Raid, why??

[paddi70]

What is the benefit from setting up Raid, and what is raid 0 and raid 1?
What would be the best size drives for it?
Cheers

 

[llwayneio]

im not completly sure but i think raid 0 is like it puts 1 of each file on each hard drive, so you basically have two identical hard drives and therefore it is quicker to get data because it can like stream half from one hdd and half from the other thus making it like half the time... i think thats what it is anyway, but i might be wrong, im new to all this stuff myself

 

[MagicalTrevor]

Raid 0 writes the data like this;

 0         1
 2         3
 4         5
 6         7
 8         9
DISK1  DISK2

Raid 1 writes the data like this;

 0         0
 1         1
 2         2
 3         3
 4         4
DISK1  DISK2

Raid 1 stripes the data onto mutiple disk reducing the readtime. Raid 0 mirrors the data for redundancy, so you get less storage space but a much higher MTTDL (mean time before dataloss). Wikipedia it

It doesn't matter what size disks you use as long as the two disks are the same size.

 

[MagicalTrevor]

im not completly sure but i think raid 0 is like it puts 1 of each file on each hard drive, so you basically have two identical hard drives and therefore it is quicker to get data because it can like stream half from one hdd and half from the other thus making it like half the time... i think thats what it is anyway, but i might be wrong, im new to all this stuff myself

Don't think in files think in bits!

 

[Billy 2 Sips]

Raid 1 stripes the data onto mutiple disk reducing the readtime. Raid 0 mirrors the data for redundancy

Got your numbers mixed up on that sentence, RAID 0 stripes, RAID 1 mirrors

 

[semi-pro waster]

It doesn't matter what size disks you use as long as the two disks are the same size.

Technically even that doesn't matter, you will simply get the space of the smallest drive in the array e.g. for Raid0 with an 80gb and 120gb you would get 2x80gb, for Raid1 with an 80gb and 120gb you get 80gb. However ideally you will have both drives that are exactly the same, even down to model number etc to reduce the risk of them running out of sync.

 

[Delvis]

Indeed

Then you can get Raid 5's etc...striped...with a hot spare yada yada...But that's more for servers/workstations.

So I shant go into that