raid 0 and image backup

[greggustin]

Never used raid before, so -
If I have 2 drives as raid 0
and 3rd drive for data and backup
do I treat drives 1 and 2 as ONE system drive?
will it 'look' like just a "c:drive"
can I do an image back up like I do now?
can it be restored to a single system drive later

 

[Steevo]

In a system where you have 3 drives for speed and redundancy RAID 5 would be the better choice.Then if you have a failure on any one drive the array can be rebuilt on the fly, with no data loss. As well as a performance boost when a controller doesn't use the system processor for the RAID algorythim.

 

[greggustin]

will research raid 5
how is that different than raid 0+1?
also most new MB have raid 0, or 1, or 0+1
have not seend any with 5

and
is performance same if raid is built in - or via add-in card?

 

[fitz]

will research raid 5
how is that different than raid 0+1?
also most new MB have raid 0, or 1, or 0+1
have not seend any with 5

and
is performance same if raid is built in - or via add-in card?

Raid 5 uses 3+ drives and stripes data + parity info across each drive. The parity information is useful to access data when (note I say "when" and not "if") a drive failes. In a RAID 5 scenario, when a drive fails, you can still access all data (although your performance will suffer). If 2 drives fail, however, you Screwed. RAID 5 is very fast for data reads, a little slower (compared to RAID 0) on the data write.

RAID 0+1 is a mirrored stripe set - requires at least 4 drives with each pair in a stripe set and one stripe set mirroring the other. No parity information is calcuated or written.

I won't get into RAID 1+0, but it is different (and better) than RAID 1+0 but most consumer boards don't really support it. Last time I checked (it has been a while since I built a custom system), most onboard RAID on the consumer side only support RAID 0, RAID 1, and RAID 0+1

3rd party RAID controller performance depends greatly on which controller you buy and the feature set on the controller. Buying a RAID controller with a larger cache can improve performance significantly depending on your disk usage. Buying a server class SCSI Raid controller large (battery backed) write caches can have a huge performance advantage.

Lots more info on RAID can be found on the web.. check Wikipedia for a start.

 

[greggustin]

thanks fritz
matches my research for the day

 

[fitz]

thanks fritz

*blink* *blink*

fritz?



lol

 

[Terrahertz]

Well if he is using the third drive as backup the go for Raid0 I say. Yeah there are many lvls of Raid and Intels matrix Raid gives you good performance and data insurance. It mirrors while giving the speed benefits of Raid0.[If your using Intel tech] Its your first time it seems so have fun. Also turn off system restore on the raid drives to boost performance.

 

[mlakrid]

and hes right most mobos only support Raid 0 or Raid 1 because only 2 drives are supported in the RAID feature..

OR... you can buy a PCI RAID controller card with up to four ports from what I have seen so far...

Raid 0 without QUESTION has the best performance... bar NONE... especially if you use Western Digital Raptors as your HDD of choice Like me