- Community Home
- >
- Storage
- >
- Midrange and Enterprise Storage
- >
- HPE 3PAR StoreServ Storage
- >
- big IO Size in 3par
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
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
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
тАО02-17-2021 05:33 AM
тАО02-17-2021 05:33 AM
hello cominity, checking storage performance in my work i saw a VV which has high BW but IO size is very large (max 750KB) normally when i see VV with 400KB service time is high but in in this case the service time of this VV has between 60 and 100 ms ... the disk for this storage is FC and NL ... is this behavior normal? is it possible to control these packages?
the Storage is a HP_3PAR 7400 with firmware version 3.2.2 (MU6)
grafic
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-17-2021 06:48 AM
тАО02-17-2021 06:48 AM
Re: big IO Size in 3par
Hello. "Is it normal?" Having no idea about what applications are running on the volume, I can only assume "yes". Something occasionally uses huge IOs.
Lots of IOs x big IO size = high throughput.
Not sure what might be using that large an IO size, but it's driven by the application. You need to find out what the application is and what it is doing. Then you can figure out if it can do it at a different time of day.
I'd also suggest considering adding additional FC or even SSD drives. However being a 7400, you really should start looking at moving to something newer such as an HPE Nimble or HPE Primera. Before the 7400 goes End-of-Support.
Note: While I am an HPE Employee, all of my comments (whether noted or not), are my own and are not any official representation of the company
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО02-17-2021 07:29 AM
тАО02-17-2021 07:29 AM
SolutionAs per the graph it seems you are running read intensive IO more and that's why read Io size high compare to write IO. You need to control IO size at the Host Operating system and application level only.
Please note 3PAR process data in 16KB pages only. So in order to get good performance it's always good to get 8KB or 16KB IO size from Host.
As a starting you can set 128KB or 256KB at the Host end and check your application performance. Accordingly you can adjust or tune it further.
Hope this helps!
Regards
Subhajit
I am an HPE employee
If you feel this was helpful please click the KUDOS! thumb below!
*******************************************************************
I work for HPE