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Operating Systems Solaris Possible to increase swap size for existing UFS-based drive slice? Post 302799641 by jlliagre on Saturday 27th of April 2013 01:34:48 AM
Old 04-27-2013
Quote:
Originally Posted by JT-KGY
Also ZFS does tend to slow down dramatically after the system has been up
for a while... to the point that login onto the shell would take some 10
seconds... any access to the disk takes longer to respond..etc.
Then you should post echo ::memstat|mdb -k, vmstat 5 5, zpool iostat -v 5 5 and swap -s output when this problem occur.
Quote:
Is there any way to refresh the ZFS cache?
No sure what you mean as the ARC cache is always "fresh".
You can clear it by exporting/importing the pool.
Is your ARC size capped ?
 

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zdb(8)							  System Administration Commands						    zdb(8)

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(8), zpool(8), attributes(5) SunOS 5.11 31 Oct 2005 zdb(8)
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