Owners Manual

CAUTION: Do not operate the storage controller without the cover.
Figure 15. Remove the Storage Controller Cover
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Storage controller cover 2 Storage controller latch touch point
3 Storage controller
Battery Backup Unit
Write cache is mirrored between the two storage controllers. If a power failure occurs, the battery backup unit provides power to the
storage controller so that the write cache can be saved to an SSD within the storage controller.
Replace the battery backup unit if it begins to fail.
Remove the Battery Backup Unit
Use this procedure to remove the battery backup unit.
Prerequisite
• Use Dell Storage Manager to send SupportAssist information to technical support.
• Use Dell Storage Manager to edit the Storage Center settings and set the operation mode of the Storage Center to Maintenance
mode.
Steps
1 Shut down the storage controller using Dell Storage Manager.
2 Make sure that all cables plugged into the storage controller are labeled.
3 Disconnect the cables from the storage controller that was shut down.
4 Remove the storage controller from the chassis
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Replacing Storage System Components