A rebuild does not start after replacing a defunct drive - IBM ServeRAID
RETAIN tip: H192840
There are several symptoms related to the same issue:
This tip is not hardware specific.
The system is configured with one or more of the following IBM Options:
This tip is not software specific.
The proper procedure when adding any previously used good or absolutely new drive to an array, either as a replacement drive or to expand an array, is to first initialize the drive.
Reusing good hard disk drives within a RAID configuration requires the drive to be initialized to remove existing configuration information. Existing configuration information may cause the ServeRAID controller to behave differently than expected and in some rare cases, can result in data loss.
Hard disk drives can be initialized by using the Array Configuration Utility (ACU), the IBM Support CD, the ServeRAID Manager installable application, or by using the ARCCONF TASK sub-command within the CLI.
Offline Initialization Method:
The first and second digits is the Device ID. The third and fourth digits is the Enclosure ID. The fifth and sixth digits is the slot location which should match the label on the front bezel of the server or external chassis.
Important Note: Initializing the wrong disk, in an existing array, will cause data loss if the array is already critical, or will cause an optimal array to become critical. Ensure to properly correlate the physical slot location to the software presentation.
The referenced file will be available from the Servers - ServeRAID Software Matrix.
The ServeRAID-8 series controllers will always try to use the values stored in the configuration data on newly inserted hard disk drives to determine how the hard drive will be used within the current working configuration. Depending on the values and how the drive was previously used, the controller may ignore all values and behave as expected by automatically rebuilding, or in other situations it will try to use those values resulting in the unexpected behavior as described in the symptoms above.
In most cases, users expect the default behavior to be what occurs when a new unused drive is inserted. The process of initializing drives will cause the ServeRAID controller to write meta-data correctly to the previously used or absolutely new hard disk drive.
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Document id: MIGR-5074510