Using HDAT2 to fix 1TB drives used in ZFS pool. Drives show only 32mb available.
Samsung HD103UI 1TB drive only reporting 32mb size. Walkthrough of the fix using HDAT2
Ok, so I’ve had a few of the Samsung Spinpoint F1 drives that have been dead because they report as only being 32mb in size. This appears to be due either to an incompatibility with some Intel chipset Gigabyte motherboards (from some reference info), or that I had them formatted as part of a zpool under Solaris ZFS. I’m not sure which, but whatever the cause I could not use them for anything larger than a good sized USB stick.
Well That’s all fixed now.
None of the The Seagate utilities package (Seagate bought Samsung drives a while back, so you cannot find Samsung utilities anymore) Seatools does not reset the Max size no matter what you do. After searching the net over and over I finally found a forum discussion with a link to a utility that fixed the issue. The program is called HDAT2, and it is available at hdat2.com.
Apparently the issue is that the for some reason the max address space for the current user is set to 65134 LBA sectors which translates to ~ 32 megabytes. If you look to the current native area it is 1953525168 which is one terabyte. Below you will find a pictorial howto for fixing this issue with HDAT2.
First download hdat2 and put on a CD, boot to the CD with the hard drive you want to fix plugged into the machine. the ISO for HDAT2 is self booting so no worries… :)
First you can see my drive with a capacity of 33.35MB
Now go and select your drive
In the next menu select “SET MAX (HPA) Menu”
Then select “Set Max Address”
Now scroll down to where it says “New User” and press S to set that value to the new user value.
After saying that ‘Y’es you want to do this you should see this
Now the home screen shows a full 1TB of Storage Goodness!
