ML350 gen9 - adding drives to RAID5

[mxpxillini35]

Ok, so I recently added three 5TB drives to my RAID5 setup (going from 6 drives to 9 drives). My HP Smart Storage Administrator is throwing an error code that one of the new drives failed. I noticed that there remains an active task "Logical Drive 2 is transforming". I'm assuming that this task is adding the new drives into the array.

So what happens now? I've removed the bad drive, but the task is still carrying on.

I'm assuming that I'm going to have to replace that drive, but I'm unclear on what kind of a process is happening at the moment. Is the system adding only 2 drives (making a total of 8 and not 9) and using 1 as a backup? Or is it "adding 3 drives" and effectively making the bad drive the "failed drive" in the RAID5?

Also, seperate question...the "transforming" process is moving really slowly. Like 10% in ~12 hours. Is that normal?

I've never added drives to an existing array before, so I'm more curious. All my data is still there, I'm not terribly worried. I just want to make sure I'm taking proper precautionary steps to clear the critical status messages that have popped up (pertaining to the failed/bad drive). I'm also curious as to the process that the computer is going through when adding drives to the array.

[support_s]

System recommended content:

1. HPE ProLiant ML350 Gen9 Server - Product Information Reference | Standard models

2. HPE ProLiant ML350 Gen9 Server - Product Information Reference | Product Features

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[TVVJ]

Hello,

When an array transformation activity is taking place, it indicates that the additional drives are now made part of the RAID array to which they are being made part of.

If any drive is found defective it is then notified so. This enables you to replace it. The defective drive not part of the array but when a replacement is installed and found good will become part of the array, if the drive in that slot was so made part of the original array or was made so by the process of expanding the array.

Hope this helps!

Regards,

[rabindra11sharm]

Dear  mxpxillini35

RAID expansion is a slow and time taking proccess. If server is in production environment, it will take more time to complete, as well as production might be slower during the proccess,  Please check the document  RAID5 Expension .

Thanks & Regards..

Rabindra

[BPSingh]

In addition to the suggestions mentioned above, I recommend taking a data backup before making any changes to the storage subsystem, as a best practice.

[support_s]

Hello,

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