Xsan 2 Administrator Guide
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Xsan 2 Administrator Guide
Xsan 2 Administrator Guide Help
Xsan 2
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Xsan 2 Administrator Guide
Contents
Preface: About This Book
What’s New in Xsan 2
Version Compatibility
Upgrading from an Earlier Version of Xsan
Getting Additional Information
Notation Conventions
Chapter 1: Overview of Xsan
Xsan Storage Area Networks
Shared SAN Volumes
Metadata Controllers
Clients
Network Connections
How Xsan Storage Is Organized
LUNs
Storage Pools
Affinities and Affinity Tags
Volumes
Folders with Affinities
How Xsan Uses Available Storage
Metadata and Journal Data
Striping at a Higher Level
Security
Expanding Storage
Xsan Capacities
Chapter 2: Planning a Storage Area Network
Hardware and Software Requirements
Supported Computers
Supported Storage Devices
Fibre Channel Fabric
Ethernet TCP/IP Network
Directory Services
Outgoing Mail Service
Planning Your SAN
Preliminary Planning Questions
Planning Considerations and Guidelines
Planning the Ethernet TCP/IP Network
Using a Private Metadata Network
Using Switches Instead of Hubs
Planning the Fibre Channel Network
Verifying Base Fibre Channel Performance
If Your Fibre Channel Fabric Is Running Slower Than Expected
Configuring RAID Systems
Installing the Latest Firmware
Connecting RAID Systems to an Ethernet Network
Choosing RAID Levels for LUNs
Adjusting RAID System Performance Settings
Chapter 3: Setting Up a Storage Area Network
Connecting Computers and Storage Devices
Preparing LUNs
Using Server Assistant to Configure Controllers
Managing Users and Groups with Xsan Admin
Using an Existing Open Directory Server
Using Another Directory Server
Using Xsan Admin
Installing Only the Xsan Admin Application
Connecting Through a Firewall
Xsan Admin Preferences
Getting Help
SAN and Volume Setup Summary
Setting Up an Xsan Volume on a SAN
Step 1: Set Up the Fibre Channel Network
Step 2: Set Up the Ethernet Networks
Step 3: Configure SAN Computers to Use a Time Server
Step 4: Set Up SAN Users and Groups
Step 5: Set Up RAID Systems
Step 6: Create a Metadata Array
Step 7: Install Xsan Software on Clients and Controllers
Step 8: Configure the SAN
Step 9: Create a Volume
Step 10: (Optional) Set Up SAN Status Notifications
Step 11: (Optional) Assign Folders to Affinity Tags
Step 12: (Optional) Set User and Group Quotas
Setting Up an Xsan Administrator Computer
Renaming a SAN
Removing a SAN
Managing Multiple SANs
Setting Up Additional SANs
Chapter 4: Managing SAN Storage
Adding Storage
Preparing LUNs
Finding the Drive Modules That Belong to a LUN
Adding a Volume to a SAN
Adding a Storage Pool to a Volume
Adding LUNs to a Storage Pool
Rearranging Fibre Channel Connections
Setting Up a Folder Affinity
Changing a Folder’s Storage Pool Affinity
Removing an Affinity
Changing Advanced Volume Settings
Setting the Block Allocation Size
Changing the Volume Allocation Strategy
Enabling or Disabling Spotlight on a Volume
Enabling Extended Attributes
Enabling or Disabling Access Control Lists
Changing the Windows ID Mapping
Changing Advanced Allocation and Cache Settings
Renaming a Volume
Changing Storage Pool Settings
Changing the Exclusivity of an Affinity Tag
Setting the Storage Pool Stripe Breadth
Checking Volume Fragmentation
Defragmenting a Volume
Checking the Integrity of a Volume
Checking RAID Devices
Repairing a Volume
Destroying a Volume
Chapter 5: Managing Clients and Users
Adding a Client
Adding an Xsan Serial Number
Moving a Client to Another SAN
Mounting a Volume on a Client
Changing Mount Options
Managing Users and Groups
Managing Users and Groups with Xsan Admin
Managing Users and Groups with Workgroup Manager
Adding SAN Users
Deleting SAN Users
Creating Groups
Deleting Groups
Changing Group Membership
Controlling Client and User Access
Controlling File and Folder Access Using the Finder
Controlling File and Folder Access Using Xsan Admin
Unmounting a Volume on a Client
Restricting a Client to Read-Only Access
Removing a Client from a SAN
Mapping Windows User and Group IDs
Setting SAN User and Group Quotas
About Xsan Quotas
Checking User Quota Status
Helping Users Check Quotas
Creating Local Home Folders for Network Accounts
Managing Client Computers Remotely
Controlling a Client Using Screen Sharing
Connecting to a Client Using SSH in Terminal
Managing a Client Server Using Server Admin
Chapter 6: Managing Metadata Controllers
Adding a Metadata Controller
Setting Controller Failover Priority
Switching to a Standby Controller
Finding Out Which Controller Is Hosting a Volume
Listing the Volumes Hosted by a Controller
Changing a Controller’s IP Address
Converting a Controller to a Client
Accessing Controller Computers Remotely
Controlling a Controller Using Screen Sharing
Connecting to a Controller Using SSH in Terminal
Managing a Controller Using Server Admin
Monitoring Controller Status
Chapter 7: Monitoring SAN Status
Checking SAN Status
Checking Volume Status
Monitoring RAID Devices
Checking Free Space on a Volume
Checking Free Space on a Storage Pool
Graphing SAN Resource Usage
Setting Up Status Notifications
Viewing Xsan Logs
Checking Volume Clients
Checking for Fibre Channel Connection Failures
Chapter 8: Solving SAN Problems
If You Can’t Connect to a Computer Using Xsan Admin
If You Can’t Install the Xsan Software
If Computers Aren’t Listed in Xsan Admin
If You Can’t Mount a Volume on a Client
If You Can’t Unmount a Volume on a Client
If RAID LUNs Aren’t Accessible over Fibre Channel
If You Have Problems Using Command-Line Tools
If a LUN Doesn’t Have as Much Space as Expected
If You Can’t Rename an Xsan Volume in the Finder
If You Can’t Add a Storage Pool
If Fibre Channel Performance Is Poorer Than Expected
If a Client Can’t Use a Volume After a Fibre Channel Interruption
If You Can’t Add LUNs to a Storage Pool
If the Capacity of a Larger LUN is Listed as 2 Terabytes
If File Copying Doesn’t Finish
If a Volume Unexpectedly Restarts
Appendix A: Combining Xsan Controllers and StorNext Clients
Compatible Software Versions
Terminology
Licensing
Adding StorNext Clients to an Xsan SAN
Appendix B: Using the Command Line
Using Shell Commands
Sending Commands to Remote Computers
Viewing the Man Pages
Notation Conventions
Installing Xsan from the Command Line
Xsan Commands
Viewing or Changing Volume and Storage Pool Settings (cvadmin)
Manipulating Affinity Tags (cvaffinity)
Copying Files or Folders (cvcp)
Checking or Repairing a Volume (cvfsck)
Labeling, Listing, and Unlabeling LUNs (cvlabel)
Creating a Folder and Assigning an Affinity (cvmkdir)
Creating and Preallocating a File (cvmkfile)
Initializing a Volume (cvmkfs)
Applying Volume Configuration Changes (cvupdatefs)
Defragmenting a File, Folder, or Volume (snfsdefrag)
Controlling the Xsan File System (xsanctl)
Mounting an Xsan Volume
Unmounting an Xsan Volume
Viewing Logs
Xsan Configuration Files
Glossary
Index
Xsan 2 Administrator Guide
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