atcomsystems.ca/forum Forums Other TDM Phone Systems VoiceMail Systems and Programming Flash Card Boot

How large of a CF did you try, nolegalmember? What worked, what didn't?

I had it going up to 128MB...beyond that DOS doesn't seem to like the massive cluser size (32K for a disk this size on FAT). It shouldn't have anything to do with brand or write speed....as long as its CF. For the future, Comdial will definately need to move the Corporate Office DX software off of the dos platform! Thank 5years for the image by the way, it worked great!

I guess I have to find a copy of this Norton Ghost and give it a try.

I did some more testing today and got the usb compact flash reader to make a working 512M. I still have a little more testing to do, but will share my results when completed.

:toast:

Here are the results of my testing. All testing was done on a Dell Dimension XPS B1000 computer, using the embedded usb (UHCI based), an add-on opti 1.1 controller (OHCI) and nec usb 2.0 (EHCI) controller. The compact flash reader was a Sandisk model # SDDR-92 and the following cf models were used: Sandisk 64M (SDCFB-64-201-00), Sandisk 128M (SDCFB-128), Sandisk 256M (SDCFB-256-201-00), Toshiba 512M (THNCF512MPG), Toshiba 1G (THNCF1G02PG). The software used was Norton Ghost 2003 (sightly modified) and the Datalight Rom-Dos 6.22 from the installed VM CF. The modifications were 1, the dos version and 2, using the motto hairu mass storage device driver DI1000dd.sys. As stated earlier I couldn't get the 512M to work using the Ghost included Iomega guest.exe driver.

Using the DI1000dd.sys driver gave 2 choices for disk layout. I was able to make workable units for the 3 Sandisks by choosing the first offered configuration, while both Toshibas required the second. While I didn't have any larger Sandisk models to do an apples to apples comparison, I feel that if one choice doesn't work, the other should.

To conclude my testing I ran a dos based HDTEST.EXE utility on the 64M and 1G cards to verify read/write operation. If you have any questions PM me.

John

Sorry guys, been real busy and missed this post.

I have not read all the post in here but I have done what you are asking.

I used a program called HP USB Disk Storage Format Tool. You should be able to google it and get it.

This will format your flash as a bootable flash (you will need a ms-dos disk to read from for this) for you and I just copied the files off of a good working DX-80 flash vm.

I took a 128 meg DX-80 flash card and moved the files to a 1 gig flash. It seem to work fine. I did not leave it in my demo to see if issues came up later. I was just seeing if it could be done in an emergency basis.(and the record time was increased to thousands of minutes)