Meaning of disk status of EMC DataDomain

understand EMC DataDomain The meaning of disk status is very helpful for diagnosing and analyzing disk faults . Here is DD Various states of the disk .

Use command disk show state You can list all disks and state state . The following figure is an example ：

You can see that the status of some disks is s, Some are o, Now let's explain all DD Meaning of disk status .

.                                In Use disks    It indicates that the disk is in use

s                               Spare disks    That is the spare Hot spare disk

R                              Spare disks (Reconstruction)    It indicates that the hot standby disk is being rebuilt

U                              Unknown disks      Unknown disk

F                              Failed    Faulty disk

A                              Absent      No disk is found in this slot

C                              Copy Recovery in progress (This disk is failing)  Copying data in progress

E                              Disk in the queue has an error (Copy Recovery queue)

D                             Disk is Disabled (disk sArchive auto power management

P                              Disk is powered off (Archive auto power management)

K                             Disk in known state

O                             Disk is in foreign state

Y                              Disk is a system disk

According to the status of these disks , We can take different measures accordingly action To deal with the problem .