28 Replies Latest reply on Nov 24, 2010 9:28 PM by Jarliei

    RAID configuration

    Jarliei

      My configuration is two drives, one for the OS and the other for Data.

      Both are in a RAID 0.

      My computer is about to undergo an annual tune up.

      Part of which will be the inclusion of a Scratch Drive.

      From reading the posts, it appears that RAID 0 is not recommended.

      Can you pls share with me your thoughts about the “appropriate” RAID configuration to have?

      As now will be the time for me to change – any advice will be much appreciated.

        • 1. Re: RAID configuration
          Harm Millaard Level 7

          Adobe Forums: To RAID or not to RAID, that is the...

           

          The major drawback from a raid0 is that it lacks redundancy, so if one physical disk fails, you lose all the data on all disks in the raid. If your case that means a complete re-install of OS & programs and loss of your projects and media, unless you have a decent backup procedure.

           

          If I see the reluctance of people to make a clean and fresh install of OS & programs, that may apply to you too and then raid0 is ill advised.

          • 2. Re: RAID configuration
            Jarliei Level 1

            Harm,

            Many thanks for your reply.

            Perusing your postings in ‘Generic Guidelines’ and ‘To Raid or Not‘ my (limited) knowledge suggest that I should have my tech guy implementing the following configuration to my Win7/64 Ultimate / MOBO ASUS P6T Delux V2 / 12 GHz RAM.

             

            My existing configuration.

            Does not have a hardware RAID controller as was suggested but it uses Window’s RAID facility.

            Disk#     Designated            Purpose                                                 Hard Disk

            1 & 2      C:\ Raid (0)            OS / Programmes                                 Barracuda 7200.12 3Gb/s 1TB.

            3 & 4      C:\ Raid (0)            Data & all PP work                               Barracuda 7200.12 3Gb/s 1TB.

             

             

            Upgraded system

            Memory increase from 12 Gb to 24Gb.

            Install ARECA Hardware RAID controller.

             

            Disk#     Designated            Purpose                 Hard Disk

            1              C:\(Raid 3)             OS.                        use existing Barracuda 7200.12 3Gb/s 1TB.

            2              D:\(Raid 3)             Programmes.        use existing Barracuda 7200.12 3Gb/s 1TB.

            3              E:\Raid (3)             Pagefile.                Buy a Barracuda XT 6Gb/s 2 TB.

            4              E:\Raid (3)             Media.                  Buy a  Barracuda XT 6Gb/s 2 TB.

            5              E:\Raid (3)             Projects.               Buy a  Barracuda XT 6Gb/s 2 TB.

            6              E:\Raid (3)             Media Catch.         Buy a  Barracuda XT 6Gb/s 2 TB.

            7              E:\Raid (3)             Previews.             Buy a  Barracuda XT 6Gb/s 2 TB.

            8              E:\Raid (3)             Exports.                 Buy a  Barracuda XT 6Gb/s 2 TB.

                                           

            Have I gone over the top?

            too many disks?

            Correct RAID configuration?

            I would be grateful if you can comment.

            • 3. Re: RAID configuration
              Harm Millaard Level 7

              Sorry, I have some difficulty understanding what you mean.

               

              You say you have two disks, in a raid0. Then you say you have:

               

              My existing configuration.

              Does not have a hardware RAID controller as was suggested but it uses Window’s RAID facility.

              Disk#     Designated            Purpose                                                 Hard Disk

              1 & 2      C:\ Raid (0)            OS / Programmes                                 Barracuda 7200.12 3Gb/s 1TB.

              3 & 4      C:\ Raid (0)            Data & all PP work                               Barracuda 7200.12 3Gb/s 1TB.

               

              Where do drives 3 & 4 come from? How come it is designated the same C:\Raid (0). How many physical disks do you have? Did you partition any of these? That is a bad idea, because partitioning does not improve performance, only increases wear and tear on your disks and usually results in worse performance.

