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    What is considered 'cheap hw raid' vs 'good hw raid'

    SAM-SD
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    • MattSpeller
      MattSpeller last edited by MattSpeller

      SAM Link blast in 3...2.....1.........

      Edit: shit, he beat me lol

      1 Reply Last reply Reply Quote 3
      • scottalanmiller
        scottalanmiller @momurda last edited by

        @momurda said in What is considered 'cheap hw raid' vs 'good hw raid':

        Say you spend a few hundred bucks on a SuperMicro server mobo with built in RAID on the mobo. Is that fakeraid?

        Can't tell. Sure could be. Depends on what it is. the question is if it is hardware or not. FakeRAID isn't hardware RAID at all, all RAID is in the software instead.

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        • BRRABill
          BRRABill @scottalanmiller last edited by

          @scottalanmiller said

          Good hardware RAID:

          • Good, enterprise vendor like LSI or Adaptec
          • Cache of at least 512MB
          • Support for a wide variety of RAID levels
          • Fast CPU or ASIC
          • Can be swapped out in case of failure

          Under those guidelines, why wouldn't the PERC H310 qualify?

          coliver scottalanmiller 2 Replies Last reply Reply Quote 0
          • coliver
            coliver @BRRABill last edited by coliver

            @BRRABill said in What is considered 'cheap hw raid' vs 'good hw raid':

            @scottalanmiller said

            Good hardware RAID:

            • Good, enterprise vendor like LSI or Adaptec
            • Cache of at least 512MB
            • Support for a wide variety of RAID levels
            • Fast CPU or ASIC
            • Can be swapped out in case of failure

            Under those guidelines, why wouldn't the PERC H310 qualify?

            It does, it is a LSI card IIRC.

            scottalanmiller 1 Reply Last reply Reply Quote 1
            • scottalanmiller
              scottalanmiller @BRRABill last edited by

              @BRRABill said in What is considered 'cheap hw raid' vs 'good hw raid':

              @scottalanmiller said

              Good hardware RAID:

              • Good, enterprise vendor like LSI or Adaptec
              • Cache of at least 512MB
              • Support for a wide variety of RAID levels
              • Fast CPU or ASIC
              • Can be swapped out in case of failure

              Under those guidelines, why wouldn't the PERC H310 qualify?

              No. It meets qualification #1 but has no cache and an anaemic CPU that can barely keep up.

              https://mangolassi.it/topic/6375/examining-the-dell-perc-h310-controller

              coliver 1 Reply Last reply Reply Quote 0
              • scottalanmiller
                scottalanmiller @coliver last edited by

                @coliver said in What is considered 'cheap hw raid' vs 'good hw raid':

                @BRRABill said in What is considered 'cheap hw raid' vs 'good hw raid':

                @scottalanmiller said

                Good hardware RAID:

                • Good, enterprise vendor like LSI or Adaptec
                • Cache of at least 512MB
                • Support for a wide variety of RAID levels
                • Fast CPU or ASIC
                • Can be swapped out in case of failure

                Under those guidelines, why wouldn't the PERC H310 qualify?

                It does, it is a LSI card IIRC.

                It is LSI, it's not a serious hardware RAID card. It's only useful for learning, not production.

                1 Reply Last reply Reply Quote 1
                • coliver
                  coliver @scottalanmiller last edited by

                  @scottalanmiller said in What is considered 'cheap hw raid' vs 'good hw raid':

                  @BRRABill said in What is considered 'cheap hw raid' vs 'good hw raid':

                  @scottalanmiller said

                  Good hardware RAID:

                  • Good, enterprise vendor like LSI or Adaptec
                  • Cache of at least 512MB
                  • Support for a wide variety of RAID levels
                  • Fast CPU or ASIC
                  • Can be swapped out in case of failure

                  Under those guidelines, why wouldn't the PERC H310 qualify?

