ghenniga@nmsu.edu (Gary Hennigan) (03/05/91)
After reading the posts about Hyperdisk I went and pulled it off of wuarchive and tried it out. It does work MUCH faster than smartdrv, after using NCACHE I was very disheartened by the poor performance of smartdrv but stuck with it since it was compatible with Windows v3.0. I have a question for those who succesfully use it with windows though: In the WIN3NOTE.TXT it says the Hyperdisk should be installed AFTER himem.sys. I tried this but Hyperdisk comes back and tells me that no extended memory is available, and thus doesn't install. Any clues? Right now I just install it before HIMEM.SYS and it seems to work correctly but I'm not sure if it's in windows compatible mode. And yes I did briefly read through the manual but find it hard to read through 80 pages of text 24 lines at a time and don't have the time or paper to print it out on my little dot-matrix printer. I'm using HYPER386.EXE on a PS/2 55sx (386sx) with 4Mb of extended memory with the command line options "S H CW:1024". Thanks for the help, -- Gary Hennigan +---------------------------------------------------------------------------+ + e-mail: ghenniga@NMSU.Edu, henninsf@maxwel.NMSU.Edu + + Electrical Engineering; PhD Student, Computational Electromagnetics + + Physical Science Laboratory (ASS)istant systems programmer + +---------------------------------------------------------------------------+
yoshida@hpfcso.FC.HP.COM (Stuart Yoshida) (03/07/91)
altman@sbstaff2.cs.sunysb.edu (Jeff Altman) writes: >In article <7450004@hpfcso.FC.HP.COM> yoshida@hpfcso.FC.HP.COM (Stuart Yoshida) >writes: >>altman@sbstaff2.cs.sunysb.edu (Jeff Altman) writes: >>> [...] >>> Hyperdisk is not >>> compatible with all drives. This is because it does not use BIOS calls >>> but instead goes directly to the hardware. >>> -- >>> - Jeff (jaltman@ccmail.sunysb.edu) >>> ---------- >> >> I just talked with the author of HyperDisk, and he said, "Hyperdisk >> uses BIOS calls ONLY. It's funny how rumors get started, isn't it?" >> >> So whatever problems HyperDisk has, it's *NOT* because it goes >> directly to the hardware. It does not circumvent the software >> interface protocols; it definitely uses BIOS calls. >>-- >> Stuart > >To quote p84 of the 2/18/91 PC Week: Discussion about why Power Cache >was given highest rating even though Hyperdsk is faster. "The two products >differed not in their performance, but in the compatibility advantage that >Power Cache Plus offers through its use of DOS-file I/O in lieu of the >device specific BIOS-level commands used by HyperDsk." >-- >- Jeff (jaltman@ccmail.sunysb.edu) >---------- The PCWeek review was pointing out was that HyperDisk *does* use BIOS calls, and therefore is somewhat hardware dependent because not all BIOS code is 100% IBM compatible. BIOS calls don't access the hardware directly, but they *do* act on a lower-level than DOS-file I/O calls. This makes HyperDisk sensitive to different flavors of BIOS and therefore somewhat hardware-dependent as the PCWeek review says. Therefore, even though HyperDisk doesn't access the hardware directly, it uses a low-level protocol (BIOS) that is more prone to hardware dependencies. -- Stuart "Every place around the world it seemed the same Can't hear the rhythm for the drums Everybody wants to look the other way When something wicked this way comes." --Jeremiah Blues by STING UUCP: {hp-sdd, hp-pcd, csu-cs, edison, hplabs}!hpfcla!yoshida Internet: yoshida%hpfcla@hplabs.HP.COM VOICE: (303) 229-2324
ssingh@watserv1.waterloo.edu (Sneaky Sanj) (03/15/91)
Could someone tell me if hyperdisk will work with an adaptec aha1542B
and a ST296N scsi drive? The last thing I want is the hard drive to
toss its cookies.
Ice.
--
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