Re: [Emc-users] Compact Flash card for Hard Drive

[Leslie N. <les...@fa...>]

I have done quite a few of these now.

Unless you know your card adapter can handle UDMA, disable it. Not all 
card adapters are wired for UDMA and you get all sorts of problems if 
you try to use UDMA on them. As far as I know all SATA CF card adapters 
can handle UDMA. It may give you a bit more speed so once you get 
everything working, try enabling UDMA and see if it makes any difference.

Some cards identify themselves as removable storage. This makes it 
difficult to install Windows but Linux doesn't seem to mind.

Les

> UDMA is probably not necessary.  1 "x" is 150 kB/second, or the speed of 
> an audio CD.  The 133x card is therefore about 20 MB/second, which is 
> pretty slow by hard disk standards.  It should be OK to set UDMA on, 
> since the BIOS or Linux will fall back to the highest supported mode 
> anyway.  I think LBA is the best mode in general, but you may need 
> "Large" for one reason or another.