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Forum Newbie
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Last Login: Wednesday, September 19, 2007 11:59 AM
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Is it possible to use VSA technology to enable VMotion an DRS on VMware I3 servers with directly attached storage arrays?
If possible, how would the VSA I/O performance compare to 1G iSCSI? 10G iSCSI?
Regards,
Tony F.
Regards,
Tony
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Supreme Being
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Last Login: Yesterday @ 3:37 PM
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| Possible? That is exactly one of the use cases the VSA was created for. Not only can it enable that but it can do so with full, automatic, redundancy. There are other virtual appliances that could technically enable HA, DRS, VMotion, and VCB using internal disk storage, but none of them can cluster many together to create larger, faster, disk pools and replicate data automatically for data high availability. Also I don't think any of them have quite the feature set SAN/iQ does. As far as performance... There is an entire forum section intended to help answer that. I'll attempt to answer though by saying random IOPS are 90 to 100% compared to hardware based SANs but bandwidth is 60 to 80% because of the use of so much virtual network infrastructure. That is a HUGE oversimplification though. VSAs are not intended to be a performance leader in iSCSI SANs, they are meant to do things you can't/won't do/afford with physical SANs. Those are about as short a statements I can make about those questions. For full info / marketing go to http://www.lefthandnetworks.com/campaigns/vsa.php
Adam C
Product Manager
LeftHand Networks
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Junior Member
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Last Login: Sunday, July 20, 2008 4:31 PM
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Hi TonyF
In regard to your question.
If the context is that you are trying to achive Vmotion, DRS and HA without purchasing the VMware Licenses using;
Multiple (InterConnected) DAS eg; FC SAN and SAN switch
Multiple (Seperate) Physical Hosts All connected to a "totally" seperate iSCSI VSA storage network. (dual port)
With VSA appliances loaded on those hosts.
It is possible but you would need to know your scripting and be very careful.
When I have finished, (some time away, as I am migrating 2 large enterprises to V3). I will post the scripts here if you want, but you will still have to buy the products fom LH and Emboot.
Check out the PXE/iSCSI post information from BootfromSAN under 1001 uses in this Forum, it is based on Emboot and Lefthand Networks and yes it works "everytime".
Terry
Reality is defined by the physical universe and your mind - "Its the second one that varies" :-)
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