[el_vago32]

I have a RAID 10 array with 4 "36" GB HD....that's about 72 GB of available space, but I need more space. How can I add, let's say, another 36 GB HD without having to break the current array, it is, without having to lose the information. Thanx.

[jmmijo]

You can not do anything to the existing RAID 10 or 0+1 if you like, array as that is the only configuration that works as a RAID 10

However, if you want to add another RAID array to your existing RAID Host Controller, then you should be able to do that.

Do you have a dual-channel RAID controller, say a nice Adaptec board ?!?

If so then add the larger 73~74GB capacity drives to that channel and create a new RAID array. My suggestion is to use a RAID 5 with a hot spare/fix as this will give you striping+mirroring+parity and supports the above mentioned hot spare option

Also note that a RAID 5 array requires a minimum of 3 HD's and of course an extra HD for any hot spares.

[el_vago32]

Alright, thanx a lot for ur help. Think I'll do that RAID 5 stuff since it's safer than 0+1.

[jmmijo]

It should work out better for you in the long run as you could copy the data over from your current RAID 10 array to the new RAID 5 array then re-use those drives from the RAID 10 array and wipe out that array and rebuild it as another RAID 5