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Required Adapter and Server OS Settings

120 Dell EMC Storage Compatibility Matrix for SC, PS, and FS Series Arrays | DSCM

A.2.7 Citrix Hypervisor (XenServer)

A.2.7.1 XenServer 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 •le

located in the /opt/xensource/sm/ directory. When fnished, save the file and reboot the server.

Citrix XenServer HBA Settings for Versions 5.x to 6.2

Field

Setting

DEFAULT_TIMEOUT

MPATH_TIMEOUT

A.2.7.2 XenServer Version 6.5 and Later

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 •nished, save the •le 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 EMC recommends that

the default is set to 60.

Citrix XenServer HBA Settings for Version 6.5 and Later

Field

Setting

dev_loss_tmo