Dell EqualLogic PS6100 series Configuration Manual page 127

Figure 39 NAS replication
Replication requirements:
•
Both sites must be EqualLogic FS appliances. Replication from FS7600 to any other Dell product
using FluidFS is not supported.
•
Each site (or EqualLogic Group) must have the same number of NAS controllers or NAS appliances.
•
FS appliances must run firmware version 2.0 or higher and PS arrays must run version 6.0 or
higher.
•
There must be a network link between the two sites (or EqualLogic groups) via the SAN side
network.
•
If the client and SAN networks do not have a route to each other, a static route needs to be
configured on FS NAS appliances on both the sites. Refer to NAS Replication Network Setup Guide
for details on configuring network for NAS replication.
Important notes:
•
You can replicate between FS7500 and FS76x0 as long as all FS appliances are running version 2.0
of FS Series Firmware (FluidFS).
•
Replication of NAS containers within the same EqualLogic group or NAS cluster is not supported
by FS appliances.
•
One EqualLogic group can form replication partnerships with 16 other groups; however one NAS
container in a group can be replicated to only a single replication partner.
•
NAS replication operates at block level. After the first complete data replication, only changed
blocks of a file and not the whole file (if any changes are made to a file) is replicated.
•
There is no Manual Transfer Utility (MTU) available for NAS replication.
•
The NAS replica is consistent to the last successful replication. If a you want multiple point in time
copies of the NAS container at the replica site, snapshots should be created on the primary side.
All the snapshots and the NAS container point in time copies will be available at the secondary site.
•
The NAS replication does not use any replication reserve space on the pool.
Accessing data at the replication site:
•
Read Only Access: A NAS replica can be made available to clients on secondary site by enabling
Read Only access
March 2013 Dell EqualLogic Configuration Guide v14.1 12-118