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I got an email form Jenny asking if she needed to power down a hard drive that has failed before swapping it, to prevent any data loss.  I’ve posted the reply:

Hi Jenny,

Basically is your server has reported a failed hard drive (orange light) or the agents have failed the drive it should be safe to remove and plug in your replacement drive. A few things to check:

• Check the drive is the same size and model type
• Check the drive is the same firmware – sometimes the agents might fail to rebuild the drive if the firmware is out of date (depends on the server manufacturer)
• Ensure you have a valid backup before carrying out any work on the server – as ever if you have any questions contact your support vendor/team.

The actions to replace failed hard drive would be:

• Check event logs for errors/agents for any issues
• Remove failed hard drive, pulling the lever that unplugs the drive slowly
• Plug in replacement hard drive and watch for lights on the drive to come online – on the HP servers, the disk light in the middle flashes as the drive rebuilds the array.
• Wait 5 mins or so and check the event logs for any erorrs, then check the agents, IBM Director, HP Insight Manager or Dell tools to see the rebuild status.

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