RAID 5 questions

[psd99]

Bare with me............


Say I had 3 X 73gb in a RAID 5 setup and eventually I wanted to replace all three to 3 X 146gb without losing any of the data on the original drives.

If I was to replace one of the 73gb drives with a 146gb drive and started to rebuild the RAID so at that moment it would be

RAID 5

2 x 73gb + 1 x 146gb would the 146gb drive be fully available?

Eventually if I replaced all of the drives with 146gb individually would my data be on them from the 73gb drives?

Hope that makes sense.

 

[psd99]

thanks

 

[psd99]

Mercutio you are correct there although no new partition.

The idea would be to replace all 74gb drives with 147gb drives but not losing any data at all by being able to rebuild the RAID each time.

The actual question wasn't for myself it was a question asked at work. I hadn't been asked this sort of thing before. I work in a place where RAID 5 is utilised a lot. We deal with RAID rebuilds quite regularly on a RAID 5 setup.

My answer was that the first 147gb drive would initially end up being formatted as 74gb drives because of the current RAID 5. I would also start fresh with 3 brand new drives and somehow look to migrate the data over from the original drives.

This RAID gets confusing sometimes for me.