SUMMARY Discovering the process witch has iowait

From: Modrego K. SBD <ModregoK_at_bancsabadell.com>
Date: Thu Aug 23 2001 - 04:58:50 EDT
	Hello, i can't get the information of the process witch is sucking =
the cpu whit iowait, but i find finally find the porcess doing a litle =
investigation...

	The probleas was we have a two FC Card connected to one  e10k =
domain... this Cards has the time to fail over to infinite, and when i =
pull out one wire... the process that are acessing to the SAN disks wast =
still iowaiting.. and the sd driver not are alert from the FC drivers... i =
need to change this value to fail over , becouse i have DMP ( Vertias ).

Regards..

PD: If anyone know how to determine how much iowat processor are wasting...=
=20

PD2: Please... sorry my horrible engliush... i am learning... :)















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 SBD Consultors                           =20
 DNET - Web Server & Middleware=20
 Sistemas Internet Banco Sabadell
 Tel: 93.728.2440
 E-mail: modregok@bancsabadell.com
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>>> "Modrego K. SBD" <ModregoK@bancsabadell.com> 20/08/01 09:15 >>>

	Hi all!.

	I have server thans as a iowait, but no access to the disks is =
reported and no access to the NFS mounted FS, i don't view any suspicius =
process.

[cronos] /usr/ucb #iostat -c 2
         cpu
 us sy wt id
 10  5  3 82
 10  1 48 40
 15  6 40 39
 20 17 52 12
 10  1 44 46



[cronos] /usr/ucb #./ps -uax
USER       PID %CPU %MEM   SZ  RSS TT       S    START  TIME COMMAND
weblogic  4803 10.3 20.7524560417128 ?        R  agto 17 280:18 /usr/java1.=
2/bin/../
upasarel  7835  6.5 10.6279168213760 ?        S  agto 10 376:54 /usr/bin/..=
/java/bin
weblogic 11097  1.4  0.1 1984 1584 pts/3    S 08:45:28  0:47 top
root         3  1.0  0.0    0    0 ?        S  may  04 3474:16 fsflush
weblogic 24598  0.4  4.29659283792 ?        S  agto 14 102:38 /usr/jdk1.2.2=
/bin/..
weblogic  1487  0.2  0.61572810912 ?        S  agto 14 23:49 /usr/jdk1.2.2/=
bin/..
upasarel  6958  0.2  1.018381618928 ?        S  agto 14  5:10 /usr/bin/../j=
ava/bin
upasarel  7000  0.2  0.811682416144 ?        S  agto 14  4:52 /usr/bin/../j=
ava/bin
root     11759  0.1  0.1 1328 1176 pts/0    O 09:08:36  0:00 ./ps -uax
root       718  0.1  0.1 2816 1240 ?        S  jul  06 49:54 /export/ism/ag=
ents/e
weblogic 29483  0.1  4.214268883352 ?        S  agto 17 18:08 /usr/jdk1.2.2=
/bin/..
root       731  0.1  0.1 2736 1264 ?        S  jul  06 55:56 /export/ism/ag=
ents/e
root       741  0.1  0.1 2080  680 ?        S  jul  06 13:29 /export/ism/ag=
ents/e
root     26919  0.1  0.1 1656 1248 pts/0    S  agto 17  0:00 -ksh
weblogic  6161  0.1  4.214362483056 ?        S  agto 14  3:08 /usr/jdk1.2.2=
/bin/..
adm      11599  0.1  0.1 2376 2240 ?        S 09:00:00  0:00 /usr/lib/sa/sa=
dc 120
root     22149  0.1  0.1 3136 1256 ?        S  jun  13  3:16 ap_daemon
weblogic 20956  0.0  4.114204881616 ?        S  agto 15 15:23 /usr/jdk1.2.2=
/bin/..
root         0  0.0  0.0    0    0 ?        T  may  04  1:39 sched
root         1  0.0  0.0  712  160 ?        S  may  04  9:07 /etc/init -
root         2  0.0  0.0    0    0 ?        S  may  04  1:50 pageout
root         9  0.0  0.0  704   96 ?        S  may  04 15:54 /sbin/cvcd
root       158  0.0  0.1 2152  800 ?        S  may  04  4:32 /usr/sbin/rpcb=
ind
root       160  0.0  0.0 2096  304 ?        S  may  04  0:00 /usr/sbin/keys=
erv
root       185  0.0  0.1 2064  704 ?        S  may  04  0:07 /usr/sbin/inet=
d -s
daemon     190  0.0  0.1 2272  384 ?        S  may  04  0:00 /usr/lib/nfs/s=
tatd
root       192  0.0  0.0 1800  176 ?        S  may  04  0:00 /usr/lib/nfs/l=
ockd
root       212  0.0  0.1 3592 1648 ?        S  may  04  0:15 /usr/lib/autof=
s/auto
root       216  0.0  0.1 4440 1504 ?        S  may  04 150:59 /usr/sbin/sys=
logd
root       229  0.0  0.1 1632  600 ?        S  may  04  0:18 /usr/sbin/cron=

