nate wrote:
Rudi Ahlers wrote:
This raises an interesting question. What do you do in this kind of
scenario? How do you upgrade a NAS / SAN with say 5 / 10 TB worth of data?
Lots of the more modern enterprise arrays support online upgrades.
Some of them even support re-distributing data across the new spindles
to maximize performance/limit hot spots.
I personally wouldn't want to purchase any storage array that will
have important data on it that doesn't have these abilities.
My favorite storage company - 3par has some of the more advanced online
optimizations, sample -
http://www.3par.com/documents/3PAR-do-ds-08.0.pdf
Grow data online, convert between RAID levels online, migrate data
between spindle types(FC<->SATA) online etc. Create a volume, and
you never have to worry about answering the question 'is it really
optimal?' because you can change it at any time without application
impact or downtime.
nate
_______________________________________________
Nate, what EXACTLY does that have todo with the topic? We're talking
about a self-build NAS / SAN running on Linux (and UNIX), NOT a
commercial product
--
Kind Regards
Rudi Ahlers
CEO, SoftDux
Web: http://www.SoftDux.com
Check out my technical blog, http://blog.softdux.com for Linux or other
technical stuff, or visit http://www.WebHostingTalk.co.za for Web Hosting stuff
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