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Policy based validation of SAN configuration
Written by:
Dakshi Agrawal,
James Giles,
Kang-won Lee,
Kaladhar Voruganti,
and Khalid Filali-Adib.
Citation:
In the Proceedings of IEEE International Workshop on Policies for
Distributed Systems and Networks (Policy 2004), June 2004.
Copyright © (2004) by IEEE. Permission to make digital or
hard copies of part or all of this work for personal or classroom use
is granted without fee provided that copies are not made or distributed
for profit. To copy otherwise, to republish, to post on servers, or to
redistribute to lists, requires prior specific permission and/or a fee.
Abstract:
Historically, storage has been directly connected to servers for fast
local access and easy configuration. In recent years, storage area
networks (SANs) have defined an alternative storage paradigm that
allows storage to be shared among servers using fast interconnects.
One of the key challenges of SAN management is the large number
of configuration problems that are encountered in a typical SAN
deployment. These configuration problems can be addressed by SAN
management software. However, hard-coding the SAN configuration
rules into the management software is not a viable option since it is
not possible to easily modify or replace old configuration rules and
specify new policies and guidelines. In this paper, we propose a novel
policy-based SAN configuration validation system that can be used to
specify, store, and evaluate configuration policies for SANs. We also
introduce five new operators for collection policies that are useful for
evaluating a wide variety of practical SAN configuration policies found in
practice. The policy-based SAN configuration checking approach proposed
in this paper is discussed within the context of device interoperability
constraints. However, this approach is extensible as it can also be used
to enforce performance, reliability, and security-related configuration
constraints.
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