journal on an ssd
sandeen at redhat.com
Wed Sep 10 15:27:25 UTC 2008
Tobias Oetiker wrote:
> What happens if the disk hosting an external journal of a filesytem
> running with data=journal goes bust.
> The Backstory ...
> I have been batteling with filesystem performance for some time
> now. Our setup is a HW Raid(6) with LVM on top and ext3 filesytems.
> Recently we added an SSD to our setup and have moved all the journals
> to this ssd. This has dramatically improved performance and
> especially reduced the interdependence between performance of
> different partitions hosted on the same RAID.
How does this compare to putting journals on a separate non-ssd device?
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