Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Chapter 9 Migrating data from thick storage to thin
storage ........................................................................... 113
About using SmartMove to migrate to Thin Storage .......................... 113
Setting up SmartMove ................................................................ 113
Displaying the SmartMove configuration .................................. 114
Changing the SmartMove configuration ................................... 114
Migrating to thin provisioning ...................................................... 114
Chapter 10 Using SF Thin Reclamation .............................................. 117
Reclamation of storage on thin reclamation arrays .......................... 117
Identifying thin and thin reclamation LUNs .............................. 117
How reclamation on a deleted volume works ............................. 118
Thin Reclamation of a disk, a disk group, or an enclosure ............. 119
Thin Reclamation of a file system ............................................ 120
Triggering space reclamation ................................................. 121
Monitoring Thin Reclamation using the vxtask command .................. 121
Section 4 Making point-in-time copies .............................. 123
Chapter 11 Understanding point-in-time copy methods ............... 125
About point-in-time copies ........................................................... 125
Implementing point-in time copy solutions on a primary
host ............................................................................. 126
Implementing off-host point-in-time copy solutions ................... 127
About point-in-time copy technology ............................................. 133
Volume snapshots ................................................................ 134
Disk group split/join ............................................................. 136
Storage Checkpoints ............................................................. 137
Veritas FlashSnap Agent for Symmetrix ................................... 138
Point-in-time copy use cases ......................................................... 138
Chapter 12 Setting up volumes for instant snapshots ................... 141
About setting up volumes for instant snapshots ............................... 141
Additional preparation activities ................................................... 142
Preparing a volume for instant snapshot operations ......................... 143
Considerations for placing DCO plexes ..................................... 147
Creating a volume for use as a full-sized instant snapshot .................. 150
Creating a shared cache object ...................................................... 151
Tuning the autogrow attributes ............................................... 153
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