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  • Disk write cache enabled or disabled

    what does GV recommend for Edius users in terms of hard disks used for video

    should "write caching on the disk" be enabled or disabled?

    all my systems use UPS, so power failure would not be an issue
    Anton Strauss
    Antons Video Productions - Sydney

    EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

  • #2
    Leave it enabled. By default, XP SP2 and Vista have it enabled.

    I remember back in the day (Early 2000) there were problems with these settings and older computers, now everything is much better.

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    • #3
      after inserting all Sata II Seagate drives in my new Supermicro, the write cache was off by default, and currently is still off

      maybe a Seagate thing?
      Anton Strauss
      Antons Video Productions - Sydney

      EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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      • #4
        If you have the drives installed, then install a fresh version of XP Pro, disk cache is enabled by default.

        Don't worry about it, enable it.

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        • #5
          I have enabled it on all drives and then rebooted

          now when I check, all drives have the tick removed and it is greyed out on all Sata II drives, so I can no longer enable it

          something strange going on here
          http://www.videoproductions.com.au/e...rite-cache.gif

          however, the two Mobile Rack IDE drives are still enabled and not greyed out

          must be something to do with Sata II
          Anton Strauss
          Antons Video Productions - Sydney

          EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

          Comment


          • #6
            Check if there is a SATA150 pin that's enabled on the drives, usually you remove that pin and it turns into SATA 3.0Gbps. Check the drive manual, maybe this is the problem.

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            • #7
              I have removed the jumpers on all drives before I installed them, this is the first thing I do
              Anton Strauss
              Antons Video Productions - Sydney

              EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

              Comment


              • #8
                Originally posted by antonsvideo View Post
                I have enabled it on all drives and then rebooted

                now when I check, all drives have the tick removed and it is greyed out on all Sata II drives, so I can no longer enable it
                I assume that your boot drive is also Sata II, when you installed Windows XP did you enable the "Enhanced AHCI" driver for your drives ? and did you install XP using the "F6" key and loaded the AHCI drivers to get full speed on your Sata II drives ?

                If no Bios option is set and no AHCI Drivers are loaded you are likely to get this "Disc Write Cache" issue.

                If no drivers were installed there is NO fix to load them now, you'll need to perform a format C.

                Note : Windows vista has these drivers as a standard on the disc, this is a post XP driver.
                You can easily use Nlite (freeware) to slipstream e.g. AHCI drivers, Mobo Drivers, SP3 etc. in to your XP Setup disc.
                Last edited by SoundFreak; 05-09-2008, 07:23 AM.

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                • #9
                  Originally posted by SoundFreak View Post
                  I assume that your boot drive is also Sata II, when you installed Windows XP did you enable the "Enhanced AHCI" driver for your driver ? and did you install XP using the "F6" key and loaded the AHCI drivers to get full speed on your Sata II drives ?

                  If no Bios option is set and no AHCI Drivers are loaded you are likely to get this "Disc Write Cache" issue.

                  If no drivers were installed there is NO fix to load them now, you'll need to perform a format C.

                  Note : Windows vista has these drivers as a standard on the disc, this is a post XP driver.
                  You can easily use Nlite (freeware) to slipstream e.g. AHCI drivers, Mobo Drivers, SP3 etc. in to your XP Setup disc.
                  yes to all

                  disk speed is great on all drives

                  C drive does 105mb/sec

                  I went to the registry and checked the UserWriteCache parameter for each drive and all of them were set to value 1 (on)

                  I set them all to value 0 (off) and rebooted

                  now I can select the write cache option again, so greyed out with no tick may simply mean that it is on already)

                  note, my drives are striped raid 0

                  I was talking to a disk expert and he said that enabling write cache on video drives is meaningless since video files are usually larger than the cache, so the cache does not get used in any case
                  Anton Strauss
                  Antons Video Productions - Sydney

                  EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

                  Comment


                  • #10
                    Check if there is a SATA150 pin that's enabled on the drives, usually you remove that pin and it turns into SATA 3.0Gbps
                    My ASUS MoBo is 3.0gb/s capable, but the drives have the jumper in place to limit speed to 150Mb/s, does this mean I should remove the jumpers for increased disk speed?
                    System 1 - Win7 64/Edius 5.51/Asus P8/8Gb RAM/RAID0/i7 2600K OC/nVidia Quadra 600
                    System 2 - Win XP/Edius v4.61/Asus P5 DH Deluxe/4Gb RAM/RAID0/Quad Core 2.4Ghz Q6600/nVidia 9800GT 512Mb/NXHD + other stuff

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                    • #11
                      the jumper was added by the factory so that the drive is seen and detected by ancient computers, basically it was added to prevent a flood of hard disks being returned because they appear to be dead, when in fact the PC is to old for SATA II

                      so, yes, remove the jumper
                      Anton Strauss
                      Antons Video Productions - Sydney

                      EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

                      Comment


                      • #12
                        Thanks for the info, jumpers now removed.
                        Maybe this will rid this PC of the "disk too slow" error it suffers from?
                        System 1 - Win7 64/Edius 5.51/Asus P8/8Gb RAM/RAID0/i7 2600K OC/nVidia Quadra 600
                        System 2 - Win XP/Edius v4.61/Asus P5 DH Deluxe/4Gb RAM/RAID0/Quad Core 2.4Ghz Q6600/nVidia 9800GT 512Mb/NXHD + other stuff

                        Comment


                        • #13
                          that could certainly have been a cause, your disk should be twice as fast now
                          Anton Strauss
                          Antons Video Productions - Sydney

                          EDIUS X WG with BM Mini Monitor 4k and BM Mini Recorder, Gigabyte X299 UD4 Pro, Intel Core i9 9960X 16 Core, 32 Threads @ 4.3Ghz, Corsair Water Cooling, Gigabyte RTX-2070 Super 3X 8GB Video Card, Samsung 860 Pro 512GB SSD for System, 8TB Samsung Raid0 SSD for Video, 2 Pioneer BDR-209 Blu-ray/DVD burners, Hotswap Bay for 3.5" Sata and 2.5" SSD, Phanteks Enthoo Pro XL Tower, Corsair 32GB DDR4 Ram, Win10 Pro

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                          • #14
                            The interface speed is twice as fast now, but even the 1.5GB/sec SATA speed is more than sufficient to saturate the sustained transfer rate of the hard drive.

                            I'm sure the system will benefit from the removal of the jumper, but I wouldn't expect a night-and-day difference.

                            Comment


                            • #15
                              Originally posted by antonsvideo View Post
                              I was talking to a disk expert and he said that enabling write cache on video drives is meaningless since video files are usually larger than the cache, so the cache does not get used in any case
                              For video it doesn't necessarily help. But it doesn't really hurt either, especially if you have battery backup.

                              It can make a huge difference when there are lots of small writes to the drive. It's like doing a large shopping trip at the store one time instead of doing multiple small trips.

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