Raid Questions please help

PAo_ReVoLT

[H]ard|Gawd
Joined
Apr 4, 2008
Messages
2,036
HI

i'm going to make a raid-5/6 storage server to secure my work not getting lost by corrupted harddisk so here are my questions

1) lets say i have raid 5 set up on A system with 5 drives then can i took out 5 of those drives and put it in B system without formating? if yes is i need to be the same raid card?

2) i'm looking at raid card at ARC-1680 it says "Up to (128) SAS or SATA II drives using SAS expanders" my question is what is SAS expanders? is it a hardware/software/or just a split cable? and is it means that i can just buy 1 cards and make 128 array drive?

3) which one do you guys recommend? between ARC-1680IX-24 and Adaptec 2258700-R 52445 or do you guys recommend something else i have GA-X48-DQ6 board for the server so i need the one with PCIe not PCI-X and my goal is to reach 20TB

4) currently i have Seagate Barracuda ES.2 ST31000340NS 1TB but the AS version is a lot cheaper now can i mix them in the raid?

thx in advance
 
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