[ldm-users] Fedora 7 redux: BUSTED!

Gilbert Sebenste sebenste at weather.admin.niu.edu
Mon Oct 15 09:53:31 MDT 2007


On Mon, 15 Oct 2007, Gerry Creager wrote:

> My preference has proven to be to distribute loads and use separate systems 
> for hard-core processing. LDM can be memory intensive.

I do too; I use 3 machines to do all the grunt work. And this go-around, I 
made sure I had a minimum of 4 GB of RAM.

>  Since I do a lot of 
> relaying here, too, I dedicate one system (really two... long story) to that, 
> and then have several others filing, processing, etc.  I don't recall if we 
> went to SATA-II.  Since losing my sys admin and taking on those duties, I've 
> not gotten into a box to check explicitly, but I thought we had.  That said, 
> they'd all be on CoRAID systems as we rarely keep more than local system disk 
> in machines anymore.

I'm a one-man band myself, as I suspect many of us are here. That means I 
have to have something that works quickly out of the box, that I know how 
to deal with, and be reliable. And cheap! Of my 9 years with Redhat Linux 
(and 7 issuances of their Fedora release), I feel guilty sometimes using 
it. I do report bugs, but haven't paid a dime. To say that I have "gotten 
my money's worth" is an understatement.

> Think SAS rather than conventional SCSI.  We've started migrating to that for 
> our RAID shelves and some of the Sun servers (running Centos) we have.

I reveal my ignorance here by asking what is SAS? Looked it up on 
Google ("SAS storage"). Then I hit Wikipedia:

http://en.wikipedia.org/wiki/Serial_Attached_SCSI

It supports speeds of up to 3 gb/sec, but that's what SATA 2 does. It does 
say it will support speeds of 12 gb/sec by 2012, but for now, I don't see 
an advantage.

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Gilbert Sebenste                                                     ********
(My opinions only!)                                                  ******
Staff Meteorologist, Northern Illinois University                      ****
E-mail: sebenste at weather.admin.niu.edu                                  ***
web: http://weather.admin.niu.edu                                      **
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