Windows 7 TRIM on non-OS SSD?

[Dawn1113]

I apologize in advance for yet another noob question.

Will Windows 7 automatically implement TRIM on a non-OS SSD? My OS is installed in another SSD and I want to use the second one for a few apps to spread the load a little and minimize wear and tear. My controller is set to AHCI mode. Both drives support the trim function.

 

[Dawn1113]

Never mind. Apparently, it does. For fellow noobs who may be wondering, I just used an elevated command prompt to check the drive in question. Drive C is my OS drive. The second query checks whether the TRIM function is implemented on drive D, the second SSD. The returned value 0 means TRIM is enabled on both drives.

Well, at least, that is how I think it works.

 

[Rick]

Never mind. Apparently, it does. For fellow noobs who may be wondering, I just used an elevated command prompt to check the drive in question. Drive C is my OS drive. The second query checks whether the TRIM function is implemented on drive D, the second SSD. The returned value 0 means TRIM is enabled on both drives.

Well, at least, that is how I think it works. View attachment 72520

Hah, that's quite an arcane way to verify TRIM is working. "DisableDeleteNotify" doesn't really mean much on its own nor have I ever used fsutil to verify TRIM, but it looks like it supports your hypothesis.

As far as I know, the only pre-requisite for TRIM support in Windows 7 is AHCI. I had never considered that it would *not* be enabled for secondary SSDs, but it's good that you have confirmed it is.

 

[Dawn1113]

Arcane it is. I could find nothing about Windows 7 TRIM support for non-OS SSDs on the net. I suspect that is because no one has been silly enough to ask .

I should've figured that having the SATA controller set to AHCI will mean that all SSDs installed in a Windows 7 system will have TRIM enabled. Thank you for pointing that out as it does put my mind at ease -- finally.

 

[Marnomancer]

To put your mind further at ease, refer to this book, page 250.
P.s.: Before you ask, it's legal.

 

[Dawn1113]

Thanks, Marnomancer. I already have it. You provided me a link to a copy of this same book not too long ago in answer to a previous -- equally silly -- question about Windows 7 and disabling paging executive. The book has been very useful so I should thank you again for that. I neglected to check it this time.

Much obliged, guys.

 

[Marnomancer]

Glad to be of service.
Sharing knowledge only increases mine. A silly question is better than an unasked one. And TBH, no question is silly. The less experienced isn't always stupider. You once had pointed out something that I had missed out. Possible monitor fault? Yes.