Dell Storage Center SCv2000 and SCv2020 Storage System Deployment Guide

Test Storage Controller Failover

Test the Storage Center to make sure that a storage controller failover does not interrupt I/O.

CAUTION: When testing storage controller failover, do not restart a storage controller by pulling it out and reseating it. Instead, restart the storage controller using Dell Storage Manager Client.

NOTE: Before restarting a storage controller in this task, put the storage controller into maintenance mode. This mode suppresses alerts that may generate due to the storage controller restart.

Connect to a server, create a Test folder on the server, and copy at least 2 GB of data into it.
Restart the top storage controller while copying data to a test volume to verify that the storage controller failover event does not interrupt I/O.
1. Copy the Test folder to the TestVol1 volume.
2. During the copy process, restart the top storage controller (the storage controller through which TestVol1 is mapped) by selecting it from the Hardware tab and clicking Shutdown/Restart Controller .
3. Verify that the copy process continues while the storage controller restarts.
4. Wait several minutes and verify that the storage controller has finished restarting.
Restart the bottom storage controller while copying data to a test volume to verify that the storage controller failover event does not interrupt I/O.
1. Copy the Test folder to the TestVol2 volume.
2. During the copy process, restart the bottom storage controller (through which TestVol2 is mapped) by selecting it from the Hardware tab and clicking Shutdown/Restart Controller .
3. Verify that the copy process continues while the storage controller restarts.
4. Wait several minutes and verify that the storage controller has finished restarting.