Archived posting to the Leica Users Group, 2010/10/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> I'm hoping some of the more tech savvy folks can help me out here. I'd > like to > upgrade my Drobo from 4x1TB drives to 4x1.5TB drives. In RAID 5? i.e. you can lose one drive and it keeps going > If I pull all my drives at once, if anything happens to the new 4x1.5TB > drive setup, I can put the 4x1TB > drives back in. I doubt the RAID is that clever, it will have been reconfigured for 4x new drives. Server RAID can do this but I doubt "consumer" hardware can. > That will put me back to where I was before I upgraded. I could keep the 4 > old drives offsite too, which would > help. You would need exactly the same kit, (hardware/firmware etc) and even then may not work as above. > But then I would need to temporarily store the data on the current setup > somewhere, which is a bit over 2TB. I don't have anywhere to put this data > temporarily. If I switch the drives 1 at a time, then I can't save the 4 > old > drives as a backup; they'll reconfigure where the data is stored each time > I add > a new 1.5TB drive. Each time you change a single drive, the other 3 will rebuild the missing parts from themselves. You have the danger of one of these 3 failing before the 4th is configured.... You will know at each stage that things have worked before moving to the next disk, expect quite a few hours per disk and I would leave a couple of days between disks. Do not expect to go backwards, perhaps get a couple of external 1.5TB disks to backup all the data during the transfer just in case? john