- Community Home
- >
- Storage
- >
- Midrange and Enterprise Storage
- >
- StoreVirtual Storage
- >
- Queue Depth Total Explanation
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-15-2011 05:02 PM
12-15-2011 05:02 PM
Queue Depth Total Explanation
Hello,
I have a P4500 G1 4-node multi-site cluster.
I am trying to find where a performance bottleneck is for my backup process.
I use the P4500 for iSCSI storage from both VMware and Microsoft Windows
None of the network connections look to be more than about 20% utilised, so now I'm looking at the storage.
Looking at the Queue Depth Total (QDT) count, I don't think I understand what it is telling me:
If I select the Cluster, then the QDT is 36,830 (current, max and average are about the same)
but if I select to see each node, then QDT has a max of 6 across all the nodes (actual maximums are: 4, 5, 1, 6)
So why would the cluster value be crazy-high, when each node is perfectly reasonable?
Thanks for any tips,
N
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-15-2011 08:51 PM
12-15-2011 08:51 PM
Re: Queue Depth Total Explanation
This is an known issue with and older version of the CMC, it is only cosmetic as when you did the individual nodes it showed normail values. Update the CMC and see if the cluster values = the sum of the individual nodes.
The bug was in one of the first releases of the CMC.
Normal queue depth totals are 2 x # of disks in in the cluser for SAS and 1 x # disk in the cluster for sata.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-19-2011 08:48 AM
12-19-2011 08:48 AM
Re: Queue Depth Total Explanation
Emilo is right, that is a bug in the CMC. Get the latest version, it is backwards compatible. The number should be pretty low. Tell us more about your setup. Are you using the DSM for MPIO? What is your IOPS cluster wide?
Do you have sata/mdl sas/sas disks?