On Jun 20, 2012, at 4:08 AM, Jim Klimov wrote: > > Also by default if you don't give the whole drive to ZFS, its cache > may be disabled upon pool import and you may have to reenable it > manually (if you only actively use this disk for one or more ZFS > pools - which play with caching nicely).
This is not correct. The behaviour is to attempt to enable the disk's write cache if ZFS has the whole disk. Relevant code: http://src.illumos.org/source/xref/illumos-gate/usr/src/uts/common/fs/zfs/vdev_disk.c#319 Please help us to stop propagating the misinformation that ZFS disables write caches. -- richard -- ZFS and performance consulting http://www.RichardElling.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
