Date: Wed, 11 Dec 2013 08:20:43 +1030 From: Shane Ambler <FreeBSD@ShaneWare.Biz> To: Oscar Prieto <oscarmpp@gmail.com>, Benjamin Lutz <benjamin.lutz@biolab.ch> Cc: freebsd-stable@freebsd.org Subject: Re: Swap on ZFS - bad idea? (swap_pager: indefinite wait buffer) Message-ID: <52A78CB3.8050109@ShaneWare.Biz> In-Reply-To: <CAK9wqRrug7G5w3HyT7WiLitS8LJ-E1vYUNsD0X0EjkYfxcqgoQ@mail.gmail.com> References: <OFB3F5370B.79D00F5F-ONC1257C3D.0038AB15-C1257C3D.003AB574@biotronik.com> <CAK9wqRrug7G5w3HyT7WiLitS8LJ-E1vYUNsD0X0EjkYfxcqgoQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 11/12/2013 04:06, Oscar Prieto wrote: > Personally I still have to read an announcement telling that swap on zfs is > relliable. I'm still using a dedicated swap partition on every install due > to that kind of behaviour. > On Tue, Dec 10, 2013 at 11:41 AM, Benjamin Lutz <benjamin.lutz@biolab.ch>wrote: > >> This sort of hang seems to happen every couple of months. I'd really like >> some pointers on how to increase the stability of this system. Maybe there >> are some more tunables I need to adjust? Or is swap on ZFS maybe just not >> a great idea? I did read somewhere that it is not recommended to use a zvol for swap. Personally I did setup swap on a zvol when I first started with zfs. Turning it off showed a performance boost but I never had any errors from it. I had only setup a single disk zpool so maybe its swap on zfs raidz that causes the errors.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?52A78CB3.8050109>