I’ve added too many disks and need to get some space back. How do I remove a disk?

           
  1. You can remove spare disks using the following method:
  2. Run the simulator. Delete volumes etc so that you have some spare disks.
  3. Use vol status -s to get onscreen a list of disks you can pull, e.g. “v0.3” “v0.4” etc. Use -s to see only spare disks – although you can use this technique on disks in volumes it will just cause RAID rebuilds so you don’t gain anything.
  4. From the simulator run disk simpull <disk>; for each of the disks. In the example below I only pull one disk but you can pull as many as you like. If you pull more than you wanted you can use disk simpush <disk>; to add them back to the simulator.
  5. Halt the simulator cleanly. If this is a cluster halt both nodes.
  6. Run the ./setup.sh script and answer yes to deleting the pulled disks.
  7. Restart the simulator.

E.g.: simulator> vol status –s

Spare disks

RAID Disk Device HA SHELF BAY CHAN Used (MB/blks)
--------- ------ -------------------- --------------
Spare disks are for block or zoned checksum volumes
spare v0.3 v0 0 3 FC:A 54/112128
spare v0.4 v0 0 4 FC:A 54/112128
spare v0.5 v0 0 5 FC:A 54/112128
simulator> disk simpull v0.3
simulator> Wed Apr 16 22:35:26 GMT [raid.config.spare.disk.missing:info]: Disk v0.3 Shelf 0 Bay 3 [NETAPP VD-35MB-FZ-520 0042] S/N [73554304]
Wed Apr 16 22:35:27 GMT [ses_admin:info]: initiating rescan on channel v0
Wed Apr 16 22:35:27 GMT [ses_admin:info]: initiating rescan on channel v4
(press enter to get a prompt)

simulator> halt
Wed Apr 16 22:40:34 GMT [kern.shutdown:notice]: System shut down because : “halt”.
[root@localhost /sim]# ./setup.sh –z -p
Script version X (Jul/2003)
Loading defaults
Unattended install or reconfig.
Disk adapter set to 1
Adding 2 disks
Checking for a ,disks in /sim. ,disks found.
Checking for install tarball 641.tgz. Not found.
Configuration:
<snip>
Please ensure the simulator is not running.
Deleting pulled disks.
Starting simulator to check for Linux segfault issue...
Ignore the next few lines between ------ marks
------------------------
./setup.sh: line 770: 11133 Aborted ./maytag.L >/dev/null 2>&1
------------------------
segfault issue not detected.
Complete. From the simulator directory run runsim.sh to start the simulator.
[root@localhost /sim]#