HP D2D D2D Best Practices for VTL, NAS and Replication implementations (EH985- - Page 22

Best practices for network and Fibre Channel configuration - d2d4106fc

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Best practices for network and Fibre Channel configuration The following table shows which network and fibre channel ports are present on each model of D2D appliance. Product/Model Name Part Number Ethernet Connection Fibre Channel Connection D2D2502iG1 D2D2503 G1 D2D2504i G1 D2D400xi G1 D2D400xFC G1 D2D4112 G1 D2D2502i G2 D2D2504i G2 D2D4106i G2 D2D4106FC G2 D2D4112 G2 D2D4312 G2 D2D4324 G2 EJ001A EH945A EJ002A EH938A/EH939A EH941A/EH942A EH993A EJ001B EJ002B EH996A EH998A EH993B EH983A EH985A 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE 2 x 1GbE, 2 x 10GbE 2 x 1GbE, 2 x 10GbE None None None None 2 x 4Gb FC 2 x 4Gb FC None None None 2 x 4Gb FC 2 x 4Gb FC 2 x 8Gb FC 2 x 8Gb FC Correct configuration of these interfaces is important for optimal data transfer. Key factors when considering performance. It is important to consider the whole network when considering backup performance. Any server acting as a backup server should be configured where possible with multiple network ports that are bonded in order to provide a fast connection to the LAN. Client servers (those that backup via a backup server) may be connected with only a single port if backups are to be aggregated through the backup server. Ensure that no sub-1Gbit network components are in the backup path as this will significantly restrict backup performance. Configure ―High availability mode (link Aggregate)‖ network ports to achieve maximum available network bandwidth. Virtual library devices are assigned to an individual interface. Therefore, for best performance, configure both FC ports and balance the virtual devices across both interfaces to ensure that one link is not saturated whilst the other is idle. Switched fabric mode is preferred for optimal performance on medium to large SANs since zoning can be used. When using switched fabric mode, Fibre Channel devices should be zoned on the switch to be only accessible from a single backup server device. This ensures that other SAN events, such as the addition and removal of other FC devices, do not cause unnecessary traffic to be sent to devices. It also ensures that SAN polling applications cannot reduce the performance of individual devices. A mixture of iSCSI and FC port virtual libraries and NAS shares can be configured on the same D2D appliance to balance performance needs. 22

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Best practices for network and Fibre Channel configuration
The following table shows which network and fibre channel ports are present on each model of D2D appliance.
Product/Model
Name
Part Number
Ethernet Connection
Fibre Channel Connection
D2D2502iG1
EJ001A
2 x 1GbE
None
D2D2503 G1
EH945A
2 x 1GbE
None
D2D2504i G1
EJ002A
2 x 1GbE
None
D2D400xi G1
EH938A/EH939A
2 x 1GbE
None
D2D400xFC G1
EH941A/EH942A
2 x 1GbE
2 x 4Gb FC
D2D4112 G1
EH993A
2 x 1GbE
2 x 4Gb FC
D2D2502i G2
EJ001B
2 x 1GbE
None
D2D2504i G2
EJ002B
2 x 1GbE
None
D2D4106i G2
EH996A
2 x 1GbE
None
D2D4106FC G2
EH998A
2 x 1GbE
2 x 4Gb FC
D2D4112 G2
EH993B
2 x 1GbE
2 x 4Gb FC
D2D4312 G2
EH983A
2 x 1GbE,
2 x 10GbE
2 x 8Gb FC
D2D4324 G2
EH985A
2 x 1GbE,
2 x 10GbE
2 x 8Gb FC
Correct configuration of these interfaces is important for optimal data transfer.
Key factors when considering performance.
It is important to consider the whole network when considering backup performance. Any server acting as a
backup server should be configured where possible with multiple network ports that are bonded in order to
provide a fast connection to the LAN. Client servers (those that backup via a backup server) may be connected
with only a single port if backups are to be aggregated through the backup server.
Ensure that no sub-1Gbit network components are in the backup path as this will significantly restrict backup
performance.
Configure ―High availability mode (link Aggregate)‖ network ports to achieve maximum available network
bandwidth.
Virtual library devices are assigned to an individual interface.
Therefore, for best performance, configure both
FC ports and balance the virtual devices across both interfaces to ensure that one link is not saturated whilst
the other is idle.
Switched fabric mode is preferred for optimal performance on medium to large SANs since zoning can be
used.
When using switched fabric mode, Fibre Channel devices should be zoned on the switch to be only accessible
from a single backup server device. This ensures that other SAN events, such as the addition and removal of
other FC devices, do not cause unnecessary traffic to be sent to devices. It also ensures that SAN polling
applications cannot reduce the performance of individual devices.
A mixture of iSCSI and FC port virtual libraries and NAS shares can be configured on the same D2D
appliance to balance performance needs.