Date: Mon, 16 Feb 2015 09:58:22 +0100 From: Frank de Bot <lists@searchy.net> To: freebsd-stable@freebsd.org Subject: Re: ZFS L2arc 16.0E size Message-ID: <54E1B12E.9070809@searchy.net> In-Reply-To: <54E13F41.7000703@multiplay.co.uk> References: <54E1388C.3060602@searchy.net> <54E13F41.7000703@multiplay.co.uk>
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I did remove and added devices again, with: 'zpool remove tank gpt/l2arc1 gpt/l2arc2' and then 'zpool add tank cache gpt/l2arc1 gpt/l2arc2' I left it running overnight and the same situation occured. cache - - - - - - gpt/l2arc1 175G 16.0E 11 106 55.5K 9.75M gpt/l2arc2 167G 16.0E 14 107 68.8K 9.81M For faster filling of the l2arc I also had 2 systcl's set: vfs.zfs.l2arc_write_max: 33554432 vfs.zfs.l2arc_write_boost: 33554432 I do not plan to use this for production, only in testing. Regards, Frank de Bot Steven Hartland wrote: > IIRC this was fixed by r273060, if your remove your cache device and > then add it back I think you should be good. > > On 16/02/2015 00:23, Frank de Bot (lists) wrote: >> Hello, >> >> I have a FreeBSD 10.1 system with a raidz2 zfs configuration with 2ssd's >> for l2arc . It is running '10.1-STABLE FreeBSD 10.1-STABLE #0 r278805' >> Currently I'm running tests before it can go to production, but I have >> the following issue. After a while the l2arc devices indicate 16.0E free >> space and it starts 'consuming' more than it can hold >> >> cache - - - - - - >> gpt/l2arc1 107G 16.0E 0 2 0 92.7K >> gpt/l2arc2 68.3G 16.0E 0 1 0 60.8K >> >> It ran good for a while, where data was removed from cache so it could >> be filled with newer data. (Free space was always around 200/300Mbytes). >> >> I've read about similar issues, which should be fixed in different >> commits, but I'm running the latest stable 10.1 kernel right now. (One >> of the last similar issue is: >> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=197164 ) >> Another similar issue reported at FreeNAS >> https://bugs.freenas.org/issues/5347 suggested it would be a hardware >> issue, but I have 2 servers which experience the same problem. One has a >> Crucial M500 drive and the other a M550. Both have a 64G partition voor >> l2arc. >> >> What is really going on here? >> >> >> Regards, >> >> >> Frank de Bot >> _______________________________________________ >> 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" > > _______________________________________________ > 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" >
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