- Community Home
- >
- Storage
- >
- Midrange and Enterprise Storage
- >
- StoreVirtual Storage
- >
- Multi-site SAN with only 10MB connection
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
12-26-2011 01:28 AM
12-26-2011 01:28 AM
Hi Guys,
I need a little help,
I have 2 P4500 with total 4 nodes, 2 nodes at main site and 2 at DR site, I need to make a replication between main and DR site, and the connection is only one link with 10MB between the sites
so what is the best option here:
Multisite SAN configuration with Raid-10 (synchronous): will it be ok to use 10MB network link between the 2 sites? - more preferred
or make a remote copy (asynchronous), can we make the remote copy every 10min, i tried but it did not work, any idea how can make it work - if it is possible?
regards,
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-26-2011 05:06 AM - edited 12-26-2011 05:08 AM
12-26-2011 05:06 AM - edited 12-26-2011 05:08 AM
Solutiona multisite-san with only 10 MBit bandwith would be incredibly slow on writes and during resync, not to mention the response time, which would probably be too high for a multisite-san. I'd go for the replication.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-26-2011 11:47 AM
12-26-2011 11:47 AM
Re: Multi-site SAN with only 10MB connection
Hi,
This will not work (well)... You shoud count for 50 MBps per 2 nodes... In your case I should go for a 2Gbps connection...
So I would go for the asynchronous solution...
Kr,
Bart
If my post was useful, clik on my KUDOS! "White Star" !
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
12-28-2011 10:43 PM
12-28-2011 10:43 PM
Re: Multi-site SAN with only 10MB connection
Thank you Guys,
i manage to do the async already, but 10min will not work with P4000, you need to use 30min as a minimum for each snapshot taken.
Thank you Bart :) ..
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
01-03-2012 01:01 PM
01-03-2012 01:01 PM
Re: Multi-site SAN with only 10MB connection
The other guys are right about why not to do it, but I thought I would explain in detail a little more. When setup in multi-site, if you use network raid 10, we have to write the block to both sides. We don't tell the server the block is completed writing until both sides have it. You could write it to the local side very quickly, but if the latency to the other site is over 2ms, it would start to slow everything down, even on the local side. Latency is sometimes more of a barrier than bandwidth.