Re: Paging space on a fastT
From: Wilson, Jeff (Jeff.Wilson_at_GWL.COM)
Date: 01/14/04
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Date: Wed, 14 Jan 2004 09:54:45 -0700 To: aix-l@Princeton.EDU
Here is my vmtune results .
vmtune: current values:
-p -P -r -R -f -F -N
-W
minperm maxperm minpgahead maxpgahead minfree maxfree pd_npages
maxrandwrt
401040 1604160 2 8 120 128 65536
0
-M -w -k -c -b -B -u -l
-d
maxpin npswarn npskill numclust numfsbufs hd_pbuf_cnt lvm_bufcnt
lrubucket defps
1677709 88064 22016 1 186 1152 9
131072 1
-s -n -S -L -g
-h
sync_release_ilock nokilluid v_pinshm lgpg_regions lgpg_size
strict_maxperm
0 0 0 0 0 0
-t -j -J -z
maxclient j2_nPagesPer j2_maxRandomWrite j2_nRandomCluster
1604160 32 0 0
-Z -q -Q -y
j2_nBufferPer j2_minPageReadAhead j2_maxPageReadAhead
memory_affinity
512 2 8 0
-V -i
num_spec_dataseg spec_dataseg_int
0 512
PTA balance threshold percentage = 50.0%
number of valid memory pages = 2097136 maxperm=80.0% of real memory
maximum pinable=80.0% of real memory minperm=20.0% of real memory
number of file memory pages = 1287466 numperm=64.2% of real memory
number of compressed memory pages = 4409 compressed=0.2% of real
memory
number of client memory pages = 0 numclient=0.0% of real memory
# of remote pgs sched-pageout = 0 maxclient=80.0% of real memory
Jeff Wilson
-----Original Message-----
From: Bob.Kelley@BRINKSINC.COM [mailto:Bob.Kelley@BRINKSINC.COM]
Sent: Wednesday, January 14, 2004 9:21 AM
To: aix-l@Princeton.EDU
Subject: Re: Paging space on a fastT
what version of aix are you running? check your vmtune settings and post
pls
Bobby Kelley Jr.
972-877-5341
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We are running the paging monster app "SAP on DB2". I have never seen
an
app eat paging space like this one. If we bounce SAP we get it all back
but until we do that SAP keeps all the paging space and dose not release
it. As always the recommend 2 X physical memory but with the new SAP
installs they want 3 X physical memory which is ridicules but I have no
choice in the matter so I have to add it even if they don't need it.
Jeff Wilson
303-737-5399
-----Original Message-----
From: JOSEPH KREMBLAS [mailto:jkremblas@REDHEARTGIFTS.COM]
Sent: Wednesday, January 14, 2004 8:34 AM
To: aix-l@Princeton.EDU
Subject: Re: Paging space on a fastT
Jeff,
Before throwing more paging space at the system, have you ran
vmstat and iostat to see what the system is doing? Can you provide
a
vmstat listing and iostat listing? Are you running Oracle? Any
other
databases? Also, provide the output of vmtune and schedtune. The
group may be able to tell what's going on performance wise and
make
some recommedations.
--joseph
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU] On
Behalf
Of Wilson, Jeff
Sent: Wednesday, January 14, 2004 8:27 AM
To: aix-l@Princeton.EDU
Subject: Paging space on a fastT
I was wondering if anyone has had any experience putting paging
space
on attached disks like a fastT 900. I am out of space on my
internal
OS disks and need more paging space and was wondering if there are
any problems I should be aware of before I do this. Thanks for
you
help.
Jeff Wilson
System Administrator
Great-West Life & Annuity Ins. Co.
Desk: (303) 737-5399
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