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  • Jewel Store Components and features

    Service Tool

    Gui tool for service or test one Jewel-Store box. Started from Connect-Tool Basic features. Command line (cli) to storage nodes, ...
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    Text Multi Color Search‏

    Used for searching and analyzing jewel-store data storage logs files Integrated in jewel-store service-tool Each search pattern in different color ...
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    Connect Tool‏

    Used for service test and debug jewel-box Create Service-tool for specific box Maintain list of boxes with box info and ...
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    Data Storage main software packages‏

    Js storage-node-code (java) Js  linux-test-host-code - same code as storage node code service  gui application for test and service (java) ...
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    Debug Counters

    Performance measure  i.e.   IO Per second Rare path Errors Code Debug Coverage Example screen shot shows coverage of rebuild types ...
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    Node Software Architecture‏

    Main Sub systems Volumes (Including replication, snap, lun) Raid Devices Device-Drivers ...
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    volume clone‏

    unique implementation unlimited clones for same volume. unlimited clone on clone ...
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    Raid6‏

    Recovery from 2 failed disk drive of same disk-group. Variable raid group size, up to 14+2 Support for magnetic drive ...
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    Thin provisioning raid allocation‏

    Space allocation per demand for a volume. Allocation on destage of first stripe of stripe-group Allocation from available stripe-group of ...
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    Enclosure storage node connectivity‏

    Each storage-node is connected to all disk-enclosures. Disk enclosures:  1 to 6 Storage nodes: 3 or more. Storage nodes connected ...
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    Logger and grepMerge‏

    The logger is the main debug tool of jewel-store Each storage node logs events in separate files. The logged data ...
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    Migration

    Migration use: Replacing old box with a new box. For code upgrade where meta data is very different. For each ...
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