topic Re: HPUX Disk info in Operating System - HP-UX

HPUX Disk info

Scott McDade — Tue, 21 Nov 2006 14:20:06 GMT

Hello:

I am experiencing disk access degrade on one of my HPUX 11i systems. I have 2 systems configured exactly the same both HW/SW wise. They have exactly the same file systems partitions and content. One is really fast the second is about 2x Slower when accessing the same file over the network. I know it could be subnet related but I would like to validate that there isn't something wrong with the disk itself. Do you know of any logs that HPUX writes to when accessing files on the hard disk? Something that can tell me what is happening or possibly a utility I could use to track disk i/o and activity?

Re: HPUX Disk info

Calandrello — Tue, 21 Nov 2006 14:23:12 GMT

Friend
this problem of performance can be related the allocation of records creation of file system. the best tool if analyzes in the HP-UX and the Glance Plux pack.

Re: HPUX Disk info

Steven E. Protter — Tue, 21 Nov 2006 14:26:34 GMT

Shalom,

Possible helpful toolset:

http://www.hpux.ws/system.perf.sh

Note that disk firmware may need to be checked and upgraded. I always had hardware do that for me.

SEP

Re: HPUX Disk info

Geoff Wild — Tue, 21 Nov 2006 14:44:21 GMT

If accessing over the network, check things like nfsstat (if using NFS) and netstat ( -in) look for errors, collisions on the one that is slower.

How about the nic it is using?

Use traceroute to see the path.

Here's a script to check your lancards:

# cat /usr/local/bin/lancards
#!/usr/bin/sh
# script to check speed and settings of lan cards
PATH=/usr/sbin:/usr/bin
ppas=`lanscan | awk '$3~/^[0-9]$/{print $3}' | xargs`
for i in $ppas
do
printf "Card at PPA %s - " $i
ipa=`ifconfig lan${i} 2>/dev/null | awk '{ip=$2}END{if(ip==""){printf("Not assigned")}else{printf("%s ",ip)}}'`
printf "IP Address: %15s- " "$ipa"
lanadmin -x $i 2>/dev/null | awk '{$1="";printf("%s",$0)}'
echo ""
done

Rgds...Geoff

Re: HPUX Disk info

George Liu_4 — Tue, 21 Nov 2006 15:17:40 GMT

My first feeling is the network connection is not right in the second box. Have you checked network speed/duplex parameters?