[zfs-discuss] ZFS root ARC memory usage on VxFS system...

2010-05-07 Thread Kris Kasner
Hi Folks.. We have started to convert our Veritas clustered systems over to ZFS root to take advantage of the extreme simplification of using Live Upgrade. Moving the data of these systems off VxVM and VxFS is not in scope for reasons to numerous to go into.. One thing my customers noticed

Re: [zfs-discuss] ZFS root ARC memory usage on VxFS system...

2010-05-07 Thread Bill Sommerfeld
On 05/07/10 15:05, Kris Kasner wrote: Is ZFS swap cached in the ARC? I can't account for data in the ZFS filesystems to use as much ARC as is in use without the swap files being cached.. seems a bit redundant? There's nothing to explicitly disable caching just for swap; from zfs's point of

Re: [zfs-discuss] ZFS root ARC memory usage on VxFS system...

2010-05-07 Thread Bob Friesenhahn
On Fri, 7 May 2010, Kris Kasner wrote: One thing my customers noticed immediately was a reduction in free memory as reported by 'top'. By way of explaining that ZFS keeps it's cache in kernel and not in the freelist, it became apparent that memory is being used disproportionally to the