+ Post New Thread
Results 1 to 2 of 2
Thin Client and Virtual Machines Thread, VMWARE How do I diagnose a disk latency issue? in Technical; I'm on Vmware esxi5.1 using vsphere. I'm getting the event log that device (naa.600xxx) i/o latency has an increaded average. ...
  1. #1

    Join Date
    Jan 2008
    Location
    South West
    Posts
    1,822
    Thank Post
    217
    Thanked 268 Times in 217 Posts
    Rep Power
    68

    VMWARE How do I diagnose a disk latency issue?

    I'm on Vmware esxi5.1 using vsphere. I'm getting the event log that device (naa.600xxx) i/o latency has an increaded average. The device in question is the SATA storage on my SAN.

    The setup is that my fast lun (lun0) is on my 15K SAS drives and that is where all the VM operating systems (c: drives) live and the exchange database. The SATA storage (lun1&2)is where I keep the VMs data (file shares).

    The SATA storage is divided into 2 luns and is used by 6 servers. How should I diagnose what VM is causing the issue? I cant find a corrolation between scheduled tasks or daily usage. The performance logs show disk activity but as a whole not by lun.

    How do I diagnose?

  2. #2

    Join Date
    Oct 2005
    Posts
    853
    Thank Post
    51
    Thanked 116 Times in 106 Posts
    Rep Power
    75
    You should be able to look at the historical performance data in the vSphere client for each VM and narrow it down that way - look at the disk performance and see where the highest latency is.

SHARE:
+ Post New Thread

Similar Threads

  1. Replies: 4
    Last Post: 19th July 2012, 09:31 AM
  2. How do I configure VMWare Fusion to let virtual machines access USB drives?
    By cnitpro in forum Thin Client and Virtual Machines
    Replies: 0
    Last Post: 13th January 2012, 08:54 AM
  3. Replies: 11
    Last Post: 6th December 2007, 10:48 AM
  4. Replies: 10
    Last Post: 13th September 2007, 01:38 PM
  5. Disk to Disk to Tape backup. How do you do it?
    By trekmad in forum How do you do....it?
    Replies: 0
    Last Post: 30th May 2007, 07:49 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •