TRIM for RAID from Intel

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This is all news from March right? There were tons of threads about the confusion about 9.6 Intel drivers allowing TRIM on RAID; while in fact they only allow TRIM in AHCI mode with the Intel driver. Even with the motherboard set to RAID mode, individual SSDs not part of an array would serve in AHCI mode. But since the Intel driver did not support TRIM at all even normal SSDs could not have TRIM and everybody had to use the Microsoft drivers. Intel changed that with 9.6, but did not support TRIM on RAID arrays; only separate SSDs on AHCI.

So this all seems old news?
 
yeah, ancient news.

It allows drives that are members of a system containing a raid but not actually in the raid themselves to get TRIM. Currently the TRIM is not able to see through a RAID array --I wish tweaktown would try to implement these things or at least read the documentation before posting.

Again, let me stress, you cannot TRIM a RAID array. You may, however, TRIM drives that are separate from a RAID (say if you have a RAID-5 of WD 640s for main data and then a single SSD standalone, most bios's do not allow you to selectively put drives in AHCI and RAID mode, meaning, because of that RAID-5, all drives running off the SB are in "RAID" mode, even if some are not members of the RAID array itself).

It is possible for a trim command too be passed through a raid array, however its going to require a good chunk of logic to be performed by the CPU.
 
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