Date: Wed, 3 Jul 2013 15:36:17 +0200 From: mxb <mxb@alumni.chalmers.se> To: Daniel Kalchev <daniel@digsys.bg> Cc: freebsd-fs@freebsd.org Subject: Re: Slow resilvering with mirrored ZIL Message-ID: <2EF46A8C-6908-4160-BF99-EC610B3EA771@alumni.chalmers.se> In-Reply-To: <51D42107.1050107@digsys.bg> References: <CABBFC07-68C2-4F43-9AFC-920D8C34282E@unixconn.com> <51D42107.1050107@digsys.bg>
next in thread | previous in thread | raw e-mail | index | archive | help
Well, then my question persists - why I get so significant drop of speed while resilvering second drive. The only changes to the system are: 1. Second partition for ZIL to create a mirror 2. New disks are 7200rpm. old ones are 5400rpm. On 3 jul 2013, at 15:03, Daniel Kalchev <daniel@digsys.bg> wrote: > > On 03.07.13 15:46, Maxim Bourmistrov wrote: >> Any ideas? >> Am I completely wrong in assuming that ZIL is involved in resilvering process? > > Yes. :-) > > Under some conditions, such as using dedup resilver can be really slow. Nothing to do with ZIL though. You can safely remove ZIL while resilvering.. it is used only during sync writes to the pool at file system level. > > Daniel > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?2EF46A8C-6908-4160-BF99-EC610B3EA771>