Figure 6 Shared FC storage
Citrix XenServer and NetApp Storage Best Practices 15 Configuration and Setup NetApp Device Configuration Basics This section covers the best practices for configuring the NetApp active-active controller configuration. Configuring Target Portal Groups for iSCSI connections Considerations when using Target Portal Groups: (for more information, please consult the Data ONTAP admin guide located at ) 1. Adding or removing a NIC may change the target portal group assignments. Be sure to verify the target portal group settings are correct after adding or removing hardware, especially in active-active controller configuration. 2. When used with multi-connection sessions, the Windows iSCSI software initiator creates a persistent association between the target portal group tag value and the target interfaces. If the tag value changes while an iSCSI session is active, the initiator will be able to recover only one connection for a session. To recover the remaining connections, you must refresh the initiator‟s target information. If you want to employ multi-connection sessions to improve performance and reliability, you must use target portal groups to define the interfaces available for each iSCSI session. Create a target portal group that contains all of the interfaces you want to use for one iSCSI session. However, note that you cannot combine iSCSI hardware-accelerated interfaces with standard iSCSI storage system interfaces in the same target portal group. When you create a target portal group, the specified interfaces are removed from their current groups and added to the new group. Any iSCSI sessions using the specified interfaces are terminated, but the initiator should automatically reconnect. However, initiators that create a persistent association between the IP address and the target portal group will not be able to reconnect. 1. Open console connection to the NetApp active-active controller configuration, and run the iSCSI tpgroup command iscsi tpgroup create [-f] tpgroup_name [-t tag ] [ interface ...] -f forces the new group to be created, even if that terminates an existing session using one of the interfaces being added to the group. tpgroup_name is the name of the group being created (1 to 32 characters, no spaces or non-printing characters). -t tag sets the target portal group tag to the specified value. In general you should accept the default tag value. User- specified tags must be in the range 1 to 256. interface ... is the list of interfaces to include in the group, separated by spaces. For example, the following command creates a target portal group named xenstorage_iscsi_group that includes interfaces e0c and e0d. iscsi tpgroup create xenstorage_iscsi_group e0c e0d 2. Enable target portal group interfaces to accept iSCSI connections iscsi interface enable e0c iscsi interface enable e0d
Citrix XenServer and NetApp Storage Best Practices 16 Configuring a Dynamic Multimode Virtual Interface (VIF) Throughput can be improved by creating a multimode VIF.
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- Fall '19