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List:       npaci-rocks-discussion
Subject:    Re: [Rocks-Discuss] xcat and rocks
From:       Philip Papadopoulos <philip.papadopoulos () gmail ! com>
Date:       2011-09-24 14:27:45
Message-ID: CACnkd5ipRwE9zPX_cy9s4D-SRYiJFGyBMeVzhske4WN2vSTvcQ () mail ! gmail ! com
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The major difference is really how much administration/configuration is
required to get a working
xCat cluster vs. a working Rocks cluster (the latter is nearly 0, the
former).

It is almost an axiom that if a cluster solution installs on -anything-,
then it can't do
much customization without significant admin work by the user.

Rocks takes the opposite approach,
focus on a single family of distributions and support significant automation
and re-usability of
configuration across many different hardware configurations.

An illustrative difference for xcat is in their getting started guide
Rocks is about 5 steps.
        1. Boot install disk for frontend
        2. Select Rolls (either from network or local dvd)
        3. wait for frontend to complete installation
        4. Run insert-ethers to discover nodes in your cluster and configure
them
        5. start computing

Xcat lists nearly 40 steps (with many "substeps") to get to the stage of
installing nodes.

-P




On Sat, Sep 24, 2011 at 12:13 AM, antony samy <aantony143@gmail.com> wrote:

> xCAT is OS independent and you can install the latest version of RHEL,
> CentOS, Sles, etc
> where as Rocks is not is independent and it supports only rhel 5 and centos
> 5.
> 
> Is there any other major deferences between these two?
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-- 
Philip Papadopoulos, PhD
University of California, San Diego
858-822-3628 (Ofc)
619-331-2990 (Fax)
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