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Re: Apple Disk Server Beta. Need testers.



On 1/5/2012 4:39 PM, Egan Ford wrote:
On Jan 5, 2:21 pm, "Michael J. Mahon"<mjma...@aol.com>  wrote:
David Schmidt wrote:
Oh, one other thing I forgot to mention: one speedup that ADT client
does (but not ADTPro - too lazy so far) is it starts the drive motor a
little while before it is needed.  That avoids the spin-up delay once a
full buffer is ready to write and lets you start writing much more
quickly.  So, during inflate, if there's a point where you're
"almost-done," one loop left to go or whatever, hit the motoron switch.

For reliable operation, the motor should be started about a second
before the disk is required to be up to speed.

-michael

NadaNet 3.1 for Apple II parallel computing!
Home page:  http://home.comcast.net/~mjmahon/

"The wastebasket is our most important design
tool--and it's seriously underused."

What about 10 seconds before?  Is more OK?

Well, yeah, you could just leave the blasted thing running... but you'd better be able to turn it back off again in case of failure.

Those are some of the questions that remain for me why I haven't done it myself yet... what if things get really slow at some point - or retries start happening? What if a reply never comes?