Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

NOTE: The VxFS file system must be mounted to get the benefits of the

SmartMove feature.

The following methods are available to add the LUNs:

■ Use the default settings:

# vxassist -g datadg mirror datavol da_name

■ Use the options for fast completion. The following command has more

I/O impact.

# vxassist -b -oiosize=1m -t thinmig -g datadg mirror \

datavol da_name

# vxtask monitor thinmig

TASKID PTID TYPE/STATE PCT PROGRESS

167 ATCOPY/R 00.34% 0/73400320/252416 PLXATT datavol datavol-02 datadg

167 ATCOPY/R 00.35% 0/73400320/259840 PLXATT datavol datavol-02 datadg

167 ATCOPY/R 00.36% 0/73400320/267264 PLXATT datavol datavol-02 datadg

■ Use the options for minimal impact. The following command takes longer

to complete:

# vxassist -oslow -g datadg mirror datavol da_name

Optionally, test the performance of the new LUNs before removing the old

LUNs.

To test the performance, use the following steps:

■ Determine which plex corresponds to the thin LUNs:

# vxprint -g datadg

TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTIL0 PUTIL0

dg datadg datadg - - - - - -

dm THINARRAY0_02 THINARRAY0_02 - 83886080 - - - -

dm STDARRAY1_01 STDARRAY1_01 - 41943040 - -OHOTUSE - -

v datavol fsgen ENABLED 41943040 - ACTIVE - -

pl datavol-01 datavol ENABLED 41943040 - ACTIVE - -

sd STDARRAY1_01-01 datavol-01 ENABLED 41943040 0 - - -

pl datavol-02 datavol ENABLED 41943040 - ACTIVE - -

sd THINARRAY0_02-01 datavol-02 ENABLED 41943040 0 - - -

Migrating arrays

Migrating to thin provisioning

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