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echo: os2prog
to: Peter Fitzsimmons
from: Coridon Henshaw
date: 1996-01-25 23:22:16
subject: Multithreaded directory sweeps

On Wednesday January 24 1996 at 00:19, Peter Fitzsimmons wrote to Coridon Henshaw:

 PF> Yes -- particularly if the drives are on separate disk
 PF> controllers; OS/2 can get all the non-pio ones busy at the same time.

Would there be any advantage in a mixed PIO IDE and DMA/busmaster SCSI system?

 PF> or let the user tell you some how (this might be desirable, since a
 PF> remote drive can't be inspected with an ioctl).

As I recall, the category 9 IOCTLs require that the drive be locked, which
is something I can't do because the program will be running from the same
drive that it is checking.  It will also need to check the boot drive.

Not to mention that I've already lost a bunch of data and one hard drive
this week, so I don't think I'll mess around with the category 9 IOCTLs
just yet. :-)

I'll guess take the easy way out and just ask the user which logical drives
can be scanned at the same time.

Thanks for your help.

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