If I/O errors are intermittent rather than persistent, Veritas Volume Manager sets the failing
flag on a disk, rather than detaching the disk. Such errors can occur due to the temporary removal of a cable, controller faults, a partially faulty LUN in a disk array, or a disk with a few bad sectors or tracks.
If the hardware fault is not with the disk itself (for example, it is caused by problems with the controller or the cable path to the disk), you can use the vxedit
command to unset the failing
flag after correcting the source of the
I/O error.
failing
flag if the reason for the I/O errors is unknown. If the disk hardware truly is failing, and the flag is cleared, there is a risk of data loss.To clear the failing flag on a disk
vxdisk
list
command to find out which disks are failing:
sdp auto:sliced mydg01 mydg online
sdq auto:sliced mydg02 mydg online failing
vxedit
set
command to clear the flag for each disk that is marked as failing
(in this example, mydg02
):
vxdisk
list
command to verify that the failing
flag has been cleared:
sdp auto:sliced mydg01 mydg online
sdq auto:sliced mydg02 mydg online