Re: Upgrading VMS Cluster to DS10 or ES40

From: John Brandon (brandon_at_dalsemi.com)
Date: 08/13/03

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    Date: Wed, 13 Aug 2003 09:11:43 -0500

    > > Our current cluster is DEC7610 + DEC2100 + HSJ40/StorageWorks. We're
    > > considering the cheapest way to migrate to 21st century and maintain the
    > > redundancy of the cluster. Any suggestions considering DS10 vs. ES40? -
    > > Thanks.
    >
    > ES40. You can put a CIPCA-BA (PCI-CI port) in the ES40, but you can't put
    > one in a DS10 (or, at least, it's not supported).
    >
    > Oh, by the way, when your 21st century friends start asking "Why don't you
    > upgrade to SAN", you can say that you've been using one ever since you
    > started using your HSJ40, and that they work, and work well.
    >
    > At our shop, we've been using SAN technology since installing HSC50 (yes,
    > that's hsC50) over 15 years ago.
    > Stu

    ES40 or better.

    We have a cluster of DS20's and ES40 and are at the crossroads of upgrades for
    performance reasons - pain in the ars. The DS20 very limited - by reason of
    default so the DS10 would also be.

    You can, as Stu suggests, stay on your current SAN. And that will be a low cost
    SAN. However, the CI will pale in performance comparison to the HSG80's
    coupled with either ESA (old and cheaper) or the EMA (new). Kind of like
    putting an IRL on a 1/8 oval dirt track. It will be the fastest race car on
    the track but it will not be able to prove it!

    We migrated from a cluster of VAX 63xx & 76xx and A/S 2100 to a GS160 and used
    the CI as an interface between the old and new. We ran HSJ40 & HSJ50's in our
    CI. Though we moved the data from CI to Fiber we did see the comparitive
    lackluster performance of the CI against the Fiber. Big difference. Maybe you
    should consider the Fiber Phase II. But I would push for its replacement.

    J*o*h*n B*r*a*n*d*o*n
    VMS Systems Administrator
    firstname.lastname.spam.me.not@dalsemi.com

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