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Creating a DR and Business continuity with LeftHand

bublik
Valued Contributor

Creating a DR and Business continuity with LeftHand

Let’s say that the WAN link latency is acceptable, is it possible to accomplish with LeftHand?

Hi All,

I would like to create a read/write architecture in two geographically different sites.

Both sites will have combination of SQL and Web applications. The SQL database should be in sync at all times and I would like to test the web applications at any time in both datacenters.

 

2 REPLIES

Re: Creating a DR and Business continuity with LeftHand

Hi,

 

I dont't think you can create a synchronized SQL database using a MultiSite SAN. Why don't you use the higher level techniques of your SQL server?

 

Thomas 

Bart_Heungens
Honored Contributor

Re: Creating a DR and Business continuity with LeftHand

This is indeed correct.

 

If you have 2ms or less latency between the sites you can make a synchronous replication between the sites for the data on P4000 level... However the SQL instance will only run on 1 site... You can enable MS clustering eventually but that is still active/passive...

 

If you want 2 SQL servers running at the same time on the same data on the 2 sites, you will need to use SQL functionality...

 

 

Kr,

Bart

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