topic Re: Performance problem in Operating System - HP-UX

Performance problem

Yaboto — Thu, 13 May 2010 11:20:34 GMT

Hi,

Please help me troubleshoot my HP Unix server that has performance problem:

The backup used to take 20 minutes.
The End of Day or Close of Business for the banking application used to take 35 minutes.

Now the growth of data is not even up to a gigabyte, but the backup is taking 2hours 35 minutes and the EoD or CoB is taking 10 hours.

Why this sudden and serious degradation of performance ?

Please help me troubleshoot.

Re: Performance problem

Prasanth V Aravind — Thu, 13 May 2010 11:26:50 GMT

what tape drive you are using to take backup ??
is lit lan/san backup ??
do you have any backup utility for this ?
what is the system perf status during backup ?

GUdluck
Prasanth

Re: Performance problem

Prasanth V Aravind — Thu, 13 May 2010 11:32:12 GMT

>>>Why this sudden and serious degradation of performance ?

You can compare last 10 days or one month performance data, then make a conclusion what the main difference ?

GUdluck
Prasanth

Re: Performance problem

Pete Randall — Thu, 13 May 2010 11:36:43 GMT

All performance problems can be traced back to a bottleneck on one of four resources: cpu, memory, I/O, or network. The various performance monitoring tools available with HP-UX will show you queue depths for each of these metrics. Find out which resource you are suddenly short on, then you can figure out why and what to do about it.

Pete

Re: Performance problem

HCL Ash — Fri, 14 May 2010 04:52:04 GMT

Hi,

You need to find out which file systems are involved in the backup dir.

Find out which one is having the high i/Os . see the see the integrity and connectivity of the lun.

if any lvol is taking more time to backup worth running fsck on that