Date: Sat, 23 Dec 2017 07:08:58 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 224536] FLUSHCACHE48 AHCI Timeouts on SMR Drives Message-ID: <bug-224536-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D224536 Bug ID: 224536 Summary: FLUSHCACHE48 AHCI Timeouts on SMR Drives Product: Base System Version: 11.1-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: ilgenox@yahoo.it Hi! Starting from this thread: https://forums.freenas.org/index.php?threads/a-long-journey-to-solve-cam-st= atus-command-timeout-issues.59549/ I had hard times troubleshooting this issue on FreeNAS with 4 x ST8000AS0002 Drives. It seems that drives increase latency over time and exceed the AHCI (hardcoded?) 31000 msec timeout. It will be great if FreeBSD could support these new SMR drives without disabling cache flushing on ZFS. Thanks, Fabio --=20 You are receiving this mail because: You are the assignee for the bug.=
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