               

              Your intended setup,

               

              Disk#     Designated            Purpose                 Hard Disk

              1              C:\(Raid 3)             OS.                        use existing Barracuda 7200.12 3Gb/s 1TB.

              2              D:\(Raid 3)             Programmes.        use existing Barracuda 7200.12 3Gb/s 1TB.

              3              E:\Raid (3)             Pagefile.                Buy a Barracuda XT 6Gb/s 2 TB.

              4              E:\Raid (3)             Media.                  Buy a  Barracuda XT 6Gb/s 2 TB.

              5              E:\Raid (3)             Projects.               Buy a  Barracuda XT 6Gb/s 2 TB.

              6              E:\Raid (3)             Media Catch.         Buy a  Barracuda XT 6Gb/s 2 TB.

              7              E:\Raid (3)             Previews.             Buy a  Barracuda XT 6Gb/s 2 TB.

              8              E:\Raid (3)             Exports.                 Buy a  Barracuda XT 6Gb/s 2 TB.

               

              should read:

               

              Disk#    Designated       Purpose                                     Hard Disk

              1           C:\                   OS.                                           use existing Barracuda 7200.12 3Gb/s 1TB.

              2           D:\                   Programmes.                             use existing Barracuda 7200.12 3Gb/s 1TB.

              3-8        E:\Raid (3)        Pagefile, media, projects etc.      Buy 6 Barracuda XT 6Gb/s 2 TB configured in Raid3.

               

              I would suggest you add a 150 GB Velociraptor or a 80+ GB SSD solely for OS & programs. No need to waste two 1 TB disks for OS on 1 and programs on another one. Then you can use the two 1 TB disks in a raid0 for pagefile, media cache and previews, since all these data can be reconstructed very easily in case of disk failure and you spread the disk load over two arrays, one a raid0 and the other a raid3.

               

              If you follow this advise, your setup would be:

               

              Disk#    Designated     Purpose                                        Hard Disk

              1          C:\                 OS and programs                           Buy SSD or Velociraptor.

              2+3      D:\Raid (0)      Pagefile, media cache, previews      use two existing Barracuda 7200.12 3Gb/s 1TB.

              4-9       E:\Raid (3)      Media, projects, exports                 Buy 6 Barracuda XT 6Gb/s 2 TB configured in Raid3.

              • 4. Re: RAID configuration
                Jarliei Level 1

                Where do drives 3 & 4 come from?

                I have four physical disks.

                Two of them act in RAID 0 - Array 0000 as Drive C. used as OP and prog's.

                Two of them act in RAID 0 - Array 0001 as Drive D. used for Data, and storage.

                How come it is designated the same C:\Raid (0).

                I can not answer that, my comuter guy did the configuration.

                How many physical disks do you have?

                Four.

                Did you partition any of these?

                No.

                If you follow this advise, your setup would be:


                I shall follow your advice to the letter, should you revisit your advise seeing that I have confused you with the number of hard disks that I have?(four).

                thanks

                • 5. Re: RAID configuration
                  Jarliei Level 1

                  I THINK ( Hope) that the file with the RAID info is enclosed.

                  • 6. Re: RAID configuration
                    Harm Millaard Level 7

                    Thanks for the clarification. Since you have 4 Seagates of 1 TB, it is worth considering to use one for stock footage, music etc. that you occasionally use in your projects and the other one for exports.

                     

                    That means you have an F drive for stock footage, downloads and miscellaneous stuff and a G drive for your exports.

                     

                    Hint: Your attached file requires Word to be installed. Better use a PDF format,. because a number of people, including myself, do not have Word installed on their editing machine, thus requiring one to use a different machine to view your attached file.

                    • 7. Re: RAID configuration
                      Jarliei Level 1

                      Harm,

                      So as to avoid any possible error on my part, I repeat your advice.

                      Disk#    Designated          Purpose                                        Hard Disk

                      1          C:\ 600 GB               OS and programs -      Buy 600GB 32M 10,000RPM SATA3 Backplane- Ready VelociRaptor (WD6000HLHX)

                       

                      2+3      D:\Raid (0) 1 TB        Pagefile, Media Cache, Previews -          use TWO existing B’cuda 7200.

