Storage Policies
This chapter includes the following sections:
- Fibre Channel Adapter Policy
- SAN Connectivity Policy
- Storage Connection Policy
- Fibre Channel Zoning
- Direct-Attached Storage
Fibre Channel Adapter Policy
Fibre channel adapter policies govern the host-side behavior of the adapter, including how the adapter handles traffic. For example, you can use these policies to change default settings for the following:
-
Queues
-
Interrupt handling
-
Performance enhancement
-
RSS hash
-
Failover in an cluster configuration with two fabric interconnects
Operating System Specific Adapter Policies
By default, Cisco UCS provides a set of Fibre channel adapter policies. These policies include the recommended settings for each supported server operating system. Operating systems are sensitive to the settings in these policies. Storage vendors typically require non-default adapter settings. You can find the details of these required settings on the support list provided by those vendors.
Note |
We recommend that you use the values in these policies for the applicable operating system. Do not modify any of the values in the default policies unless directed to do so by Cisco Technical Support. |
Creating or Editing a Fibre Channel Adapter Policy
SAN Connectivity Policy
SAN connectivity policies determine the connections and the network communication resources between the server and the SAN on the network. These policies use pools to assign WWNs, and WWPNs to servers and to identify the vHBAs that the servers use to communicate with the network.
Note |
These policies are included in service profiles and service profile templates, and can be used to configure multiple servers. So, using static IDs in connectivity policies is not recommended. |
Creating or Editing a SAN Connectivity Policy
Step 1 | In the
Actions bar, type
Create
SAN Connectivity Policy and press Enter.
|
Step 2 | In the SAN Connectivity Policy dialog box, click Basic and choose the Organization in which you want to create the policy. |
Step 3 | Enter the
Name and optional
Description.
The name is case sensitive. |
Step 4 | In
Identifiers, choose the WWNN pool.
For more information, see Creating and Editing a WWN Pool. |
Step 5 | In vHBAs, create one or more vHBAs and select the properties. You can manually create the vHBA, use a vHBA template, or create a redundancy template pair. For more information, see Creating or Editing a vHBA Template. |
Step 6 | Click Create. |
Storage Connection Policy
The storage connection policy contains a collection of target storage ports on storage array that you use to configure fibre channel zoning.
From Cisco UCS Central you can create a storage connection policy in an organization.
Creating or Editing a Storage Connection Policy
Fibre Channel Zoning
Fibre Channel (FC) zoning allows you to partition the Fibre Channel fabric into one or more zones. Each zone defines the set of FC initiators and FC targets that can communicate with each other in a VSAN.
The access and data traffic control provided by zoning does the following:
Cisco UCS Central FC zoning combines direct attach storage with local zoning. Fibre Channel or FCoE storage is directly connected to the fabric interconnects, and zoning is performed in Cisco UCS Central, using Cisco UCS local zoning.
Configuring Zoning
Note |
This dialog box is read-only if the global service profile or service profile template you select already has a SAN connectivity policy associated with it. |
Direct-Attached Storage
Direct-attached storage (DAS) uses FC storage ports to connect an FC storage device to a port on the fabric interconnect.