Accusys ExaRAID GUI - Manual (Page 11)

Contents
ix
Chapter 5: Advanced Functions
5.1 Multi-Path IO Solutions ..................................................................................5-1
5.1.1 Overview .................................................................................................5-1
5.1.2 Benefits ...................................................................................................5-1
5.1.3 Configuring MPIO Hosts and RAID Controller ........................................5-2
5.1.4 Windows Multi-Path Solution: PathGuard ...............................................5-7
5.1.5 Linux Multi-Path Solution ......................................................................5-12
5.1.6 MAC Multi-Path Solution .......................................................................5-16
5.1.7 VMware ESX Server Multi-Path Solution ..............................................5-16
5.1.8 Sun Solaris 10 OS Multi-Path Solution .................................................5-17
5.2 Multiple ID solutions .....................................................................................5-18
5.2.1 Overview ...............................................................................................5-18
5.3 Redundant Controller ...................................................................................5-21
5.3.1 Overview ...............................................................................................5-21
5.3.2 Controller Data Synchronization ...........................................................5-23
5.3.3 Redundant-Controller System Configuration with MPIO ......................5-25
5.3.4 Controller and Path Failover/Failback Scenarios ..................................5-34
5.4 Snapshot ......................................................................................................5-38
5.4.1 Introduction ...........................................................................................5-38
5.4.2 How Snapshot Works ...........................................................................5-39
5.4.3 How to Use Snapshots .........................................................................5-41
5.4.4 Snapshot Utility and Scripting ...............................................................5-45
5.5 Dynamic Capacity Management ..................................................................5-48
5.5.1 Free chunk defragmentation .................................................................5-50
5.5.2 Logical disk shrink ................................................................................5-51
5.5.3 Logical disk expansion ..........................................................................5-52
5.5.4 Disk group expansion ...........................................................................5-53
5.5.5 Volume expansion and shrink ...............................................................5-54
5.5.6 Windows DiskPart Utility .......................................................................5-55
5.6 RAIDGuard Central ......................................................................................5-58
5.6.1 Introduction ...........................................................................................5-58
5.6.2 Deployment Overview ...........................................................................5-59
5.6.3 Installing the RAIDGuard Central .........................................................5-61
5.6.4 Uninstalling the RAIDGuard Central .....................................................5-62
5.6.5 Launching the RAIDGuard Central .......................................................5-62
5.6.6 RGC GUI Overview ..............................................................................5-65
5.6.7 RAID System Registration ....................................................................5-67
5.6.8 RAID System Monitoring ......................................................................5-71
5.6.9 Configuring MSN Event Notification .....................................................5-72
5.7 VDS Provider ...............................................................................................5-73
5.7.1 Overview ...............................................................................................5-73