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storage: Ignore block devices that fail format detection

Browse Source 
https://bugzilla.redhat.com/show_bug.cgi?id=1276198

Prior to commit id '98322052' failure to saferead the block device would
cause an error to be logged and the device to be skipped while attempting
to discover/create a stable target path for a new LUN (NPIV).

This was because virStorageBackendSCSIFindLUs ignored errors from
processLU and virStorageBackendSCSINewLun.

Ignoring the failure allowed a multipath device with an "active" and
"ghost" to be present on the host with the "ghost" block device being
ignored. This patch will return a -2 to the caller indicating the desire
to ignore the block device since it cannot be used directly rather than
fail the pool startup.
This commit is contained in:
John Ferlan 2015-10-30 10:29:46 -04:00
parent b3df72c4dd
commit a523770c32
1 changed files with 4 additions and 2 deletions
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6
src/storage/storage_backend_scsi.c
View File

@ -224,8 +224,10 @@ virStorageBackendSCSINewLun(virStoragePoolObjPtr pool,
goto cleanup;
}
if (virStorageBackendUpdateVolInfo(vol, true,
VIR_STORAGE_VOL_OPEN_DEFAULT, 0) < 0)
/* Allow a volume read failure to ignore or skip this block file */
if ((retval = virStorageBackendUpdateVolInfo(vol, true,
VIR_STORAGE_VOL_OPEN_DEFAULT,
VIR_STORAGE_VOL_READ_NOERROR)) < 0)
goto cleanup;
if (!(vol->key = virStorageBackendSCSISerial(vol->target.path)))