Help with ZFS arc cache Post: 302479942

8 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

UBC cache vs. Metadata cache

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. Solaris

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...

3. Linux

getting info on Cache Size, Data Cache etc..

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...

4. Solaris

ZFS ARC cache issue

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...

5. Solaris

Zfs::zpool.cache file

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...

6. Linux

File cache /Page cache Linux

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

7. Solaris

ZFS : Can arc size value exceed Physical RAM ?

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...

8. UNIX for Beginners Questions & Answers

Check zfs cache usage for Solaris 11.3

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 ?

LEARN ABOUT OPENSOLARIS

zdb

zdb(1M) 						  System Administration Commands						   zdb(1M)

NAME

       zdb - ZFS debugger

SYNOPSIS

       zdb pool

DESCRIPTION

       The  zdb command is used by support engineers to diagnose failures and gather statistics. Since the ZFS file system is always consistent on
       disk and is self-repairing, zdb should only be run under the direction by a support engineer.

       If no arguments are specified, zdb, performs basic consistency checks on  the  pool  and  associated  datasets,	and  report  any  problems
       detected.

       Any options supported by this command are internal to Sun and subject to change at any time.

EXIT STATUS

       The following exit values are returned:

       0    The pool is consistent.

       1    An error was detected.

       2    Invalid command line options were specified.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWzfsu			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Unstable			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       zfs(1M), zpool(1M), attributes(5)

SunOS 5.11							    31 Oct 2005 							   zdb(1M)

8 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

UBC cache vs. Metadata cache

Discussion started by: sushaga

2. Solaris

ARP Cache

Discussion started by: earlysame55

3. Linux

getting info on Cache Size, Data Cache etc..

Discussion started by: manustone

4. Solaris

ZFS ARC cache issue

Discussion started by: fugitive

5. Solaris

Zfs::zpool.cache file

Discussion started by: shailesh_111