Removing an Expansion Enclosure from a ChainCurrently in ServiceTo remove an expansion enclosure, disconnect the expansion enclosure from one side of the chain at atime.About this taskDuring this process, one side of the chain is disconnected, and the Storage Center directs all IO to theother side of the chain, which remains connected.CAUTION: Make sure that your data is backed up before removing an expansion enclosure.Steps1. Connect to the Storage Center using the Dell Storage Client.2. Use the Dell Storage Client to release the disks in the expansion enclosure.3. Select the expansion enclosure to remove and click Remove Enclosure. The Remove Enclosurewizard starts.4. Confirm the details of your current install and click Next to validate the cabling.5. Locate the expansion enclosure in the rack. Click Next.6. Disconnect the A-side chain.a. Disconnect the A-side cables that connect the expansion enclosure to the storage system. ClickNext.b. Reconnect the A-side cables to exclude the expansion enclosure from the chain. Click Next tovalidate the cabling.7. Disconnect the B-side chain.a. Disconnect the B-side cables that connect the expansion enclosure to the storage system. ClickNext.b. Reconnect the B-side cables to exclude the expansion enclosure from the chain. Click Next tovalidate the cabling.8. Click Finish.Related TasksRelease the Disks in the Expansion EnclosureDisconnect the SC100/SC120 Expansion Enclosure from the A-Side of the ChainDisconnect the SC100/SC120 Expansion Enclosure from the B-Side of the ChainRelease the Disks in the Expansion EnclosureUse the Dell Storage Client to release the disks in an expansion enclosure before removing the expansionenclosure.About this taskReleasing disks causes all of the data to move off the disks.NOTE: Do not release disks unless the remaining disks have enough free space for the restripeddata.Steps1. Connect to the Storage Center using the Dell Storage Client.2. Click the Hardware tab.3. In the Hardware tab navigation pane, expand the enclosure to remove.Adding or Removing an Expansion Enclosure 103
