[clug-talk] Storage Area Networks - Network attached Storage
"J. Rafael Sánchez"
rsanchez at itres.com
Fri Dec 3 10:07:25 PST 2004
Mark Lane wrote:
> On December 3, 2004 09:47 am, "J. Rafael Sánchez" <rsanchez at itres.com> wrote:
>>I thank you all for your comments. If I were to buy a couple of external
>>firewire/sata/ide/raid cases with around 2TB capacity each, and attach
>>them to one or two of my existing [fastest] servers, would I be getting
>>a comparable solution?
> Yeah you can use external DAS boxes to make a current server into a NAS box
> that way. You could even offer server failover to some extent with this setup
> as most DAS boxes come with dual channel support. (IE if one of the servers
> hangs, the other server could takeover the file sharing.)
>>Also, we produce, not only lot's of data, but files that have started to
>>reach beyond the 2Gb threshold, an issued which I'm already having some
>>challenges with. It becomes a challenge to move them around. Would you
>>care to comment on that?
> You may want to consider something like jfs for your file system then. It
> handles large files better than ext3 or reiserfs.
I don't think I've ever really given jfs any thought. I will certainly
investigate this further. I would think that I'd probably have to
compile it? I did a lsmod and grep and did not come up.
>>Has anyone had to deal with a similar situation and, if I may ask, how
>>do you deal with it?
> We supply lots of customers with NAS boxes to handle this.
>>I recently put a 64bit system together... and
>>installed FC3 on it...I've had some problems with it already, but that's
>>another complete different topic of discussion...
> We use and sell lots of opterons with out issues and FC3 is definitely the
> best OS out for that hardware.
I see that you're in Edmonton. I will peruse through your website and, I
may contact you offlist. Would that be ok?
There was one day last week that my box rebooted itself twice. I
discovered that cron was running a 'sa' "system accounting" job just
before the rebooting. Disabling this seem to help a bit, except that
shortly after I started to get "kernel panics" twice in the same day.
Doing a bit of reserch, it turned out that 'ssh' and probably 'ieee' are
buggy. Having users use an Xwin middleware, I was able to stabilize the
I keep watching it very closely now. It appears to be stable, but who knows.
J. Rafael Sánchez
Airborne Hyperspectral Remote
Sensing Systems & Solutions
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