ESM Hardware Type Mismatch

What Caused the Problem?

A drive enclosure in the storage subsystem contains ESM canisters with different hardware (such as a mixture of switched and non-switched ESMs or a SATA ESM and a Fibre Channel ESM). The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

 Caution: Possible loss of data accessibility. Do not remove a component when either (1) the Service action (removal) allowed (SAA) field in the Details area of this recovery procedure is NO (), or (2) the SAA LED on the affected component is OFF (note that some products do not have SAA LEDs). Removing a component while its SAA LED is OFF may result in temporary loss of access to your data. Refer to the following Important Notes for more detail.

 Caution: Electrostatic discharge can damage sensitive components. Always use proper antistatic protection when handling components. Touching components without using a proper ground may damage the equipment.

Important Notes

Recovery Steps

1 The ESM firmware and hardware information is available in the Storage Subsystem Profile.
a Refer to the Recovery Guru Details area to see which drive enclosure is affected by the mismatch.
b Access the Storage Subsystem Profile and then select the Enclosure information.
c

Scroll down until you find the following heading:

Drive Enclosure x Overall Component Information

where x is the drive enclosure number listed in the Recovery Guru Details area.

d Under each ESM Canister subheading, locate and record the following information for each ESM (left and right):

Firmware version:

Product ID:

Part number:

2
If... Then...
You do NOT have a replacement ESM canister or are unable to determine if you have a replacement ESM canister with the same firmware version and hardware type as one of the canisters in the affected enclosure Contact your technical support representative.
You have a replacement ESM canister with the same firmware version and hardware type as the canister that will remain in the affected enclosure

Read the following notes and then perform the procedure:

  • Make sure you have determined which ESM canister should remain in the drive enclosure.
  • Make sure that the replacement ESM canister is the same as the ESM that will remain in the drive enclosure (hardware type and firmware version).
  • Wait approximately 40 seconds before inserting a replacement ESM canister.
  • Wait 10 seconds for the storage subsystem to detect and register the replacement ESM canister.

Remove one of the ESM canisters in the affected enclosure and insert a replacement ESM. Then, go to step 3.

3 Click the Recheck button to rerun the Recovery Guru. The failure should no longer appear in the Summary area. If the failure appears again, contact your technical support representative.