[SunRescue] prestoserv boards

[jeff borisch]

Hi,

are these things worth anything?

I got two in some ss2's and doubt I'll ever use them.

I think I saw a page with them for $800 new.
<http://www.eli.com/sunscsi.htm>
Surely they must be smoking something...

what would be a good trade?

best,
jeffrey


> 370-1401        Prestoserve NFS accelertor SBus
> Nonvolatile RAM and logic used to cache NFS writes (which are
> otherwise synchronous and hence slow).
> 
> With component side up and SBus connector away from you, there
> are two batteries, each with a fuse, and a switch block toward
> the near side. The batteries are not field-replaceable. On the
> back edge is an LED and a "Live Test Switch". When this button
> is pressed, the LED lights up if there is cached data in the
> onboard nonvolatile memory.
> 
> SW1 (in near midle)
> BAT   enables battery backup. The Prestoserve software will
> not initialize and NFS writes will not be cached unless
> SW1 is in this position.
> 5V    disables battery backup. Cached data will be lost if the
> switch is set to 5V for more than five minutes. Use
> this setting to conserve battery power when the board
> is not installed and whatever data is currently present
> does not need to be preserved.
> 
> Note that at least SunOS 4.1.1 with Prestoserve 2.3 software is
> required. Solaris 2.x requires Prestoserve 2.4. The Sun 4/6xx
> systems require at least Solaris 1.0.1 (SunOS 4.1.2), and only
> support one Prestoserve controller (either VME or SBus) in the
> system. The SBus Prestoserve accelerates NFS writes to disks
> connected to either SBus or VME disk controllers.
> 
> The SPARCstation 10 supports an onboard NVSIMM or the SBus
> Prestoserve controller.
> 
> Power requirements are +5V @ 0.8A.
> 
> 
> -- 
> 



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