4.2 Shutting down the server .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 53
4.3 Disconnecting power cords   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 54
4.4 Getting access to the component   .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 55
4.4.1 Extending the server out of the rack   .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 55
4.4.2 Removing the server from the rack .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 57
4.4.3 Opening the server  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 58
4.4.3.1 Removing the housing cover   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 59
4.4.3.2 Removing the air duct .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 60
4.5 Reassembling  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 61
4.5.1 Installing the air duct   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 61
4.5.2 Closing the server .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 61
4.5.2.1 Mounting the housing cover .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 62
4.5.3 Mounting the server in the rack .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 63
4.5.3.1 Seating the server on the rack rails  .  .  .  .  .  .  .  .  .  .  .  .  .  . 63
4.5.3.2 Sliding the server into the rack   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 65
4.6 Connecting the server to the power source .  .  .  .  .  .  .  .  .  . 66
4.7 Switching on the server .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 67
5 Basic software procedures  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 69
5.1 Starting the maintenance task   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 69
5.1.1 Disabling or suspending BitLocker functionality   .  .  .  .  .  .  .  .  . 69
5.1.2 Disabling SVOM boot watchdog functionality .  .  .  .  .  .  .  .  .  .  . 70
5.1.2.1 Viewing boot watchdog settings .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 70
5.1.2.2 Configuring boot watchdog settings .  .  .  .  .  .  .  .  .  .  .  .  .  . 71
5.1.3 Removing backup and optical disk media   .  .  .  .  .  .  .  .  .  .  .  . 73
5.1.4 Verifying and configuring the backup software solution .  .  .  .  .  . 73
5.1.5 Note on server maintenance in a Multipath I/O environment .  .  . 74
5.1.6 Switching on the ID indicator  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 76
5.2 Completing the maintenance task  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 77
5.2.1 Updating or recovering the system board BIOS and iRMC .  .  .  . 77
5.2.1.1 Updating or recovering the system board BIOS .  .  .  .  .  .  .  . 77
5.2.1.2 Updating or recovering the iRMC  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 78
5.2.2 Verifying system information backup / restore   .  .  .  .  .  .  .  .  .  . 79
5.2.3 Updating RAID controller firmware  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 81
5.2.4 Enabling Option ROM scan .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 82
5.2.5 Verifying and configuring the backup software solution .  .  .  .  .  . 83
5.2.6 Resetting the boot retry counter   .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 84