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- SpinD™ is Copyright ©1992 Bill Steinberg. All Rights Reserved. SpinD is free. This document
- describes version 1.0 of SpinD. If you distribute SpinD, it must be free, and you must include this
- documentation.
-
- SpinD is a small FKey that spins down the internal hard drive in Macs that support that function. In
- Macs that don't support drive spin down, the FKey just beeps and exits.
-
- SpinD will take just under 200 bytes of your System Heap. It's loaded when your System File opens (if
- you've installed the FKey in your System File). If you load the FKey via Suitcase, it will be loaded when
- Suitcase opens the SpinD.FKey file.
-
- SpinD.FKey should work on all the PowerBooks (100,140,170), and I suspect on the Apple Portable.
-
- SpinD.FKey comes as a ResEdit document. The FKey is set to 0, but it can be set to anything you like.
- Please leave the resource attributes as they are (System Heap and PreLoad ONLY). Note that as of
- System 7, FKeys are officially a no-no (aka reserved by Apple), which is why there is no nice and easy
- Apple supplied way to deal with FKeys. I use ResEdit... If you don't know what FKeys are, or what
- ResEdit is, drop me a note on CompuServe (76703,1027), and I'll steer you to the correct forum and
- section to learn.
-
- Things to know:
-
- The whole idea (for me, ie why I wrote SpinD) came afterI had a taste of my PB100 (8/20 then, now
- 8/80) lasting over three hours on a charge the second or third day I had it. It took me almost a month to
- figure out how to get 3+ hours on a charge. Though the backlight does consume the most power, the
- drive seems to run a close second, when it's spinning. If you keep the backlight down a bit, and you try
- to keep your drive spun down most of the time, you can get 3 hours out of your 100 easily, and
- maximize the time on your 140/170 too (though, since I don't have one of them, I can't give you
- estimates).
-
- Now, the SpinD FKey is only a small part of "try to keep your drive spun down most of the time." You
- do NOT want to spin the drive down and have it spin up again in 10 seconds. The drive consumes about 4
- times the power to Spin Up than to just keep spinning. It takes about 5 or so seconds for a room temp
- drive (the 20 or 80 in my 100, anyway) to spin up. I use the rule "If I think I'm going to hit the drive
- in the next minute, I won't manually spin down the drive."
-
- You want to set the defaults in the Portable CDCev correctly first. Correctly for me may be different
- from correctly for you. I have mine set for 2 minutes (drive) and 4 minutes (full sleep). This is one
- half what the default is. I factored in annoyance as well as power consumption in making my choices. It
- is rare that I go 4 minutes without doing anything without engaging sleep myself (via control clicking
- on SuperClock), so I want the computer to sleep if I forget.
-
- I have the luxury of an 8 meg machine. I keep a 2 meg disk cache (Memory CDev). I find this MUCH
- more useful (and safer) than a Ram Disk. By loading in (running) 3 or 4 of my most often used
- applications when I first boot, and using sleep, instead of Shut Down, I have instant access to
- everything, and mostly no disk access. As an example, I almost always have DayMaker [mostly ram
- based], MSWord 4 .0d [set to load itself and the document into memory], CompuServe Navigator [with
- no face files, and set to NOT display faces], and the battery Control Panel open. When I add a bunch of
- appointments to my calendar (DayMaker), I save the file (think safety), and then either sleep the
- machine or spin down the drive. Use the application menu to hide the applications you're not currently
- using. If you have a 2 meg machine, well, you're going to be accessing the drive a lot, and you may not
- have as much need for SpinD...
-
- Bill Steinberg - Mon, Mar 16, 1992
- CompuServe 76703,1027 (Preferred)
- AppleLink X0542
-