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Replace btrfs disk of a raid
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| btrfs device stats /mnt/btrfs | |
| poweroff | |
| dmesg | |
| btrfs device scan | |
| btrfs filesystem show | |
| warning, device 5 is missing | |
| Label: 'btrfs' uuid: 68706ead-a626-4209-b3d0-1187b835f803 | |
| Total devices 4 FS bytes used 2.80TiB | |
| devid 2 size 2.73TiB used 1.40TiB path /dev/sdc | |
| devid 3 size 2.73TiB used 1.40TiB path /dev/sdb | |
| devid 4 size 2.73TiB used 1.40TiB path /dev/sda | |
| *** Some devices missing | |
| lsblk | |
| NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT | |
| sda 8:0 0 2.7T 0 disk | |
| sdb 8:16 0 2.7T 0 disk | |
| sdc 8:32 0 2.7T 0 disk | |
| sdd 8:48 0 2.7T 0 disk | |
| sde 8:64 1 956M 0 disk | |
| ├─sde1 8:65 1 384M 0 part /boot | |
| └─sde2 8:66 1 512M 0 part / | |
| zram0 253:0 0 1G 0 disk [SWAP] | |
| lsscsi -v | |
| mount -t btrfs -v -o degraded,subvolid=5,noatime,nodiratime,noacl,nossd,device=/dev/sda,device=/dev/sdb,device=/dev/sdc /dev/sda /mnt/btrfs | |
| btrfs replace start 5 /dev/sdd /mnt/btrfs | |
| btrfs replace start -f 5 /dev/sdd /mnt/btrfs | |
| btrfs replace status /mnt/btrfs | |
| umount /mnt/btrfs | |
| mount -t btrfs -v -o subvolid=5,noatime,nodiratime,noacl,nossd,device=/dev/sda,device=/dev/sdb,device=/dev/sdc,device=/dev/sdd /dev/sda /mnt/btrfs | |
| ls /mnt/btrfs | |
| btrfs fi resize 5:max /mnt/btrfs | |
| btrfs scrub start /mnt/btrfs | |
| btrfs scrub status /mnt/btrfs | |
| btrfs balance start /mnt/btrfs | |
| btrfs balance status -v /mnt/btrfs | |
| smartctl /dev/sdd -s on | |
| smartctl /dev/sdd -a | |
| smartctl /dev/sdd -t short |
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| service subversion stop | |
| service rsyncd stop | |
| service mpd stop | |
| service samba4 stop | |
| service transmission stop | |
| service minidlna stop | |
| umount /mnt/btrfs | |
| umount /mnt/data | |
| umount /srv/lxc | |
| df -h | |
| Filesystem Size Used Available Use% Mounted on | |
| /dev/root 495.9M 423.4M 62.3M 87% / | |
| devtmpfs 512.0K 0 512.0K 0% /dev | |
| tmpfs 1.9G 5.9M 1.9G 0% /tmp | |
| /dev/sde1 378.0M 3.6M 366.6M 1% /boot | |
| /dev/sde1 378.0M 3.6M 366.6M 1% /boot | |
| tmpfs 512.0K 0 512.0K 0% /dev | |
| lsblk | |
| NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT | |
| sda 8:0 0 2.7T 0 disk | |
| sdb 8:16 0 2.7T 0 disk | |
| sdc 8:32 0 2.7T 0 disk | |
| sdd 8:48 0 2.7T 0 disk | |
| sde 8:64 1 956M 0 disk | |
| ├─sde1 8:65 1 384M 0 part /boot | |
| └─sde2 8:66 1 512M 0 part / | |
| zram0 253:0 0 1G 0 disk [SWAP] | |
| find /sys/bus/scsi/devices/host*/target*|grep state | |
| /sys/bus/scsi/devices/host0/target0:0:0/0:0:0:0/state | |
| /sys/bus/scsi/devices/host1/target1:0:0/1:0:0:0/state | |
| /sys/bus/scsi/devices/host2/target2:0:0/2:0:0:0/state | |
| /sys/bus/scsi/devices/host3/target3:0:0/3:0:0:0/state | |
| /sys/bus/scsi/devices/host6/target6:0:0/6:0:0:0/state | |
| lsscsi -v | |
