Table 18. iSCSI HBA Settings
Field
Settings
ARP Redirect
Enabled
Settings by Server Operating System
To ensure effective communication with the Storage Center, configure the HBA settings from the server operating system. The following
server operating systems can be configured to provide more effective communication with Storage Center.
•
•
•
•
Citrix XenServer
Configure the server HBA settings for the Citrix XenServer to ensure that the server performs a proper storage system failover when
working with Storage Center.
NOTE:
If the server is configured in a high-availability cluster, contact Citrix for best practices for setting high-availability
timeout values.
Versions 5.x to 6.2
For Citrix XenServer versions 5.x through 6.2, to ensure that XenServer volumes will persist after a Storage Center controller failover, apply
the following timeout values. These settings are located in the
mpathHBA
file located in the
/opt/xensource/sm/
directory. When
finished, save the file and reboot the server.
Table 19. Citrix XenServer HBA Settings for Versions 5.x to 6.2
Field
Setting
DEFAULT_TIMEOUT
60
MPATH_TIMEOUT
60
Version 6.5
For Citrix XenServer version 6.5 and later, the multipath configuration file has been relocated. To ensure that XenServer volumes will persist
after a Storage Center controller failover, apply the following timeout value. This setting is located in the
defaults
section of the
multipath.conf
configuration file located in the
/etc
directory. When finished, save the file and reboot the server.
The following code provides an example:
defaults {
user_friendly_names no
replace_wwid_whitespace yes
dev_loss_tmo 30
}
NOTE:
The default value for the
dev_loss_tmo
timeout setting is 30. However, Dell recommends that the default is set to 60.
104
HBA Server Settings
