Re: xfs_force_shutdown after Raid crash

[Eric Sandeen <sandeen@xxxxxxxxxxx>]

Michael Monnerie wrote:
> On Samstag 31 Januar 2009 Christoph Hellwig wrote:
>> This looks like you were running with a write back cache enabled on
>> the controller / disks but without barriers.
> 
> I've read that this is dangerous. How can I tell if I suffer the same? I 
> use an Areca 1680 SAS RAID Controller with 2GB Cache, so there could be 
> a lot of writes in it.
> 
> mfg zmi

you'd need to read the docs for your controller, to find out how to tell
if it has a writeback cache enabled, and whether it is batter-backed or not.

-Eric