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Full Discussion: Help with ZFS arc cache
Operating Systems Solaris Help with ZFS arc cache Post 302479930 by bluescreen on Monday 13th of December 2010 10:04:08 AM
Old 12-13-2010
Help with ZFS arc cache

Greetings Forumers!

I have a Solaris 10u9 M5000 with 32GB RAM and have noticed the ZFS arc cache is consuming large amount of memory. Here's what I see on my system:
Code:
# echo ::memstat|mdb -k
Page Summary                Pages                MB  %Tot
------------     ----------------  ----------------  ----
Kernel                     534548              4176   13%
ZFS File Data             2898766             22646   70%
Anon                       253850              1983    6%
Exec and libs               23498               183    1%
Page cache                  22613               176    1%
Free (cachelist)            33639               262    1%
Free (freelist)            350437              2737    9%

Total                     4117351             32166
Physical                  4095740             31997

How can I limit this excessive use of memory without impacting the zones that run on this system?


Thanks is Advance!
 

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ZFSLOADER(8)						    BSD System Manager's Manual 					      ZFSLOADER(8)

NAME
zfsloader -- kernel bootstrapping final stage DESCRIPTION
zfsloader is an extended variant of loader(8) with added support for booting from ZFS. This document describes only differences from loader(8). ZFS FEATURES
zfsloader supports the following format for specifying ZFS filesystems which can be used wherever loader(8) refers to a device specification: zfs:pool/filesystem: where pool/filesystem is a ZFS filesystem name as described in zfs(8). If /etc/fstab does not have an entry for the root filesystem and vfs.root.mountfrom is not set, but currdev refers to a ZFS filesystem, then zfsloader will instruct kernel to use that filesystem as the root filesystem. ZFS COMMAND EXTENSIONS
lsdev [-v] Lists ZFS pools in addition to disks and partitions. Adding -v shows more ZFS pool details in a format that resembles zpool status output. lszfs filesystem A ZFS extended command that can be used to explore the ZFS filesystem hierarchy in a pool. Lists the immediate children of the filesystem. The filesystem hierarchy is rooted at a filesystem with the same name as the pool. FILES
/boot/zfsloader zfsloader itself. EXAMPLES
Set the default device used for loading a kernel from a ZFS filesystem: set currdev=zfs:tank/ROOT/knowngood: SEE ALSO
gptzfsboot(8), loader(8), zfs(8), zfsboot(8), zfsloader(8), zpool(8) HISTORY
The zfsloader first appeared in FreeBSD 7.3. AUTHORS
This manual page was written by Andriy Gapon <avg@FreeBSD.org>. BSD
September 15, 2014 BSD
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