building a RAID system
Gerry Creager N5JXS
gerry.creager at tamu.edu
Thu Oct 9 10:57:21 EDT 2003
I've recently built a 2TB (well, a little less really) ATA RAID using a
pair of HighPoint 374 controlers and 10 250-GB Maxtor 8 MB cache drives
(plus a 60 GB drive for the system).
It's running as 2 1TB arrays, because of disparate applications, right
Initially, the drivers for RH9 were not available so we started with
RH7.3 and all the updates; they're there now and and allow cross-card
arrays. Down the pike we might re-install and span the controllers.
I've also recently done a 2-drive striped array supporting a meteorology
data application with a lot of data acquisition and database work. It's
mounted to a number of other systems via NFS. Uses a Promise
Technologies TX2000 and a pair of 80 GB Maxtors.
Both RAID systems have worked very well. I suspect the next one I build
will incorporate Serial ATA instead of parallel. I doubt I'll build
another SCSI RAID for my applications.
Texas A&M University
Daniel Fernandez wrote:
> I would like to know some advice about what kind of technology apply
> into a RAID file server ( through NFS ) . We started choosing hardware
> RAID to reduce cpu usage.
> We have two options , SCSI RAID and ATA RAID. The first would give the
> best results but on the other hand becomes really expensive so we have
> in mind two ATA RAID controllers:
> Adaptec 2400A
> 3Ware 6000/7000 series controllers
> Any one of these has its strong and weak points, after seeing various
> benchmarks/comparisons/reviews these are the only candidates that
> deserve our attention.
> The server has a dozen of client workstations connected through a
> switched 100Mbit LAN , all of these equipped with it's own OS and
> harddisk, all home directories will be stored under the main server,
> main workload (compilation and edition) would be done on the local
> machines tough, server only takes care of file sharing.
> Also parallel MPI executions will be done between the clients.
> Considering that not all the workstantions would be working full time
> and with cost in mind ¿ it's worth an ATA RAID solution ?
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