The following are the incompatible functions of Redundant Line Control function from the previous version.
(1) Secure Boot
[Contents]
Secure Boot function of RHEL7 is supported.
[Changes]
Before modification
In the environment where Secure Boot function is enabled, GLS cannot be used.
After modification
In the environment where Secure Boot function is enabled, GLS can be used.
(2) Detecting wrong settings of the monitoring destination
[Contents]
If the settings are incorrect as follows, the HUB monitoring function detects a route error.
Redundant line switching mode is NIC switching mode or Virtual NIC mode.
The network segment is not consistent between the IP address of the monitoring target and the IP address of the virtual interface.
Communication with the IP address of the monitoring target is enabled by other interfaces except the virtual interface of GLS.
An error in the settings can be found earlier when a route error is detected.
[Changes]
Before modification
An error in the communication route cannot be detected.
After modification
An error in the communication route can be detected, and the error message number 870 is output to the system log.
[Notes]
The incorrect settings described above cannot be detected in the following environments:
OS is RHEL7.
IPv6 is used as the monitoring destination IP address.
(3) Detecting hang-up of the ping command
[Contents]
In the following monitoring functions, a hang-up of the ping command can be detected.
HUB monitoring function in NIC switching mode
Remote host monitoring function in GS linkage mode
[Changes]
Before modification
When the ping command hangs, an error in the route cannot be detected.
After modification
When the ping command hangs, an error in the route is detected. The operation after the route error is detected is the same as the operation after an error is detected in each communication mode.
With this functional change, parameters are newly added to the interfaces of the following user command.
When an error is detected in a transfer route in NIC switching mode
For details, see "(2) When detected an error in a transfer route" in "3.12.2.1 Settings for NIC switching mode."
(4) Adding execution timing of the user command
[Contents]
Under the following conditions, the user command is executed.
In the following redundant line switching mode, an error or a recovery of the virtual interface is detected:
Virtual NIC mode
In the following redundant line switching mode, the takeover virtual interface is activated or inactivated:
Fast switching mode
Virtual NIC mode
GS linkage mode
For details, see "2.8.2 User command execution function."
[Changes]
Before modification
The user command is not executed under the conditions described above.
After modification
The user command is executed under the conditions described above.
(5) Setting file of the self-checking function
[Contents]
When GLS is installed, the setting file for the self-checking function is deployed. For details, see "H.3.6 Virtual driver hang detected by Self-checking function."
[Changes]
Before modification
The setting file for the self-checking function is newly created by a user if necessary.
After modification
When GLS is installed, the setting file for the self-checking function with the standard setting is deployed.
(6) Outputting a message to the console
[Contents]
From this new version, the following messages are not output to the console. However, you can change the settings so that these messages are output to the console as in the settings of previous versions.
Messages output when the virtual interface in NIC switching mode is activated or inactivated
Messages output when the takeover virtual interface is activated or inactivated in all the Redundant line switching modes
[Changes]
Before modification
The messages are output to both the system log and the console.
After modification
The messages are output only to the system log.
To output the messages to the console as in previous versions, add "disable_console" parameter and set it to "0" in the following setting file.
/etc/opt/FJSVhanet/config/ctld.param
# # HA-Net Configuration File # # Each entry is of the form: # # <param> <value> # observ_msg 0 observ_polling_timeout 180 max_node_num 4 disable_console 0 < = Add the parameter and set "0" to it. |
(7) Network setting file of the physical interface
[Contents]
For RHEL 7 or later, the naming conventions for NIC names are changed to generate device names based on the hardware locations of NICs (Predictable Network Interface Names).
In an environment where Predictable Network Interface Names are enabled, the setting of "HWADDR" can be skipped in the network setting file (/etc/sysconfig/network-scripts/ifcfg-ethX) of the physical interfaces bundled by the virtual interface of GLS.
[Changes]
Before modification
In the network setting file of the physical interfaces, "HWADDR" must be set.
After modification
In the network setting file of the physical interfaces, the setting of "HWADDR" can be skipped.
(8) Fujitsu Hot Standby Protocol
[Contents]
In GS linkage mode, the operation when the message of Fujitsu Hot Standby Protocol failed to be sent is changed.
[Changes]
Before modification
The following error message is output:
ERROR: 80590: internal error.(*) [sock.c(***)] |
After modification
The following error message is output:
WARNING: 93200: cannot send fhsp message. (dest=hostip, code) |
For details of this message, see "A.1.3 Console output messages (numbers 800 to 900)."
(9) Changing the location of ifcfg-shaX file
[Contents]
Change the interface configuration file (ifcfg-shaX) location of virtual interface in Virtual NIC mode.
[Changes]
Before modification
The interface configuration file (ifcfg-shaX) is stored in the following directory during the configuration of virtual interface in Virtual NIC mode.
/etc/opt/FJSVhanet/config/ifcfg-shaX
The symbolic link of the above file is also created in the following directory.
/etc/sysconfig/network-scripts/
After modification
The interface configuration file (ifcfg-shaX) is stored in the following directory during the configuration of virtual interface in Virtual NIC mode.
/etc/sysconfig/network-scripts/ifcfg-shaX
However, the symbolic link of the above file is not created.
