Compaq Infortrend manual Automatic Rebuild and Manual Rebuild

1.6Rebuild

Automatic Rebuild and Manual Rebuild

1. Automatic Rebuild

Figure 1 - 13 Automatic Rebuild

One member drive fails in logical drive

Waiting for spare drive to be added or manual rebuild

Any	Yes	Rebuild using the
local spare drive
		local spare drive
assigned to logical
drive?
No
Any	Yes
global spare drive		Rebuild using the
assigned to logical		global spare drive
drive?

No

“Periodic

No Auto-Detect Failure Drive Swap Check Time”

enabled?

Yes
Has the	Yes	Rebuild using the
failed drive been
		swapped drive
swapped?

No

Keep detecting if drive has been swapped or spare drive has been added

Rebuild with Spare: 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.

Failed Drive Swap Detect: 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 Once the failed drive has been replaced by a healthy drive, the rebuild will begin immediately.

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