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Full Discussion: Create volume using LVM over 2 physical disks
Operating Systems Linux Red Hat Create volume using LVM over 2 physical disks Post 302728225 by Scott on Wednesday 7th of November 2012 01:24:57 PM
Old 11-07-2012
It looks like you already created the physical volumes. What does pvs display?

It's not totally clear what you are asking, but if I understand, you want to "combine" the disks /dev/sdb and /dev/sdc. You can do this in as much as adding them to the same volume group.

Code:
# vgcreate myvg01 /dev/sdb /dev/sdc

You can then create three logical volumes, one each for /u01, /u02 and /u03

i.e.
Code:
[root@RH631d ~]# lvcreate -L10G -n mylv01 myvg01
  Logical volume "mylv01" created

Then you can create the filesystem using the LV's.

(far from optimal, but quick for me to show...)
[code]
Code:
[root@RH631d ~]# mkfs -t ext3 /dev/mapper/myvg01-mylv01
mke2fs 1.39 (29-May-2006)
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
1310720 inodes, 2621440 blocks
131072 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=2684354560
80 block groups
32768 blocks per group, 32768 fragments per group
16384 inodes per group
Superblock backups stored on blocks: 
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 38 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.
[root@RH631d ~]# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda2              3960348   2536864    196924  93% /
/dev/sda5             14301224    167312  13395728   2% /home
/dev/sda1                46633     11178     33047  26% /boot
tmpfs                   512360         0    512360   0% /dev/shm
.host:/              829127300 740882960  88244340  90% /mnt/hgfs
[root@RH631d ~]# mkdir /u01
[root@RH631d ~]# mount /dev/mapper/myvg01-mylv01 /u01
[root@RH631d ~]# df -hP
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             3.8G  2.5G  193M  93% /
/dev/sda5              14G  164M   13G   2% /home
/dev/sda1              46M   11M   33M  26% /boot
tmpfs                 501M     0  501M   0% /dev/shm
.host:/               791G  707G   85G  90% /mnt/hgfs
/dev/mapper/myvg01-mylv01  9.9G  151M  9.2G   2% /u01

 

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LEARN ABOUT X11R4

mkfs.minix

MKFS.MINIX(8)						       System Administration						     MKFS.MINIX(8)

NAME

       mkfs.minix - make a Minix filesystem

SYNOPSIS

       mkfs.minix [options] device [size-in-blocks]

DESCRIPTION

       mkfs.minix creates a Linux MINIX filesystem on a device (usually a disk partition).

       The device is usually of the following form:

	      /dev/hda[1-8] (IDE disk 1)
	      /dev/hdb[1-8] (IDE disk 2)
	      /dev/sda[1-8] (SCSI disk 1)
	      /dev/sdb[1-8] (SCSI disk 2)

       The device may be a block device or a image file of one, but this is not enforced.  Expect not much fun on a character device :-).

       The  size-in-blocks parameter is the desired size of the file system, in blocks.  It is present only for backwards compatibility.  If omit-
       ted the size will be determined automatically.  Only block counts strictly greater than 10 and strictly less than 65536 are allowed.

OPTIONS

       -c, --check
	      Check the device for bad blocks before creating the filesystem.  If any are found, the count is printed.

       -n, --namelength length
	      Specify the maximum length of filenames.	Currently, the only allowable values are 14 and 30 for file system versions 1 and 2.  Ver-
	      sion 3 allows only value 60.  The default is 30.

       -i, --inodes number
	      Specify the number of inodes for the filesystem.

       -l, --badblocks filename
	      Read the list of bad blocks from filename.  The file has one bad-block number per line.  The count of bad blocks read is printed.

       -1     Make a Minix version 1 filesystem.  This is the default.

       -2, -v Make a Minix version 2 filesystem.

       -3     Make a Minix version 3 filesystem.

       -V, --version
	      Display version information and exit.  The long option cannot be combined with other options.

       -h, --help
	      Display help text and exit.

EXIT CODES

       The exit code returned by mkfs.minix is one of the following:

       0      No errors

       8      Operational error

       16     Usage or syntax error

SEE ALSO

       fsck(8), mkfs(8), reboot(8)

AVAILABILITY

       The mkfs.minix command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2015							     MKFS.MINIX(8)
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