[rescue] EMC question (Pictures)

Scotty Logan swl at catbert.net
Thu Jun 17 16:36:53 CDT 2004

On Jun 17, 2004, at 2:09 PM, Thomas Gallaway wrote:
> I guess that way they dont have to use a network switch. But why dual 
> controllers per chassie.

If by controllers you mean data movers, then it's for performance and 
scalability; if you mean FC or ethernet adapters it's for path 
redundancy.  Specifically, each port on the Emulex HBA would be 
connected, either directly or via separate switches, to a different FC 
board in an EMC Symmetrix array, or possibly to different service 
processors on an EMC Clariion (I know the Celerra is supported with the 
Symmetrix, and I think it is also supported with the Clariion).

> Also I have not found any IDE or SCSI drive anywhere. Going to 
> investigate a bit further. The
> controll station had a floppy in the inside too.

See above.  The data movers are just NFS/CIFS gateways for EMC storage 
arrays - they don't use internal storage for the exported filesystems.  
I don't know if they're supposed to have internal boot disks, or if 
they boot from the EMC storage array.  [We use EMC Symmetrix, Clariion 
and Centera ewhere I work, but no Celerra.]


Never take life seriously - Nobody gets out alive anyway

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