I am building a NAS in RAID 1 (Mirror) mode. Should I buy 2 of the same drive from the same manufacturer? or does it not matter so much?

  • empireOfLove@lemmy.oneEnglish
    3·
    2 years ago

    If I had a dollar for every time rebuilding a RAID array after one failed drive caused a second drive failure in the array in less than 24 hours… I’d probably buy groceries for a week.

      • empireOfLove@lemmy.oneEnglish
        3·
        2 years ago

        Yup. Same age, same design, same failures… and array rebuilds are super intense workloads that often force a lot of random reads and run the drive at 100% load for many hours.

      • teawrecks@sopuli.xyzEnglish
        0·
        2 years ago

        I’ve heard just in general. The resilvering process is hard on all the remaining drives for an extended period of time.

        • Avid Amoeba@lemmy.caEnglish
          0·
          2 years ago

          So you’re saying I should be running RAIDz2 instead of RAIDz1? You’re probably right. 😂

          • teawrecks@sopuli.xyzEnglish
            1·
            2 years ago

            I made that switch a few years ago for that reason.

            That said, as the saying goes, RAID is not a backup, it should never be the thing that stands between you having and losing all your data. RAID is effectively just one really dependable hard drive, but it’s still a single point of failure.

            • Avid Amoeba@lemmy.caEnglish
              1·
              2 years ago

              So you’re saying I should be running JBOD with backups instead of RAIDz1? You’re probably right. 🤭

              • teawrecks@sopuli.xyzEnglish
                1·
                2 years ago

                As long as you’re ok with it being way less dependable, and having to rebuild it from scratch more often 😉.