Using Serviceguard Extension for RAC, 9th Edition, September 2010

LVM will now recognize the I/O channel represented by/dev/dsk/c0t15d0 as the primary
link to the disk. If the primary link fails, LVM will automatically switch to the alternate I/O
channel represented by /dev/dsk/c1t3d0. Use the vgextend command to add additional
disks to the volume group, specifying the appropriate physical volume name for each PV link.
Repeat the entire procedure for each distinct volume group you wish to create. For ease of system
administration, you may wish to use different volume groups to separate logs from data and
control files.
NOTE: The default maximum number of volume groups in HP-UX version 2.0 is 10. If you
intend to create enough new volume groups that the total exceeds 10, you must increase the
maxvgs system parameter and then reboot the system. Use the kctune utility to change kernel
parameter area, then choose Configurable Parameters, maxvgs appears on the list.
Creating Logical Volumes for RAC on Disk Arrays
After you create volume groups and add PV links to them, you define logical volumes for data,
logs, and control files. The following are some examples:
# lvcreate -n ops1log1.log -L 4 /dev/vg_ops
# lvcreate -n opsctl1.ctl -L 4 /dev/vg_ops
# lvcreate -n system.dbf -L 28 /dev/vg_ops
# lvcreate -n opsdata1.dbf -L 1000 /dev/vg_ops
Oracle Demo Database Files
The following set of files is required for the Oracle demo database that can be created during the
installation process.
Table 2-1 Required Oracle File Names for Demo Database
Oracle File
Size (MB)*
Raw Logical Volume Path NameLV Size
(MB)
Logical Volume Name
110
/dev/vg_ops/ropsctl1.ctl
118
opsctl1.ctl
110
/dev/vg_ops/ropsctl2.ctl
118
opsctl2.ctl
110
/dev/vg_ops/ropsctl3.ctl
118
opsctl3.ctl
120
/dev/vg_ops/rops1log1.log
128
ops1log1.log
120
/dev/vg_ops/rops1log2.log
128
ops1log2.log
120
/dev/vg_ops/rops1log3.log
128
ops1log3.log
120
/dev/vg_ops/rops2log1.log
128
ops2log1.log
120
/dev/vg_ops/rops2log2.log
128
ops2log2.log
120
/dev/vg_ops/rops2log3.log
128
ops2log3.log
400
/dev/vg_ops/ropssystem.dbf
408
opssystem.dbf
800
/dev/vg_ops/ropssysaux.dbf
808
opssysaux.dbf
250
/dev/vg_ops/ropstemp.dbf
258
opstemp.dbf
120
/dev/vg_ops/ropsusers.dbf
128
opsusers.dbf
200
/dev/vg_ops/ropsdata1.dbf
208
opsdata1.dbf
200
/dev/vg_ops/ropsdata2.dbf
208
opsdata2.dbf
200
/dev/vg_ops/ropsdata3.dbf
208
opsdata3.dbf
5
/dev/vg_ops/ropsspfile1.ora
5
opsspfile1.ora
Creating a Storage Infrastructure with LVM 47