Administrator Guide

Table Of Contents
About Replication Partners
Before you can replicate volume and NAS container data between two PS Series groups, you must congure the groups as
replication partners.
Each partner plays a role in the replication of a volume, and you can monitor replication activity and manage replicas from either
partner:
Primary group
Location of the volume. The primary group administrator congures the secondary group as a replication partner and initiates the
replication operation. Replication of the volume is considered outbound from the view of the primary group.
Secondary group
Location of the volume’s replica set. The secondary group administrator congures the primary group as a replication partner and
provides space for replicas. Replication of the volume is considered inbound from the view of the secondary group (sometimes
called the destination group).
Mutual authentication using passwords provides security between partners. You can test the replication partnership before you begin
replication. If you do not specically test the partnership, it will not be veried until you begin replication.
Partners use port 3260 for replication activity. After you congure the replication partners, you can replicate a volume or replicate all
the volumes in a volume collection.
Replication Partner Requirements
To be replication partners, the two groups must meet the following requirements:
The primary group must have enough free space for the local replication reserve for each replicated volume. Local replication
reserve is located in the same pool as the volume. See About Local Replication Reserve.
The secondary group must have enough free space to delegate to the primary group. See Guidelines for Sizing Delegated Space.
The groups must have network connectivity. The link between groups must support full IP routing and must provide sucient
bandwidth to complete replication operations in a timely manner.
The network link between the groups must be secure (for example, through use of a rewall, VPN, or encryption).
The groups must run compatible versions of the PS Series rmware, as detailed in the rmware matrix below. If the groups are
not running the same rmware version, features in the most recent rmware version might not be available. In some cases, you
must also disallow rmware downgrades.
The following table shows the rmware versions compatible with version 9. You can also check the Dell EqualLogic PS Series
Storage Arrays Release Notes for the most current list.
Table 47. Replication Support – Partner Firmware Matrix
Firmware on Group Firmware on Partner
v10.0.x v9.0, v9.1.x, v10.0.x
v9.1.x v8.0.x, v8.1.x, v9.0.x, v9.1x
v9.0.x v8.0.x, v8.1.x, v9.0.x
v8.1.x v8.0.x, v8.1.x
v8.0.x v7.0.x, v 7.1.x, v8.0.x, v8.1.x
v7.0.x, v7.1.x v6.0.x, v7.0.x, v7.1, v8.0.x
v6.0.x v5.1.x, v5.2.x, v6.0.x. v7.0.x, v7.1.x
v5.1.x, v5.2.x v5.0.x, v5.1.x, v5.2.x, v6.0.x
v5.0.x v5.0.x, V5.1.x, v5.2x
256
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