1 2 Previous Next 15 Replies Latest reply on Dec 19, 2009 4:25 AM by petyasb

    Good TRIM setup for a X25-M G2 SSD

    CZZ

      Appreciate any corrections/additions:

       

      Computer BIOS set to AHCI

       

      SSD firmware that supports TRIM:
         02HA firmware or newer
      Have partition alignment:
         Create first partition with Win 7
         http://forums.techpowerup.com/showthread.php?t=107126
         http://sqlblog.com/blogs/kevin_kline/archive/2008/10/08/how-to-improve-application-and-database-performance-up-to-40-in-one-easy-step.aspx
      Do  over-provisioning:
         Leave 20% of disk space as unpartitioned for controller’s use
         http://www.anandtech.com/storage/showdoc.aspx?i=3667
      Use Win 7 with the following:
         Intel’s SSD Optimizer s/w
            Is part of the Intel SSD Toolbox download
            Win 7 will use it automatically
         Microsoft’s AHCI disk driver:
            msahci
         Microsoft’s SATA controller driver:
            Standard AHCI 1.0 Serial ATA Controller

        • 1. Re: Good TRIM setup for a X25-M G2 SSD
          Dverez

          You don`t have to follow the first 2 links because Win Vista and Win7 can make the partition perfect itself.

          After a clean install of Win7 you can use TRIM without install Intel`s SSD Optimiser software.

          If you use Win Vista you have to use Intel`s SSD Optimiser software to make TRIM working.

          • 2. Re: Good TRIM setup for a X25-M G2 SSD
            BDS73

            Quote: Do  over-provisioning:  Leave 20% of disk space as unpartitioned for controller’s use

             

            Why would you want to do this if you have trim support?  The whole purpose of trim is to remove unwanted files leaving free space on the drive.  All you are doing is lopping off valuable drive capacity that you paid good $$ for...

            • 3. Re: Good TRIM setup for a X25-M G2 SSD
              CZZ

              "After a clean install of Win7 you can use TRIM without install Intel`s SSD Optimiser software."

               

              Do you have a reference supporting that comment?

              • 4. Re: Good TRIM setup for a X25-M G2 SSD
                CZZ

                "Quote: Do  over-provisioning:  Leave 20% of disk space as unpartitioned for controller’s use

                Why would you want to do this if you have trim support?  The whole purpose of trim is to remove unwanted files leaving free space on the drive.  All you are doing is lopping off valuable drive capacity that you paid good $$ for..."

                 

                From: http://www.anandtech.com/storage/showdoc.aspx?i=3667&p=3

                 

                Performance in a TRIM enabled system is now determined not by the number of invalid blocks on your SSD, but rather the amount of free space you have. I went into a deep explanation of the relationship between free space and the performance of some SSDs here.

                 

                TRIM will make sure that you don’t have to worry about your drive filling up with invalid data, but it doesn’t skirt the bigger issue: dynamic controllers see their performance improve with more free space.

                 

                My rule of thumb is to keep at least 20% free space on your drive, you can get by with less but performance tends to suffer. It doesn’t degrade by the same amount for all drives either. Some controllers are more opportunistic with free space (e.g. Intel), while others don’t seem to rely as much on free space for improved performance. Addressing performance degradation as drives fill up (with valid data) will be one of the next major advancements in SSD technology.

                • 5. Re: Good TRIM setup for a X25-M G2 SSD
                  Dverez

                  Yes, I`ve reference here. In the first article.

                  "Your best bet is to install Windows 7 with your I/O controller in AHCI mode (for Intel chipsets) and don't install any storage drivers."

                  • 6. Re: Good TRIM setup for a X25-M G2 SSD
                    CZZ

                    Your reference is discussing "passing the TRIM instruction to SSDs".

                    That is only part of the the process.

                     

                    From: intel_ssd_toolbox_fqa.pdf
                    "The Intel SSD Optimizer is the tool that implements Trim functionality."

                    • 7. Re: Good TRIM setup for a X25-M G2 SSD
                      smoothmole

                      Didn't someone else answer this in another one of your posts?  Are you purposely trying to mislead people?  Here is a reference from the same document you are quoting - AGAIN!  the Toolbox is not required to get TRIM if using the

                      Microsoft* AHCI driver and windows 7.

