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Dedicated, fully utilized 1 gigabit link should be getting better than quarter terabyte (250 GB) per hour. If not, you have a bottleneck. Check link speed and utilization of all IP and storage network links. Both physical and virtual. Plus disk, CPU, and firewall utilization. Sample a small packet capture to check that IP is performing optimally. ...


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MTBF is just a statistic. This will not help you with what you're trying to predict. In my experience with various disks from various manufacturers over the course of 20 years, Enterprise grade equipment generally lasts far longer than you ever want to even look at it in a typical environment. Yes, you will always have that 10% failure rate of everything, ...


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FYI - Fiigured I'd do a quick test to rule out the fully booted Windows environment as the source of the problem. So I launched into the Windows pre-boot installation environment and, unsurprisingly, the Unity LUN was instantiated and I was able to see all four instances of the disk there (one instance per path). I went ahead and reinstalled Windows Server ...


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It's obviously that DAA is associated only with RAID arrays since it is a redundant array of the independent disks. As per MTBF, here is some information from Hitachi: "MTBF target is based on a sample population and is estimated by statistical measurements and acceleration algorithms under median operating conditions. MTBF ratings are not intended to ...


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Mean time between failures of 1.6 million hours is 182 years, meaning that if you run 182 drives for a year very likely at least one will fail. Annual failure rate is the inverse of this, in "failures per hour" units, annualized. Vendors may be overstating MTTF: Backblaze 2018 data suggests 1.25% annual failure rate or about 110 year MTBF ServeTheHome ...


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Nothing is a silver bullet. Build versus buy a shared storage array is a matter of operational preference more than anything. Either can be sized to most requirements, and either can provide block, file or object storage. Build your own multi node solution such as with Ceph or Gluster gives you control of the storage software and hardware. It may have a ...


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