Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm trying to shrink a Linux software RAID10 array. I have already shrunk the FS volume. The md volume is 64kb chunks w/ "far" mode. Is it possible to safely shrink the underlying RAID array in someway without having to wipe one drive, copy the data and re-sync?

share|improve this question
Can you provide a bit more information please; OS, disk controller, disks, disk layout, partition/volume types etc. – Chopper3 Nov 4 '09 at 8:37
up vote 1 down vote accepted

Partitions have nothing to do with raid array settings. If you can shrink the partition using the tools your OS provides, then you might be able to also change the size of the VD, depending on the raid controller you have

share|improve this answer
Sorry, you got one step ahead of me. I didn't mean the physical partition, but the MD array. I updated the question to clarify. – cmcginty Nov 4 '09 at 10:00
ah, I see now. no, afaik there's no safe way, all you can do is backup>testBackup>rebuild>restore – dyasny Nov 4 '09 at 10:29

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.