[nmglug] RAID0 vs RAID1

[bill york]

You will definitely see better performance with RAID 1. However, be 
aware that RAID 1 has no fault tolerance, unlike RAID 0. If you lose 
either drive, the mirror will protect you against data loss; a loss of a 
drive using RAID 1 will cause you to lose the entire volume.

Bill

Tim Emerick wrote:

>I'm building a replacement samba server.  The motherboard has a builtin
>Promise RAID controller which I intend to use with 2 80gig ATA100 EIDE HD's.
>My choices from the controller are RAID0 (mirroring?) or RAID1 (striping?).  
>
>Applications are fairly basic with an equal amount of both reads and writes. 
>I understand that if my application was mostly read-only then mirroring would
>be better but since I'll be doing both I'm leaning towards striping for
>performance reasons.
>
>Since the RAID controller is hardware I'm assuming that I don't have to do
>anything special with Linux.  Linux will see the raid array as a single
>drive.
>
>Any comments?
>
>Thanks in advance.
>
>Tim Emerick
>
>
>		
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