#Miro Prmiere hdrv speed?
3 messages in this thread
I'm a new Miro Premiere products user (in fact new to PCs… x-Amiga)
and I'm having trouble getting anything close to full performance out of my
Miro boards. Right now I can only get about 75% JEPG out of the DC1tv board.
It may be a hard drive problem… but I thought you at Miro might know some
ways of maximizing the capabilities of my system.
Here's my system: non-linear editing using Premiere, on a P90 with an
Adaptec 2940W SCSI controller and a 1GIG Fujitsu ( M2694EQ-512, SCSI-2,
1033mg, 512 bytes/sector, synchronous, SCSI linking, command queuing, wide
SCSI (16bit)…. This was read from the Adaptec SCSI Interrogator. )… I'm
using the Fujitsu till I figure out which drive to get for digitizing (most
likely a 4 Gig Micropolis SCSI-2 Fast/WideAV drive). The Fujitsu came with my
PC and is the sytem disk.
For now it seemed to me that I should be able to use the Fujitsu…
that it should be able to keep up with the demands of digitizing. I am
digitizing from Hi-8 (Y/C). My Miro boards are DC1tv & PCM1 (sound).
I think I've figured out the capture process finally but my read write
speeds (as measured by Miro's HDspeed program are very slow! i.e. roughly
450kB/sec and less, particularly writes. Can you suggest anything. I have
deleted the SMARTDRV lines form autoexec.bat and config.sys… as someone
seemed to suggest but nothing was gained. I, oddly get best performance by
setting cache (under control panel/386/virtual memory) to 16 bit disk and file
access and 512 Kb cache. That seems wrong. Any advice experience you could
offer would be much appreciated. 32 bit Disk access doesn't work (16 bit
drive??). 32 bit file access does but I can only increase my read speed
(alot), writes actually get slower!!
I've inquried on the Adaptec Forum as well but there seems to be
something around how Miro accesses disks too??
Thank you very much for your help.
Tom
Tom,
That is puzzling. I would figure that you should get much better performance
than that, too. I did talk to Adaptec once re: a scsi configuration that I had
in a Pentium and they said that their PCI controller did not support Microsofts
32bit disk access and that they did their own. Wish I could help more.
-John
You might try getting the latest version drivers from Adaptec. They now have a
Windows VxD for many of their scsi cards to allow 32-bit disk access from WFWG
3.11. – Jan