HP 3PAR VMware ESX Implementation Guide

Figure 17 Static Discovery
14. Click Close.
15. Click Yes to rescan the host bus adapter.
16. Issue the showiscsisession command using the HP 3PAR OS CLI to verify connectivity.
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:
• For information available on host port per target port and max total host ports per array, refer
to the HP 3PAR Feature Availability Matrix documentation available on the HP Single Point
of Connectivity Knowledge (HP SPOCK) website:
HP SPOCK
• I/O queue depth on each HP 3PAR StoreServ Storage HBA model, as follows:
QLogic 1G: 512◦
◦ QLogic 10G: 2048 (HP 3PAR StoreServ 10000 and HP 3PAR StoreServ 7000 systems
only)
• The I/O queues are shared among the connected host HBA ports on a first-come, first-served
basis.
• When all queues are in use and a host HBA port tries to initiate I/O, it receives a target queue
full response from the HP 3PAR StoreServ Storage port. This condition can result in erratic I/O
performance on each host. If this condition occurs, each host should be throttled so that it
cannot overrun the HP 3PAR StoreServ Storage port's queues when all hosts are delivering
their maximum number of I/O requests.
30 Configuring the HP 3PAR StoreServ Storage for iSCSI