RAID question

[Journer]

so i'm thinking about setting up another PC with freeNAS with 2x500gb on raid 0 or something. i was wondering what would happen if the PC i put it in died. I am assuming the information about the array is stored on the hard drives but i'm not sure. my question is:

1) if the computer dies and i need to put the harddrives/controller in a new comptuer, will i loose any data?
2) if the controller dies will i loose any data?
3) if the controller looses power (ie swapping it into a new computer) will i loose any data or is it stored on a rom chip on the controller


thanks

 

[Rubycon]

Some configurations are stored on the drives, some in nvram and some in both.

As long as the drive(s) are moved to the same host type, data integrity should be preserved. I've seen four disk raid 0 arrays physically moved from MegaRAID Enterprise 1600's to Intel SRCU42X controllers with NO input from the operator and the system ran fine!

Take the same disks and plug them into a Mylex ExtremeRaid 2000 and you will have problems, however.

 

[Journer]

how do you find a controller that formats the raid to where all the info is on the drives?

 

[Rubycon]

Originally posted by: Journer
how do you find a controller that formats the raid to where all the info is on the drives?

Most if not all firmware based (read: cheap motherboard based host raid) controllers do store the information on the drives exclusively.