problem partitioning newly installed SSD
Just installed a new 1TB SSD into the optical bay, and Disk utility says it failed the partition: "unable to write to the last block of the device"
Anyone had this, or have a solution?
Depending upon the exact MBP 13 you have (you've provided the most generic description) you might be having a SATA issue. Your machine's optical bay could be SATA I or II trying to write to a SATA III 6Gb/s machine. The problem may also be with the caddy. You could have two automagically detecting devices fighting over what transfer speed to use.
Perhaps you can manually lower (jumper) the SSD drive down to SATA II.
If this answer is acceptable please remember to return and mark it.