6 Replies Latest reply on Feb 13, 2012 10:08 AM by ECBowen

    RAID / Storage Rebuild... requesting clarifications for all ;)

    5O'ClockCharlie Level 1

      Hello All,


      I'm replacing the 2 Seagate HDDs out of my home video editing system (CS5) that was previously configured as below, and think its a good time to get clarification on some items I never really resolved after many hours of research, to include where the different items should be installed/stored on a six-HDD system, and/or whether someone in my situation should completely re-think the system setup.


      It was in the following configuration not out of original intention, but due to adding HDDs over time...


      Intel RST/Matrix RAID via ASUS P6T Deluxe V2....


      2 x 1TB Seagate HDDs w/ 3 Partitions

      C: OS & Critical Programs in 100GB Matrix Raid1 Partition,

      D: Saved Adobe Project Files, etc. in 250GB RAID0 Parition

      E: Rendered Outputs, etc. in remaining GBs RAID0 Partition


      2 x 1TB Samsung Spinpoint F3

      F: Scratch files on 2GB RAID0


      2 x 1TB Samsung Spinpoint F3

      G: Original Video / Media Storage on 2GB RAID0


      System Hardware:

      Asus P6T Deluxe V2

      i7 980

      2 x 1TB Seagate 7200 HDDs (changing to something else)

      4 x 1TB Samsung Spinpoint F3 7200 HDDs

      1 x Asus GTX570 Direct CU II (exchanging for a 2-slot card, as this 3-slot won't snap secure due to sata port locations, etc)

      1 x GTX275 for additional video out (haven't actually tried 3 monitors yet)

      24GB Corsair Vengeance RAM

      900w power supply

      Cooler Master HAF Case

      Various external HDDs for periodic backup via eSATA

      Was Vista, ordering Windows 7 Pro


      1) Assuming the hardware remains 6 x 7200RPM HDDs on a P6T Deluxe V2 (sort of want to stay on it, since just got an expensive lga1366 cpu), which only has 6 SATA ports available...

      a) Am I even correct that the best editing configuration for six HDDs is 3 x RAID0 arrays?

      b) If so, how should I distribute the following items across the 3 arrays - OS, Programs, Adobe Projects, Scratch, Outputs, Original Media? I could never figure out from forums which items are the most important to separate from each other on different discs.


      2) Or should I really be modifying the system to allow more than the 6 HDDs at this point?

      a) Now for the really nebulous question... if I need to change, should this be an internal RAID controller card with more ports, or does it need to be an external setup?


      If I really need expanded equipment, I'm ok with things like buying "faster" HDDs (10k or whatever) to replace the 2 Seagates if that's a strong recommendation, spending a bit on better RAID equipment if it is actually worthwhile, but...

      1. Can't spend a thousand to only slightly improve it

      2. Need a setup that someone of moderate computer skill and experience can setup and maintain.



      In particular, the question of how to distribute the various items/ tasks across existing discs is likely of interest to many readers.  This is talked about a lot, but I'm really unclear on how best to distribute them and in what priority if you don't have separate arrays for every item/task.


      Thanks to anyone interested!


      P.S. NOTE to other amateurs w/ my RAID setup... trying to install a large graphics card and somehow resetting the BIOS in the process is what spurred my current possible re-build.  Didn't realize it had reset, continued startup to find Intel RST not functioning, drives renamed and of course RAID0s inaccessible.  Then changing back to RAID setup in BIOS not effective at that point.  Since I have important stuff backed up and wanted to change out some drives anyway, not worth trying to restore the RAID and recover, but you might end up in worse shape.  SUPPOSEDLY if you change the setting back to RAID before OS startup, your arrays and Intel RST will function normally even after the bios reset.

        • 1. Re: RAID / Storage Rebuild... requesting clarifications for all ;)
          Harm Millaard Level 7

          Don't partition disks.


          C: 1 x 1 TB for OS & programs

          D: 2 x 1 TB raid0 for projects & media

          E: 2 x 1 TB raid0 for pagefile, media cache and previews

          F: 1 x 1 TB for exports.

          • 2. Re: RAID / Storage Rebuild... requesting clarifications for all ;)
            5O'ClockCharlie Level 1

            I swear you are a benevolent jaguar, always lurking and ready to pounce at a moment's notice! 


            Information received and agreed.  That's exactly the simple breakdown I've needed to know for years.  I assume the 1TB on C: & F: is not a mandate, but based on already having 1TB HDDs on-hand (and also assuming it should be large enough to keep the disc usage % low)?


            Unless I'm advised otherwise, I suppose I'll just get the "fastest" large capacity non-ssd HDD's I can (maybe velociraptor 600gb?) for the non-RAID single discs then (C: & F: drives), since I want to replace the two seagate HDDs anyway.  I guess both seek/read time and not just throughput/write stats are relevant for the C: OS drive, if not so much for the export F: drive.  For that matter, guess I could just SSD the C: drive, and Velociraptor (or something with more capacity) the F: drive.



            Many Thanks!


            P.S.: Assumed the matrix partition wasn't a good idea... a hold-over from when I only had 2HDDs and was guessing my way along.

            • 3. Re: RAID / Storage Rebuild... requesting clarifications for all ;)
              Harm Millaard Level 7

              I made this breakup based on your available disks, thinking you might want to use these, instead of getting new disks in addition to the ones you have, given current inflated prices of disks. If you had to go out for new disks, I would suggest a Samsung Spinpoint 320 GB F4 for the OS disk. Velociraptors were very good two years ago, but modern day 1 TB or bigger disks are equally fast and getting Velociraptors now does not look attractive at current day prices.


              If you need more capacity, then a dedicated raid controller is the way to go, since all your SATA ports are currently in use.

              1 person found this helpful
              • 4. Re: RAID / Storage Rebuild... requesting clarifications for all ;)
                5O'ClockCharlie Level 1

                Gotcha.  Will look into that F4, and will use a quick 1TB+ for Output (had heard the newest velociraptors were decent, but will defer to Harm).  Was amazed to discover the Thailand issue when pricing more of my previously $60 F3s. 


                Ok, last unanswered question of mine...


                So other forum discussions/research has informed me that SSDs are generally bad for the large file writes involved in the video editing process...


                But, in regard to the latest generation SSDs for OS & Programs, is there any function in the editing process that would be harmed by an SSD's slower writes, assuming it's only used for OS, Programs?  There are some reasonable 180GB+, which is plenty of room for programs in my experience.  If they are in fact a net positive for performance when used in this fashion, perhaps we should be considering them given the currently high HDD costs.

                • 5. Re: RAID / Storage Rebuild... requesting clarifications for all ;)
                  Harm Millaard Level 7

                  Here is some background on SSD's: Adobe Forums: The SSD myth unraveled


                  A SSD like the Crucial M4 256 GB will make the loading of programs significantly faster, but at € 291 it is also a lot more expensive than the 320 GB Samsung F4 at € 71. Current day prices in the Netherlands, including VAT.

                  • 6. Re: RAID / Storage Rebuild... requesting clarifications for all ;)
                    ECBowen Most Valuable Participant

                    With current SSD drives on the Marvell 6Gbs controller or the Sandforce 3 with the right firmware, the write speeds are far better than mechanical drives, even with asynchronous files. You will not suffer from using SSD drives with large files. That information is old at this point and not a factor.