11-14-2002
understanding logical partition, physical partition
hi,
1) is logical partition the same as physical partition except that one is physical and the other is logical?
2) then it must a one to one ratio?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Everyone,
Can someone tell me the effect of the pp size of the volume group created for Oracle data.
It would seem that creating small pp's will cause more overhead. What if you make the pp to large? What should I base this size on?
Thanks, (4 Replies)
Discussion started by: kburrows
4 Replies
2. AIX
hello
I have a volume group of 737 Go (EMC)
To add 250 Go, i split the 250 Go to 2*125
No problem to add in the volum group, but when i want to increase the size of the logical volume, i have the message :
0516-787 extendlv: Maximum allocation for logical volume simdatabaselv
is... (3 Replies)
Discussion started by: pascalbout
3 Replies
3. UNIX for Dummies Questions & Answers
Dear Members,
I am using SCO-Unix 5.0.5. I have created 2 logical drives but some of the blocks are overlapped and are now giving warning during startup. I have used fsck to settle the problems but to no avail. Kindly help me to sort out the problem.
Thanks (3 Replies)
Discussion started by: nagendrajaiswal
3 Replies
4. UNIX for Dummies Questions & Answers
I've created a partition with GNU Parted, how do I mount the partition?
The manual information at http://www.gnu.org/software/parted/manual/parted.html is good, but I am sure about how I mount the partition afterwards.
Thanks,
--Todd (1 Reply)
Discussion started by: jtp51
1 Replies
5. AIX
I would like to know how to identify which file a logical partition relates too.
Operating System = AIX
oslevel -s = 5300-04-CSP
I've identified a logical volume that continually runs at 100% tm_acct from iostat.
I've run lvmstat -l and identified the logical partition 590, being the... (1 Reply)
Discussion started by: garry
1 Replies
6. Solaris
Hi All,
I have managed to install and configure a Solaris x86 server, the problem I have now is that whilst setting it up, I left a 30GB logical partition for the Oracle database server that I will later have on the system, the problem now is that I have not formatted the drive during... (18 Replies)
Discussion started by: platforminc
18 Replies
7. AIX
Hi all,
I am trying to replace an old 9gb hard disk for a 36gb hard drive on an AIX 4.3.2 system (can't update)
I was thinking of doing this by doing a dd from the 9gb to the 36gb hard drive and then resize the Logical Volumes. However, lspv <36gb hard disk> gives me the folowing:
#lrnt>... (4 Replies)
Discussion started by: eRJe
4 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I am new to unix. I am working on Red Hat Linux and side by side on AIX also. After reading the concepts of Storage, I am now really confused regarding the terminologies
1)Physical Volume
2)Volume Group
3)Logical Volume
4)Physical Partition
Please help me to understand these concepts. (6 Replies)
Discussion started by: kashifsd17
6 Replies
9. Solaris
hi all
while formatting hard disk i am getting following error.
Partition 1 ends at 266338338
It must be between 34 and 143374704.
label error: EFI Labels do not support overlapping partitions
Partition 8 overlaps partition 1.
Warning: error writing EFI.
Label failed.
I have formatted the... (2 Replies)
Discussion started by: nikhil kasar
2 Replies
10. Red Hat
Hello All,
I have a Red Hat Linux 5.9 Server installed with one hard disk & 2 Partitions created on it as follows,
/boot - Linux Partition & another is
LVM - One VG & under that 5-6 Logical volumes(var,opt,home etc).
Here my requirement is to take out 1GB of space from LVM ( Any logical... (5 Replies)
Discussion started by: gr8_usk
5 Replies
LEARN ABOUT REDHAT
pvcreate
PVCREATE(8) System Manager's Manual PVCREATE(8)
NAME
pvcreate - initialize a disk or partition for use by LVM
SYNOPSIS
pvcreate [-d|--debug] [-f[f]|--force [--force]] [-y|--yes] [-h|--help] [-v|--verbose] [-V|--version] PhysicalVolume [PhysicalVolume...]
DESCRIPTION
pvcreate initializes PhysicalVolume for later use by the Logical Volume Manager (LVM). Each PhysicalVolume can be a disk partition, whole
disk, meta device, or loopback file. For DOS disk partitions, the partition id must be set to 0x8e using fdisk(8), cfdisk(8), or a equiva-
lent. For whole disk devices only the partition table must be erased, which will effectively destroy all data on that disk. This can be
done by zeroing the first sector with:
dd if=/dev/zero of=PhysicalVolume bs=512 count=1
Continue with vgcreate(8) to create a new volume group on PhysicalVolume, or vgextend(8) to add PhysicalVolume to an existing volume group.
OPTIONS
-d, --debug
Enables additional debugging output (if compiled with DEBUG).
-f, --force
Force the creation without any confirmation. You can not recreate (reinitialize) a physical volume belonging to an existing volume
group. In an emergency you can override this behaviour with -ff. In no case case can you initialize an active physical volume with
this command.
-s, --size
Overrides the size of the physical volume which is normally retrieved. Useful in rare case where this value is wrong. More useful
to fake large physical volumes of up to 2 Terabyes - 1 Kilobyte on smaller devices for testing purposes only where no real access to
data in created logical volumes is needed. If you wish to create the supported maximum, use "pvcreate -s 2147483647k PhysicalVolume
[PhysicalVolume ...]". All other LVM tools will use this size with the exception of lvmdiskscan(8)
-y, --yes
Answer yes to all questions.
-h, --help
Print a usage message on standard output and exit successfully.
-v, --verbose
Gives verbose runtime information about pvcreate's activities.
-V, --version
Print the version number on standard output and exit successfully.
Example
Initialize partition #4 on the third SCSI disk and the entire fifth SCSI disk for later use by LVM:
pvcreate /dev/sdc4 /dev/sde
DIAGNOSTICS
pvcreate returns an exit code of 0 for success or > 0 for error:
1 no physical volume on command line
2 error removing existing lvmtab entry for new physical volume
3 error setting up physical volume structure
4 error writing physical volume structure to disk
5 wrong partition type identifier
6 error physical volume name
7 error getting size of physical volume
95 driver/module not in kernel
96 invalid I/O protocol version
97 error locking logical volume manager
98 invalid lvmtab (run vgscan(8))
99 invalid command line
SEE ALSO
lvm(8), vgcreate(8), vgextend(8), lvcreate(8), cfdisk(8), fdisk(8), losetup(8), mdadd(8)
AUTHOR
Heinz Mauelshagen <Linux-LVM@Sistina.com>
Heinz Mauelshagen LVM TOOLS PVCREATE(8)