Upgrading WD My Book Studio II

Ever since I got the WD My Book Studio II, I keep all my photos in it as it is a RAID device.  A 2TB device provides 1TB of storage when it is in RAID 1 mode (mirrored) and I quickly approach running out of room with RAW files being part of what I keep.  Luckily I have a couple slightly bigger capacity compatible drives to let me upgrade  the external unit with.

After opening the case from the top and unscrewing the top retaining plate the original 1TB drives can be pulled out. They are very snug so it took a little bit of force to extract them from the case, like pulling teeth :P

Here is what the case look like without the drives.  It is pretty minimalistic.  One logic board right in the middle in between the drives.  SATA connections at the bottom.  There are rubber feet to cushion the drives as well.

The original 1TB drives are at the top, I am replacing them with the 1.5TB drives.  They have to be the Caviar Green drives, probably for power consumption and heat dissipation reasons.

Here they are all assembled. I am going to put the spare 1TB drives into my Linux server as another RAID 10 set :)  More on that here.

After connecting the drive back to my iMac, the WD Drive Manager automatically recognizes the new drive configuration and sets it up automatically with maximum capacity mode (RAID 0).  Just be forewarned that all the data in the drives would be wiped clean!

I changed it to RAID 1 (mirrored) mode and now I have half the capacity, but total data redundancy. After copying all the photos back on it, I still have 50% space left, so I should be good for another year or so :)

How do you keep your data safe?  What do you do to prevent data loss from hardware failure?

29 replies
  1. John
    John says:

    Well, I thought the Caviar Green is not as “green” as it advertised… it runs slower and hotter than its black and blue brothers.

  2. straycat
    straycat says:

    this is interesting.

    i was thinking of upgrading my 2tb studio ii with 2x 2tb or 2x 3tb caviar green drives, and the wd support told me that the enclosure firmware on both the 2tb and 4tb studio ii doesn’t support drives with bigger capacity than the ones included and they were sorry about it.

    another case of companies lying to customers to make them buy new products instead of upgrading existing ones?

    • Kam
      Kam says:

      hi straycat, I am curious to see if you can upgrade to 2x2TB or 2x3TB. Let me know if you succeeded in doing so. :)

      • Jon
        Jon says:

        I was able to upgrade my 2TB Studio II enclosure to 4TB (2x2TB) successfully. It was as easy as replacing the drives and then running the firmware update .dmg available on the WD website with the enclosure connected to my Mac.

        Prior to running the firmware update, it only reported the previous 2 TB capacity despite having 4TB installed and configured for RAID 0. I’d imagine they’re detecting the capacity of the drives in the enclosure when the firmware is installed and configuring the enclosure to match.

        They haven’t released an updated firmware version on their site since the 2x3TB version of the enclosure was released, so I’d probably avoid making the jump to 6TB for now. It’s likely the currently available firmware doesn’t support that configuration.

        • mikcos
          mikcos says:

          Thanks John! Just wanted to do just that!
          Did you use the WD Caviar Green SATA Hard Drive 2 TB or 2 others? Thanks man!

          • Alex
            Alex says:

            Hey, I just replaced my 2 1TB drives with 2TB drives, one after another to get the old data on the new drives. Unfortunately it remains at 1TB capacity?! Updated firmware using the automatic tool (mac) to 1.0.17, still 1TB (RAID1). Any ideas?

            • Kam
              Kam says:

              Alex, my guess is when you inserted your first 2TB drive in the enclosure, it is formatted to be the same size as your other drive (1TB) and when you insert your second 2TB drive it is then formatted the same way as your first 2TB drive. So what you really have to do is to install two new unformatted drives in there so that the enclosure formats them together with the new size, and then copy your files back to it.

              Try to use a different enclosure with your old 1TB drive and see if you can read the data. If it can be read, then you should be safe to try this. Good luck.

            • Alex
              Alex says:

              I wasn’t patient enough to wait for my new hdd enclosure to copy back the data…after trying around I reinitialized the RAID1 drive, after that I got the full 2 TB capacity, but of course my old backups are gone…

              btw, the old drives can be read in another enclosure, just tried it using my new fw800 enclosure (just arrived)!

              thx for your help!

  3. oliver
    oliver says:

    Hey Kam, I was wondering if you were to remove one of the drives and put it into an external dock, would the mac read it and treat it like a normal drive?

    The reason why im asking is that once the drives are full, instead of filing away both drives, can you remove one and store that away and replace it with new drive and erase the whole unit to start fresh?

    • Kam
      Kam says:

      Hi Oliver, sorry I have never tried that with my WD drive. I transferred my files to a spare hard drive before changing the drives in the WD My Studio II setup. That way I am sure I have a good copy before messing around with my data.

  4. Brano
    Brano says:

    Hi Kam,

    I got WD My Studio II 1TB (500+500GB) – old one. I am wondering, if I can upgrade drives inside to 8TB (4+4TB). Any idea on this ? I would bou WD Caviar Green…

  5. Matthias
    Matthias says:

    Does anyone know if the SATA III caviar green drives will work with the Studio II (I have a 2TB version and would like to upgrade to 6TB)? The SATA III drives are cheaper than their SATA II counterparts


Leave a Reply

Want to join the discussion?
Feel free to contribute!

Leave a Reply to straycat Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.