Removed ESM Canister

What Caused the Problem?

An ESM canister is not present in a drive enclosure. The canister may be missing or not properly seated. The Recovery Guru Details area provides specific information you will need as you follow the recovery steps.

Caution
Electrostatic discharge can damage sensitive components. Use a grounding wrist strap or other anti-static precautions before removing or handling components.

Important Notes

As long as one optimal ESM canister is present in the drive enclosure, the enclosure will remain operational. Although the drive enclosure is still operational, you should correct this failure as soon as possible. If the other ESM canister or its communication path fails, all I/O to that drive enclosure will fail.

Recovery Steps

1

Use the location information in the Recovery Guru Details area to identify the affected drive enclosure and the location of the removed ESM.

Check the affected drive enclosure for the presence of an ESM canister.

If...

Then...

An ESM canister is present

Without removing the cables, remove the ESM canister.

Caution
Make sure you correctly identify the canister listed as removed. Removing the remaining optimal canister while I/O is in progress can cause data loss!

Check the female side of the canister connector for dirty or plugged pin slots.

Check the male side of the canister connector for damaged pins.

Clean any dirty or plugged pin slots and repair any damaged pins.

Reinsert the ESM canister and wait 40 seconds for the storage subsystem to detect and register the ESM canister.

Go to Step 2.

The ESM canister has been removed

Reinsert the Removed ESM canister. If the removed ESM canister is not available, insert a replacement ESM canister. If the affected drive enclosure uses ESM canisters with a pair of rotary enclosure number switches, verify that they are set to the same values as enclosure number switches on the existing ESM canister.

Wait 40 seconds for the storage subsystem to detect and register the ESM canister.

Go to Step 2.

2

Select Recheck to rerun the Recovery Guru to ensure the failure has been fixed.