Full-Sized Instant Volume Snapshots - method 1: addmir to have 1 plex to attach to the volume.

1. A mirrored-volume created with 2 plexes and fastresync turned on
====================================================================

pw250(root)::vxsnap -g tdg prepare v8

pw250(root)::vxprint -htg tdg v8
V NAME RVG/VSET/CO KSTATE STATE LENGTH READPOL PREFPLEX UTYPE
PL NAME VOLUME KSTATE STATE LENGTH LAYOUT NCOL/WID MODE
SD NAME PLEX DISK DISKOFFS LENGTH [COL/]OFF DEVICE MODE
SV NAME PLEX VOLNAME NVOLLAYR LENGTH [COL/]OFF AM/NM MODE
SC NAME PLEX CACHE DISKOFFS LENGTH [COL/]OFF DEVICE MODE
DC NAME PARENTVOL LOGVOL
SP NAME SNAPVOL DCO
EX NAME ASSOC VC PERMS MODE STATE
SR NAME KSTATE

v v8 - ENABLED ACTIVE 409600 SELECT - fsgen
pl v8-01 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk1-01 v8-01 disk1 0 409600 0 c2t8d18 ENA
pl v8-02 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk2-01 v8-02 disk2 0 409600 0 c2t8d19 ENA
dc v8_dco v8 v8_dcl
v v8_dcl - ENABLED ACTIVE 544 SELECT - gen
pl v8_dcl-01 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk6-01 v8_dcl-01 disk6 0 544 0 c2t8d17 ENA
pl v8_dcl-02 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk3-01 v8_dcl-02 disk3 0 544 0 c2t8d20 ENA



2.Additional snap plex has been added to the volume.

pw250(root)::vxsnap -g tdg addmir v8 plex=v8snap-v3 alloc=disk4
====================================================================
v v8 - ENABLED ACTIVE 409600 SELECT - fsgen
pl v8-01 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk1-01 v8-01 disk1 0 409600 0 c2t8d18 ENA
pl v8-02 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk2-01 v8-02 disk2 0 409600 0 c2t8d19 ENA
pl v8-03 v8 ENABLED SNAPDONE 409600 CONCAT - WO
sd disk4-01 v8-03 disk4 0 409600 0 c2t8d21 ENA
dc v8_dco v8 v8_dcl
v v8_dcl - ENABLED ACTIVE 544 SELECT - gen
pl v8_dcl-01 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk6-01 v8_dcl-01 disk6 0 544 0 c2t8d17 ENA
pl v8_dcl-02 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk3-01 v8_dcl-02 disk3 0 544 0 c2t8d20 ENA
pl v8_dcl-03 v8_dcl DISABLED DCOSNP 544 CONCAT - RW
sd disk4-02 v8_dcl-03 disk4 409600 544 0 c2t8d21 ENA




3. After break off the plex, it is used to create new snapshot volume

pw250(root)::vxsnap -g tdg make source=v8/newvol=v8snapvol/plex=v8-03
pw250(root)::
================================================================

v v8 - ENABLED ACTIVE 409600 SELECT - fsgen
pl v8-01 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk1-01 v8-01 disk1 0 409600 0 c2t8d18 ENA
pl v8-02 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk2-01 v8-02 disk2 0 409600 0 c2t8d19 ENA
dc v8_dco v8 v8_dcl
v v8_dcl - ENABLED ACTIVE 544 SELECT - gen
pl v8_dcl-01 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk6-01 v8_dcl-01 disk6 0 544 0 c2t8d17 ENA
pl v8_dcl-02 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk3-01 v8_dcl-02 disk3 0 544 0 c2t8d20 ENA
sp v8snapvol_snp v8 v8_dco

v v8snapvol - ENABLED ACTIVE 409600 ROUND - fsgen
pl v8-03 v8snapvol ENABLED ACTIVE 409600 CONCAT - RW
sd disk4-01 v8-03 disk4 0 409600 0 c2t8d21 ENA
dc v8snapvol_dco v8snapvol v8snapvol_dcl
v v8snapvol_dcl - ENABLED ACTIVE 544 ROUND - gen
pl v8_dcl-03 v8snapvol_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk4-02 v8_dcl-03 disk4 409600 544 0 c2t8d21 ENA
sp v8_snp v8snapvol v8snapvol_dco
pw250(root)::




4. Split the diskgroup to create a new snap diskgroup
============================================================

pw250(root)::vxdg split tdg snapdg v8snapvol
pw250(root)::
pw250(root)::vxprint -htg snapdg
............
..........

dg snapdg default default 46000 1207136413.39.pw250

dm disk4 c2t8d21s2 auto 65536 10141440 -

v v8snapvol - DISABLED ACTIVE 409600 ROUND - fsgen
pl v8-03 v8snapvol DISABLED ACTIVE 409600 CONCAT - RW
sd disk4-01 v8-03 disk4 0 409600 0 c2t8d21 ENA
dc v8snapvol_dco v8snapvol v8snapvol_dcl
v v8snapvol_dcl - DISABLED ACTIVE 544 ROUND - gen
pl v8_dcl-03 v8snapvol_dcl DISABLED ACTIVE 544 CONCAT - RW
sd disk4-02 v8_dcl-03 disk4 409600 544 0 c2t8d21 ENA
sp v8_snp v8snapvol v8snapvol_dco


pw250(root)::vxprint -htg tdg
............
.....

