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User Guide
Page vi
6.2.5
QSFP (Quad Small Form-factor Pluggable) HBA (Host Bus Adapter) ...............................................6-2
6.3
How Xsan Storage Is Organized ............................................................................................... 6-2
6.4
Xsan Storage Breakdown .......................................................................................................... 6-3
6.4.1
LUNs ....................................................................................................................................................6-3
6.4.2
Storage Pools ........................................................................................................................................6-3
6.4.3
Volumes ...............................................................................................................................................6-4
6.5
How Xsan Uses Available Storage ............................................................................................ 6-4
6.5.1
Metadata and Journal Data ...................................................................................................................6-4
6.5.2
Striping at a Higher Level ....................................................................................................................6-5
6.6
Setting Up an ExaSAN-enabled Xsan ....................................................................................... 6-5
6.6.1
Connecting Computers and Storage to ExaSAN Switch ......................................................................6-5
6.6.2
Connecting Xsan Metadata Private Ethernet Network .........................................................................6-5
6.6.3
Check LUNs from the System Profiler .................................................................................................6-5
6.6.4
Install Xsan Software on Xsan Metadata Controllers and All Clients ..................................................6-6
6.6.5
Configuring the Xsan ...........................................................................................................................6-8
6.6.6
Creating an Xsan Volume .................................................................................................................. 6-13
6.6.6.1
Labeling LUNs ........................................................................................................................... 6-13
6.6.6.2
Creating a Volume ...................................................................................................................... 6-14
6.6.7
A Sample Xsan Volume Configuration .............................................................................................. 6-15
6.6.7.1
Checking LUNs from the Xsan Admin ...................................................................................... 6-16
6.6.7.2
Labeling LUNs ........................................................................................................................... 6-16
6.6.7.3
Creating an Xsan Volume ........................................................................................................... 6-17
6.6.7.4
Mounting or Un-mounting a Volume ......................................................................................... 6-20
6.7
Managing Xsan Storage ........................................................................................................... 6-21
6.7.1
Expanding the Capacity of Xsan Volume .......................................................................................... 6-21
6.7.2
Performance Optimized ExaSAN Configuration ............................................................................... 6-22
6.7.3
Measuring the Total Xsan Volume Bandwidth .................................................................................. 6-23
6.8
Managing Xsan Clients ............................................................................................................ 6-23
6.8.1
Adding an Xsan Client ....................................................................................................................... 6-23
6.8.2
Mounting a Volume on a Client ......................................................................................................... 6-24
6.9
Get Xsan Help ........................................................................................................................... 6-25
7.
Migrating from PCIe DAS to ExaSAN ............................................................................................. 7-1
7.1
DAS Configuration ..................................................................................................................... 7-1
7.2
Expanding to Xsan ..................................................................................................................... 7-1
7.3
Copying Files from DAS Volume to Xsan Volume.................................................................. 7-2
7.4
Repurposing the DAS RAID to Enlarge the Xsan Volume .................................................... 7-2
7.5
Expanding the Xsan Clients ...................................................................................................... 7-3
8.
ExaSAN LUN Masking Overview ..................................................................................................... 8-1
8.1
What is LUN Masking ............................................................................................................... 8-1
8.2
Accessing LUN Masking ............................................................................................................ 8-1
8.3
Managing LUN MASKING ....................................................................................................... 8-1
8.4
LUN Masking Applications: Virtual Private Storage ............................................................. 8-3
Appendices .............................................................................................................................................. 8.4-1
