[Freedos-user] UIDE vs drive power management spin down timers

Eric et al, Johnson Lam has done his usual QUICK posting of my latest UIDE/UIDEJR (since 2004 he has been THE BEST "partner" in my driver work!) in the 14-May-2011 DRIVERS.ZIP file, now available on his website at -- The 14-May-2011 UIDE and UIDEJR now

Re: [Freedos-user] UIDE vs drive power management spin down timers

Eric, > I have not yet seen a desktop BIOS which implements this, alas [disk > spin-down timeouts, etc.]. I do have an adware DOS tool for it, > showing a splash screen for a BBS or similar when you run it and of > course bigger than needed, but free. Desktop BIOS routines are usually not-inter

Re: [Freedos-user] Interesting Chinese (english) DOS stuff plus system programmer book for dos.

That is a very good link ... Thank You. Regards, Ferry --- On Sat, 5/14/11, Alvin P. Schmitt wrote: From: Alvin P. Schmitt Subject: [Freedos-user] Interesting Chinese (english) DOS stuff plus system programmer book for dos. To: freedos-user@lists.sourceforge.net Date: Saturday, May 14, 2011,

Re: [Freedos-user] UIDE vs drive power management spin down timers

Jack, >> There is not much to "do" there, as you only tell the disk once >> and then the disk itself does the rest. > > "Amen!", so let the user handle this thru the BIOS setup routines > and let the BIOS "tell the disk" what to do during system "boot"! > BIOS vendors have many more programmers

[Freedos-user] Interesting Chinese (english) DOS stuff plus system programmer book for dos.

http://johnson.tmfc.net/dos/index.html -- Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help

Re: [Freedos-user] UIDE vs drive power management spin down timers

Eric, >> ... My problem is: I am not-interested in being "the one" who >> does power management. If DOS or the BIOS wants to save power >> thru putting disks into "stand-by" mode, let them do it... > > There is not much to "do" there, as you only tell the disk once > and then the disk itself d

Re: [Freedos-user] UIDE vs drive power management spin down timers

Jack, > I read through and understood all your comments about hard-disk > power management, etc. > > My problem is: I am not-interested in being "the one" who does > power management. If DOS or the BIOS wants to save power thru > putting disks into "stand-by" mode, let them do it... There is

Re: [Freedos-user] UIDE vs drive power management spin down timers

Eric, I read through and understood all your comments about hard-disk power management, etc. My problem is: I am not-interested in being "the one" who does power management. If DOS or the BIOS wants to save power thru putting disks into "stand-by" mode, let them do it. UIDE is a disk "I-O d

Re: [Freedos-user] Basic question on UIDE

> All this talk about UIDE prompted me to investigate this tool. > It looks interesting. How does the caching work for disk writes? UIDE uses "Write Through" caching, meaning all output data is written to disk immediately. For SATA/IDE disks handled internally by UIDE, if data fits in one cac

Re: [Freedos-user] if not exist MD XXX

Hi Eric, > As far as I remember, the DOS findfirst API is supposed to find > character devices (such as NUL) in any (existing) directory, so > this would depend more on DOS than on COMMAND, but I am not sure. Without any further investigation, I'd say that's part of it. However, aside from the

Re: [Freedos-user] if not exist MD XXX

Hi Christian, >> if not exist mydir/nul md mydir >> >> Doesn't work on XP (I think?), but that's the typical "DOS" way. > > This kept bothering me for some reason, so I checked now. > > It appears to work just fine on MSW NT command lines, executing the > command after "if not exist dir\nul"

Re: [Freedos-user] Basic question on UIDE

Hi Cordata, > All this talk about UIDE prompted me to investigate this tool. It > looks interesting. How does the caching work for disk writes? I > assume that when the cache is full the next sector read in will cause > the oldest sector to be written out? Neither UIDE nor lbacache nor cdrcach

[Freedos-user] UIDE vs drive power management spin down timers

Jack, [others: this is a bit long/technical, the summary is that it is both easy and safe to use shallow drive power management.] > The problem is "WHERE" does UIDE or any other driver wait for > a sleeping, i.e. "stand-by" hard disk to awaken again?? The > ATA specs do not make this clear.

Re: [Freedos-user] if not exist MD XXX

Hey, > if not exist mydir/nul md mydir > > Doesn't work on XP (I think?), but that's the typical "DOS" way. This kept bothering me for some reason, so I checked now. It appears to work just fine on MSW NT command lines, executing the command after "if not exist dir\nul" if and only if that dir