v v8 - ENABLED ACTIVE 409600 SELECT - fsgen
pl v8-01 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk1-01 v8-01 disk1 0 409600 0 c2t8d18 ENA
pl v8-02 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk2-01 v8-02 disk2 0 409600 0 c2t8d19 ENA
dc v8_dco v8 v8_dcl
v v8_dcl - ENABLED ACTIVE 544 SELECT - gen
pl v8_dcl-01 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk6-01 v8_dcl-01 disk6 0 544 0 c2t8d17 ENA
pl v8_dcl-02 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk3-01 v8_dcl-02 disk3 0 544 0 c2t8d20 ENA
sp v8snapvol_snp v8 v8_dco


5. EXport the diskgroup
=========================
pw250(root)::vxdg deport snapdg
pw250(root)::vxdg list
NAME STATE ID
oracledg enabled,cds 1205751433.22.pw450
tdg enabled,cds 1207125877.35.pw250




6. Import the diskgroup on the remote host
===========================================

pw450(root)-->vxdg import snapdg
pw450(root)-->vxrecover -g snapdg -sb
pw450(root)-->
pw450(root)-->vxprint -htg snapdg
.........
..........

dg snapdg default default 46000 1207136413.39.pw250

dm disk4 c3t18d21s2 auto 65536 10141440 -

v v8snapvol - ENABLED ACTIVE 409600 ROUND - fsgen
pl v8-03 v8snapvol ENABLED ACTIVE 409600 CONCAT - RW
sd disk4-01 v8-03 disk4 0 409600 0 c3t18d21 ENA
dc v8snapvol_dco v8snapvol v8snapvol_dcl
v v8snapvol_dcl - ENABLED ACTIVE 544 ROUND - gen
pl v8_dcl-03 v8snapvol_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk4-02 v8_dcl-03 disk4 409600 544 0 c3t18d21 ENA
sp v8_snp v8snapvol v8snapvol_dco
pw450(root)-->
pw450(root)-->
pw450(root)-->mount -F vxfs /dev/vx/dsk/snapdg/v8snapvol /vsnap
pw450(root)-->
pw450(root)-->df -h /vsnap
Filesystem size used avail capacity Mounted on
/dev/vx/dsk/snapdg/v8snapvol
200M 2.1M 186M 2% /vsnap



7. Deport from remote host and import on original host
==========================================================

pw450(root)-->umount /vsnap
pw450(root)-->
pw450(root)-->vxdg deport snapdg

pw250(root)::vxdg import snapdg
pw250(root)::
pw250(root)::vxrecover -g snapdg -sb
pw250(root)::


8. Join the snap disk group into original disk group
=========================================================
pw250(root)::vxdg join snapdg tdg
pw250(root)::vxprint -htg tdg
..........
...

dg tdg default default 15000 1207125877.35.pw250

dm disk1 c2t8d18s2 auto 65536 10141440 -
dm disk2 c2t8d19s2 auto 65536 10141440 -
dm disk3 c2t8d20s2 auto 65536 10141440 -
dm disk4 c2t8d21s2 auto 65536 10141440 -
dm disk5 c2t8d22s2 auto 65536 10141440 -
dm disk6 c2t8d17s2 auto 65536 20381440 -

v v8 - ENABLED ACTIVE 409600 SELECT - fsgen
pl v8-01 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk1-01 v8-01 disk1 0 409600 0 c2t8d18 ENA
pl v8-02 v8 ENABLED ACTIVE 409600 CONCAT - RW
sd disk2-01 v8-02 disk2 0 409600 0 c2t8d19 ENA
dc v8_dco v8 v8_dcl
v v8_dcl - ENABLED ACTIVE 544 SELECT - gen
pl v8_dcl-01 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk6-01 v8_dcl-01 disk6 0 544 0 c2t8d17 ENA
pl v8_dcl-02 v8_dcl ENABLED ACTIVE 544 CONCAT - RW
sd disk3-01 v8_dcl-02 disk3 0 544 0 c2t8d20 ENA
sp v8snapvol_snp v8 v8_dco

v v8snapvol - DISABLED ACTIVE 409600 ROUND - fsgen
pl v8-03 v8snapvol DISABLED ACTIVE 409600 CONCAT - RW
sd disk4-01 v8-03 disk4 0 409600 0 c2t8d21 ENA
dc v8snapvol_dco v8snapvol v8snapvol_dcl
v v8snapvol_dcl - DISABLED ACTIVE 544 ROUND - gen
pl v8_dcl-03 v8snapvol_dcl DISABLED ACTIVE 544 CONCAT - RW
sd disk4-02 v8_dcl-03 disk4 409600 544 0 c2t8d21 ENA
sp v8_snp v8snapvol v8snapvol_dco



9. Start the snap volume as it is in disabled state

Refresh the snap volume with start the resync process with the orignial volume.
========================================================
pw250(root)::vxvol -g tdg start v8snapvol
pw250(root)::vxsnap -g tdg refresh v8snapvol