Apple Xsan User Manual download pdf (Page 46)

Step 9: Create a Volume

When the Xsan setup assistant nishes basic SAN conguration, it asks if you want to

create a volume.

To create a volume:

1 In the “Create Volume” pane, select “Create a volume now” and click Continue.

If you want to create volumes later, follow the instructions in “Adding a Volume to a

SAN” on page 53.

2 In the “Volume Name and Type” pane, enter a name for the volume and choose a

volume type that matches the type of work the volume will support.

For the volume name, use only uppercase letters (A–Z), lowercase letters (a–z),

numbers (0–9), and underscores ( _ ). Don’t include spaces or hyphens. The maximum

length is 70 characters.

The volume type you choose determines how the setup assistant congures anity

tags and storage pools on the volume. For information, see “How Xsan Storage Is

Organized” on page 16.

Optionally, click Advanced Settings and adjust the following volume settings:

Block Allocation Size: If you’re not sure what value to use, use the preset size or see

“Setting the Block Allocation Size” on page 59.

Allocation Strategy: Choose how storage for les is allocated among the storage

pools that belong to the volume. If you choose Round Robin, each request for space is

assigned to the next available storage pool in turn. If you choose Fill, space is allocated

on the rst storage pool until it’s full, then on the second storage pool, and so on.

If you choose Balance, space is allocated on the storage pool with the most free space.

For more information, see “Choosing an Allocation Strategy” on page 31.

46 Chapter 3 Setting Up a Storage Area Network

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Apple Xsan User Manual Page 46