Hello,
I recently built a 6x3TB FreeNAS 9.3.1 system and have been playing around with various options and learning the system before settling transferring over my data. With my first FreeNAS install, I opted for RAID-Z2 and left the drives unencrypted and ended up with a 10.9TiB available pool. I wanted to see what the processor overhead was like for an encrypted setup so I wiped that original pool and created a new encrypted pool. The FreeNAS menu estimates that I would have the same 10.9TiB available but, after creation, I now only have 10.4TiB available. I wiped this encrypted pool and now newly created unencrypted pools only offer 10.4TiB available space. I have tried rebooting between wipes and creation, reinstalling FreeNAS on the USB stick, wiping the platters via FreeNAS GUI, and nothing seems to solve the disappearing space. I won't feel comfortable transferring my data over until I at least understand why this is happening.
I recently built a 6x3TB FreeNAS 9.3.1 system and have been playing around with various options and learning the system before settling transferring over my data. With my first FreeNAS install, I opted for RAID-Z2 and left the drives unencrypted and ended up with a 10.9TiB available pool. I wanted to see what the processor overhead was like for an encrypted setup so I wiped that original pool and created a new encrypted pool. The FreeNAS menu estimates that I would have the same 10.9TiB available but, after creation, I now only have 10.4TiB available. I wiped this encrypted pool and now newly created unencrypted pools only offer 10.4TiB available space. I have tried rebooting between wipes and creation, reinstalling FreeNAS on the USB stick, wiping the platters via FreeNAS GUI, and nothing seems to solve the disappearing space. I won't feel comfortable transferring my data over until I at least understand why this is happening.