                      4-9       E:\Raid (3) 6TB          Media, Projects -                                   Buy 6 Barracuda XT’s.

                      1          F 2TB                        Stock f’tage, downloads, Misc.               use ONE existing Barracuda 7200.

                      1          G 2TB                       Exports.                                                             use ONE existing Barracuda 7200.

                      My apologies regarding the Word file attachment.

                      Many thanks

                      • 8. Re: RAID configuration
                        Harm Millaard Level 7

                        Completely correct.

                        • 9. Re: RAID configuration
                          Jarliei Level 1

                          Harm,

                          you are a Esquire and a Gentelman.

                          many thanks

                          • 10. Re: RAID configuration
                            jpodlesnik1 Level 1

                            Curious to see 24 SSDs in a RAID array at work? Check this out --

                             

                            http://www.youtube.com/watch?v=96dWOEa4Djs

                            • 11. Re: RAID configuration
                              Harm Millaard Level 7

                              Yeah, that is pretty fast. Wonder what would happen with 48 SSD's, that could easily fit into my case with hot-swappable bays of course. One thing is for sure, bankruptcy.

                               

                              One would only need two Areca ARC-1880iX-24 cards, each with 4 GB cache, each for one array.

                               

                              Using OCZ Vertex-2 400 GB SSD's, you would end up with around 19.2 TB of storage for the meager sum of only € 96,000 plus the drive bays for € 850 plus the Areca controllers with cache for only € 2,700.

                               

                              Everything for less than € 100 K. That's a steal...

                              • 12. Re: RAID configuration
                                jpodlesnik1 Level 1

                                hehehe .. I thought some of you (especially you, Harm) might be tickled by this.

                                 

                                Say, here's an update on my system --

                                 

                                I underestimated the size of my system drive (bought an Intel 80GB SSD, which proved to be just barely enough to hold my Win 7 64-bit and Adobe apps (what was I  thinking?), so I added another 80GB solid state drive (in a  striped RAID 0 array). Also, three 1TB (WD 6GB/sec 64MB cache) drives were added, configured in a RAID 5 array, connected to my Areca ARC-1680 series RAID card.

                                Turns out, on the day  that I shipped it out to the builders, the computer spontaneously rebooted 3 times. I  told the builders of this; they traced it to a faulty 1000 watt power  supply (which they replaced). Good thing I sent it back for the added  hard drives, eh?

                                Anyway, I'm expecting the computer back today, Learned of the ASUS Turbov OC software. Since I don't have the time or inclination to OC on my own via the BIOS, I may autotune through the Asus software. All I want is to edit AVCHD footage easily and to work efficiently in Adobe After Effects.

                                • 13. Re: RAID configuration
                                  Harm Millaard Level 7

                                  I underestimated the size of my system drive (bought an Intel 80GB SSD, which proved to be just barely enough to hold my Win 7 64-bit and Adobe apps (what was I  thinking?)

                                   

                                  With Win7 64 Pro and the MC CS4 and Production Studio CS5 and a lot of other programs, I have difficulty in filling up more than 40 GB, so what else do you have installed?

                                  • 14. Re: RAID configuration
                                    jpodlesnik1 Level 1

                                    Wish I had the full list in front of me (full MS Office, Decklink software, Jing, AGV, LabelMaker software, bunch of utilities, etc What I did learn is every time I burn a DVD, the media cache files (from Encore) load up the system drive. :-O

                                    • 15. Re: RAID configuration
                                      Harm Millaard Level 7

                                      Use a dedicated drive for the media cache. If you have 48 SSD's, there is plenty of space to choose from. Also turn off all power saving options and delete the Hyberfil.sys file. It will save quite a few GB's of space.

                                       

                                      If you have SSD's with the SF-2000 controller, you should not have any problem.

