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Ex2007 SAN or DAS : You decide....

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This will be emotive.

Exchange Server 2007 enables large accounts to replace SAN with DAS solutions and still maintain high availability standards. With 64 bit and lower IOPS, customers have the ability to go for lower cost storage technology. CCR enables high-availability with DAS. Disk-based backup solutions can enable IT organizations to eliminate tape backups and achieve associated cost savings.
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Comments

  • Anonymous
    January 01, 2003
    It shouldn't be emotive at all. There are no right answers and no wrong ones. Where a company has a strategic goal to provide a leveraged network based storage platform the use of Exchange connected to a SAN is a no-brainer. Where there is no SAN and no real impetus or business requirement to deploy one then Exchange on DAS is the only option. Exchange 2007 has made enormous improvements and optimisations that make running on a DAS platform a viable solution. Exchange 2007, DAS, DPM (Or AppAssure Replay or Mimosa Nearpoint etc.) makes a highly resilient system even more so. Exchange 2007, NetApp (or Compellent, EMC, 3Par etc) make a good case together because the storage platform alone looks after the VSS backups. It is plain that there are some areas within the Microsoft Corporation that have a problem "getting" storage, storage vendors and the way they operate. That's not the same across the board however; the DPM guys get it big, the Exchange guys - certainly some Redmond based people - are a little behind the curve. My personal opinion is that centralised and replicated storage offers enterprise benefits over DAS. I'd suggest a customer implemented a SAN if they had the infrastructure and other applications that would make it a commercially viable, cost effective solution. Given that the way forward is virtualisation you might well find that many more Exchange customers are using a SAN because that's where their operating system is. Remember, with the advent of Hyper-V, Microsoft are about to "find/invent" enterprise virtualisation so a twin track approach is the best way forward. It's not up for a decision really, is it. Messaging and infrastructure designs will be shaped by overall business requirements. SANs and DAS will play their part depending on how the business chooses to deploy and utilise their technology. As a big proponent and evangelist of the SAN and virtualisation, with way too many intrests to declare, I should now go sit in a darkened room and ponder my sudden attack of balance.