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:
How can I limit this excessive use of memory without impacting the zones that run on this system?
hi,
What is the difference between UBC cache and Metadata cache ? where can i find UBC cache Hits and Metadata cache Hits in hp-ux?
Advanced thanx for the help. (2 Replies)
Dear all,
We are testing two of our servers for mq series connectivity. The scenario is, when one machine is shutting down it's services there are some scripts that do a dns update, which removes the ip address and relates it to the ip address of the other node on our dns server, and the update... (7 Replies)
Hi all
I saw in Microsoft web site www.SysInternals.com a tool called CoreInfo from able to print out on screen the size of the Data and Instruction caches of your processor, the Locigal to Physical Processor mapping, the number of the CPU sockets. etc..
Do you know if in Linux is available a... (2 Replies)
We are having a server running zfs root with 64G RAM and the system has 3 zones running oracle fusion app and zfs cache is using 40G memory as per
kstat zfs:0:arcstats:size. and system shows only 5G of memory is free rest is taken by kernel and 2 remaining zones.
Now my problem is that... (2 Replies)
Hi All,
I am trying to read zpool.cache file to find out pool information like pool name, devices it uses and all properties.
File seems to be in packed format.I am not sure how to unpack it.
But from opensolaris code base we can see that they have used libz for uncompromising this file, but... (0 Replies)
Hi All,
could any one point out any open source test-suites for "File cache" testing and as well as performance test suites for the same. Currently my system is up with Linux/ext4.
Regards
Manish (0 Replies)
Hi,
kstat -p -m zfs -n arcstats -s size returns
zfs:0:arcstats:size 8177310584
this values is approx (7.61 GB)
but my Physical Memory size is only 6144 Megabytes.
Can this happen ?
if yes, then how can I find free memory on the system.
BTW, I ran the kstat commands from a Non... (2 Replies)
Hi All,
How do we calculate the zfs cache value from Solaris 11.3 ?? I normally use memstat but learnt that is not a good practice. Any other way to get the value ? (2 Replies)
Discussion started by: jayadanabalan
2 Replies
LEARN ABOUT FREEBSD
zfsloader
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