Please SHOW me where in any version of OS X Disk Utility there is a FORMAT system. Only in the partitioning section is there any reference to formatting and you can't access that without first selecting the Partition Layout options.
So if the OP Formatted the drive he also partitioned it.
A partition is a partition. If I partition and format a drive Mac Extended (Journaled) using SL 10.6.x disk utility it will still be find to install Lion or MT Lion without first Re-Partitioning and formatting using the disk utility from one of those newer version of OS X.
Really if it was enough for it to be Labeled Apple SSD TRIM would be enabled.
Also there is NO mention of the Age of the drive or where the OP got it. So just how do you know it is from 2010.
As I said before a DRIVE CAN NOT BE FORMATTED without first haviing a valid PARTITION ON IT.
dmdimon wrote:
he can.
Mentioned APPLE SSD TS256B is a drive from 2010 year Macs and it is installed now in 2011 mbp - so it was not new, and as not new it was partitioned at Apple before using it for original BTO Mac.
At a time it was like 10.6.3-10.6.7 OS X, exactly pre-trim system which (and under) it was partitioned.
And I'm NOT suggesting him to re-partition drive. I suggest just run drive repair for Disk Utility 'update boot components as needed'.
Also trim is enabled exactly based on drive internal name, it should begin with "Apple SSD", that alone enough.