Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux

scsi: core: Handle depopulation and restoration in progress

The default handling of the NOT READY sense key is to wait for the device
to become ready. The "wait" is assumed to be relatively short. However
there is a sub-class of NOT READY that have the "... in progress" phrase in
their additional sense code and these can take much longer. Following on
from commit 505aa4b6a883 ("scsi: sd: Defer spinning up drive while SANITIZE
is in progress") we now have element depopulation and restoration that can
take a long time. For example, over 24 hours for a 20 TB, 7200 rpm hard
disk to depopulate 1 of its 20 elements.

Add handling of ASC/ASCQ: 0x4,0x24 (depopulation in progress)
and ASC/ASCQ: 0x4,0x25 (depopulation restoration in progress)
to sd.c . The scsi_lib.c has incomplete handling of these
two messages, so complete it.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Link: https://lore.kernel.org/r/20231015050650.131145-1-dgilbert@interlog.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

authored by

Douglas Gilbert and committed by
Martin K. Petersen
2bbeb8d1 72208ebe

+5
+1
drivers/scsi/scsi_lib.c
··· 774 774 case 0x1b: /* sanitize in progress */ 775 775 case 0x1d: /* configuration in progress */ 776 776 case 0x24: /* depopulation in progress */ 777 + case 0x25: /* depopulation restore in progress */ 777 778 action = ACTION_DELAYED_RETRY; 778 779 break; 779 780 case 0x0a: /* ALUA state transition */
+4
drivers/scsi/sd.c
··· 2227 2227 break; /* unavailable */ 2228 2228 if (sshdr.asc == 4 && sshdr.ascq == 0x1b) 2229 2229 break; /* sanitize in progress */ 2230 + if (sshdr.asc == 4 && sshdr.ascq == 0x24) 2231 + break; /* depopulation in progress */ 2232 + if (sshdr.asc == 4 && sshdr.ascq == 0x25) 2233 + break; /* depopulation restoration in progress */ 2230 2234 /* 2231 2235 * Issue command to spin up drive when not ready 2232 2236 */