On 30/10/2016 11:24 PM, Gandalf Corvotempesta wrote:> > I've added an ssd to a zpool to be used as zil and l2arc cache. (One > partition for each service) > > Seems to be unused. I've tried with arcstat.sh script and i don't see > any increasing usage for the cache > > How can i debug the zil/arc cache usage? >This is for VM Hosting? pretty normal. I've run l2arc for weeks with VM's on ZFS or gluster/zfs and only seen 4%-6% hit ratios. Between KVM caching and the zil, l2arc never gets a chance to shine. -- Lindsay Mathieson
Il 30 ott 2016 14:31, "Lindsay Mathieson" <lindsay.mathieson at gmail.com> ha scritto:> > This is for VM Hosting? pretty normal. I've run l2arc for weeks with VM'son ZFS or gluster/zfs and only seen 4%-6% hit ratios. Between KVM caching and the zil, l2arc never gets a chance to shine.>Currently i don't have any VM. I've just transferred my work maildir (about 80GB) to test a webmail and dovecot server through gluster mount Even by creating and reading huge test files i don't see any usage -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20161030/bff5543c/attachment.html>