Updated to Yosemite with SSD existing and is Trim, Trim on?

I had a computer running Lion (Mac Powerbook, early 2011) which was a third party (Crucial MX 100, 512 GB) SSD.  I had used Trim Enabler 3.24 to light Trim to it.

Then I go to Yosemite (my Institute does not allow El Capitan again).  It works very well.  I'm guessing that the filling is always enabled, but I'm not sure.  To complicate, I understand that Trim Enabler 3.42 changed a system driver?  Yosemite allows Trim is activated by a terminal command or by Trim Enabler 3.4 or disc Sensei. using a kext certificate?

The terminal command probably won't tell me if the trim was already activated?

Can new programs that allow the filling with the kext certificate check if the Trim is enabled by modifying the system driver?

Should I worry activation Trim twice spoil something?

How can I check if the Trim is activated?

About this Mac > system report > Sata/Sata Express.

Tags: Notebooks

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