Compaq Infortrend Manuale Utente

  When a member drive in a logical drive

fails, the controller will first examine whether there is a Local Spare
Drive assigned to this logical drive.  If yes, rebuild is automatically
started.

If there is no Local Spare available, the controller will search for a
Global Spare.  If there is a Global Spare, rebuild automatically
begins using the Global Spare.

 If neither Local Spare Drive nor

Global Spare Drive is available, and the "Periodic Auto-Detect
Failure Drive Swap Check Time" is "Disabled," the controller will not
attempt to rebuild unless the user applies a forced-manual rebuild.

When the "Periodic Auto-Detect Failure Drive Swap Check Time" is
"Enabled" (i.e., a check time interval has been selected), the
controller will detect whether a faulty drive has been swapped (by
checking the failed drive's channel/ID).  Once the failed drive has
been replaced by a healthy drive, the rebuild will begin
immediately.

One member drive 

fails in logical drive

Any 

local spare drive

assigned to logical

drive?

Any 

global spare drive

assigned to logical

drive?

“Periodic 

Auto-Detect Failure

Drive Swap Check Time”

enabled?

Has the

failed drive been

swapped?

Waiting for spare

drive to be added
or manual rebuild

Rebuild using the

swapped drive

Rebuild using the

local spare drive

Rebuild using the

global spare drive

Keep detecting if drive
 has been swapped or

spare drive has been

added

No

Yes

No

No

Yes

No

Yes

Yes