HPUX Disk info

[Scott McDade]

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?

[Calandrello]

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.

[Steven E. Protter · Accepted solution]

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

[Geoff Wild]

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

[George Liu_4]

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