[Lustre-discuss] software raid
Ms. Megan Larko
dobsonunit at gmail.com
Tue Mar 29 17:07:43 PDT 2011
Hi,
Just as a clarification/update, I have done both software and hardware
raid. The issue with the device not coming back as the same drive
letter or position was mitigated by using the LABEL=disk5 (or whatever
string) so that the mounts are placed into position by label. Newer
versions of software raid use the physical drive serial number (s/n)
or other unique identifying number obtained from the hardware itself.
For example root=UUID=21c81788-30ea-4e5d-ad9b-a00a0be5ce7e" I have
had hardware raid cards early on that were not capable of this
behavior. Now the choice is entirely up to the administrator/user as
to preference.
Cheers!
megan
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