Comments on: Pros and Cons of Diskless Servers booting off a SAN

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By: Sriram Narayanan

Sriram Narayanan — Thu, 18 Jun 2009 15:36:30 +0000

One could minimize the dangers of a SAN dying by opting for multi-controller SANs configured in continuous replication mode.

The Sun Storage devices have this at present, and the Fishworks UI on them makes it definitely worth the cost (which itself is much lower than comparable SAN appliances from EMC, Netapp and the like).

By: Biju Krishnan

Biju Krishnan — Sat, 28 Feb 2009 14:28:55 +0000

Another advantage is that you can industrialize server deployment with pre-installed applications.

For example if you are a hosting solutions provider, your new client requires 10 SQL servers to be deployed within a week, if you use advanced SAN technology then you can do this in hours.

if the client wishes to customize base image with his own requirements, then you can offer to store this in such a way that a copy of this is then offered on demand.

Disadvantages

Multipathing still possesses uncertainty inspite of maturity over the years, a human error on a SAN fabric can bring down your entire data center since u depend heavily on it. All shared infra comes with high risks but yes the advantages outweigh risks.