How to extend physical volume using LVM

I have a HP Proliant DL740 G1 server running RHEL AS 3 update 4.

I created 10GB of disk space on a EVA3000 SAN and presented to the
server.

I then used fdisk to create a partition of 5GB out of the 10GB I
presented to the server by the EVA3000. I then used LVM to create the
physical volume, volume groups and logical volumes accordingly.

But now I need to extend the physical size from 5Gb to 10Gb.

Can I extend the physical size from 5Gb to 10Gb using LVM commands?


See below the current set up of the partions, physical volume, volume
group and logical volumes on the server.

As you can see fdisk displays 10Gb space on /dev/sdb1.

fdisk -l /dev/sdb

Disk /dev/sdb: 10.7 GB, 10737418240 bytes
255 heads, 63 sectors/track, 1305 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/sdb1             1       653   5245191   83  Linux



See below pvdisplay shows 5GB of physical space allocated.


# pvdisplay /dev/sdb1
--- Physical volume ---
PV Name               /dev/sdb1
VG Name               vg_dba
PV Size               5 GB [10490382 secs] / NOT usable 32.19 MB [LVM:
128 KB]
PV#                   1
PV Status             NOT available
Allocatable           yes (but full)
Cur LV                1
PE Size (KByte)       32768
Total PE              159
Free PE               0
Allocated PE          159
PV UUID               ZWttEO-GbCt-Qaux-oGRK-vq7S-E8tq-70A4Mr


See below pvscan shows /dev/sdb1 has 4.97 and zero free.

# pvscan
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- ACTIVE   PV "/dev/sda1"         of VG "vg_ora" [1023.94 GB /
32 MB free]
pvscan -- ACTIVE   PV "/dev/sdb1"         of VG "vg_dba" [4.97 GB / 0
free]
pvscan -- ACTIVE   PV "/dev/cciss/c0d0p2" of VG "vg_os"  [67.73 GB /
29.73 GB free]
pvscan -- total: 3 [1.07 TB] / in use: 3 [1.07 TB] / in no VG: 0 [0]


See below the lvmdiskscan command shows that 5GB has been allocated to
/dev/sdb1.


# lvmdiskscan
lvmdiskscan -- reading all disks / partitions (this may take a
while...)
lvmdiskscan -- /dev/sda1         [    1023.99 GB] USED LVM whole disk
lvmdiskscan -- /dev/sdb1         [          5 GB] USED LVM whole disk
lvmdiskscan -- /dev/cciss/c0d0p1 [      99.59 MB] free whole disk
lvmdiskscan -- 3 disks
lvmdiskscan -- 3 whole disks
lvmdiskscan -- 0 loop devices
lvmdiskscan -- 0 multiple devices
lvmdiskscan -- 0 network block devices
lvmdiskscan -- 4 partitions
lvmdiskscan -- 0 LVM physical volume partitions



--
Taroon-list mailing list
[email protected]
https://www.redhat.com/mailman/listinfo/taroon-list