| From: | leond |
| Date: | 13 May 2000 at 04:30:50 |
| Subject: | Re: max transfer |
Hi Colin,
On 11-May-00, Colin Wenzel wrote:
CW> Listen very carefully...............
CW> *MAXTRANSFER HAS NOTHING TO DO WITH SPEED.*
CW> It is simply the size of the largest block transfer the drive
CW> is capable of, at any one transfer.
CW> It is a "drive adjustment" not a "system adjustment"
CW> IDE drives on Amiga's should always be set to: 0x1fe00
CW> as some drives have trouble with larger transfers due to
CW> a bug in some drives (internal) software.
CW> (Large files become corrupted)
CW> All SCSI's can be set to: 0xffffff (zero-x-6 f's)
CW> SCSI drives configured in 32 bit space can be
CW> nearly anything, use the HDToolbox default value.
CW> Either way, it makes no relevant difference to speed,
CW> if you want it to go faster, use a FFS blocksize of 1024
CW> use more buffers & get a modern (fast) drive...
CW> But don't hold your breath, you MIGHT get 4Mb / sec
CW> on a good day.... The IDE bus was an after thought....
CW> Sorry.................
CW> Colin Wenzel. Australia.
CW> EMAIL: mailto:colstv@hotkey.net.au
Thanks for being specific on the topic of Maximum Transfer.
Could you please address whether adjusting the Maximum Transfer, via HDToolBox, on a drive already in use is safe. I assume that this can be done without wiping out any data but I would like you, or someone else, to explicitly say it's safe.
I know it would still be a good idea to have everything backed up but would the the back-ups be needed or just a good idea just in case?
Leon
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