From: Martin Thorpe (Martin.Thorpe@DATAFORCE.co.uk)
Date: Tue Apr 06 2004 - 07:51:00 EDT
Sun Managers
This is a little off topic, however my company are investing in a new
SAN and I am looking into the possibilities, so far I have looked at:
LSI (StorageTek), EMC and HP
What I would like to know is any tips for researching a solution from
people that have been through this, and also any pitfalls to avoid.
We already have a SAN (I was not involved in the purchase of this),
however we are looking at purchasing a more powerful and scalable system
that can provide us with the necessary building blocks for future
growth, big bandwidth, 24x7 always-on and flexibility in order to house
multiple-operating systems as the business grows (any-to-any
connectivity), our data on the current SAN will be migrated to the new,
we do not want to upgrade, so therefore I have to start from the ground
up in my research.
IOPs is a big figure in scaling a solution, however arriving at somekind
of rough ballpark figure for this seems very difficult without
purchasing software, even with this, its not going to be perfectly
accurate. Whats the best way to measure this per application (if the
Application vendor cannot give you a rough idea) to give a rough idea as
to what we need minimum?
The new SAN will need to support 5 hosts in the early stages but this
will develop as the company gains confidence in it:
SUNFIRE 3800 Solaris 9 - RDBMS server (PICK).
SUNFIRE 3800 Solaris 9 - RDBMS server (PICK)
SUNFIRE V210 Mail System Server
IBM X345 SQL Cluster
IBM X345 SQL Cluster
VxVM will be used to control volumes, this will enable us to
deport/import RDBMS volumes on two different servers from two different
arrays, as true clustering is not supported by the RDBMS.
We already have 2xBrocade 2400 silkworms, however these are end of
lifed, they are also 1GB per port, most new arrays are 2GB. We also do
NOT use zoning on these Brocades, it is disabled, I have noticed many
people talking about using this being critically important?
Userbase is around 500 for the two SF3800's, 600 for the V210 and less
than 100 per SQL Cluster, so not a very large userbase.
Of course, I will summarise the replies back to the list.
Thanks
Martin
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