PRIMECLUSTER Global Link Services Configuration and Administration Guide: Multipath Function (for Solaris(TM) Operating Environment)

8.2.2.1 Disconnection Procedure

In order to replace a PCI card by failure etc., the procedure in the case of disconnecting the target communication path from the Multipath Function temporarily is shown in "Figure 8.2 Disconnection Procedure."

[Figure 8.2 Disconnection Procedure]

1. Change to "stop" state
   

   If the communication path that disconnects from the Multipath Function is "active" state or "standby" state, the communication path needs to change to "stop" state by using stop subcommand of iompadm command. Please refer to "6.3.2.7 stop subcommand" about stop subcommand.

   If the target communication path is "stop" state or "fail" state, this procedure does not have necessity.

   

   

   • Communication cannot be continued, when executing the PCI Hot Plug to the communication path of "active" state, and when the communication path of "active" state or "standby" state does not exist in others.
   • When using ATM cards, all communication paths correspond to the target NIC are stopped.


2. Change to "disconnect" state
   

   The communication path disconnected from the Multipath Function is changed to "disconnected" state by using disconnect subcommand of iompadm command. Please refer to "6.3.2.11 disconnect subcommand" about disconnect subcommand.

   

   The disconnected state of the communication path is shown below.

   

   

   • When using ATM cards, all communication paths correspond to the target NIC are disconnected.
   • When using ATM cards, it is necessary to disconnect the stream link between drivers by using "atmunlink" command after executing the "iompadm disconnect" command. Please refer to "FUJITSU PCI ATM 1.2 User's Guide" for details.


3. Disconnect the PCI card
   

   The PCI card can disconnect by using the cfgadm command for the communication path of "disconnected" state. Please refer to Solaris OS manuals for details of cfgadm command.

   

   • When replacing the PCI card which has two or more ports on a PCI cards, such as Quad FastEthernet card etc., it is necessary to change all the ports of a target PCI card to "disconnected" state or deactivated state.