Promise Technology 2-Year Extended Warranty for VessR2000 RAID Head - Manual (Page 279)

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Vess R2000 Series Product Manual Promise Technologies
p
laNNiNg CoNsideratioNs For
Nas
aNd
saN
setup
Before you begin setting up the NAS and SAN functions for the Vess R2000 Series, keep in mind these
important issues before laying out cable and beginning configuration of the NAS or SAN. Typically when NAS
sharing protocols (CIFS, NFS, AFP) coexist with iSCSI, the throughput for NAS is separated from iSCSI. This is
achieved with the physical cable connections, and operational and logical control (portals) over the physical ports.
Application servers are generally going to access the iSCSI SAN and NAS client hosts access sharing via a portal
created for that purpose. Cabling setup can effect performance in a mixed NAS/SAN network. See “Network
Cabling for NAS” on page 253 before planning cabling layout.
NAS configuration includes IP settings, control over physical ports including port aggregation, and portal
settings for the physical ports. Normally a single IP address is used for NAS. The NAS portal is configured for a
single controller, the Master controller; and it remains unaffected whether the subsystem is operating in Active-
Active or Active-Passive Mode, as long as both controllers have identical cable setups. The NAS portal stays the
same if a failover occurs. Please read “Create a NAS portal” on page 269 for more information on how to setup
portals for the various network scenarios.