[Leaplist] fstab

[Derek Konigsberg]

On Thu, 29 May 2008, Bryan J. Smith wrote:

> On Thu, 2008-05-29 at 09:35 -0400, Bryan J. Smith wrote:
>> This is now the default after an install/upgrade because people were
>> often moving storage around (especially SANs) and causing label
>> conflicts, let alone such things aren't an option for direct device
>> entries.  ;)
>
> Oh, I forgot the other, mega-biggie ...
>
>  Software RAID
>
> Seen too many people toast their Software RAID volumes by direct device
> -- or even just /dev/md* -- access.  Not only are hardware devices
> re-ordered, but MD devices as well.  UUIDs are not.

This reminds me of how Solaris does things.  They don't use UUIDs for 
normal drive mounting.  (though they do use far more relevant device names 
than the meaningless and arbitrary crap Linux uses in /dev)  But when you 
use SVM (a.k.a. DiskSuite, Sun's volume manager), it does use device 
unique IDs to identify the disks.  Normally, this works great.  Though 
once in a while, you'll find a RAID enclosure (like I did) where all 
volumes get the same device UID, and you have to hack around it (i.e. fix 
driver config files in the OS).  Also, I heard that some low-end IDE disks 
shipped with the SB100 desktop had that same issue.

---------------------------
Derek Konigsberg
octo at logicprobe.org
http://hecgeek.blogspot.com
---------------------------