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Docs for increasing disk size in a RAID 1 array

(@ianpiper)
New Member Customer

Hi folks,

I have been using SoftRAID Lite for a few years on my main file server. I'm currently on v5.5.6. I don't have any problems with the software or my RAID 1 array, but I am running short on disk space and want to act before it becomes a problem. My array is one volume with 3 2 TB mirrored disks and I want to upgrade it to 3 6TB disks. These are in hot-swappable disk trays on a Mac Pro.

My first thought was to remove each of the 2 TB secondary disks from the array and then replace each with a 6 TB disk, waiting for it to copy the data each time. Once the secondaries are populated I would make one of them into the primary disk, and remove the former primary, replacing it with the final new 6 TB disk.

So I have two questions:

1. Is this the right strategy? If not, can you point me to some docs that might inform me?
2. AIUI, this will result in a RAID 1 array that is still 2 TB, even though my disks a physically 6 TB. I'm sure there is a process by which I can expand the capacity to use the real disk space, but I'm struggling to find an authoritative answer.

I have read the documentation and searched here and in the FAQ and can't find the information I'm looking for, so I would greatly appreciate any help the forum can provide.

Looking forward to solving my dilemma. Thanks in advance.

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Topic starter Posted : 13/05/2020 12:17 pm
(@softraid-support)
Member Admin

Your process is OK. We do have a "resize volume" command in SoftRAID, after all disks in a volume are replaced.

If you need to keep the volumes on line, this can accomplish that and keep the same "volume ID" for any scripts, etc.

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Posted : 13/05/2020 12:42 pm
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