Re: [zfs-discuss] zfs_nocacheflush, nvram, and root pools

2008-12-03 Thread Neil Perrin
On 12/02/08 03:47, River Tarnell wrote: > hi, > > i have a system connected to an external DAS (SCSI) array, using ZFS. the > array has an nvram write cache, but it honours SCSI cache flush commands by > flushing the nvram to disk. the array has no way to disable this behaviour. > a > well-kno

Re: [zfs-discuss] zfs_nocacheflush

2008-07-31 Thread Roch - PAE
Peter Tribble writes: > A question regarding zfs_nocacheflush: > > The Evil Tuning Guide says to only enable this if every device is > protected by NVRAM. > > However, is it safe to enable zfs_nocacheflush when I also have > local drives (the internal system drives) using ZFS, in particula

Re: [zfs-discuss] zfs_nocacheflush

2008-07-30 Thread Robert Milkowski
Hello Peter, Wednesday, July 30, 2008, 9:19:30 AM, you wrote: PT> A question regarding zfs_nocacheflush: PT> The Evil Tuning Guide says to only enable this if every device is PT> protected by NVRAM. PT> However, is it safe to enable zfs_nocacheflush when I also have PT> local drives (the intern