Frequent issues with supplied SSD in 17" 2011 MBP

Question

Hi all,
Perhaps someone can help?
I've recently (in the last couple of months) been having problems with the SSD in my early-2011 17" MBP. The model of the SSD (from System Profiler) is APPLE SSD TS256C.
The problems eems to occur after emptying the Trash when it has files of large sizes in it (video files of 1 or more GB typically). I empty the Trash, and the available space showing for the drive gets bigger,a s expected, but then when I try to make use of the drive (for example by copying files from another drive to it) I am told there isn't enough free space (when there clearly ought to be).
Example from earlier today:
I had 60GB available.
I put around 30 GB of stuff in the Trash and emptied it.
Available space now shows 90GB free.
I try to copy 75GB from an external drive onto the SSD, but am told there isn't enough free space.
In a attempt to fix the problem, I did what I have done on the 3 previous occassions: Restart the computer, hold down Cmd+R and run Disk Utility from there. Here I can repair the SSD (as it has the OS on).
This is what Disk Utility showed me:
Verifying volume “Hard Drive”
Checking file systemPerforming live verification.
Checking Journaled HFS Plus volume.
Checking extents overflow file.
Checking catalog file.
Incorrect block count for file Hospital Records - 100k YouTube Subscribers.mov
(It should be 11029 instead of 144729)
Incorrect block count for file Netsky Live - Backstage at the Electric Brixton.mov
(It should be 12062 instead of 606074)
Incorrect block count for file Netsky Live - Lotto Arena 2013 Promo.mov
(It should be 7177 instead of 135443)
Checking multi-linked files.
Checking catalog hierarchy.
Checking extended attributes file.
Checking volume bitmap.
Volume bitmap needs minor repair for orphaned blocks
Checking volume information.
Invalid volume free block count
(It should be 11712443 instead of 10811938)
The volume Hard Drive was found corrupt and needs to be repaired.
Error: This disk needs to be repaired using the Recovery HD. Restart your computer, holding down the Command key and the R key until you see the Apple logo. When the OS X Utilities window appears, choose Disk Utility.
I ran it a couple of times (as on previous occasions) until no errors were reported.
On previous occassions, upon restarting, things went back to normal, but this time I am still being told there is not enough free space, though Get Info shows 121GB available.
So I have some questions:
What is going on?
Why does this keep happening?
What can I do to solve my current issue?
What can I do to stop this from happeneing again?
Many thanks in advance...

Answer 1

I'd totally forgotten about this until I got a notification that you had replied.
I no longer have this problem.vaguely remember calling up Crucial (who make my second SSD) and they said something about leaving the machine on, but not doing anything on it for 24 hours or something. So it has to stay switched on, not go to sleep (dim your screen though) and don't touch your keyboard or mouse for a full 24 hours... maybe it was a bit longer... maybe it had to be at the login screen (can't remember)... and in this time it will run some automatic repair thing.
It was so long ago I really can't remember the spcifics - but have a hunt around for things to that effect. Or call Apple/Crucial and mention what I've just said, see if it makes any sense to them and get them to advise the exact corect procedure.