ibtaya
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HP Storage Advice Needed
I've seen a product by Dell's EMC celeron (not positive on the spelling). It does a million and a half things but wondering if I could get into a couple HP san's with the features I need for cheaper.
I have site A and site B. Connected through a DS3 10Mb. Currently I have a VMware installation at both locations because of ownership reasons, but I do have a go ahead to combine the storage space. here's my issue, I have two separate Oracle databases at each site running the same software databases. I would like to cluster the sans at each location so that this oracle database can be combined and both sides are read/write to the same database.
BUT .......
I don't know what products that HP and lefthand are needed to make this happen. Can I get a storage expert to give the VCP a hand.
I have site A and site B. Connected through a DS3 10Mb. Currently I have a VMware installation at both locations because of ownership reasons, but I do have a go ahead to combine the storage space. here's my issue, I have two separate Oracle databases at each site running the same software databases. I would like to cluster the sans at each location so that this oracle database can be combined and both sides are read/write to the same database.
BUT .......
I don't know what products that HP and lefthand are needed to make this happen. Can I get a storage expert to give the VCP a hand.
Don't think you can do what you want with any SAN storage device. Whilst you can replicate LUNs from one site to another the replicated copy is normally read-only, even whan manufacturers claim two way replication it's normally just two seperate one-way replications on two seperate LUNs.
ASKER
I've seen the EMC product do it over a bonded t1 with my own eyes. I know that Lefthand/HP is far superior in their technology.
Well, if two Oracle servers can access the same file DB at the same time that's down to Oracle, most DBs would be corrupted that way. To have two LeftHand iSCSI nodes replicating with both having the same LUN active at the same time they have to be on a single site, that site can be stretched over a WAN link if the latency is not too much but both have to be on same subnet and in the case of syncronous replication the write complete reply doesn't come until the data is committed on both nodes.
ASKER
andyalder, can you clarify if this is possible or not?
No, I can't clarify because I'm not sure what has been demonstrated to you. What you need to do is get an EMC expert to explain (to me) what was shown to you in the EMC demo, then I can confirm whether LeftHand can also do this or not.
If you can get meyersd for example to explain what you saw we can work out what other kit can also do that.
If you can get meyersd for example to explain what you saw we can work out what other kit can also do that.
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ASKER
Thanks, after reading more you are right. EMC is leading the way on this technology.