RE: Exchange Server Redundancy

  • From: <paul_lemonidis@xxxxxxxxxxx>
  • To: "[ExchangeList]" <exchangelist@xxxxxxxxxxxxx>
  • Date: Tue, 9 Mar 2004 16:20:41 -0000

Hi all

Sorry if I am missing something here but since when is a pure software solution 
that replicates an entire drive going to offer perforamnce anywhere near that 
of a cluster using shared drives. This seems nothing more than a co-standby 
server solution like say Vinca? Rather than a single shared drive it runs huge 
amounts of replciation between dupliacte drives on duplicate servers. I can 
actually see you paying more for an inferior solution from what I have seen so 

Hardware clustering is far more resilient if done correctly but it does come at 
a price, of course. At the end of the day you get what you pay for.


Paul Lemonidis.
  ----- Original Message ----- 
  From: Mulnick, Al 
  To: [ExchangeList] 
  Sent: Tuesday, March 09, 2004 3:23 PM
  Subject: [exchangelist] RE: Exchange Server Redundancy

  I never considered MCS to be more difficult than adding a third-party app.  
Is that all it does?  How does it make the recovery so fast?  How does it check 
for db consistency?  

  From: Tiago de Aviz [mailto:Tiago@xxxxxxxxxxxxxxx] 
  Sent: Tuesday, March 09, 2004 9:17 AM
  To: [ExchangeList]
  Subject: [exchangelist] RE: Exchange Server Redundancy

  It is much simpler because it can be implemented on a single day, it 
replicates data on the bit level, it's a cheap software, and if you want, you 
can user a slower machine or any other machine for redundancy.


  No, while Brightstor is replicating, it doesn't know if the file is a 
database or a Star Wars movie. It's all the same for him.


  Tiago de Aviz


  (41) 340-2363


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  From: Mulnick, Al [mailto:Al.Mulnick@xxxxxxxxxx] 
  Sent: terça-feira, 9 de março de 2004 10:51
  To: [ExchangeList]
  Subject: [exchangelist] RE: Exchange Server Redundancy


  So, really, it's not much different than the MCS solution from Microsoft 
except that a) it's replicating data on the bit level? and b) it's software vs. 
hardware solution?  I'm missing where it saves the time?  It has to ensure that 
the database is consistent right?  Or does it?



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