I will take the action item to press HP for more releasable detailed
information as to their objections to the technology.  I would also like to
hear from anybody in the 3000 world using SSA.  Clearly, SSA technology
would be very welcome from a performance perspective.

Bill Lancaster

At 08:57 AM 3/18/98 -0700, John Clogg wrote:
>David,
>This is good to hear.  I just ordered 288 GB of SSA disks for our HP3000.
>Some folks at HP tried to scare me away from it, implying that diagnostics
>didn't work, etc.  When I asked for specific, technical information that
>might dissuade me from the SSA purchase the silence was deafening.
>
>>>> "David A. Lethe" <[log in to unmask]> 03/17/98 09:06pm >>>
>On Tue, 17 Mar 1998 10:41:51 -0500, Rick Tomlinson <[log in to unmask]>
>wrote:
>
>>Has anyone ever used or heard of anyone using mirrored EMC
>Symmetrix
>>drives for the system volume set?  What other alternatives are there for
>>adding this type of redundancy?
>>
>>
>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>Rick Tomlinson       [log in to unmask]      (336) 758-5811
>>Information Systems                 fax        (336) 758-7127
>>Wake Forest University             www.wfu.edu/~rick
>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Look at IBM's SSA for the HP3000.  It is typically several HUNDRED
>PERCENT faster, at about half the price.  Hardware mirroring is in
>beta now. All the usual features you would expect, including:
> - hotswap
> - multiple initator support (with limitations)
> - RAID capability
> - Works with HP's predictive & other diagnostics
> - priced around 50 cents/MB.
> - very high density .. almost a terabyte in a HP 19" rack
> - no single point of failure (redundant paths, cables, power)
> - add, delete, reconfigure, mount them to different systems without a
>reboot!!! (requries 5.5)
>  yada yada yada
>
>I know, I was the project leader  on the team that ported it to the
>HP3K I contracted Michael Hensely with Allegro to port the diagnostic
>routine to MPE/iX ... So you know it was done right!
>
>David
>http://www.compass-corp.com
>972-208-3660
>
>