Error en Syslog "Deferred swap reservation failure pid: XXXX"

[Ivan_86]

Hi to all

One more time need of your help

I have a Superdome SD32000 with 16 gb of memory and 2 swap areas configured in /vg00/lvol2 of 200 Mb and /vg00/lvol10 of 16384 Mb.

The area of lvol2 is 100 % and the of lvol10 is 43%

The syslof present the follow error "Deferred swap reservation failure pid: XXXX"

Sombody can help me about this error,

Thanks.!

[Steven E. Protter]

http://www2.itrc.hp.com/service/james/dispDoc.do?docURL=http%3A%2F%2Fsearch.hp.com%2Fredirect.html%3Furl%3Dhttp%253A%2F%2Fforums1.itrc.hp.com%2Fservice%2Fforums%2Fquestionanswer.do%253FthreadId%253D704200%26qt%3D%2BDeferred%2Bswap%2Breservation%2Bfailure%2Bpid%253A%26hit%3D1&aid=SEARCH_FORUMS&pil=1&serStr=Deferred+swap+reservation+failure+pid%3A&pir=1

There is a answer in that thread that deserves a bunny.

SEP

[Ivan_86]

Thanks Steven

But i can´t see the link, the link go to page blank


Thanks

[RAC_1]

Is this hp-ux??

Check swap space utilization.
swapinfo -mat
If it all used, you will get these errors. The thing to check is why you are swapping.

[Ivan_86]

Yes is Hp-ux 11.i attach te outuput of the swapinfo

#swapinfo -mat
Mb Mb Mb PCT START/ Mb
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME
dev 200 200 0 100% 0 - 1 /dev/vg00/lvol2
dev 16384 7123 9261 43% 0 - 1 /dev/vg00/lvol10
reserve - 9261 -9261
memory 12684 9779 2905 77%
total 29268 26363 2905 90% - 0 -

[Steven E. Protter]

Sort Answers By: Date or Points
Sridhar Bhaskarla This member has accumulated 20000 or more points
Sep 25, 2004 02:19:13 GMT unassigned
Hi,

Well, this is one of the issues if you are dependent too much on swapmen_on parameter. You should have the device swap atleast equal to the memory size even if you enable swapmem_on parameter unless you are absolutely sure that you are not going to use atleast 25% of your physical memory.

When the system boots, it allocates 75% of memory for swap calculations. Locked memory and dynamic memory allocated by kernel are exceptions to page outs. So, that memory has to be de-allocated from the swap calculations and it is represented as "USED" in the memory column of your swapinfo output. So, at some point of time you may find your 'total swap' used at 100%.

Add more swap and make sure your total swap is atleast equal to the size of the memory.

-Sri
Patrick Wallek expert in this area This member has accumulated 20000 or more points
Sep 25, 2004 03:43:16 GMT unassigned
How much RAM do you have in your machine?

You MUST have at least as much swap allocated, or one form or another, as you have RAM in the machine. According to your swapinfo output you can fully utilize almost 3.5GB of RAM when you add together your device swap (1GB) and your "Pseudo-swap" (the memory line) approx. 2.5GB.

If you have more RAM than that, then you could very well get the error that you are seeing.

It may very well be that you do need to add some more swap to your system.

I don't know why you can't see the content.

Here it is anyway. I've requested this thread be moved from Linux sysadin to HP-UX sysadmin.

SEP

[melvyn burnard]

The link supplied by SEP appears to have a problem, I think this is the one he was trying to point you at:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=704200