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
Solved

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

Posted on 2008-06-23
11
568 Views
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.  
0
Comment
Question by:sheahomes
  • 4
  • 3
11 Comments
 
LVL 14

Expert Comment

by:cuziyq
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?
0
 
LVL 3

Expert Comment

by:jhoop2002
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.
0
 

Author Comment

by:sheahomes
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.
0
PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

 
LVL 3

Expert Comment

by:jhoop2002
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.
0
 

Author Comment

by:sheahomes
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.
0
 
LVL 3

Expert Comment

by:jhoop2002
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.
0
 

Accepted Solution

by:
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.
0
 
LVL 3

Expert Comment

by:jhoop2002
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.
0

Featured Post

Connect further...control easier

With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.

Question has a verified solution.

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

The 6120xp switches seem to have a bug when you create a fiber port channel when you have a UCS fabric interconnects talking to them.  If you follow the Cisco guide for the UCS, the FC Port channel will never come up and it will say that there are n…
Hyper-convergence systems have taken the IT world by storm and have quickly started to change our point of view of how the data center should and could be architected. In this article, I’ll explain the benefits of employing a hyper-converged system …
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…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

791 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