                       

                      Intel

                      ® SSD Toolbox OS Requirements Matrix Operating System

                      Storage Driver

                      Execution Environment

                      Microsoft Windows* 7

                      Microsoft* AHCI

                      Native OS support (Intel

                      ® SSD Toolbox not required)

                      Microsoft Windows 7

                      Intel

                      ® Matrix Storage Manager**

                      Intel

                      ® SSD Toolbox required

                      Microsoft Windows Vista* or XP

                      Microsoft AHCI or Intel

                      ® Matrix Storage Manager

                      Intel

                      ® SSD Toolbox required

                      • 8. Re: Good TRIM setup for a X25-M G2 SSD
                        petyasb

                        sorry i'm kinda confused: i'm gonna use SSD under Windows XP, so i'll need the toolbox, right?

                        can i use the old version or i have to wait for release of the new one (and when it's gonna be)?

                        do i have to enable ACHI mode anyway (it's disabled now) for TRIM support? can it damage the whole data on my HDD or it just make the current OS (Windows XP) unloadable (i mean enabling ACHI in the MB bios)?

                        • 9. Re: Good TRIM setup for a X25-M G2 SSD
                          BDS73

                          Yes you need to use the Optimizer tool found within the Intel SSD Toolbox to implement trim on XP (and Vista).  For XP you can use the old version of the Toolbox since Windows XP does not support OS restore points.  For Vista or Win7 you should wait for the new version of the Toolbox which contains a fix in the Optmizer that will not delete OS restore points.

                           

                          You do not have to be in AHCI mode to use trim however AHCI mode is highly recommended on Intel SSD's in order to take advantage of NCQ performance beneifit and DIPM (Device Initiated Power Manangement) features that only get enabled when in AHCI mode.  You can switch to AHCI mode in BIOS and reboot however if AHCI drivers were not intalled at the time of XP install you will most likely get a BSOD and will have to go back into BIOS and take it out of AHCI mode.

                          • 10. Re: Good TRIM setup for a X25-M G2 SSD
                            petyasb

                            thanx for info, i tried to install Windows 7 first, but now have to go back to XP, but HDDErase doesn't work for me (just freezes, don't know why)

                            is there other good way to erase SSD? can I do it on another computer?

                             

                            and it seems to me the old SSD Toolbox doesn't work with the new fixed firmware, so i have to wait for the new one, hopefully it comes this year...

                            • 11. Re: Good TRIM setup for a X25-M G2 SSD
                              dokh22
                              HDDErase doesn't work for me (just freezes, don't know why)

                              What version of HDDErase are you using?  Try 3.3 if you haven't already.  Also, is your bios set to IDE when you attempt to run HDDErase?

                              • 12. Re: Good TRIM setup for a X25-M G2 SSD
                                petyasb

                                my bios is set to IDE and i tried some bootable 3.3 version

                                • 13. Re: Good TRIM setup for a X25-M G2 SSD
                                  dokh22

                                  I'm out of ideas!

                                  • 14. Re: Good TRIM setup for a X25-M G2 SSD
                                    Ziggy

                                    petysab, It sounds like I had the same problem with HDDErase as yourself. It would hang indefinately at the stage where it was scanning for drives. This was with the controller set to IDE mode. I recently replaced a RAID0 Raptor setup with a single 160GB SSD, added a large storage drive, and now HDDErase works. So in this case it looks like the initial problem may have been with it being unable to detect the RAID volume as two separate drives in IDE mode. So four drives, two in RAID, was a no go. Four drives, all single, works as advertised. Nothing else was changed on the system, just the drives. Don't know if this applies to you or not but thought it was worth mentioning just in case you were also running RAID or some other exotic drive configuration. This was with v3.3 also and the same DOS boot disk.

                                     

                                    and it seems to me the old SSD Toolbox doesn't work with the new fixed firmware, so i have to wait for the new one, hopefully it comes this year..

                                     

                                    It does actually work, provided you have 02HA or 02HD firmware. The Toolbox can cause problems with the Windows System Restore feature but TRIM is implemented. Can you provide some specifics of your problem with the Toolbox?

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