Am 21.05.2012 20:13, schrieb Gregory Farnum: > On Sat, May 19, 2012 at 1:37 AM, Stefan Priebe <s.priebe@xxxxxxxxxxxx> wrote: >> So would you recommand a fast (more ghz) Core i3 instead of a single xeon >> for this system? (price per ghz is better). > > If that's all the MDS is doing there, probably? (It would also depend > on cache sizes and things; I don't have a good sense for how that > impacts the MDS' performance.) As i'm only using KVM / rbd i don't have any MDS. > Well, RAID1 isn't going to make it any faster than just the single > SSD, is why I pointed that out. > > I wouldn't recommend using a ramdisk for the journal — that will > guarantee local data loss in the event the server doesn't shut down > properly, and if it happens to several servers at once you get a good > chance of losing client writes. Sure but it's the same WHEN NOT using a Raid 1 for the journal isn't it? Stefan -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
