From: Siebert, Aaron (aaron.siebert@nagrastar.com)
Date: Wed Apr 14 2004 - 19:10:58 EDT
Dr. Thomas Blinn states to see if a subsystem value can be updated
without reboot you must follow these instruction. Thanks
doctor (root) # sysconfig -Q vm vm-maxvas
vm:
vm-maxvas - type=LONG op=CQ min_val=0 max_val=9223372036854775807
Note that the first shows you the current value (-q for query), the
second shows you the "metadata" for the variable, and if it could be
"reconfigured" (changed on the fly), there would be an "R" in the
"op=" list. "C" is configurable (in the file), "Q" is query-able,
but no "R" means you need a reboot.
Regards,
Aaron Siebert
-----Original Message-----
From: Dr Thomas.Blinn@HP.com [mailto:tpb@doctor.zk3.dec.com]
Sent: Wednesday, April 14, 2004 4:25 PM
To: Siebert, Aaron
Subject: Re: Vm subsystem
Ah, you really just want to change a tunable parameter. Some you
can change "on the fly", some need a reboot. Here's how you can
tell:
doctor (root) # sysconfig -q vm vm-maxvas
vm:
vm-maxvas = 2147483648
doctor (root) # sysconfig -Q vm vm-maxvas
vm:
vm-maxvas - type=LONG op=CQ min_val=0 max_val=9223372036854775807
doctor (root) #
Note that the first shows you the current value (-q for query), the
second shows you the "metadata" for the variable, and if it could be
"reconfigured" (changed on the fly), there would be an "R" in the
"op=" list. "C" is configurable (in the file), "Q" is query-able,
but no "R" means you need a reboot.
This should be covered in the system tuning guide and the man pages
but it may not be really clear..
> We made changes to the vm-maxvas value of the vm subsytem in
> sysconfigtab. Do we need to reboot or is there a way to update the
> value?
>
>
> Regards,
> Aaron Siebert
Tom
Dr. Thomas P. Blinn + Tru64 UNIX Software + Hewlett-Packard Company
Internet: tpb@zk3.dec.com, thomas.blinn@compaq.com, thomas.blinn@hp.com
110 Spit Brook Road, MS ZKO3-2/W17 Nashua, New Hampshire 03062-2698
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ACM Member: tpblinn@acm.org PC@Home: tom@felines.mv.net
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