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    Proliant buying advice

    Scheduled Pinned Locked Moved IT Discussion
    71 Posts 5 Posters 21.7k Views
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    • scottalanmillerS
      scottalanmiller
      last edited by

      I can't figure out what "ar" stands for but it appears that it means that it is a mezzanine card rather than an add on card.

      C 1 Reply Last reply Reply Quote 0
      • C
        Carnival Boy @scottalanmiller
        last edited by

        @scottalanmiller said:

        Never Internal FIO

        Isn't that what I'm seeing here:

        raid2.GIF

        DashrenderD 1 Reply Last reply Reply Quote 0
        • scottalanmillerS
          scottalanmiller
          last edited by

          Hmm.... not sure then. HP is bad about listing their acronyms anywhere.

          1 Reply Last reply Reply Quote 0
          • C
            Carnival Boy @scottalanmiller
            last edited by

            @scottalanmiller said:

            I can't figure out what "ar" stands for but it appears that it means that it is a mezzanine card rather than an add on card.

            Ah, I see. It does look different:

            raid3.GIF

            I'm advised that I can't currently get a DL380 without a P440ar/2GB, so it would be a case of throwing it away and replacing it with a P440/4GB. I'd effectively be buying two cards, even though I only used one. I'm not sure it's worth it.

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            • C
              Carnival Boy
              last edited by

              Is it possible to simply upgrade the RAID controller at a later date if performance becomes a problem, or does that incur a world of pain?

              scottalanmillerS 1 Reply Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller @Carnival Boy
                last edited by

                @Carnival-Boy said:

                Is it possible to simply upgrade the RAID controller at a later date if performance becomes a problem, or does that incur a world of pain?

                Generally pretty painless. Since they are both SmartArrays.

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                • C
                  Carnival Boy
                  last edited by

                  Cool. I might do that, then. Though those kinds of upgrades always scare me.

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                  • scottalanmillerS
                    scottalanmiller
                    last edited by

                    2GB of cache is still four times what you have now and twice what most anyone else has.

                    1 Reply Last reply Reply Quote 0
                    • DashrenderD
                      Dashrender @Carnival Boy
                      last edited by

                      @Carnival-Boy said:

                      @scottalanmiller said:

                      Never Internal FIO

                      Isn't that what I'm seeing here:

                      raid2.GIF

                      I'd guess in this case Int means it's an internal card, though not sure why they would need to specify that.

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

                        @Dashrender said:

                        I'd guess in this case Int means it's an internal card, though not sure why they would need to specify that.

                        Internal SAS connections.

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

                          @scottalanmiller said:

                          @Dashrender said:

                          I'd guess in this case Int means it's an internal card, though not sure why they would need to specify that.

                          Internal SAS connections.

                          So you're ditching what you thought FIO meant?

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

                            @Dashrender said:

                            So you're ditching what you thought FIO meant?

                            @Carnival-Boy already showed that I had to be wrong on that.

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

                              @scottalanmiller said:

                              @Dashrender said:

                              So you're ditching what you thought FIO meant?

                              @Carnival-Boy already showed that I had to be wrong on that.

                              I was finding a way for you to be right on that, but that Int meant the card was internal...

                              1 Reply Last reply Reply Quote 0
                              • scottalanmillerS
                                scottalanmiller
                                last edited by

                                Can't really have an external SmartArray 🙂

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

                                  @scottalanmiller said:

                                  Can't really have an external SmartArray 🙂

                                  Yeah - it seems like an unnecessary descriptor to me, but as Carnival-Boy noted, perhaps it's something entirely different.

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                                  • C
                                    Carnival Boy @JaredBusch
                                    last edited by

                                    @JaredBusch said:

                                    Using the numbers in the post @scottalanmiller linked a few days back it looks like this.

                                    8x drives:
                                    nCHEJS0.jpg

                                    16x drives:
                                    pT1di5M.jpg

                                    Wow. Thanks. My quick, early morning calculations say that most economical solution is to run lots of low capacity, slow disks (ie 300gb 10k). Here is the comparison of different disks, all giving 4.8TB raw storage. You can see that the best bang for your buck (lowest cost per IOPS) is the 300gb 10k disk. Most Gen9 Proliants support 24 SFF disks, so there is plenty of room. There would be an additional cost of powering the extra disks, but I assume that is minimal, plus double the disks means double the failures. What do you think I should do?

                                    raid4.GIF

                                    scottalanmillerS 1 Reply Last reply Reply Quote 0
                                    • C
                                      Carnival Boy
                                      last edited by

                                      Had another look at SSDs. I didn't realise HP's "Enterprise Value" line was so cheap. $800 for 300GB. That isn't much different from 15k SAS. I could get a couple of these and still have money left over to buy a larger array of 10k SAS or 7.5k Midline SAS to cover my other VMs.

                                      Can anyone explain the difference between "Enterprise Value", "Enterprise Mainstream" and "Enterprise Performance", apart from $$$? Who makes them?

                                      Urrgh! Too many choices! I hate shopping!!

                                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                                      • scottalanmillerS
                                        scottalanmiller @Carnival Boy
                                        last edited by

                                        @Carnival-Boy said:

                                        Wow. Thanks. My quick, early morning calculations say that most economical solution is to run lots of low capacity, slow disks (ie 300gb 10k).

                                        That is often the case.

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                                        • C
                                          Carnival Boy
                                          last edited by

                                          Read this on HP.com: "Because of the limitations of endurance, SSDs—unlike disk drives—have a limited service life in a
                                          server."

                                          That service life is listed at just three years. Three years! I could make an assumption that the cost to replace in three years time will be considerably lower than the current cost, but I'm not sure I want to go there.

                                          scottalanmillerS 1 Reply Last reply Reply Quote 0
                                          • scottalanmillerS
                                            scottalanmiller @Carnival Boy
                                            last edited by

                                            @Carnival-Boy said:

                                            Had another look at SSDs. I didn't realise HP's "Enterprise Value" line was so cheap. $800 for 300GB.

                                            When it comes to IOPS, SSDs are the value option. It's capacity where they are still lacking.

                                            1 Reply Last reply Reply Quote 0
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