Modelling Maglib storage performance

Last post 06-22-2011, 4:24 PM by swiftangelus. 0 replies.
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  • Modelling Maglib storage performance
    Posted: 06-22-2011, 4:24 PM

    Hello all,

    I am looking into how best to model storage system performance capabilities so that we can confirm with storage vendors capabilities before a purchase. All for version 9 using DDB, but the DDB is on local RAID0 disk. This performance query is just for maglib performance.

    Key things that we will need to provide are:

    Read/Write %

    % Sequential workload

    Block Size

    Disk Type, size and quantity.

    I am happy with the last 2 but I guess what I am hoping to have advice on is what values are recommended under a few scenarios for % read/write and % sequential workload:

    Daily rehydrated copies

    Weekly rehydrated copies

    Monthly rehydrated copies

    SILO used with replicated data (ie no need for daily, weekly copies) - I know the data is trickled to tape over the time of the SILO lifespan in its deduped form but how does this show up in % read/write and workloads?

    Thanks in advance.

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