Re: IP pool buffers below threshold in errpt for css0

Hi Lisa,

This error relates to the SP switch. By default the rpoolsize and spoolsize
are to small sized for SP nodes with high throughput like an ITSM server.
The following command will tell you about the switch settings:
  lsattr -El css0
and look at the values for rpoolsize and spoolsize. They should be 10485760
(for the ITSM server).
Probable I'll see 2097152.
To change them:
  /usr/lpp/ssp/css/chgcss -l css0 -a spoolsize=10485760 -a
rpoolsize=10485760

As long as your SP nodes don't complain, there is no need to change these
values.

But you need a reboot to make the change effective. These values will be
remembered after a reboot, but
I noticed, sometimes they return to their default values. I think it happens
after a PSSP upgrade.
So it'll be better to put this command in the file:
   /tftpboot/tuning.cust
so it'll be executed automatically after every reboot.

HTH

Michel Bisschoff
Unix Systems Admin
Brisbane, Australia


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Lisa Cabanas
Sent: Tuesday, 8 October 2002 2:59 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: IP pool buffers below threshold in errpt for css0


Hello *,

Has anyone seen this before &/or knows what I should change (maxbuf or a
vmtune -m) to make it go away?  I have been looking in the SP, PSSP, and
AIX performance books, and tried to find it on IBM's site, but no luck
other than I *think* I know what I am looking at,
i.e.,
This is telling me that there aren't enough buffers (as opposed to them not
being big enough) in the TCP/IP receive memory buffer.  And that this error
is occurring for communication across the switch.

I need one of you AIX super geniuses to help me out, please!

thanks
lisa



LABEL:          IP_POOL_BT_RE
IDENTIFIER:     454AAA48

Date/Time:       Sun Oct  6 23:00:39
Sequence Number: 10357
Machine Id:      000F964F4C00
Node Id:         scpm02
Class:           S
Type:            INFO
Resource Name:   css

Description
IP pool buffers below threshold

Probable Causes
Not enough pool buffers for workload

User Causes
None

        Recommended Actions
        Pool tuning required

Detail Data
Software ID String
LPP=PSSP,Fn
=../../../../../../src/ssp/css/ip/tb3pci/if_ls.c,SID=1.18,L#=3332
POOL NAME
recvpool
CURRENT POOL SIZE
00A0 0000
---------------------------------------------------------------------------