root       254  0.0  0.1 2680  656 ?        S  may  04  1:00 /usr/lib/lpsch=
ed
root       278  0.0  0.1  920  392 ?        S  may  04  7:13 /usr/lib/utmpd=

root       321  0.0  0.1 1880  784 ?        S  may  04  3:21 /usr/lib/snmp/=
snmpdx
root       322  0.0  0.1 2784  784 ?        S  may  04  5:14 mibiisa -p =
32796
root       352  0.0  0.1 2424  704 ?        S  may  04  0:24 /usr/sbin/vold=

root       363  0.0  0.1 3040  712 ?        S  may  04  0:02 /usr/sbin/nsre=
xecd -
root       373  0.0  0.1 3096 1120 ?        S  may  04  0:03 /usr/sbin/nsre=
xecd -
root       377  0.0  0.1 6048 1096 ?        S  may  04  2:22 /usr/dt/bin/dt=
login=20
root       378  0.0  0.1 4880 2200 ?        S  may  04 148:08 /opt/SRSra/bi=
n/perl=20
root       436  0.0  0.1 1808  448 ?        S  may  04  0:01 /opt/SRSra/sbi=
n/sshd
root       481  0.0  0.1 2752  320 ?        S  may  04  0:00 /usr/lib/dmi/d=
mispd
root       483  0.0  0.1 3272  376 ?        S  may  04  0:00 /usr/lib/dmi/s=
nmpXdm
root       583  0.0  0.1 1512  408 ?        S  may  04  0:00 /usr/lib/saf/s=
ac -t=20
root       584  0.0  0.0 1656  216 console  S  may  04  0:00 -ksh
upasarel   586  0.0  0.0  960  120 ?        S  may  04  0:00 -sh -c =
/expl/bin/ppl
upasarel   615  0.0  0.1  872  464 ?        S  may  04 11:46 /expl/bin/ppli=
st 60
root       624  0.0  0.1 1584  448 ?        S  may  04  0:00 /usr/lib/saf/t=
tymon
root       736  0.0  0.1 2160  376 ?        S  jul  06  0:29 /export/ism/ag=
ents/b
root       739  0.0  0.0 2064  232 ?        S  jul  06  0:00 /export/ism/ag=
ents/e
weblogic  1486  0.0  0.1  960  712 ?        S  agto 14  0:00 /bin/sh =
startSNMPAge
root      3315  0.0  0.1 2336  688 ?        S  agto 07  1:30 /usr/lib/inet/=
xntpd
weblogic  4797  0.0  0.1  968  720 ?        S  agto 17  0:00 /bin/sh =
arranca_bsne
weblogic  6155  0.0  0.1  960  712 ?        S  agto 14  0:00 /bin/sh =
arranca_serv
upasarel  7021  0.0  0.1 2936 1248 ?        S  jul  31  1:15 osagent -v -p =
14010
root      8397  0.0  0.1 3016 2072 ?        S  jun  12 19:34 /usr/sbin/nscd=

