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Tip of the Day: Optimizing Storage Configuration for Better Performace

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  • 1.  Tip of the Day: Optimizing Storage Configuration for Better Performace

    Posted 05-01-2014 07:11:00 PM
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    • Initial storage equal to the size of the physical source databases. For high redo rates and/or high DB change rates, allocate an additional 10-20% storage.
    • Add storage when storage capacity approaches 30% free
    • Use physical LUNS allocated from storage pools or RAID groups that are configured for availability
    • Never share physical LUNs between the Delphix Engine and other storage clients.
    • Keep all physical LUNs the same size. Add new storage by provisioning new LUNs of the same size.
    • Provision storage using VMDKs or RDMs operating in virtual compatibility mode.
    • VMDKs should be Thick Provisioned, Eager Zeroed. The underlying physical LUNs can be thin provisioned.
    • Physical LUNs used for RDMs should be thick provisioned. 
    • Measure or estimate the required IOPS and manage the storage disks to provide this capacity. It is common to use larger numbers of spindles to provide the IOPS required. 
    • Physical LUNs carved from RAID 1+0 groups or pools with dedicated spindles provide higher IOPS performance than other configurations
    • Maximize Delphix Engine vRAM for a larger system cache to service reads