                                      • 16. Re: RAID configuration
                                        jpodlesnik1 Level 1

                                        Ha! No, I don't have 48 SSD drives. Two 80 GB at the moment. :-) Thanks for the tips, Harm. I'm expecting the computer this afternoon. Will perform those changes.  Thanks!  was hoping to OC my i7 930, but after hearing of the heat issues in the last (or recent) batch of cpus, I may just keep it at stock speed. Disappointing. :-(

                                        • 17. Re: RAID configuration
                                          Jarliei Level 1

                                          Harm,

                                          My computer guy is about to complete the upgrading, he ask me to approve the below HDD configuration prior to implementation. This configuration is different to your recommendation in Post 7 above and I am not 100% sure that he knows what he is doing.

                                          He also said that the machine has only six internal HDD bays and the MOBO can only take four(?) I have no idea how come he is showing eight HDD's.I had to argue with him for two days just to get him to agree to increase the RAM from 12 to 24GB.

                                          Can I please ask you to vet this configuration for me?

                                          Many thanks.

                                           

                                           

                                          Asset 48/127 - New   Configuration / Nov 2010 / WIPAvaiability
                                          24 GB RAM Purchase
                                          Disc Bay #HDDConfigurationDesignatedPurpose
                                          11TB Barracuda 7200.12   3Gb/sRAID(1)C:\OS.Existing
                                          21TB Barracuda 7200.12 3Gb/sRAID(1)Existing
                                          31TB Barracuda 7200.12 3Gb/sRAID(1)D:\Media.Existing
                                          41TB Barracuda 7200.12 3Gb/sRAID(1)Existing
                                          52TB Barracuda XT Serial ATA (SATA III) 6Gb/64MB ST32000641AS.RAID(3)E:\Projects.Purchase
                                          62TB Barracuda XT Serial ATA (SATA III)   6Gb/64MB ST32000641AS.RAID(3)Purchase
                                          72TB Barracuda XT Serial ATA (SATA III)   6Gb/64MB ST32000641AS.Single DriveF:\Exports.  Purchase
                                          82TB Barracuda XT Serial ATA (SATA III)   6Gb/64MB ST32000641AS.Single DriveG:\ScratchPurchase
                                          • 18. Re: RAID configuration
                                            Harm Millaard Level 7

                                            I wonder whether that was a clever move by your computer guy. He has now shown to the PR community that he does not know anything about disk setup for a video machine and even less about Raids. It is impossible to create a parity raid with less than three disks. And furthermore he has never heard of drive cages that allow the installation of 3 disks in two 5.25 bays or 5 disks in three 5.25 bays. Finally he comes up with 8 disks while stating that the mobo only has 6 SATA connectors. He expects you to purchase two more disks than can be attached and leave them idle in a closet somewhere? He is crazy.

                                             

                                            Trying to keep the investment cost as low as possible, I suggest:

                                             

                                            1. Purchase a Samsung F4 320 G disk for OS & programs, drive C.

                                             

                                            2. Purchase one extra 1 TB Seagate, so you have 5 identical drives, configure them as a raid5, drive D:

                                             

                                            This uses all the 6 SATA connectors you have. There is no more room for additional disks on the mobo, unless you buy a raid controller card, and it also meets the physical limitations of the case, at least without getting drive cages.

                                             

                                            The D drive in raid5 will be about 3.5 times faster than a single drive and offer you 4 TB net space. With 24 GB of memory, I would leave the pagefile on C, but everything else on D, media, projects, media cache, etc.

                                             

                                            This is by far the easiest and least costly solution.

                                             

                                            If you need more disk space, remind me exactly what case you have and we can look at alternatives. But your Asus P6T Deluxe V2 is indeed limited to 6 SATA ports.

                                             

                                            There may be one more snag in that you already use 1 or 2 SATA ports for DVD burners, in which case you run out of SATA connectors. That leaves you with the option to exchange the SATA burners for PATA ones, or invest in a raid controller.

                                            • 19. Re: RAID configuration
                                              Jarliei Level 1

                                              Harm,

                                              The plot thickens.

