Polyserve on embedded Brocade switch

[ka B]

Having difficulties running Polyserve on HP blades through embedded Brocade switch. The performance is really bad (around 100 MB/s).

Since I can't replace the switch, does anyone know of any tuning advice that might help?

Thnx

[Prokopets]

Hi!
What storage are you using with this switches? Disk group size? Firmware of switches?

Regards,
Philipp.

[ka B]

Servers are HP Xeon blades, switch is embedded brocade 24/?, storage is DDN. Each blade connects via two ports of onboard mezz card. PolyServe is recent version.

Other servers (Dell, in the most recent case), connected via conventional Brocade switch, using conventional QLA HBAs, going to same storage, show expected performance (400 MB/s or more).

dd is app load generator for these tests.

[ka B]

More info:

Server: HP BL460 G6
FC HBA: QMH2562 8Gb

FC HBA Firmware: 4.04.04 0080
FC HBA Driver: 8.02.14-hpps
BIOS: 2.12

FC Encl Switch: Brocade HP 8/24C SAN Switch FC Encl Switch Kernel: 2.6.14.2 Fabric OS: V6.1.0_8E1