Date: Tue, 7 Feb 2012 20:53:08 +0100 From: =?iso-8859-1?Q?Peter_Ankerst=E5l?= <peter@pean.org> To: Patrick M. Hausen <hausen@punkt.de> Cc: stable@freebsd.org Subject: Re: Swap on zvol - recommendable? Message-ID: <A8CE0B38-C313-4B14-BEEC-ED16366D0A5B@pean.org> In-Reply-To: <99FFD8AE-F4E0-4BD9-92BC-45D8C8A31383@punkt.de> References: <99FFD8AE-F4E0-4BD9-92BC-45D8C8A31383@punkt.de>
next in thread | previous in thread | raw e-mail | index | archive | help
I can just tell you I had this problem still in 8.1 and it was a HUGE = problem.=20 System stalled every two weeks or so. Now when the swap is moved away = from zfs it works fine. On Feb 6, 2012, at 11:57 AM, Patrick M. Hausen wrote: > Hi, all, >=20 > is it possible to make a definite statement about swap on zvols? >=20 > I found some older discussions about a resource starvation > scenario when ZFS arc would be the cause of the system > running out of memory, trying to swap, yet the ZFS would > not be accessible until some memory was freed - leading to > a deadlock. >=20 > Is this still the case with RELENG_8? The various Root on > ZFS guides mention both choices (decicated or gmirror > partition vs. zvol), yet don't say anything about the respective > merits or risks. I am aware of the fact that I cannot dump to > a raidz2 zvol ... >=20 > Thanks for any hints, > Patrick > --=20 > punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe > Tel. 0721 9109 0 * Fax 0721 9109 100 > info@punkt.de http://www.punkt.de > Gf: J=FCrgen Egeling AG Mannheim 108285 >=20 >=20 >=20 > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to = "freebsd-stable-unsubscribe@freebsd.org" >=20
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?A8CE0B38-C313-4B14-BEEC-ED16366D0A5B>