- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- Disk Enclosures
- >
- EVA I/O Problem
Disk Enclosures
1747993
Members
5315
Online
108756
Solutions
Forums
Categories
Company
Local Language
юдл
back
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
юдл
back
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
Blogs
Information
Community
Resources
Community Language
Language
Forums
Blogs
Topic Options
- 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
тАО01-17-2005 07:53 PM
тАО01-17-2005 07:53 PM
EVA I/O Problem
The SAN architecture following:
i have two servers SuperDome 64way and Superdome 16way and two disc storages:
1. EVA- 5000 with 57 discs (it's usable only for database)
2. Va-7400 (only for other applications)
So i have problems with I/O on Eva.
it has 4 LUN's, each is 250Gb
Secure Path is adjusted on 2 path for each LUN, 8 path in overall. The Balance Policy is Round Robin.
How can i solve this problem?
i have two servers SuperDome 64way and Superdome 16way and two disc storages:
1. EVA- 5000 with 57 discs (it's usable only for database)
2. Va-7400 (only for other applications)
So i have problems with I/O on Eva.
it has 4 LUN's, each is 250Gb
Secure Path is adjusted on 2 path for each LUN, 8 path in overall. The Balance Policy is Round Robin.
How can i solve this problem?
3 REPLIES 3
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО01-18-2005 04:54 AM
тАО01-18-2005 04:54 AM
Re: EVA I/O Problem
"this problem?" ??
I don't see anything wrong from your description except Secure Path should see 4 paths to a virtual disk. Due to the way the EVA works, you can do I/O to two paths (those that go to the controller that is owning the virtual disk behind the LUN), not 4. That is not a 'problem' - that is just how the EVA works.
The VA works nearly similar to the EVA except that a single controller owns an entire redundancy group (RG) and all LUNs contained. You can do I/O through the other controller, but he will re-route the I/O over an internal bus. It is still the owning controller that does the I/O to the disks.
Look up the word "performance path" in the user guide.
I don't see anything wrong from your description except Secure Path should see 4 paths to a virtual disk. Due to the way the EVA works, you can do I/O to two paths (those that go to the controller that is owning the virtual disk behind the LUN), not 4. That is not a 'problem' - that is just how the EVA works.
The VA works nearly similar to the EVA except that a single controller owns an entire redundancy group (RG) and all LUNs contained. You can do I/O through the other controller, but he will re-route the I/O over an internal bus. It is still the owning controller that does the I/O to the disks.
Look up the word "performance path" in the user guide.
.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-26-2007 04:55 AM
тАО05-26-2007 04:55 AM
Re: EVA I/O Problem
Dear All,
I also need same type of help, i am having two set of one SMA and EVA 3000. i require a script which can shutdown my EVA when i require. very urgent for me, please help me
Thanks & Regards
Prabhu
I also need same type of help, i am having two set of one SMA and EVA 3000. i require a script which can shutdown my EVA when i require. very urgent for me, please help me
Thanks & Regards
Prabhu
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-26-2007 05:20 AM
тАО05-26-2007 05:20 AM
Re: EVA I/O Problem
Prabhu,
That's a completely different question !
Start a new thread of your own rather than tagging onto the end of a two year old, unrelated one !
Cheers,
Rob
That's a completely different question !
Start a new thread of your own rather than tagging onto the end of a two year old, unrelated one !
Cheers,
Rob
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.
News and Events
Support
© Copyright 2024 Hewlett Packard Enterprise Development LP