| [1:0:0:0] disk ATA ST3000VN007-2E41 SC60 | |
| [2:0:0:0] disk ATA ST3000DM001-1ER1 CC25 | |
| [6:0:0:0] disk SMI USB DISK 0100 | |
| [3:0:0:0] disk ATA ST3000DM001-1ER1 CC25 | |
| [0:0:0:0] disk ATA ST3000VN007-2AH1 SC60 | |
| cat /sys/bus/scsi/devices/host3/target3:0:0/3:0:0:0/state | |
| running | |
| echo offline > /sys/bus/scsi/devices/host3/target3:0:0/3:0:0:0/state | |
| echo 1 > /sys/class/scsi_device/3:0:0:0/device/delete | |
| lsscsi -v | |
| [1:0:0:0] disk ATA ST3000VN007-2E41 SC60 | |
| [2:0:0:0] disk ATA ST3000DM001-1ER1 CC25 | |
| [6:0:0:0] disk SMI USB DISK 0100 | |
| [0:0:0:0] disk ATA ST3000VN007-2AH1 SC60 | |
| echo "- - -" > /sys/class/scsi_host/host3/scan | |
| echo "0 0 0" > /sys/class/scsi_host/host3/scan | |
| echo 1 > /sys/class/scsi_device/3:0:0:0/device/rescan | |
| echo running > /sys/bus/scsi/devices/host3/target3:0:0/3:0:0:0/state | |
| cat /proc/scsi/scsi | |
| Attached devices: | |
| Host: scsi0 Channel: 00 Id: 00 Lun: 00 | |
| Vendor: ATA Model: ST3000VN007-2AH1 Rev: SC60 | |
| Type: Direct-Access ANSI SCSI revision: 05 | |
| Host: scsi1 Channel: 00 Id: 00 Lun: 00 | |
| Vendor: ATA Model: ST3000VN007-2E41 Rev: SC60 | |
| Type: Direct-Access ANSI SCSI revision: 05 | |
| Host: scsi2 Channel: 00 Id: 00 Lun: 00 | |
| Vendor: ATA Model: ST3000DM001-1ER1 Rev: CC25 | |
| Type: Direct-Access ANSI SCSI revision: 05 | |
| Host: scsi3 Channel: 00 Id: 00 Lun: 00 | |
| Vendor: ATA Model: ST3000DM001-1ER1 Rev: CC25 | |
| Type: Direct-Access ANSI SCSI revision: 05 | |
| Host: scsi6 Channel: 00 Id: 00 Lun: 00 | |
| Vendor: SMI Model: USB DISK Rev: 0100 | |
| Type: Direct-Access ANSI SCSI revision: 00 | |
| echo "- - -" > /sys/class/scsi_host/host<H>/scan | |
| echo “<C> <T> <L>” > /sys/class/scsi_host/host<H>/scan | |
| H == hostadapter id (first one being 0) | |
| C == SCSI channel on hostadapter (first one being 0) | |
| T == ID | |
| L == LUN (first one being 0) | |
| echo offline > /sys/block/sdd/device/state | |
| echo 1 > /sys/block/sdd/device/delete | |
| echo 1 > /sys/block/sdd/device/rescan | |
| echo running > /sys/block/sdd/device/state | |
mount -t btrfs -v -o degraded,subvolid=5,noatime,nodiratime,noacl,nossd,device=/dev/sda,device=/dev/sdb,device=/dev/sdd /dev/sda /mnt/btrfs
screen
para disco novo
btrfs replace start 2 /dev/sdc /mnt/btrfs
para disco já usado em btrfs
btrfs replace start -f 2 /dev/sdc /mnt/btrfs
acompanhar processo
btrfs replace status /mnt/btrfs
umount /mnt/btrfs
mount -t btrfs -v -o subvolid=5,noatime,nodiratime,noacl,nossd,device=/dev/sda,device=/dev/sdb,device=/dev/sdc,device=/dev/sdd /dev/sda /mnt/btrfs
ls /mnt/btrfs
btrfs fi resize 2:max /mnt/btrfs
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btrfs filesystem show
Label: 'btrfs' uuid: 68706ead-a626-4209-b3d0-1187b835f803
Total devices 4 FS bytes used 5.22TiB
devid 2 size 2.73TiB used 2.64TiB path /dev/sdc
devid 3 size 2.73TiB used 2.64TiB path /dev/sdb
devid 4 size 2.73TiB used 2.64TiB path /dev/sda
devid 5 size 2.73TiB used 2.64TiB path /dev/sdd