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Qsan Document –User Manual
SNAPSHOTS ................................................................................................................................................ 148
Take a Snapshot .............................................................................................................................. 149
Cleanup Snapshots.......................................................................................................................... 150
Schedule Snapshots ........................................................................................................................ 151
Rollback........................................................................................................................................... 151
Snapshot Constraint........................................................................................................................ 152
CLONE ....................................................................................................................................................... 154
Setup Clone..................................................................................................................................... 154
Start and Stop Clone ....................................................................................................................... 155
Schedule Clone................................................................................................................................ 155
Cloning Options............................................................................................................................... 156
Clear Clone...................................................................................................................................... 157
Clone Constraint ............................................................................................................................. 157
QREPLICAS ................................................................................................................................................. 158
Create QReplica Task ...................................................................................................................... 159
Start and Stop QReplica Task .......................................................................................................... 162
MPIO ............................................................................................................................................... 162
MC/S ............................................................................................................................................... 163
Task Shaping ................................................................................................................................... 163
Schedule QReplica Task .................................................................................................................. 164
QReplica Options ............................................................................................................................ 165
Delete QReplica Task ...................................................................................................................... 166
Clone Transfers to QReplica............................................................................................................ 166
FAST REBUILD ............................................................................................................................................. 169
Solution........................................................................................................................................... 169
Configuration .................................................................................................................................. 170
Constraint........................................................................................................................................ 170
SSD CACHING ............................................................................................................................................. 171
Solution........................................................................................................................................... 171
Methodology................................................................................................................................... 171
Populating the Cache ...................................................................................................................... 172
Read/Write Cache Cases................................................................................................................. 172
I/O Type .......................................................................................................................................... 174
Configuration .................................................................................................................................. 176
Constraint........................................................................................................................................ 177
Chapter 6 TROUBLESHOOTING..........................................................................................................................178
SYSTEM BUZZER .......................................................................................................................................... 178