NetApp ディスクの手動 fail について
NetApp では disk を明示的に fail する事が可能です。システム上は問題ないと判断されている disk において、何らかの不具合が懸念される場合等に有効です。本例では、仮想ディスク［v5.18］を fail してみます。
ディスクの手動 fail
仮想ディスク［v5.18］が aggr0 で使用している事を確認します。
node1> sysconfig -r
Aggregate aggr0 (online, raid_dp) (block checksums)
Plex /aggr0/plex0 (online, normal, active)
RAID group /aggr0/plex0/rg0 (normal, block checksums)
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity v5.16 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
parity v5.17 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
data v5.18 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
Spare disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block checksum
spare v5.19 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.20 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.21 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.22 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.24 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.25 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.26 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.27 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.28 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.29 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.32 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448"disk fail" コマンドにより［v5.18］を手動 fail します。
node1> disk fail v5.18
*** You are about to prefail the following file system disk, ***
*** which will eventually result in it being failed ***
Disk /aggr0/plex0/rg0/v5.18
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
data v5.18 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
***
Really prefail disk v5.18? y
disk fail: The following disk was prefailed: v5.18
Disk v5.18 has been prefailed. Its contents will be copied to a
replacement disk, and the prefailed disk will be failed out.コマンドを実行すると［v5.18］のデータが、spare disk［v5.19］にコピーされます。
node1> sysconfig -r
Aggregate aggr0 (online, raid_dp) (block checksums)
Plex /aggr0/plex0 (online, normal, active)
RAID group /aggr0/plex0/rg0 (normal, block checksums)
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity v5.16 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
parity v5.17 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
data v5.18 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448 (prefail, copy in progress)
-> copy v5.19 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448 (copy 1% completed)
Spare disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block checksum
spare v5.20 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.21 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.22 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.24 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.25 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.26 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.27 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.28 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.29 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.32 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448コピーが完了すると［v5.19］が aggr0 に参加［v5.18］は Broken disk として認識されます。
node1> sysconfig -r
Aggregate aggr0 (online, raid_dp) (block checksums)
Plex /aggr0/plex0 (online, normal, active)
RAID group /aggr0/plex0/rg0 (normal, block checksums)
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity v5.16 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
parity v5.17 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
data v5.19 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
Spare disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block checksum
spare v5.20 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.21 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.22 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.24 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.25 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.26 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.27 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.28 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.29 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.32 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
Broken disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
admin failed v5.18 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
ディスクの unfaill
advance mode へ移行します。
node1> priv set advanced Warning: These advanced commands are potentially dangerous; use them only when directed to do so by NetApp personnel.
unfail は "disk unfail" コマンドにより行います。
node2*> disk unfail v5.18 disk unfail: unfailing disk v5.18...
non-advanced mode へ復帰します。
node2*> priv set
［v5.18］が spare ディスクとして認識されます。
node1> sysconfig -r
Aggregate aggr0 (online, raid_dp) (block checksums)
Plex /aggr0/plex0 (online, normal, active)
RAID group /aggr0/plex0/rg0 (normal, block checksums)
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity v5.16 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
parity v5.17 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
data v5.19 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
Spare disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block checksum
spare v5.18 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448 (not zeroed)
spare v5.20 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.21 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.22 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.24 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.25 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.26 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.27 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.28 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.29 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.32 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448必要に応じてディスクの zeroing を実行します。
node1> disk zero spares
node1> sysconfig -r
Aggregate aggr0 (online, raid_dp) (block checksums)
Plex /aggr0/plex0 (online, normal, active)
RAID group /aggr0/plex0/rg0 (normal, block checksums)
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
dparity v5.16 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
parity v5.17 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
data v5.19 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
Spare disks
RAID Disk Device HA SHELF BAY CHAN Pool Type RPM Used (MB/blks) Phys (MB/blks)
--------- ------ ------------- ---- ---- ---- ----- -------------- --------------
Spare disks for block checksum
spare v5.18 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448 (zeroing, 3% done)
spare v5.20 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.21 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.22 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.24 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.25 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.26 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.27 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.28 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.29 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
spare v5.32 v5 ? ? FC:B - FCAL 15000 1020/2089984 1027/2104448
