Logical Volume, properties

• The LVM (Logical Volume Manager) allows one to manage freely online: allocation, extension and mirroring of any LV on the PP scale. It’s a major and powerful tuning and security tool.

• All LV (except sysdumps) on the production are mirrored (copies=2)

• All LV must be inactive before varying off a VG.

• A raw LV is not “shadowed” by the VMM (Virtual Memory Manager) d ’AIX contrary to file systems (jfs LV).

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