Ok - newbie question :) I've seen the term "slog" bandied about hither and yon - but still haven't groked its meaning .
So what's a "slog" ? :) Sent from my iPad > On Mar 7, 2014, at 12:01 AM, Nicholas Lee <[email protected]> wrote: > > > >> On Fri, Mar 7, 2014 at 10:19 AM, Keith Wesolowski >> <[email protected]> wrote: >> On Thu, Mar 06, 2014 at 08:42:39PM +0000, Alex Adriaanse wrote: >> >> > Thanks, your email is incredibly helpful. As far as the raidz2 vdevs are >> > concerned, I keep reading on the Internet that for raidz2 you should have >> > an even number of disks. Is this valid advice? If so, what’s the logic >> > behind this (or if it’s not valid, why do people keep making this >> > recommendation)? >> >> I don't know. I've always taken these things to be cargo cult, but I'd >> suggest you ask on one of the ZFS mailing lists or check their archives. >> I can say that we haven't suffered any noticeable ill effects in our >> configuration. >> > > There was this discussion on the ZOL list: > https://groups.google.com/a/zfsonlinux.org/forum/#!topic/zfs-discuss/BO5vz2u3r7s > > I think a lot of the power of two plus parity "guideline" was regarding > 4k/512 sector drives. > > That said (8+3)x3, 2 hot spares and a slog could work for a 36 bay RAIDZ3 > system if you want to stick to the power of two guideline. > > Best bet is to performance test 9+2 vs 8+3 for your storage load. > smartos-discuss | Archives | Modify Your Subscription ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
