On May 17, 2012, at 5:28 AM, Paul Kraus wrote:

> On Wed, May 16, 2012 at 3:35 PM, Paynter, Richard
> <richard.payn...@infocrossing.com> wrote:
>> Does anyone know what the minimum value for zfs_arc_max should be set to?
>> Does it depend on the amount of memory on the system, and – if so – is there
>> a formula, or percentage, to use to determine what the minimum value is?
>    I would assume that it should not be set any lower than `kstat
> zfs::arcstats:c_min`, which I assume you can set with zfs_arc_min in
> /etc/system, but that does not really answer your question.

arc_c_max and arc_c_min are used for different things. If you make significant
changes there, then it is a good idea to set both zfs_arc_min, zfs_arc_max, and
zfs_arc_meta_limit as a set.

NB, the minimum size of these is 64MB.
 -- richard

ZFS Performance and Training

zfs-discuss mailing list

Reply via email to