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TimeFinder
(SUN)
Summary:
In this exercise,
students will explore the Volume Manager considerations when making
File systems on BCVs and Standard Volumes available to the same
SUN host simultaneously. The process of establishing a BCV pair copies
all data from the Standard Volume to the BCV, including the LVM label. This
results in the disk not being uniquely identified. Procedures required to
resolve this duplication will be studied in this exercise.
Objectives:
a)
Establish BCVs with Standard Volumes and verify that they are fully
synchronized.
b)
Split the BCVs and the Standard Volumes.
c)
Make the data on the BCVs available to the same
host.
d)
Re-establish the BCVs and the Standard Volumes.
1.
Verify that the Volume Group and file system you created in the previous
exercise is available.
a)
Verify that
the file systems are mounted and contain data.
#
mount
# ls –al /mymp1(2)
2.
Verify that the SYMCLI Device Group contains the correct devices.
c)
Unmount the file systems on the Standard Volumes.
#
umount /mymp1(2)
d)
Split the Standard Volumes and the BCVs.
#
symmir split
Duplicate
disk identifiers on the BCVs.
When a BCV is established to a Standard Volume, all information is
synchronized from the Standard to the BCV, including the LVM label.
To view the mirrored data on the BCV volumes, we will need to mount the
BCV volumes to a unique mount point.
4.
Create new directories for the BCV volumes
#
mkdir /bcvmp1(2)
5.
Mount the file systems.
# mount /dev/dsk/c#t#ds0 /mymp1(2)
#
mount /dev/dsk/c#t#ds0 /bcvmp1(2)
a)
# diff /mymp1(2)
/bcvmp1(2)
This concludes the TimeFinder. Please unmount your
file systems, remove the mount point directories, and delete the SYMCLI Device
Group mystddg
1.
umount /mymp1(2)
2.
umount /bcvmp1(2)
3.
rmdir /mymp1(2)
4.
rmdir /bcvmp1(2)
5.
symdg
–force delete mystddg
Good Luck!
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