /dev/sda6 root@edo / # swapon NAME TYPE SIZE USED PRIO /dev/sda6 partition 6.2G 0B -3 /dev/sdb6 partition 6.2G 0B -2これで2本目の作業は完了。
続いて、RAIDのサイズ拡張を行う。
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