Target Port Limits and Specifications

3.0.2or later, verify that each switch port is in the correct mode using the Brocade telnet interface and the portcfgshow command, as follows:

brocade2_1:admin> portcfgshow
Ports	0	1	2	3	4	5	6	7
-----------------+	--	+--	+--+	--+	----	+--	+--	+--
Speed	AN AN		AN AN		AN AN AN AN
Trunk Port	ON ON		ON ON		ON ON ON ON
Locked L_Port	.. .. .. .. .. .. .. ..
Locked G_Port	.. .. .. .. .. .. .. ..
Disabled E_Port
where AN:AutoNegotiate,			..:OFF, ??:INVALID.

The following fill-word modes are supported on a Brocade 8 G/s switch running FOS firmware 6.3.1a and later:

admin>portcfgfillword

Usage: portCfgFillWord PortNumber Mode [Passive]

Mode: 0/-idle-idle - IDLE in Link Init, IDLE as fill word (default)

1/-arbff-arbff	- ARBFF	in Link Init, ARBFF	as fill word
2/-idle-arbff	- IDLE	in Link Init, ARBFF	as fill word (SW)
3/-aa-then-ia	- If ARBFF/ARBFF failed, then do IDLE/ARBFF

HP recommends that you set the fill word to mode 3 (aa-then-ia), which is the preferred mode using the portcfgfillword command. If the fill word is not correctly set, er_bad_os counters (invalid ordered set) will increase when you use the portstatsshow command while connected to 8 G HBA ports, as they need the ARBFF-ARBFFfill word. Mode 3 will also work correctly for lower-speed HBAs, such as 4 Gb/2 Gb HBAs. For more information, see the Fabric OS command Reference Manual supporting FOS 6.3.1a and the FOS release notes.

In addition, some HP switches, such as the HP SN8000B 8-slot SAN backbone director switch, the HP SN8000B 4-slot SAN director switch, the HP SN6000B 16 Gb FC switch, or the HP SN3000B 16 Gb FC switch automatically select the proper fill-word mode 3 as the default setting.

•McDATA switch or director ports should be in their default modes as G or GX-port (depending on the switch model), with their speed setting permitting them to autonegotiate.

•Cisco switch ports that connect to HP 3PAR StoreServ Storage ports or host HBA ports should be set to AdminMode = FX and AdminSpeed = auto port, with the speed set to auto negotiate.

•QLogic switch ports should be set to port type GL-port and port speed auto-detect. QLogic switch ports that connect to the HP 3PAR StoreServ Storage should be set to I/O Stream Guard disable or auto, but never enable.

Target Port Limits and Specifications

To avoid overwhelming a target port and ensure continuous I/O operations, observe the following limitations on a target port:

•Maximum of 32 host ports per HP 3PAR StoreServ Storage port, with a maximum total of 1,024 host ports per HP 3PAR StoreServ Storage.

•I/O queue depth on each HP 3PAR StoreServ Storage HBA model, as follows:

◦ QLogic 2G: 497

◦

LSI 2G: 510

Emulex 4G: 959

14 Configuring the HP 3PAR StoreServ Storage for Fibre Channel