Date: Tue, 14 Apr 2015 01:19:40 +0100 From: Steven Hartland <killing@multiplay.co.uk> To: freebsd-fs@freebsd.org Subject: Re: [Bug 195746] zfs L2ARC wrong alloc/free size Message-ID: <552C5D1C.4090708@multiplay.co.uk> In-Reply-To: <bug-195746-3630-BJvCBmQgWP@https.bugs.freebsd.org/bugzilla/> References: <bug-195746-3630@https.bugs.freebsd.org/bugzilla/> <bug-195746-3630-BJvCBmQgWP@https.bugs.freebsd.org/bugzilla/>
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There is a know upstream issue regarding L2ARC accounting see: https://reviews.csiden.org/r/175/ On 13/04/2015 15:58, bugzilla-noreply@freebsd.org wrote: > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195746 > > gkontos@aicom.gr changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |gkontos@aicom.gr > > --- Comment #2 from gkontos@aicom.gr --- > I have exactly the same problem with 2X Intel DC S3500 Series 600GB > > ------------------------------------------------------------------------ > ZFS Subsystem Report Mon Apr 13 10:56:52 2015 > ------------------------------------------------------------------------ > > L2 ARC Summary: (DEGRADED) > Passed Headroom: 69.29m > Tried Lock Failures: 316.43k > IO In Progress: 86 > Low Memory Aborts: 648 > Free on Write: 1.01m > Writes While Full: 202.57k > R/W Clashes: 1.32k > Bad Checksums: 17.34m > IO Errors: 3.23m > SPA Mismatch: 49.06m > > L2 ARC Size: (Adaptive) 3.21 TiB > Header Size: 0.19% 6.21 GiB > > L2 ARC Evicts: > Lock Retries: 146 > Upon Reading: 0 > > L2 ARC Breakdown: 103.52m > Hit Ratio: 34.77% 35.99m > Miss Ratio: 65.23% 67.53m > Feeds: 1.28m > > L2 ARC Buffer: > Bytes Scanned: 116.31 TiB > Buffer Iterations: 1.28m > List Iterations: 78.60m > NULL List Iterations: 2.68m > > L2 ARC Writes: > Writes Sent: 100.00% 620.76k > ------------------------------------------------------------------------ > > > NAME STATE READ WRITE CKSUM > storage ONLINE 0 0 0 > raidz2-0 ONLINE 0 0 0 > multipath/disk1 ONLINE 0 0 0 > multipath/disk2 ONLINE 0 0 0 > multipath/disk25 ONLINE 0 0 0 > multipath/disk4 ONLINE 0 0 0 > multipath/disk5 ONLINE 0 0 0 > multipath/disk6 ONLINE 0 0 0 > raidz2-1 ONLINE 0 0 0 > multipath/disk7 ONLINE 0 0 0 > multipath/disk8 ONLINE 0 0 0 > multipath/disk9 ONLINE 0 0 0 > multipath/disk26 ONLINE 0 0 0 > multipath/disk11 ONLINE 0 0 0 > multipath/disk12 ONLINE 0 0 0 > raidz2-2 ONLINE 0 0 0 > multipath/disk13 ONLINE 0 0 0 > multipath/disk14 ONLINE 0 0 0 > multipath/disk15 ONLINE 0 0 0 > multipath/disk16 ONLINE 0 0 0 > multipath/disk17 ONLINE 0 0 0 > multipath/disk18 ONLINE 0 0 0 > raidz2-3 ONLINE 0 0 0 > multipath/disk19 ONLINE 0 0 0 > multipath/disk20 ONLINE 0 0 0 > multipath/disk21 ONLINE 0 0 0 > multipath/disk22 ONLINE 0 0 0 > multipath/disk23 ONLINE 0 0 0 > multipath/disk24 ONLINE 0 0 0 > logs > mirror-4 ONLINE 0 0 0 > gpt/zil0 ONLINE 0 0 0 > gpt/zil1 ONLINE 0 0 0 > cache > gpt/cache0 ONLINE 0 0 0 > gpt/cache1 ONLINE 0 0 0 > spares > multipath/disk3 AVAIL > multipath/disk27 AVAIL > multipath/disk28 AVAIL > multipath/disk10 AVAIL >
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