NAS

Martin Siegert siegert at sfu.ca
Fri Jun 28 13:54:55 EDT 2002


On a related issue:

we are planning to install a relatively large NAS unit (in the 100TB range).
The question is: is there a limit (and if yes, how large is it?) for the
largest file system Linux can mount?
E.g., can I NFS mount a 8TB file system under Linux? (kernel 2.4.18).

Thanks for any information you may have on that problem.

Cheers,
Martin

========================================================================
Martin Siegert
Academic Computing Services                        phone: (604) 291-4691
Simon Fraser University                            fax:   (604) 291-4242
Burnaby, British Columbia                          email: siegert at sfu.ca
Canada  V5A 1S6
========================================================================

On Fri, Jun 28, 2002 at 01:29:12PM -0400, John Burton wrote:
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> Mike,
> 
> I have two relatively large NAS units (.5TB and 1.5TB). Both use ATA/100 
> drives configured in a RAID 5 array. The large one is a standard product 
> (OpenNAS) from RAIDZONE / Consensys and is used for the datastore for the 
> NASA SABER project (saber.larc.nasa.gov). The smaller one is a homebuilt NAS 
> serving as a backup server for our company.  Basically I bought 2 3Ware 
> hotswap cages (3 ATA/100 drives each and a 3Ware Escalade RAID 5 card (8 
> ATA/100 channels). The 3Ware card is supported under Linux and causes the 
> RAID array to look like a SCSI drive. You can also configure the board to 
> access the drives individually and use software RAID or whatever. We're happy 
> with both setups, but I'll probably go with the 3Ware setup for our next 
> project. I like the 3Ware native linux drivers and the RAID manager support - 
> I don't like "black boxes" and the RAIDZONE unit is more of a black box to me 
> then the homebuilt... Hope this helps!
> 
> John
> 
> On Friday 28 June 2002 10:43 am, Mike Davis wrote:
> > How many beowulfers have implemented or are working towards implementing
> > gigabit NAS. I have two systems with .5TB and 1TB respectively and they
> > seem to work ok. What are other people's experiences.
> >
> > Mike Davis
> >
> > _______________________________________________
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> 
> - -- 
> John Burton, Ph.D.
> Principal Associate              GATS, Inc.  
> j.c.burton at gats-inc.com          11864 Canon Blvd - Suite 101
> jcb at visi.net (personal)          Newport News, VA 23606
> (757) 873-5920 (voice)           (757) 873-5924 (fax)
>                     
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