6 Contents

 

 

 

DCO volume versioning ..............................................................................

68

 

FastResync limitations ...............................................................................

74

 

Hot-relocation ......................................................................................................

75

 

Volume sets ..........................................................................................................

75

Chapter 2

Administering disks

 

 

Disk devices ..........................................................................................................

77

 

Disk device naming in VxVM .....................................................................

78

 

Private and public disk regions .................................................................

80

 

Discovering and configuring newly added disk devices ................................

82

 

Partial device discovery ..............................................................................

82

 

Discovering disks and dynamically adding disk arrays .........................

83

 

Third-party driver coexistence ..................................................................

84

 

Administering the Device Discovery Layer .............................................

85

 

Placing disks under VxVM control ...................................................................

90

 

Changing the disk-naming scheme ...................................................................

91

 

Regenerating persistent device names ....................................................

93

 

Changing device naming for TPD-controlled enclosures ......................

94

 

Discovering the association between enclosure and OS based disk names 94

 

Issues regarding persistent simple or nopriv disks with enclosure-based

 

naming ...................................................................................................

94

 

Installing and formatting disks .........................................................................

96

 

Displaying and changing default disk layout attributes ...............................

97

 

Adding a disk to VxVM .......................................................................................

97

 

Reinitializing a disk ...................................................................................

101

 

Using vxdiskadd to place a disk under control of VxVM .....................

101

 

Rootability .........................................................................................................

102

 

VxVM root disk volume restrictions .......................................................

103

 

Root disk mirrors .......................................................................................

103

 

Booting root volumes ................................................................................

104

 

Setting up a VxVM root disk and mirror ................................................

104

 

Creating an LVM root disk from a VxVM root disk ..............................

106

 

Adding swap volumes to a VxVM rootable system ...............................

107

 

Adding persistent dump volumes to a VxVM rootable system ..........

107

 

Removing a persistent dump volume .....................................................

108

 

Dynamic LUN expansion ..................................................................................

108

 

Removing disks ..................................................................................................

110

 

Removing a disk with subdisks ................................................................

111

 

Removing a disk with no subdisks ..........................................................

112

 

Removing a disk from VxVM control .............................................................

112

 

Removing and replacing disks .........................................................................

112

 

Replacing a failed or removed disk .........................................................

115

 

Enabling a disk ...................................................................................................

117