[mod.computers.vax] HSC CONTROLLER

dorosz%si01.DECnet@esdvax.UUCP.UUCP (02/25/87)

 
Let's suppose we have a single CPU VAX machine (785,8600,etc..).
This machine is going to run a Database administrative package.
This package is going to rely on heavy DISK I/O.
Will there be significant performance differences if this machine has an
HSC controller?
Does it make sense for the type of application that the machine will be subject
to, to have the HSC controller?
 
Any help will be greatly appreciated as always.   thanks...
 
Scott Marshall
systems manager
Trinity College, CT.
BITNET: TRIN7@TRINCC
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We have several 8600's and 780's running HSC50 controllers
both in a clustered and non-clustered environment with Oracle being the 
biggest application, We have one 8600 that  was upgraded from a UDA50 to 
and HSC and we experienced a significant performance increase.  If you're 
willing to consider equipment other than DEC, you might also want to look 
at the System Industries SI Link and disc cache processor.  I don't have 
any experiences with either of these, but the specs look good and it 
should be a viable alternative to the HSC.

                                       Dave Dorosz
                                       Hanscom AFB
                                       Dorosz@esdvax.arpa
 
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