                  No. It meets qualification #1 but has no cache and an anaemic CPU that can barely keep up.

                  https://mangolassi.it/topic/6375/examining-the-dell-perc-h310-controller

                  Oh that's interesting I always thought it was a full on RAID card. Looks like it is just a SAS expander from that thread.

                  scottalanmiller 1 Reply Last reply Reply Quote 1
                  • scottalanmiller
                    scottalanmiller @coliver last edited by

                    @coliver said in What is considered 'cheap hw raid' vs 'good hw raid':

                    @scottalanmiller said in What is considered 'cheap hw raid' vs 'good hw raid':

                    @BRRABill said in What is considered 'cheap hw raid' vs 'good hw raid':

                    @scottalanmiller said

                    Good hardware RAID:

                    • Good, enterprise vendor like LSI or Adaptec
                    • Cache of at least 512MB
                    • Support for a wide variety of RAID levels
                    • Fast CPU or ASIC
                    • Can be swapped out in case of failure

                    Under those guidelines, why wouldn't the PERC H310 qualify?

                    No. It meets qualification #1 but has no cache and an anaemic CPU that can barely keep up.

                    https://mangolassi.it/topic/6375/examining-the-dell-perc-h310-controller

                    Oh that's interesting I always thought it was a full on RAID card. Looks like it is just a SAS expander from that thread.

                    It's basically a high end SAS card with some really basic RAID functions tacked on.

                    1 Reply Last reply Reply Quote 0
                    • momurda
                      momurda last edited by

                      The card i have is LSI Sas 9260-4i
                      http://www.avagotech.com/products/server-storage/raid-controllers/megaraid-sas-9260-4i#specifications

                      Seems to check Scott's checkboxes. Although it is getting a bit old spec wise it seems, it has not been used to my knowledge.

                      This supermicro board would be something i might want for home use.
                      https://www.supermicro.com/products/motherboard/Xeon/C600/X10SRL-F.cfm
                      I dont really know enough about the Intel C612 chipset it has to know if it is good or not.

                      scottalanmiller coliver 2 Replies Last reply Reply Quote 1
                      • scottalanmiller
                        scottalanmiller @momurda last edited by

                        @momurda said in What is considered 'cheap hw raid' vs 'good hw raid':

                        The card i have is LSI Sas 9260-4i
                        http://www.avagotech.com/products/server-storage/raid-controllers/megaraid-sas-9260-4i#specifications

                        Seems to check Scott's checkboxes. Although it is getting a bit old spec wise it seems, it has not been used to my knowledge.

                        Yup, very entry level.

                        1 Reply Last reply Reply Quote 0
                        • coliver
                          coliver @momurda last edited by

                          @momurda said in What is considered 'cheap hw raid' vs 'good hw raid':

                          The card i have is LSI Sas 9260-4i
                          http://www.avagotech.com/products/server-storage/raid-controllers/megaraid-sas-9260-4i#specifications

                          Seems to check Scott's checkboxes. Although it is getting a bit old spec wise it seems, it has not been used to my knowledge.

                          This supermicro board would be something i might want for home use.
                          https://www.supermicro.com/products/motherboard/Xeon/C600/X10SRL-F.cfm
                          I dont really know enough about the Intel C612 chipset it has to know if it is good or not.

                          I've used that card before. It was bought for a white-box server build a very long time ago. Worked really well for what we were doing.

                          1 Reply Last reply Reply Quote 1
                          • scottalanmiller
                            scottalanmiller last edited by

                            @momurda what did you end up using? And how did it end up performing?

                            1 Reply Last reply Reply Quote 0
                            • Emad R
                              Emad R @momurda last edited by

                              @momurda

                              From my experience, you are correct about the fake raid terminology.

                              Fake RAID = is the raid you do on the chip-set level without any dedicated card doing the works, but it fools the operating system that gets installed on-top of it, and does not require any special config from the OS side. I think you can do fake raid for RAID 1 for important workstations like the HR computers for example.

                              Software raid = is like mdadm in Linux or Windows 10 storage spaces, it relies on the OS side for everything.

                              Read RAID or Hardware RAID is getting a good RAID card.

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