Date: Fri, 31 Aug 2018 11:35:12 +1000 (AEST) From: Grant Gray <grant@gray.id.au> To: "M. Casper Lewis" <mclewis@genomecenter.ucdavis.edu> Cc: freebsd-fs <freebsd-fs@freebsd.org> Subject: Re: Failing ZFS log devices/panic Message-ID: <1121631966.257797.1535679312447.JavaMail.zimbra@grantgray.id.au> In-Reply-To: <20180831011607.GX1473@genomecenter.ucdavis.edu> References: <20180831003436.GW1473@genomecenter.ucdavis.edu> <707525919.257415.1535675999891.JavaMail.zimbra@grantgray.id.au> <20180831011607.GX1473@genomecenter.ucdavis.edu>
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I'm going to defer to people with more experience with this hardware combination than myself, but I will say I've had compatibility issues with SATA SSD's on LSI SAS controllers in the past. In my case this manifested as the SSD's disappearing off the bus and not returning. I've currently got an issue between some HGST SATA disks and a SAS3008 HBA where mixing SAS and SATA disks on the same port results in intermittent I/O errors on the HGST SATA disks, but not other SAS devices. If feasible, it may be useful to move the SSD's onto a plain SATA controller as a diagnostic step. ----- On 31 Aug, 2018, at 11:16 AM, M. Casper Lewis mclewis@genomecenter.ucdavis.edu wrote: > On Fri, Aug 31, 2018 at 10:39:59AM +1000, Grant Gray wrote: >> SAS? SATA? Make/model? HBA? > > SATA. Currently Intel SSDSC2BB24 but like I said, we've tried several. > > HBA is a Supermicro AOC-S3008L-L8I (reports itself as a LSI3008-IT). > > Firmware has been updated to latest on all controllers. > > We've purchased an LSI 9300-8i and scheduled downtime to install it, to > see if we can rule out a bad controller. > >> Are you mixing SAS and SATA on the same bus? > > No, the pool is on separate HBAs. Only the cache and log devices are > attached to this HBA. > >> Pool configuration? > > 8 11-disk raidz3s. We've tried various numbers and configurations of > log devices, anywhere from 4 to 8 devices, both mirrored and unmirrored. > > -- > M. Casper Lewis | mclewis@ucdavis.edu > Systems Administrator | Voice: (530) 754-7978 > Genome Center | > University of California, Davis |
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