Intermittent high disk queue and disk time reported by performance monitor. Server runs like a turtle.

Posted on 2008-06-23
Last Modified: 2012-05-05
I have a ML530 server that we are experiencing intermittent performance issues with. According to the HP insight manager the server is healthy, however it can take up to 1-2 minutes at times to simply browse a directory saving large files can be much worse. Performance monitor is indicating that during these times of degredated performance the disk queue is high as is the % of disk utilization. We have run a complete defrag on all drives which resulted in little or no performance benefit.  
Question by:sheahomes
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
  • 3
LVL 14

Expert Comment

ID: 21846665
What kind of server is it?  File server?  SQL server?  E-mail?

Are the disks local to this machine or is it booting from a SAN?

Also, is there any software running on it that might be producing high disk I/O?

Expert Comment

ID: 21846739
I had similar problems with an older ML.  It turned out to be the array controller.  I just enlisted the help of my local hp tech, he found the problem got the replacement parts and installed them.

Author Comment

ID: 21846926
It is a file server. The drives are located in the server. Only software running on the box is NAV 10.1.5 and Backupexec 11d (idle until 1am) and Undelete 5.0. I have my suspicions about the controller, but its merely a theory as HP insight manager indicates it is healthy.
Portable, direct connect server access

The ATEN CV211 connects a laptop directly to any server allowing you instant access to perform data maintenance and local operations, for quick troubleshooting, updating, service and repair.


Expert Comment

ID: 21846959
yea, we didn't think it was the controller either until the box froze and when we restarted it, it stopped because it couldn't initialize the array.

It seemed to always be brought on by someone saving or opening a large file.

Author Comment

ID: 21847004
When your controller died did it kill the array or were you able to replaced the controller and save the existing array and if so what was involved.

Expert Comment

ID: 21847870
We were able to swap another controller in without problem.  Just make sure your replacement is exactly the same.

As always make sure you have good backup's before hand.

Accepted Solution

sheahomes earned 0 total points
ID: 21868925
Issues was caused by drive corruption. Scheduled a CHKDSK / F on all volumes at boot and errors were found and corrected. Thank to all that responded.

Expert Comment

ID: 21868945
was it an actual Hard Drive going bad, or just corruption within the volume?  Because a controller that is failing can cause that.  Just keep an eye on it, if don't have any more problems then you don't have anything to worry about.

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Valere unit 6 87
Cant access one of the hard disks on  server !!! 12 101
What are the purpose of ESXi local storage usage ? 5 116
Run Server 2012 on PowerEdge 2950 13 81
Requirements: root access via SSH, telnet, or other.. Alternately, access from the server administrator to run a counter-strike server, and the proper access rights to do so. Enough free disk space (and allowed to use this much, eg disk quota): 6…
INTRODUCTION The purpose of this document is to demonstrate the Installation and configuration, of the HP EVA 4400 SAN Storage. The name , IP and the WWN ID’s used here are not the real ones. ABOUT THE STORAGE For most of you reading this, you …
Nobody understands Phishing better than an anti-spam company. That’s why we are providing Phishing Awareness Training to our customers. According to a report by Verizon, only 3% of targeted users report malicious emails to management. With compan…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question