Dell PowerVault MD Series - Page 10

Re-Creating Snapshot Virtual Disks......................................................................................................................161
Disabling A Snapshot Virtual Disk........................................................................................................................162
Preparing Host Servers To Re-Create A Snapshot Virtual Disk.....................................................................162
Re-Creating A Snapshot Virtual Disk....................................................................................................................163
12 Premium Feature—Virtual Disk Copy................................................................................165
Using Virtual Disk Copy With Snapshot Or Snapshot (Legacy) Premium Feature...............................................165
Types Of Virtual Disk Copies.................................................................................................................................166
Offline Copy....................................................................................................................................................166
Online Copy....................................................................................................................................................166
Creating A Virtual Disk Copy For An MSCS Shared Disk......................................................................................166
Virtual Disk Read/Write Permissions....................................................................................................................167
Virtual Disk Copy Restrictions...............................................................................................................................167
Creating A Virtual Disk Copy.................................................................................................................................168
Setting Read/Write Permissions On Target Virtual Disk................................................................................168
Before You Begin...........................................................................................................................................168
Virtual Disk Copy And Modification Operations.............................................................................................168
Create Copy Wizard........................................................................................................................................169
Failed Virtual Disk Copy..................................................................................................................................169
Preferred RAID Controller Module Ownership.....................................................................................................169
Failed RAID Controller Module.............................................................................................................................169
Copy Manager......................................................................................................................................................170
Copying The Virtual Disk.......................................................................................................................................170
Storage Array Performance During Virtual Disk Copy.........................................................................................171
Setting Copy Priority.............................................................................................................................................171
Stopping A Virtual Disk Copy................................................................................................................................171
Recopying A Virtual Disk......................................................................................................................................172
Preparing Host Servers To Recopy A Virtual Disk.........................................................................................172
Recopying The Virtual Disk............................................................................................................................173
Removing Copy Pairs............................................................................................................................................173
13 Device Mapper Multipath For Linux...................................................................................175
Overview...............................................................................................................................................................175
Using DM Multipathing Devices...........................................................................................................................175
Prerequisites..................................................................................................................................................175
Device Mapper Configuration Steps....................................................................................................................176
Scan For Newly Added Virtual Disks.............................................................................................................176
Display The Multipath Device Topology Using The Multipath Command......................................................177
Create A New fdisk Partition On A Multipath Device Node...........................................................................177
Add A New Partition To Device Mapper........................................................................................................178
Create A File System On A Device Mapper Partition.....................................................................................178
Mount A Device Mapper Partition.................................................................................................................178