DSM-G600, DNS-3xx and NSA-220 Hack Forum

There's really only one way to do it - backup the data - create a new array and then restore the data.

Now if you're a linux guru (and if you were, I don't think you be asking this question) you could probably, remove one 320GB drive and replace it with a 500GB, telnet into the unit format the drive, copy the data over, remove the other 320GB drive, replace it with the other 500GB drive, and then run mdadm and recreate the RAID array - and maybe, someone here can tell you how to do all that, step by step, - but - are you confident that you could make it happen?  Are you willing to risk the data?

In theory and again in you're familiar with linux, you could remove both 320GB drives, install the 500GB ones, create a RAID1 array, connect a 320GB to the USB port and transfer the files that way - something which I plan to try soon - but again are you willing to risk the data?

And whilst I'm about it - I'll bet (from the wording of your question) that you don't have it backed up - so I'd guess - you are willing to risk it.

Go for broke man, what have you got to lose?

Yes - you can still access the partition when only one drive is plugged (in) - that's the whole concept of RAID1, when a drive fails, the data should still remain accessible, and yes, you could plug one of those drives into your XP system and use ext2ifs and get access to the data and copy it back.