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    Ram file system

    General pfSense Questions
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    • N
      nikkon last edited by

      Hello.
      I am new here and also new with pfsense.
      I am wandering if is possible to make a File System mounted in RAM and to have also a redundancy with the hdd.I mean to have something like a Raid 0 architecture between the ram-fs and hdd. The propose is to have more speed.
      Thank you in advance.

      pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

      Happy PfSense user :)

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      • GruensFroeschli
        GruensFroeschli last edited by

        There is somewhere a thread which is about this.
        (i just cant find it right now…)

        We do what we must, because we can.

        Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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        • N
          nikkon last edited by

          i already lokk for something like this but i nerev find and that's the reason of my post.

          pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

          Happy PfSense user :)

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          • E
            eri-- last edited by

            more speed on what?

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            • Cry Havok
              Cry Havok last edited by

              Exactly what do you expect a ramdisk (mdfs) to help with?  The OS will already be using all the free RAM it can to cache disk accesses.  Configuring a ramdisk may make matters worse if you don't know what you're doing.

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              • N
                nikkon last edited by

                First thank you for the replay.
                Second i was thinking to pun 2 GB of RAM on this machine, to allocate 1-1,5 for the system use and 512mb for the fsram.
                I want more speed regading the rules execution and maybe the webserver.
                Thank you again for you interest to help me.

                pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

                Happy PfSense user :)

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                • Cry Havok
                  Cry Havok last edited by

                  @nikkon:

                  First thank you for the replay.
                  Second i was thinking to pun 2 GB of RAM on this machine, to allocate 1-1,5 for the system use and 512mb for the fsram.
                  I want more speed regading the rules execution and maybe the webserver.
                  Thank you again for you interest to help me.

                  Which rules (firewall, snort, etc), what webserver?  I really don't think you're going to get any meaningful performance improvement on your firewall.

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                  • N
                    nikkon last edited by

                    firewall rules.
                    I just ask because i know that is possible.
                    thanks again.

                    pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

                    Happy PfSense user :)

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                    • GruensFroeschli
                      GruensFroeschli last edited by

                      A ramdisk wont bring you any performance gain regarding execution-speed of the firewall rules.

                      The only thing i can think of where it would bring something is to have a ram disk as swap partition for a proxy.
                      But… if you have enough ram to have a ramdisk its better to use this ram directly for the proxy (so it does not have to swap).

                      We do what we must, because we can.

                      Asking questions the smart way: http://www.catb.org/esr/faqs/smart-questions.html

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                      • N
                        nikkon last edited by

                        i have a proxy ! ;D
                        THX

                        pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

                        Happy PfSense user :)

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                        • Cry Havok
                          Cry Havok last edited by

                          @nikkon:

                          firewall rules.
                          I just ask because i know that is possible.
                          thanks again.

                          Ok, so, you're going to copy the firewall rules from disk to ramdisk, then again from ramdisk to RAM when they're loaded.  How exactly do you think this will improve things?

                          Can I suggest that you apply the KISS principle.  There are a few things that ramdisks bring benefits for, however unless you're dealing with those and know what you're doing (which, no offence, it doesn't seem like you do) you should trust the OS creators to know what they're doing ;)

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                          • N
                            nikkon last edited by

                            first of all :
                            1. i know that is possible to make an ramfs and it's fast.
                            2. i just ask if is possible to make it on pfsense.
                            3. i just think that will be faster if i pust some files there (ex proxy)
                            4. i have a test machine with pfsense istalled and i will try to make this.If it's will work ok, if not it's no problem.

                            pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

                            Happy PfSense user :)

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                            • Cry Havok
                              Cry Havok last edited by

                              Can I suggest you go re-read this thread.  Putting the proxy's cache on ramdisk will NOT improve the proxy's performance.  The proxy could better use that RAM for memory caching.

                              If you really want to go down this pretty pointless route, check the FreeBSD man pages and handbook for documentation on the required commands.

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                              • N
                                nikkon last edited by

                                ok. sory for the reading mistake.

                                pfsense 2.3.4 on Supermicro A1SRi-2758F + 8GB ECC + SSD

                                Happy PfSense user :)

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