HP XP20000/XP24000 HP StorageWorks XP Disk Array Configuration Guide (T5278-96 - Page 104

Table 21 Host group mode option IBM AIX, CAUTION

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Table 21 Host group mode (option) IBM AIX Host Group Mode 2 22 Function Default Veritas Storage Foundation for Oracle RAC, DBE+RAC Database Edition/Advanced Cluster for Real Application Clusters or if Veritas Cluster Server 4.0 or later with I/O fencing function is used. Inactive This Host Group Mode can change the Inactive response to the Host when a reserved device has received a mode sense command unrelated to the Reserve. The effects of this mode are: 1. The retry time is shortened for device recognition (several tens of ms/LU) Warning messages are prevented from being generated in the OS log 2. Even if the option is not set ON, no operation error(s) are caused for Veritas Cluster Server Software Host Group Mode 22 = OFF - Reserve Conflict response Host Group Mode 22 = ON - Normal End response Comments Previously MODE186 Do not apply this option to Oracle Cluster. For the XP12000/10000 subsystems, though initially available with microcode version 50-07-66-00/00, this mode can not be set from the Remote Web Console until microcode version 50-09-37-00/02 or greater. For the XP24000/20000 subsystems, though the mode is available from the initial release of the product, it can not be set from the Remote Web Console until microcode 60-01-68-00/00 or greater. CAUTION: Changing host group modes for ports where servers are already installed and configured is disruptive and requires the server to be rebooted. Setting the system option modes The HP service representative sets the system option mode(s) based on the operating system and software configuration of the host. Notify your HP representative if you install storage agnostic software (such as backup or cluster software) that might require specific settings. Configuring the Fibre Channel ports Configure the disk array Fibre Channel ports by using P9000 or XP Command View Advanced Edition Software or XP Remote Web Console (shown). Select the settings for each port based on your SAN topology. Use switch zoning if you connect different types of hosts to the array through the same switch. 104 IBM AIX

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Table 21 Host group mode (option) IBM AIX
Comments
Default
Function
Host
Group
Mode
Previously MODE186
Do not apply this option to
Oracle Cluster.
Inactive
Veritas Storage Foundation for Oracle RAC,
DBE+RAC Database Edition/Advanced
Cluster for Real Application Clusters or if
Veritas Cluster Server 4.0 or later with I/O
fencing function is used.
2
For the XP12000/10000
subsystems, though initially
available with microcode
version 50-07-66-00/00,
this mode can not be set
from the Remote Web
Console until microcode
version 50-09-37-00/02
or greater.
For the XP24000/20000
subsystems, though the
mode is available from the
initial release of the
product, it can not be set
from the Remote Web
Console until microcode
60-01-68-00/00 or
greater.
Inactive
This Host Group Mode can change the
response to the Host when a reserved device
has received a mode sense command
unrelated to the Reserve. The effects of this
mode are:
1.
The retry time is shortened for device
recognition (several tens of ms/LU)
Warning messages are prevented from
being generated in the OS log
2.
Even if the option is not set ON, no
operation error(s) are caused for Veritas
Cluster Server Software
Host Group Mode 22 = OFF - Reserve
Conflict response
Host Group Mode 22 = ON - Normal End
response
22
CAUTION:
Changing host group modes for ports where servers are already installed and
configured is disruptive and requires the server to be rebooted.
Setting the system option modes
The HP service representative sets the system option mode(s) based on the operating system and
software configuration of the host. Notify your HP representative if you install storage agnostic
software (such as backup or cluster software) that might require specific settings.
Configuring the Fibre Channel ports
Configure the disk array Fibre Channel ports by using P9000 or XP Command View Advanced
Edition Software or XP Remote Web Console (shown). Select the settings for each port based on
your SAN topology. Use switch zoning if you connect different types of hosts to the array through
the same switch.
104
IBM AIX