1 2 Previous Next 22 Replies Latest reply on Nov 29, 2009 4:47 AM by Fernando Go to original post
      • 15. Re: Intel Matrix Storage + SSD TRIM Pass-through?
        glugglug

        jeff_rys wrote:

        about TRIM, here is what i think: If the manufacturer in this case Intel delivers a TRIM program, it will work for stand alone disks, like in a portable.

         

        In a raid config, not possible. So it will be impossible for Windows to overcome the controller to get to the cells needing to be erased, to be prepared as "virgin" again. At least not possible yet, right?

        Passing TRIM through from the RAID controller to the drives should be trivial for RAID0 and RAID1 (and RAID10).  But for RAID3, 5, & 6 it is far more complicated, and would probably be incompatible with some drives depending on how well they followed the spec, and be far more sensitive to partition alignment.  Also, the only way you could do RAID 3, 5, or 6 with TRIM would require reading the beginning and end of each file fragment before it is TRIMed to calculate new data for the parity stripe based on the TRIMed data being zeroed, and a reWRITE of the parity stripe which isn't necessary without TRIM, yielding performance penalties that probably outweigh the performance gains from TRIM, and extra drive wear eating into the lifespan advantage of TRIM (but probably not enough to eliminate that advantage).

        So while these other RAID configurations could be tweaked to be TRIM compatible, it really only makes sense to use it in a RAID1, RAID0, or RAID1+0 config.

        • 16. Re: Intel Matrix Storage + SSD TRIM Pass-through?
          steppinwolf

          Fernando, thanks for the info on MSM and RST driver support (or lack thereof) for TRIM and the SSD optimizer toolbox. Also read your thread (74253). Hope Intel responds.

           

          Obviously I need to do some more research. Will the new RST drivers  work on Intel's DP55KG motherboard? I'd never heard of Station-Drivers before. Looks like a French website. Do they have a reputation for getting drivers before everyone else?

          • 17. Re: Intel Matrix Storage + SSD TRIM Pass-through?
            dbm

            There is no vendor nor SSD drive anywhere that has TRIM working with a RAID device. Period.  In order for TRIM to work with RAID, then the hardware vendors producing raid cards would have to update their firmware also.   The only vendor i know that produced a SSD RAID is OCZ and you see where that product is on their spectrum products.

             

            The s/w vendors and h/w vendors haven't gotten TRIM working on single drives reliably.  Why would one think that they have gotten RAID working which is way more complicated.

             

            And the answer is of course Intel is aware, but don't look for it anytime soon.

            • 18. Re: Intel Matrix Storage + SSD TRIM Pass-through?
              Fernando

              steppinwolf schrieb:

               

              Fernando, thanks for the info on MSM and RST driver support (or lack thereof) for TRIM and the SSD optimizer toolbox. Also read your thread (74253). Hope Intel responds.

               

              Obviously I need to do some more research. Will the new RST drivers  work on Intel's DP55KG motherboard? I'd never heard of Station-Drivers before. Looks like a French website. Do they have a reputation for getting drivers before everyone else?

              The v9.5.0.1037 RST drivers are WHQL and are running perfect with my 2x160 GB Intel X25-M SSD's in RAID0. I got a much better performance than with the latest MSM drivers. For further details you may look into this thread, where I have shown my results with these drivers (I'm sorry, it's in German language): http://www.german-winlite.de/wbb/index.php?page=Thread&threadID=3141

              Since your mainboard has a P55 chipset and the RST drivers do support all Intel Southbridges from ICH7 up, you will have no problem to get them installed.

              And yes, Station-Drivers very often publish drivers, which are shown by other companies several weeks later.

              Regards

              Fernando

              • 19. Re: Intel Matrix Storage + SSD TRIM Pass-through?
                davem1979

                Hi,

                 

                Will TRIM work if I use a single Intel 160gb SSD connected to a SATA port on a Gigabyte EX58-UD5 motherboard with ICH10r setup with 2 7200rpm hard drives in RAID 0?  If I want to get TRIM passthrough on the first 6 SATA ports on the motherboard, must I purchase a separate RAID card to control any 7200rpm hard drives I want to RAID?

                 

                Any help would be greatly appreciated.

                • 20. Re: Intel Matrix Storage + SSD TRIM Pass-through?
                  Fernando

                  @ davem1979:

                  As long as your SSD is connected with a SATA Controller, which is using either the generic MS IDE driver PCIIDE.SYS (device name: "Standard Dual Channel PCI IDE Controller") or the generic MS AHCI driver MSAHCI.SYS (different Controller names depending on the chipset), the Trim command will pass to the SSD.

                  • 21. Re: Intel Matrix Storage + SSD TRIM Pass-through?
                    D749

                    Fernando wrote:

                     

                    steppinwolf schrieb:

                     

                    Fernando, thanks for the info on MSM and RST driver support (or lack thereof) for TRIM and the SSD optimizer toolbox. Also read your thread (74253). Hope Intel responds.

                     

                    Obviously I need to do some more research. Will the new RST drivers  work on Intel's DP55KG motherboard? I'd never heard of Station-Drivers before. Looks like a French website. Do they have a reputation for getting drivers before everyone else?

                    The v9.5.0.1037 RST drivers are WHQL and are running perfect with my 2x160 GB Intel X25-M SSD's in RAID0. I got a much better performance than with the latest MSM drivers. For further details you may look into this thread, where I have shown my results with these drivers (I'm sorry, it's in German language): http://www.german-winlite.de/wbb/index.php?page=Thread&threadID=3141

                    Since your mainboard has a P55 chipset and the RST drivers do support all Intel Southbridges from ICH7 up, you will have no problem to get them installed.

                    And yes, Station-Drivers very often publish drivers, which are shown by other companies several weeks later.

                    Regards

                    Fernando

                     

                    So are you saying that these RST drivers will pass TRIM through to a RAID array?

                    • 22. Re: Intel Matrix Storage + SSD TRIM Pass-through?
                      Fernando

                      D749 schrieb:

                       

                      So are you saying that these RST drivers will pass TRIM through to a RAID array?

                      I don't know, if the already available RST drivers v9.5.0.1037 do pass the TRIM command, but I expect, that we will see new RST drivers in the near future, which will support TRIM.

                       

                      Since a lot of users with Intel Postville SSD's are interested in this question, I have startet this thread: http://communities.intel.com/message/75320#75320, but I didn't yet get any answer from Intel.

                       

                      Regards

                      Fernando

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