8 Contents

 

 

 

Displaying the status of the DMP path restoration thread .................

161

 

Displaying information about the DMP error-handling thread .........

162

 

Configuring array policy modules ..........................................................

162

Chapter 4

Creating and administering disk groups

 

 

Specifying a disk group to commands ............................................................

167

 

System-wide reserved disk groups .........................................................

167

 

Rules for determining the default disk group .......................................

168

 

Displaying disk group information .................................................................

169

 

Displaying free space in a disk group .....................................................

170

 

Creating a disk group ........................................................................................

170

 

Adding a disk to a disk group ...........................................................................

171

 

Removing a disk from a disk group ................................................................

172

 

Deporting a disk group .....................................................................................

173

 

Importing a disk group .....................................................................................

174

 

Handling disks with duplicated identifiers ...................................................

175

 

Writing a new UDID to a disk ..................................................................

176

 

Importing a disk group containing cloned disks ..................................

176

 

Sample cases of operations on cloned disks ..........................................

178

 

Renaming a disk group .....................................................................................

183

 

Moving disks between disk groups .................................................................

184

 

Moving disk groups between systems ............................................................

185

 

Handling errors when importing disks ..................................................

186

 

Reserving minor numbers for disk groups ............................................

187

 

Compatibility of disk groups between platforms ..................................

189

 

Handling conflicting configuration copies ....................................................

190

 

Example of a serial split brain condition in a cluster ..........................

190

 

Correcting conflicting configuration information ...............................

194

 

Reorganizing the contents of disk groups .....................................................

195

 

Limitations of disk group split and join .................................................

199

 

Listing objects potentially affected by a move ......................................

200

 

Moving objects between disk groups ......................................................

203

 

Splitting disk groups .................................................................................

205

 

Joining disk groups ....................................................................................

206

 

Disabling a disk group .......................................................................................

207

 

Destroying a disk group ....................................................................................

208

 

Recovering a destroyed disk group .........................................................

208

 

Upgrading a disk group ....................................................................................

208

 

Managing the configuration daemon in VxVM ............................................

212

 

Backing up and restoring disk group configuration data ............................

213

 

Using vxnotify to monitor configuration changes .......................................

213