HP-UX HB v13.00 Ch-13 - LVM

HP-UX Handbook – Rev 13.00 Page 4 (of 110)
Chapter 13 LVM
October 29, 2013
Removing a PV / VG / LV ___________________________________________________________ 30
Remove an LV __________________________________________________________________________ 30
Remove a PV from a VG __________________________________________________________________ 30
Remove a VG ___________________________________________________________________________ 30
Moving physical extents ___________________________________________________________ 31
Importing and exporting VGs _______________________________________________________ 32
MirrorDisk/UX ______________________________________________________________ 33
Basic functionality ________________________________________________________________ 33
Physical Volume Groups - PVGs______________________________________________________ 34
Root Mirror (PA-RISC Systems) ______________________________________________________ 36
Root Mirror (Itanium based Systems) _________________________________________________ 37
PV Links (Alternate Paths) _____________________________________________________ 41
Configuring PV Links ______________________________________________________________ 42
Changing PV Link order ____________________________________________________________ 44
Utility cmpdisks __________________________________________________________________ 44
LVM striping ________________________________________________________________ 45
Introduction _____________________________________________________________________ 45
Striping and Distributed Allocation Policy _____________________________________________ 46
Comments on Physical Volume Groups (PVGs) _________________________________________ 49
Offline Diagnostic Environment (ODE) ___________________________________________ 51
LVM and Serviceguard (Cluster LVM) ____________________________________________ 53
Replacing a Failed LVM Disk ___________________________________________________ 54
Identifying the failed disk __________________________________________________________ 55
Disk Replacement Flow Chart _______________________________________________________ 56
Attached vs. Unattached ___________________________________________________________ 58
New LVM OLR (Online Replacement) feature __________________________________________ 58
Hot-Swap Procedure ______________________________________________________________ 59
Removing a Ghost Disk using the PV Key _________________________________________ 61
What is a Ghost Disk ______________________________________________________________ 61
Increasing the Root LV's size ___________________________________________________ 67
Using Ignite/UX __________________________________________________________________ 67
Using the Unofficial Procedure ______________________________________________________ 70
LIF/BDRA Configuration Procedure ______________________________________________ 73