HP XP20000/XP24000 HP StorageWorks XP Disk Array Configuration Guide (T5278-96 - Page 90

Table 19 Host group modes options Solaris, CAUTION

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Table 19 Host group modes (options) Solaris (continued) Host Group Mode 13 Function SIM report at link failure Select HMO 13 to enable SIM notification when the number of link failures detected between ports exceeds the threshold. Default Inactive 22 Veritas Cluster Server OFF When a reserved volume receives a Mode Sense command from a node that is not reserving this volume, the host will receive the following responses from the storage system: ON: Normal response OFF (default): Reservation Conflict NOTE: • When HMO 22 is ON, the volume status (reserved/non-reserved) will be checked more frequently (several tens of msec per LU). • When HMO 22 is ON, the host OS will not receive warning messages when a Mode Select command is issued to a reserved volume. • There is no impact on the Veritas Cluster Server software when HMO 22 is OFF. Set HMO 22 to ON when the software is experiencing numerous reservation conflicts. • Set HMO 22 to ON when Veritas Cluster Server is connected. Comments Optional This mode is common to all host platforms. NOTE: Note:HMO 22 can be changed while the host is online. However I/O activity may be affected when it is being changed. It is recommended to stop the host IO on the port where you want to change the HMO 22 setting. 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. 90 Solaris

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Table 19 Host group modes (options) Solaris
(continued)
Comments
Default
Function
Host
Group
Mode
Optional This mode is
common to all host
platforms.
Inactive
SIM report at link failure
Select HMO 13 to enable SIM notification
when the number of link failures detected
between ports exceeds the threshold.
13
NOTE:
Note:HMO 22
can be changed while the
host is online. However
I/O activity may be
affected when it is being
changed. It is
recommended to stop the
host IO on the port where
you want to change the
HMO 22 setting.
OFF
Veritas Cluster Server
When a reserved volume receives a Mode
Sense command from a node that is not
reserving this volume, the host will receive the
following responses from the storage system:
ON: Normal response
OFF (default): Reservation Conflict
NOTE:
•
When HMO 22 is ON, the volume status
(reserved/non-reserved) will be checked
more frequently (several tens of msec per
LU).
•
When HMO 22 is ON, the host OS will
not receive warning messages when a
Mode Select command is issued to a
reserved volume.
•
There is no impact on the Veritas Cluster
Server software when HMO 22 is OFF.
Set HMO 22 to ON when the software is
experiencing numerous reservation
conflicts.
•
Set HMO 22 to ON when Veritas Cluster
Server is connected.
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.
90
Solaris