[CentOS] cyrus spool on btrfs?

Fri Sep 8 14:48:46 UTC 2017
hw <hw at gc-24.de>

m.roth at 5-cent.us wrote:
> hw wrote:
>> Mark Haney wrote:
> <snip>
>>> BTRFS isn't going to impact I/O any more significantly than, say, XFS.
>> But mdadm does, the impact is severe.  I know there are ppl saying
>> otherwise, but I´ve seen the impact myself, and I definitely don´t want
>> it on that particular server because it would likely interfere with
>> other services.
> <snip>
> I haven't really been following this thread, but if your requirements are
> that heavy, you're past the point that you need to spring some money and
> buy hardware RAID cards, like LSI, er, Avago, I mean, who's bought them
> more recently?

Heavy requirements are not required for the impact of md-RAID to be noticeable.

Hardware RAID is already in place, but the SSDs are "extra" and, as I said,
not suited to be used with hardware RAID.

It remains to be tested how the hardware RAID performs, which may be even
better than the SSDs.