correct ratio of arc to l2arc?
from http://blogs.sun.com/brendan/entry/l2arc_screenshots
It costs some DRAM to reference the L2ARC, at a rate proportional to record
size.
For example, it currently takes about 15 Gbytes of DRAM to reference 600 Gbytes
of
L2ARC - at an 8 Kbyte ZFS record size.
correct ratio of arc to l2arc?
from http://blogs.sun.com/brendan/entry/l2arc_screenshots
Thanks Rob. Hmm...that ratio isn't awesome.
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Ethan Erchinger wrote:
correct ratio of arc to l2arc?
from http://blogs.sun.com/brendan/entry/l2arc_screenshots
Thanks Rob. Hmm...that ratio isn't awesome.
TANSTAAFL
A good SWAG is about 200 bytes for L2ARC directory in the ARC for
each record in the L2ARC.
So if your recordsize
Hi all,
Since we've started running 2009.06 on a few servers we seem to be
hitting a problem with l2arc that causes it to stop receiving evicted
arc pages. Has anyone else seen this kind of problem?
The filesystem contains about 130G of compressed (lzjb) data, and looks
like:
$ zpool status -v
This is a mysql database server, so if you are wondering about the
smallish arc size, it's being artificially limited by set
zfs:zfs_arc_max = 0x8000 in /etc/system, so that the majority of
ram can be allocated to InnoDb.
I was told offline that it's likely because my arc size has been
