4 Contents
35 Anities and anity tags
36 Volumes
36 Folders with anities
37 How Xsan uses available storage
37 Metadata and journal data
37 Stripe at a higher level
38 Security
38 Expand storage
38 Xsan capacities
40 Chapter 3: Plan a SAN
40 Hardware and software requirements
40 Supported computers
41 Supported storage devices
41 Fibre Channel fabric
42 Ethernet TCP/IP network
43 Directory services
44 Outgoing mail service
44 Plan your SAN
45 Preliminary planning questions
45 Planning considerations and guidelines
51 Plan the Ethernet TCP/IP network
52 Use a private metadata network
52 Use switches instead of hubs
52 Plan the Fibre Channel network
52 Verify base Fibre Channel performance
52 If your Fibre Channel fabric is running slowly
53 Congure RAID systems
53 Install the latest rmware
54 Connect RAID systems to an Ethernet network
54 Choose RAID levels for LUNs
54 Adjust RAID system performance settings
56 Chapter 4: Set up a SAN
56 Connect computers and storage devices
56 Prepare LUNs
57 Use the server setup assistant to congure controllers
57 Manage users and groups with Xsan Admin
57 Use an existing Open Directory server
58 Use another directory server
58 Use Xsan Admin
58 Connect through a rewall
58 Xsan Admin preferences
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