root      8428  0.0  0.1 1584  952 ?        S  agto 17  0:00 in.telnetd
fvillas   8430  0.0  0.1 1656  920 pts/9    S  agto 17  0:00 -ksh
root      8437  0.0  0.1 1656  920 pts/9    S  agto 17  0:00 -ksh
root      9113  0.0  0.1 1656  808 ?        S  jun  06  3:48 /usr/bin/ksh =
/utils/
root      9122  0.0  0.0 1512  208 ?        S  may  14  0:00 /serena/echang=
eman/s
root      9129  0.0  0.0 2016  184 ?        S  may  14  0:00 /serena/echang=
eman/v
root     10191  0.0  0.1 1584 1336 ?        S 08:13:53  0:00 in.telnetd
sillero  10193  0.0  0.1 1656 1328 pts/1    S 08:13:53  0:00 -ksh
root     10203  0.0  0.1 1656 1328 pts/1    S 08:14:20  0:00 -ksh
weblogic 10212  0.0  0.1 1656 1328 pts/1    S 08:14:26  0:00 -ksh
root     10283  0.0  0.1 1584 1336 ?        S 08:19:33  0:00 in.telnetd
jangli   10285  0.0  0.1 1656 1328 pts/2    S 08:19:33  0:00 -ksh
root     10295  0.0  0.1 1656 1328 pts/2    S 08:19:43  0:00 -ksh
weblogic 10311  0.0  0.1 1656 1328 pts/2    S 08:19:54  0:00 -ksh
root     10871  0.0  0.0 2048  208 ?        S  jun  13  0:00 rpc.metad
root     11033  0.0  0.1 1584 1336 ?        S 08:44:42  0:00 in.telnetd
operador 11035  0.0  0.1 1656 1328 pts/3    S 08:44:43  0:00 -ksh
root     11073  0.0  0.1 1656 1328 pts/3    S 08:45:03  0:00 -ksh
weblogic 11084  0.0  0.1 1656 1328 pts/3    S 08:45:12  0:00 -ksh
root     11739  0.0  0.1  896  784 ?        S 09:06:42  0:00 sleep 300
infobanc 12449  0.0  0.0 1656  176 ?        S  jun  15  0:00 ksh -c cd =
/export/ho
infobanc 12451  0.0  0.1117304  800 ?        S  jun  15  0:38 ./Telnet3270S=
erver
root     12782  0.0  0.1 1584  952 ?        S  agto 17  0:00 in.telnetd
fvillas  12784  0.0  0.1 1656  920 pts/11   S  agto 17  0:00 -ksh
root     12794  0.0  0.1 1656 1176 pts/11   S  agto 17  0:00 -ksh
weblogic 20950  0.0  0.1  960  712 ?        S  agto 15  0:00 /bin/sh =
arranca_bssh
weblogic 24592  0.0  0.1  960  712 ?        S  agto 14  0:00 /bin/sh =
arranca_apps
root     26800  0.0  0.1 1584 1152 ?        S  agto 17  0:00 in.telnetd
kenneth  26802  0.0  0.1 1656 1008 pts/0    S  agto 17  0:00 -ksh
root     29086  0.0  0.1 1264  672 pts/0    S  agto 17  0:00 /etc/format
weblogic 29468  0.0  0.1  960  720 ?        S  agto 17  0:00 /bin/sh =
arranca_colp
root     29504  0.0  0.1 2280  680 ?        S  jul  20  0:03 /usr/lib/sendm=
ail -b
[cronos] /usr/ucb #


[cronos] /usr/ucb #vmstat 1
 procs     memory            page            disk          faults      cpu
 r b w   swap  free  re  mf pi po fr de sr m0 m1 m2 m3   in   sy   cs us =
sy id
 0 0 0   3136   184   0 156 56 13 39  0  5  3  1  1  0  102  100  263 10  =
5 85
 0 1 0 3966448 34952  0   8  0  0  0  0  0  0  0  0  0  893 2300 1534 82  =
4 14
 0 1 0 3966448 34952  0   0  0  0  0  0  0  0  0  0  0  394  910  455  3 =
10 87
 0 1 0 3966448 34952  0   0  0  0  0  0  0  0  0  0  0  463  680  712  6  =
0 94
 0 1 0 3966448 34936  0   3  0  0  0  0  0  0  0  0  0  410  704  448  4  =
2 94
 0 1 0 3966456 34944  0 184  0  0  0  0  0  0  0  0  0  454 1216  441  4  =
5 91
 0 1 0 3966456 34928  0   1  0  0  0  0  0  0  0  0  0  440  960  471  6  =
2 92
 0 1 0 3966456 34912  0 175  0  0  0  0  0  0  0  0  0  367 1179  305  6 =
10 84
 0 1 0 3966456 34912  0   0  0  0  0  0  0  0  0  0  0  331  436  120  0  =
0 100



	Another thing is that the information of vmstat and iostat thats =
refers to the idel cpu, is very diferent.

	My question is... is any way to discover witch process has =
iowait???

Any idea??

Thanks in advance!!



SBD Consultors                           =20
DNET - Web Server & Middleware=20
Sistemas Internet Banco Sabadell
Tel: 93.728.2440
E-mail: modregok@bancsabadell.com=20
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sunmanagers mailing list
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Received on Thu Aug 23 09:58:50 2001

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