Is it possible to fake a disk removal so that RAID rebuilds can be seen?

           

There are two commands you can use to cause a disk to fail and/or be removed from the system:

Command

Result
disk fail Causes a disk to be marked as failed. This is also a standard Filer/NearStore command so is documented in the normal manual set. You can use disk unfail to make the disk usable again. This functionality is also available in FilerView.
disk simpull Simulates the disk being physically removed from the system. You can use disk simpush to add the disk back to the system (see disk simpush -l on the CLI for a list of disks you can re-add) See also deleting disks

 

Here is an example for pulling a spare disk:

sim> vol status -s
Spare disks

RAID Disk Device HA SHELF BAY CHAN Used (MB/blks) Phys (MB/blks)
--------- ------ --------------- ---- -------------- --------------
Spare disks for block or zoned checksum volumes
spare v0.2 v0 0 2 FC:A 36/74752 42/87168 (not zeroed)
sim> disk simpull v0.2
Wed Dec 10 23:11:40 GMT [raid.disk.pulled:error]: Disk v0.2 Shelf 0 Bay 2 [NETAPP VD-16MB-FZ-520 0042] S/N [31002902] has been pulled from the system
Wed Dec 10 23:11:40 GMT [raid.config.spare.disk.missing:info]: Disk v0.2 Shelf 0 Bay 2 [NETAPP VD-16MB-FZ-520 0042] S/N [31002902]
sim> Wed Dec 10 23:11:41 GMT [ses_admin:info]: initiating rescan on channel v0
Wed Dec 10 23:11:41 GMT [ses_admin:info]: initiating rescan on channel v4

sim> vol status -s

Spare disks (empty)
sim>

 

To re-insert the disk we do the following:

sim> disk simpush -l


The following pulled disks are available for pushing:
v0.2:NETAPP__:VD-16MB-FZ-520__:31002902:87168
sim> disk simpush v0.2:NETAPP__:VD-16MB-FZ-520__:31002902:87168
sim> Wed Dec 10 23:12:45 GMT [ses_admin:info]: initiating rescan on channel v0
Wed Dec 10 23:12:45 GMT [ses_admin:info]: initiating rescan on channel v4
Wed Dec 10 23:12:48 GMT [raid.disk.inserted:info]: Disk v0.2 (S/N 31002902) has been inserted into the system
Wed Dec 10 23:12:48 GMT [dyn_dev_qual_admin:info]: Firmware is up-to-date on all disk drives
sim> vol status -s
Spare disks

RAID Disk Device HA SHELF BAY CHAN Used (MB/blks) Phys (MB/blks)
--------- ------ --------------- ---- -------------- --------------
Spare disks for block or zoned checksum volumes
spare v0.2 v0 0 2 FC:A 36/74752 42/87168 (not zeroed)