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

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    • BRRABillB
      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?

      coliverC scottalanmillerS 2 Replies Last reply Reply Quote 0
      • coliverC
        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.

        scottalanmillerS 1 Reply Last reply Reply Quote 1
        • scottalanmillerS
          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

          coliverC 1 Reply Last reply Reply Quote 0
          • scottalanmillerS
            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
            • coliverC
              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.

              scottalanmillerS 1 Reply Last reply Reply Quote 1
              • scottalanmillerS
                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
                • momurdaM
                  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.

                  scottalanmillerS coliverC 2 Replies Last reply Reply Quote 1
                  • scottalanmillerS
                    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
                    • coliverC
                      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
                      • scottalanmillerS
                        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 RE
                          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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