Apple Xsan 2 (Third Edition) - Manual (Page 48)

Stripe Breadth: Specify how much data is written to or read from each LUN in storage
pools that have this affinity tag (or each LUN in the custom storage pool) before
moving to the next LUN. This value can affect performance. If you’re not sure what
value to use, accept the preset value.
5 If the Volume Failover Priority pane appears, arrange the list so as few SAN volumes as
possible have the same metadata controller first on their failover priority lists, and then
click Continue.
6 In the Setup Complete pane, click Continue.
Xsan Admin displays a summary of your SAN configuration and the new volume is
mounted and ready to use in the Finder on all clients and metadata controllers.
For information about creating additional volumes, see “Adding a Volume to a SAN” on
page 53.
Step 10: (Optional) Set Up SAN Status Notifications
Xsan is initially set to notify the administrator by email when the status of the SAN
changes. You can have notifications sent to additional email addresses or text-
messaging addresses using an SMTP server, and you can choose conditions that
trigger notification to each address. If you don’t want to customize notifications now,
you can do it later.
For instructions, see “Setting Up Status Notifications” on page 97.
Step 11: (Optional) Assign Folders to Affinity Tags
If you want to force files to be stored in specific storage pools, assign the affinity tag of
the pools to a folder. Then, files that users put in the folder are stored only on storage
pools that have that affinity tag. For instructions, see “Setting Up a Folder Affinity” on
page 57.
Step 12: (Optional) Set User and Group Quotas
You can set up quotas to control how much space on each SAN volume is used by
each user or group. For instructions, see “Setting SAN User and Group Quotas” on
page 79.
48 Chapter 3 Setting Up a Storage Area Network