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Host-, backplane- and bus-based RAID?

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The Question is:

 
In the OpenVMS base OS direction .ppt file, it notes:
 
In early 2002, OpenVMS will support the new Smart-Array backplane RAID solution
 being supported by AlphaServers (Ramanujan).
 
I'm just curious: is this controller the 52xx controller I know and love in my
 ML servers, the KZPCC, or a yet-to-be-released controller perhaps following
 the 52xx series?
 
(I'm curious because there's a real hole is the Alpha line re: VMS without a
 high-performance backplane RAID controller.  The 5204 has been a godsend in my
 ML530 running Win2K!)
 
thanks

The Answer is :

 
  Backplane RAID does not particularly lend itself to shared-resources
  nor multi-site clustering, features that are not commonly found on and
  not commonly used on other platforms -- accordingly, OpenVMS support
  presently typically targets host-based and bus-based RAID.
 
  The "Ramanujan" project resulted in the KZPDC series backplane RAID
  controller, with driver support in OpenVMS V7.3-1 and later.
 


  

     
     
answer written or last revised on ( 13-NOV-2002 )

     
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