Gigabit Ethernet ServerNet Adapter Installation and Support Guide
Replacing a GESA
Gigabit Ethernet Adapter Installation and Support Guide—523628.005
3-9
Redirect or Stop Any Customer Applications Using
the GESA
11. If a SWAN concentrator is connected to the GESA CRU to be replaced, determine
the names of the WAN subsystem IOPs configured to use that SWAN concentrator
by using the SCF INFO DEVICE command (see Example 3-12). Write down the
WAN subsystem IOPs that use the concentrator on your worksheet.
INFO DEVICE $ZZWAN.#*
Redirect or Stop Any Customer Applications Using the GESA
1. Notify end users that applications will be temporarily unavailable.
2. Perform any actions necessary to redirect or stop customer applications.
Stop the Communications Lines and SWAN Concentrator Line
Using the GESA
1. Abort the communications lines.
•
To stop a single line, use the SCF ABORT LINE command:
ABORT LINE $line-name
•
To stop the lines in an Expand multiline path, use the SCF ABORT PATH
command:
ABORT PATH $path-name
2. Verify that the lines are in the STOPPED state.
•
To verify a single line is stopped, use the SCF STATUS LINE command (see
Example 3-13
):
STATUS LINE $line-name
Example 3-12. SCF INFO DEVICE command
->INFO DEVICE $ZZWAN.#*
WAN MANAGER Detailed Info Device \TAHITI.$ZZWAN.#A10
*Adapter Name..... S01 *Clip........... 1
*Line............. 0 *Path........... A
Profile........... MLHSWAN *Recsize........ 12
Preferred Cpu..... 2 Alternate Cpu... 3
*Type............. (63,06)
*MULTINAME........ $PMAU1
*IOPOBJECT........ \TAHITI.$SYSTEM.SYS00.LHOBJ
Note. The actions required to perform this step depend on the customer’s application.
Note. A SWAN concentrator has dual Ethernet ports, which can be configured to connect to
ports on two different GESAs; only one Ethernet connection is needed for full function. If the
SWAN concentrator’s second Ethernet port is connected to another GESA (other than the
GESA that you are replacing), you do not need to perform the following steps. However, the
SWAN concentrator will not be fault-tolerant while the GESA is being replaced.