Date: Sun, 18 Sep 2011 14:29:20 +0100 From: Graeme Dargie <arab@tangerine-army.co.uk> To: "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: System locking up. Message-ID: <0EE458C34045A44DBC2CA2DC5CEB42B52344BE4831@mercury.universe.galaxy.lcl>
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Hi All, I have a system that is being problematic, I suspect but I cannot say for s= ure it is maybe related to ZFS as I have a fairly large ZFS pool on the mac= hine. The system will just lock up, local console does not respond to the k= eyboard, num lock still changes the led on the keyboard, the system still r= esponds to pings but you cannot ssh to the unit. The behaviour is random th= e system can be running for 50 days plus with no issues then suddenly it en= ters this state, the error logs do not show anything. System 8.2-RELEASE FreeBSD 8.2-RELEASE #0 AMD 64 Running on an AMD x2 5600 4gb of DDR2 Gmirror 80gb boot disks 6 x 1.5TB SATA II disks using AHCI Loader.conf vfs.zfs.prefetch_disable=3D0 //vfs.zfs.txg.timeout=3D"5" vm.kmem_size=3D"1024M" vm.kmem_size_max=3D"1024M" vfs.zfs.arc_max=3D"100M" vfs.zfs.vdev.cache.size=3D"100M" ZFS filesystem version 4 ZFS storage pool version 15 Is this likely to be a case of just not enough ram? Or is there some other = trouble shooting I could do to try and nail down what is going on as it ten= ds to happen when the ZFS zpool is being accessed heavily. Regards Graeme
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