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Everything posted by keymoo

  1. Switching on Write-Back caching seems to have improved performance massively. I can live with the risk of power failure (have UPS anyway) until my battery arrives.
  2. I am replacing my four year old VMware ESXi home server and have just copied a windows server 2012 ISO to both machines. My old machine has 4 x1TB HDDs on an adaptec 5405. My new machine has 4x 4TB HDDs on an LSI MegaRAID 9270-8i (no battery backup yet - should arrive soon). Both RAID arrays are configured as RAID-5. The copy using the old adaptec took 1min 10s The copy using the new LSI took 18min 39s I have configured read ahead on, write-through on the LSI. Do you know what could be wrong? Are there any settings on the motherboard I might have overlooked? Other LSI controller settings?
  3. Here are some benchmarks I did with CrystalDiskMark My old server inside a Windows Server 2008 R2 VM with a Thick provisioned disk (Lazy zeroed) My new server inside a Windows Server 2012 R2 VM with a Thick provisioned disk (Eager zeroed)