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Fabric OS Administrator’s Guide 461

53-1002446-01

Buffer credit management

Buffer credits for each switch model

Table 79 shows the total ports in a switch or blade, number of user ports in a port group, and the

unreserved buffer credits available per port group. The number in the Unreserved buffers column

is the number with QoS enabled. This number is higher if QoS is not enabled.

For the FC8-x port blades, the first number in the Unreserved buffers column designates the

number of unreserved buffers per port group without buffer optimized mode; the second number

designates the unreserved buffers with buffer optimized mode enabled on the slot. Use the

bufOpMode command to display or change the buffer optimized mode.

TABLE 79 Buffer credits

Switch/blade model Total FC ports (per switch/blade) User port group size Unreserved buffers (per port group)

with QoS enabled

300 24 24 484

5100 40 40 1692

5300 80 16 292

5410 12 12 580

5424 24 24 484

5450 26 26 468

5480 24 24 484

6505 24 24 7424

6510 48 48 6752

7800 16 16 408

8000 *** Extended Fabrics is not supported on this switch ***

VA-40FC 40 40 1692

Brocade Encryption Switch 32 16 1392

FC8-16 16 16 1292/ 508

FC8-32 32 16 1292/ 508

FC8-32E 32 16 5188

FC8-48 48 24 1228/ 716

FC8-48E 48 24 4484

FC8-64 *** Extended Fabrics is not supported on this blade ***

FC16-32 32 16 5188

FC16-48 48 24 4484

FR4-18i 16 8 377

FS8-18 16 8 1604

FX8-24 12 12 1060

HP SN3000B User Manual

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