HP Modular Smart Array 500 System HP StorageWorks Modular Smart Array 500 Controller

Removal and Replacement Procedures

HP StorageWorks Modular Smart Array 500 Controller

When the MSA500 controller in a single-controller system fails, HP recommends that you migrate the cache module to a new controller. Battery-backed cached data in a failed controller can remain intact for up to 3 days with 256-MB modules or up to 4 days with 128-MB modules.

CAUTION: Failure to migrate the cache to a new controller and flush the data can result in loss of the data that is written in the cache but was unable to be written to the hard drives before controller failure.

To remove the component:

2

1

To restore the data:

1.Remove the cache modules from the failed controller. Refer to “Battery-Backed Cache Module” in this chapter.

2.Install the cache modules in the new controller.

3.Install the new controller and allow the cache to write the stored data.

To replace the controller:

1.Slide the controller into the bay until it locks into place.

2.Close the lever.

3.Verify that the controller is seated properly by observing the controller LEDs. When seated properly, the LEDs illuminate when the system is powered.

HP StorageWorks Modular Smart Array 500 System Maintenance and Service Guide 2-9