Ubuntu Software RAID 0 on AWS Does Not Survive Reboot

Posted by Eric J. on Server Fault See other posts from Server Fault or by Eric J.
Published on 2010-05-14T18:39:22Z Indexed on 2010/05/14 18:44 UTC
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Filed under:

amazon-ec2

|

amazon-ebs

|

raid

I'm experimenting with creating a software RAID 0 device from 4 EBS volumes on Ubuntu 9.10 running at Amazon AWS following this guide:

http://alestic.com/2009/06/ec2-ebs-raid

The device appears (and according to SysBench is 3.5x faster than a regular attached EBS volume).

Problem is, when I reboot the instance, all files on the RAID device are gone. The device is available and mounted where expected, but contains no files. I am able to write new files to it, which survive until the next reboot.

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