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Old 01-09-2010, 09:29 AM   #16
marnold
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Quote:
Originally Posted by wroom View Post
Is this yet another example of people meddling with things they shouldn't touch, with no other obvious reason than to feed the "symmetry devil"? Or am i missing something important? Is there a particularly good reason to start naming the old ide devices as scsi?
I was wondering the exact same thing. I assume that there must be some method to the madness, but I'm not sure what that method might be at this point.
 
Old 01-09-2010, 10:09 AM   #17
GazL
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Abstraction is probably what it's all about. If you write a scsi layer above the ide/sata drivers then the upside is that people only have to write apps to support scsi. The downside is you tend to find you lose a little functionality due to the need to limit yourself to a common feature set.
 
Old 01-09-2010, 11:05 PM   #18
MannyNix
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Originally Posted by rworkman View Post
I suspect a few people will eventually run into this problem, and while it's easy to get around for the more experienced users (the ones that *should* be running -current), we all know that everyone isn't in that group :-)
http://rlworkman.net/howtos/libata-switchover
Thank you for taking the time to write it withing a few days of being mentioned in the Changelog, also thanks to the Slackers who helped to fine tune it. It's really helpful, I'm even booting my Open and Free BSD partitions now changed to sdaX. Painless. Thanks.

I'm still trying to figure out what are the correct kernel config options to make my custom .config working. gentoo's kernel-config (3. Common problems and areas of confusion) seems to be a starting point, I'm at my 2nd try now ;-)
 
Old 01-10-2010, 03:26 AM   #19
wroom
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Quote:
Originally Posted by GazL View Post
Abstraction is probably what it's all about. If you write a scsi layer above the ide/sata drivers then the upside is that people only have to write apps to support scsi. The downside is you tend to find you lose a little functionality due to the need to limit yourself to a common feature set.
Yes. But the common interface subset is still there between hd and sd, so one does not have to write anything extra to support both of them within the common subset.

And yes, the ioctl list for the sd devices are a little shorter than the hd ioctl list. But removing functionality for old ide disks may not be what we wanted.

The bottom line is that there is an "agreed standard" for naming devices, that should not be deviated from unless some particularly good reasons:
http://www.lanana.org/docs/device-list/devices.txt
 
  


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