                                               

                                              My case is

                                              Antec Titan 650 ATX 650w Server Grade Full Tower Case

                                              shown on

                                              http://www.digiconcepts.com/antec_cases_51.htm

                                               

                                              My MOBO is

                                              P6T Deluxe V2

                                              Shown on

                                              http://www.asus.com.au/product.aspx?P_ID=iRlP8RG9han6saZx&content=download

                                              • 20. Re: RAID configuration
                                                Jarliei Level 1

                                                ..............already use 1 or 2 SATA ports for DVD burners

                                                I have only one DVD burner.

                                                If you need more disk space.............,

                                                can I not have 2TB discs rather then 1TB?

                                                ...............invest in a raid controller.

                                                Feasible.

                                                • 21. Re: RAID configuration
                                                  ECBowen Most Valuable Participant

                                                  If you decide to go with Raid 5 I would take Harm's advice and get the raid controller now anyway. Raid 5 on the onboard controller is not as reliable and the rebuild performance is absolutely horrible. It's like riding a bike in a race with sports cars all around you.

                                                   

                                                  Eric

                                                  ADK

                                                  • 22. Re: RAID configuration
                                                    Scott Chichelli Level 3
                                                    function(){return A.apply(null,[this].concat($A(arguments)))}

                                                    ECBowen wrote:

                                                     

                                                    It's like riding a bike in a race with sports cars all around you.

                                                     

                                                    Eric

                                                    ADK

                                                     

                                                    wow a tech with a sense of humor didint know you had it in ya...

                                                     

                                                    sorry couldnt resist

                                                     

                                                    Scott

                                                    ADK

                                                    • 23. Re: RAID configuration
                                                      Jeff Bellune Level 5

                                                      JCschild wrote:

                                                       

                                                      function(){return A.apply(null,[this].concat($A(arguments)))}

                                                      ECBowen wrote:

                                                       

                                                      It's like riding a bike in a race with sports cars all around you.

                                                       

                                                      Eric

                                                      ADK

                                                       

                                                      wow a tech with a sense of humor didint know you had it in ya...

                                                       

                                                      sorry couldnt resist

                                                       

                                                      Scott

                                                      ADK

                                                      Didn't Eric forbid you from handling support calls?  I'm sure that includes commenting on the real support folks.

                                                       

                                                       

                                                       

                                                      -Jeff

                                                      • 24. Re: RAID configuration
                                                        Scott Chichelli Level 3

                                                        they dont let me do much anymore! surprised they havent banned me from posting yet. i hear they are buying me a spell check and grammer book this Christmas

                                                        • 25. Re: RAID configuration
                                                          ECBowen Most Valuable Participant

                                                          Your Banned

                                                           

                                                           

                                                          Atleast until we get you the book

                                                           

                                                          Eric

                                                          ADK

                                                          • 26. Re: RAID configuration
                                                            Jarliei Level 1

                                                            Eric,

                                                            re your post 21 - thanks.

                                                            I have followed up the suggestion for a card controller and spoke to Areca, they have advised me to use the simplest card in their stable, the ARC-1020, which I’ll purchase, this is the simple bit.

                                                            Regarding RAID configuration their thoughts differ.

                                                            They said “Definitely NO” to RAID(5) on account of that in the event of one disc failure during a “Write” operation, the whole Array of the four disc will have it’s data corrupted.*.

                                                            I was then advised that a configuration of RAID(6) for the four 2TB WDCAVIAR BLACK will provid a lesser net capacity but a greater safer operational environment in the event of one disc failure.*.

                                                            But! they strongly recommend a RAID(10) for the 4x2TB.*.

                                                              * Don’t even THINK to ask me to explain!

                                                            • 27. Re: RAID configuration
                                                              ECBowen Most Valuable Participant

                                                              The corruption they speak of is even more likely with a mirror raid set versus a parity raid set. I am surprised they did not mention that. The simple resolution to data corruption on writing is the parity check. If you have that scheduled regularly,your errors will be detected and resolved. A raid 6 add's the second level parity to compare with the first which further aids the parity verification. The key to a parity raid set is running the parity verifications. As long as you do that, you will be fine.

                                                               

                                                              Eric

                                                              ADK

                                                              • 28. Re: RAID configuration
                                                                Jarliei Level 1

                                                                So what do I do?