- Notes, cautions, and warnings
- Overview of Unisphere
- Functionality supported by each OS type
- Capacity information
- Understanding resource usage
- Login authentication
- Understanding the system health score
- Manage jobs
- Unisphere for PowerMax alert monitoring recommendations
- Alerts
- Server alerts
- Understanding licenses
- Understanding user authorization
- Individual and group roles
- Roles
- User IDs
- Roles and associated permissions
- Roles for performing local and remote replication actions
- RBAC roles for SRDF local and remote replication actions
- RBAC roles for TimeFinder SnapVX local and remote replication actions
- Storage Management
- Understanding storage groups
- Understanding data reduction
- Understanding service levels
- Performance Impact
- Understanding storage templates
- Understanding Storage Resource Pools
- Understanding volumes
- Understanding disk groups
- Host Management
- Understanding hosts
- Understanding masking views
- Understanding port groups
- Understanding initiators
- Understanding PowerPath hosts
- Understanding mainframe management
- Data protection management
- Understanding Snapshot policy
- Understanding SRDF/Metro Smart DR
- Manage remote replication sessions
- Understanding SRDF groups
- Understanding migration
- Understanding Virtual Witness
- Understanding Open Replicator
- Open Replicator session options
- Understanding device groups
- Understanding TimeFinder/Mirror sessions
- Understanding TimeFinder SnapVX
- Understanding Performance Management
- Understanding Unisphere support for VMware
- Understanding eNAS
- Understanding iSCSI
- Understanding NVMe/TCP
- Understanding PowerMax File for storage systems
- Understanding serviceability
- Understanding PowerMax software system profiles and compliance
- Unisphere for PowerMax localized for Japanese market
- Where to get help
Dell Unisphere for PowerMax 10.0.1 Product Guide
Understanding SRDF groups
SRDF groups provide a collective data transfer path linking volumes of two separate storage systems. These communication and transfer paths are used to synchronize data between the R1 and R2 volume pairs that are associated with the SRDF group. At least one physical connection must exist between the two storage systems within the fabric topology.
These communication and transfer paths are used to synchronize data between the R1 and R2 volume pairs that are associated with the SRDF group. At least one physical connection must exist between the two storage systems within the fabric topology.
See Dell SRDF Introduction for an overview of SRDF.
The maximum number of supported SRDF groups differs by version:
| OS | Maximum number of SRDF Groups supported | Group numbers | ||
|---|---|---|---|---|
| per storage system | per director | per port | ||
| 5977 or 5978 | 250 | 250 | 250 | 1–250 |
| 10 (6079) | 2000 | 2000 | 2000 | 1-2048 |
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NOTE: If both arrays are arrays running PowerMaxOS 10 (6079), up to 2000 SRDF groups can be defined across all the ports on a specific SRDF director or up to 2000 SRDF groups can be defined on one port on a specific SRDF director. A port on the array running PowerMaxOS 10 (6079) connected to an array running HYPERMAX OS 5977 or PowerMaxOS 5978 supports a maximum of 250 SRDF groups.
- When specifying a local or remote director for a storage system, you can select one or more SRDF ports.
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