"m. allan noah" wrote:
>
> ok dave, look at it this way.
>
> 1 in a million chance that one drive will fail.
> 1 in a million chance that you other drive will fail.
>
> 2 disk raid0 setup, either disk can destroy your filesystem.
> 2 in a million chance of md device failure.
I can reverse that and quantify it exponentially that the chance of full
or partial file recovery is greater if the data is spread across multiple
drives.
But that doesn't matter because important data gets put to multiple back-up
tapes, and their is NO drive combination to substitute that.
> two disks doubles your chances of railure in raid0. three disks triple the
> chance. and do not think you can recover any of the data, cause the
> striping makes that a bitch. i know, i have done it.
Sector data is stripped (in HW raid anyway), leaving you a very good chance
many peices of data are contigous across fewer then X amount of drives in the
RAID.
(As a result of the filesystem algorith)
> i ONLY use raid0 for news spool.
Good for you.
> anything else, hardware or otherwise,
> dont come crying to the list about it when one disk failure brings down
> multiple gigs of data.
Whaa Whaa Whaa.
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