- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- Disk Enclosures
- >
- Re: MSA500 clustering & high availability
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
тАО10-13-2004 05:16 AM
тАО10-13-2004 05:16 AM
Goal: To have a RAID 1 (mirror) configuration with access to the same data from two servers.
The customer has purchased a second G2 controller. Each G2 has two ports. I believe that perhaps the customer should have purchased the high-availability kit. But, that looks like it is designed primarily to allow one server to have two paths of access to the data. We want two servers to each have one path to data.
It appears the customer has it currenly configured to where one server sees some of the drives, while the other server sees the other drives. As noted, we want both servers to see the same drives. Do they need the high availability kit and/or the multipath software to accomplish this? Or do they have everything they need and simply don't have it configured correctly? Thanks.
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 08:39 AM
тАО10-13-2004 08:39 AM
Re: MSA500 clustering & high availability
What you are describing is not at the hardware level. You could present the same logical drive on the MSA to both systems. You will corrupt the data almost immediately as you will have two different systems writing to the disk at the same time in the same space. You need a third party solution to achieve what you are looking for.
Polyserve has a solution that you are looking for. http://www.polyserve.com/
Ciao,
Greg
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 09:03 AM
тАО10-13-2004 09:03 AM
Re: MSA500 clustering & high availability
We have used the MSA1000, a Fibre-Channel solution product for this purpose before. This is just the first time that we have tried to use the MSA500--as far as I know.
I had thought that the dual port capability of the G2 would provide this by itself. I think the customer may have simply not configured it correctly. As it is, the two ports are not seeing the same drives. I think the customer is simply not configuring it correctly.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 09:20 AM
тАО10-13-2004 09:20 AM
Re: MSA500 clustering & high availability
The two servers need to be in a clustered configuration. Then one node would be active and one standby. Cluster service manages who can talk to the shared logical drive on the MSA.
Ciao,
Greg
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 09:30 AM
тАО10-13-2004 09:30 AM
Re: MSA500 clustering & high availability
When you say the nodes need to be in a "cluster configuration", the question is, what does the customer need to implement a "custer configuration"? Does that require the High Availability kit?
You had suggested a third party product, but I do not think this is necessary. Our database *already* has hot/standy capability built in. It will *already* insure that only one computer is reading and writing to the RAID. We do this type of thing a lot, we just haven't used the MSA500. All I need to do is to be able to see the same disk array from two different ports. I would think the G2 would do this already, without needing anything else at all. I wouldn't even think that I would need the High-Availability kit, but I could be wrong.
I guess I'm just not understanding why the customer reports not seeing the same thing from the two ports.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 09:46 AM
тАО10-13-2004 09:46 AM
Re: MSA500 clustering & high availability
The third party product I had mentioned at first was for having two standalone active systems sharing the same logical drive. You don't have that scenario. If you already have standby and active mode available, what you need to verify is SSP. On the MSA1000, for a cluster you need to present LD X to both HBA's and the same would apply to the MSA500.
Is SSP enabled?
Ciao,
Greg
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 09:56 AM
тАО10-13-2004 09:56 AM
Re: MSA500 clustering & high availability
And while HP's site has specifications, they don't have the complete manual to download. Or at least I couldn't find it. So, I don't know what "SSP" is. But, I can ask the customer.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 10:06 AM
тАО10-13-2004 10:06 AM
Re: MSA500 clustering & high availability
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 10:22 AM
тАО10-13-2004 10:22 AM
Re: MSA500 clustering & high availability
SSP is "Selective Storage Presentation" In the ACU, highlight the Array controller, on the right hand side you should see Selective storage presentation. If it is enabled, only the operating system for the HBA which is presented to LD0 will see that. Go into the ACU and enable SSP for the second array controller, then you will see the same logical drive.
Ciao,
Greg
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО10-13-2004 10:23 AM