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[Xen-users] repeated DomU volume corruption

  • To: xen-users <xen-users@xxxxxxxxxxxxx>
  • From: Robert Rust <rjrbytes@xxxxxxxxx>
  • Date: Sun, 23 Nov 2014 21:04:14 -0600
  • Delivery-date: Mon, 24 Nov 2014 03:05:49 +0000
  • List-id: Xen user discussion <xen-users.lists.xen.org>

I'm having headaches with DomU volume corruption. It isn't tied to any particular DomU, and I have never had it occur in the Dom0 (which is on the same disk) nor did it happen in the nearly 1 year that I was running on bare metal using the same drive. Last fall I even replaced the drive to try and resolve the problem, since it has plagued me every time I've tried Xen. If it matters, the most recent error (this morning) was as follows (and it occurred in 2 of my DomUs) :
EXT4-fs error (device xvda2): ext4_mb_generate_buddy:756: group 66, 7224 clusters in bitmap, 7216 in gd; block bitmap corrupt.

I've also contemplated the idea of switching to using ZFS for my DomUs, but I've not dug into how that might work other than I'd likely run my Dom0 on ext4.

current setup:
OS: Ubuntu server 14.04.1 64-bit
kernel:Â3.14.4-031404-generic  (for ATI radeon driver support I was experimenting with)
Xen:Â4.4.0-0ubuntu5.2 Â (standard Xen package from Ubuntu repos)
drive: 2TB WD Caviar Black
motherboard: Gigabyte GA-Z77-DS3H



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