8 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
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
2. Solaris
Hi,
I'm trying to get a Flash Archive Jumpstart Running with ZFS Filesystem. For Testing I set up a VirtualBox VM with 2 Disks attached. On the first disk I have the ZFS root pool, on the second Disk I have some more ZFS Pools which I use for 2 additional Zones I've set up. Restoring works fine if... (1 Reply)
Discussion started by: NoelzeN
1 Replies
3. Solaris
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:
# echo ::memstat|mdb -k
Page Summary Pages MB %Tot
------------ ---------------- ... (9 Replies)
Discussion started by: bluescreen
9 Replies
4. Solaris
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)
Discussion started by: shailesh_111
0 Replies
5. Solaris
I have created a flash archive from a Ldom on T5220 with zfs root solaris 10_u8. But after creation of flar the info shows the
content_architectures=sun4c,sun4d,sun4m,sun4u,sun4us,sun4s
but not sun4v due to which i 'm unable to install this flash archive on another Ldom on the same host. Is... (0 Replies)
Discussion started by: fugitive
0 Replies
6. Solaris
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)
Discussion started by: fugitive
2 Replies
7. Solaris
Has ZFS root is being supported in flash archive in the recently released update 7 .. i read a specific patch has been released for this , can anyone let me know that , and have anybody tested it if its working fine or not ? (1 Reply)
Discussion started by: fugitive
1 Replies
8. Solaris
i had a situation where an app i was running just didn't have enough resources on a proliant dl365 (running sol10x86). so i ended up building out a dl385g2. the dl365 had zfs root file system which was managing the whole disk (smart array taking the raid 1+0). anyway, i figured i could migrate the... (2 Replies)
Discussion started by: pupp
2 Replies
Cache::SharedMemoryCache(3pm) User Contributed Perl Documentation Cache::SharedMemoryCache(3pm)
NAME
Cache::SharedMemoryCache -- extends the MemoryCache.
DESCRIPTION
The SharedMemoryCache extends the MemoryCache class and binds the data store to shared memory so that separate process can use the same
cache.
The official recommendation is now to use FileCache instead of SharedMemoryCache. The reasons for this include:
1) FileCache provides equal or better performance in all cases that we've been able to test. This is due to all modern OS's ability to
buffer and cache file system accesses very well.
2) FileCache has no real limits on cached object size or the number of cached objects, whereas the SharedMemoryCache has limits, and rather
low ones at that.
3) FileCache works well on every OS, whereas the SharedMemoryCache works only on systems that support IPC::ShareLite. And IPC::ShareLite
is an impressive effort -- but think about how hard it is to get shared memory working properly on *one* system. Now imagine writing a
wrapper around shared memory for many operating systems.
SYNOPSIS
use Cache::SharedMemoryCache;
my %cache_options_= ( 'namespace' => 'MyNamespace',
'default_expires_in' => 600 );
my $shared_memory_cache =
new Cache::SharedMemoryCache( \%cache_options ) or
croak( "Couldn't instantiate SharedMemoryCache" );
METHODS
See Cache::Cache for the API documentation.
OPTIONS
See Cache::Cache for the standard options.
PROPERTIES
See Cache::Cache for the default properties.
SEE ALSO
Cache::Cache, Cache::MemoryCache
AUTHOR
Original author: DeWitt Clinton <dewitt@unto.net>
Last author: $Author: dclinton $
Copyright (C) 2001-2003 DeWitt Clinton
perl v5.12.4 2009-03-01 Cache::SharedMemoryCache(3pm)