1. Davvo

    Dig the IOPS

    I get the feeling that most of us (myself included) rely too much on the 250 IOPS value used as reference in iX's ZFS Pool White Paper, so I wrote this bit in order to clarify things a tad. IOPS stands for input/output operations per second and represents how many read and write operations a...
  2. T

    Benchmark on Windows 2016 bhyve VM

    Hi I was wondering if anyone could explain to me why the attached image benchmarks on my Windows Server 2016 is so low. Freenas system: Supermicro SuperServer 2027PR-DC0TR Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz 128 GB RAM The VM_TANK: 2 mirrored vdevs with 2 x SanDisk SDSSDH31000G I have...
  3. Steven Sedory

    SAN Capable of 240 VMs, each assuming will use same IOPS of single 7.2K disk

    Our goal: to make a SAN able to provide storage, at, on average, the speed of a single 7.2K disk, for up to 120 VMs Exception: some VMs on this system will use a bit more, but I believe the above is a good starting point for what we're trying to accomplish Plot: we're building a three node...
  4. raid40000

    raidz using one or more (striped) vdevs

    I have a new system built (thanks for verifying the hardware specs btw) with 12 drives, mixing SAS and SATA controllers, the board is a Supermicro that allows up to 16 drives in total. - RAM on the system is maxed out. 32 to 64GB RAM. No SSD caches of any kind for ZLOG/ZIL,etc. Now the system...