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Re: Apple Disk Server Beta. Need testers.



On 1/5/2012 5:37 PM, Egan Ford wrote:
On Jan 5, 2:46 pm, David Schmidt<schmi...@my-deja.com>  wrote:
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.

1.  Turn after download, but before inflate
2.  If inflate fails, turn off before error message
3.  If inflate ok, write starts, end of write should power down motor,
right?

Correct.

I am thinking that this will save about 5 seconds out of 3 minutes.
It may not be worth it.

Yeah, but it's oh-so-satisfying not to have any latency. Don't you hate it when you hear the drive start up, wait, then finally start stepping?