Disappointing finish for my Iomega StorCenter ix2. The second drive failed and it has been replaced with a Synology DiskStation DS212j with WD Red drives. (more on that later) I was doing some consolidation and cleaning of the computer room yesterday and I decided it was time to wipe some hard drives including the ix2 NAS.
The replacement WD Green and the old original 500GB Seagate spin up and after a few minutes I can login via the web interface. I go into the manage disk section and I’m excited to see there is an Erase Disks section under Manage Disks. The first message tells you that you’ll need to delete all the shares (including the built in ones?!) before using the wipe functionality. The second message talks about how securely erased your drives will be. For those of you who don’t know me – here is the setup..
All data is permanently erased and overwritten to prevent recovery, user information is removed, and the device is reset to factory defaults. Disk erase is a secure operation to ensure all data on your Iomega StorCenter device is irrecoverably deleted. The disk erase process overwrites all disks with random data to prevent recovery of existing or deleted data, users, and passwords.
…and the outcome? Well I clicked it, confirmed it, and watched as the red light came on and the drives started to chug. Just like when it gets stuck doing a rebuild, I wanted to see what it was up to. I was also curious if this would affect my ability to SSH into the machine. Not only could I still log in to the ix2, I found the program that it was running to wipe the drive:
/usr/bin/shred -v -n 1 /dev/sda2
/usr/bin/shred -v -n 1 /dev/sdb2
I looked quickly at the man page for shred. The default setting is 25 times. Older versions list the default at 3. Iomega changed it to make a single 1 time pass!
Think you might donate or craigslist your old NAS drive? Well if it’s an Iomega – don’t rely on the built in “Secure Erase” to protect your data! A single pass (while at least random data) is going to be slightly better then a “quick format”. When it finished and re-initialized I restarted it, and I STILL had root access. (read: factory defaults) To which I ran my own shred on both /dev/sda2 and /dev/sdb2.