lvm

RHCE/RHCSA Exam Notes: LVM

Share

http://rhel6notes.blogspot.in/search/label/LVM

1

More

Ne N ext Blog»

Create Blog

Sign In

RHCE/RHCSA Exam Notes This is my personal notes on RHCSA/RHCE RHCSA/RHCE exam. Site still work in progress. For comments and suggestions email me at mctofferatgmaildotcom mctofferatgmaildotcom

There was an error in this gadget

Showing posts with label LVM. LVM. Show all posts

About ME

Sunday, May 1, 2011

The main purpose of this site is to dump all my notes on Redhat certification RHCSA/RHEL. If you have comments and suggestions, please do email me on mctofferatgmaildotcom

LVM commands

Labels

To add a disk #pvcreate /dev/

LVM commands: Show lvm #pvs #vgs #lvs #pvdisplay #vgdisplay #lvdisplay

. (1) /info/Quick_Notes (4) /info/RHCE_Exam_Obje ctives (2)

to create a Volume group #vgcreate /dev/ to create a Logical Volume #lvcreate -L <###>

accounts (2) apache (2) Archive and Compression (1) bind (1) filesystem (7) grub (1) iptables (3) Journal (5)

To extend #lvextend -L +### /dev/vg_name/lv_name #resize2fs /dev/vg_name/lv_name /dev/vg_name/lv_name To reduce unmount the filesystems first # e2fsck -f /dev/vg_name/lvname /dev/vg_name/lvname # resize2fs /dev/vg_name/lv_name /dev/vg_name/lv_name 100m # lvreduce -L -100 /dev/vg_name/lv_name Moving data # pvcreate /dev/sdc # vgextend vg_group01 /dev/sdc # lvcreate -L 100 -n lvol01 vg_group01 # pvmove /dev/sdb /dev/sdc

kickstart (1) KVM (1) Lab station (1) luks (1)

Removing #dmsetup info -c /dev/vg_group01/lv_group01 /dev/vg_group01/lv_group01 #dmsetup remove /dev/vg_group01/lv_group01 /dev/vg_group01/lv_group01 #vgremove -f /dev/vg_group01 /dev/vg_group01 #pvremove /dev/sdb

LVM (2) Posted by penoi at 8: 8:20 20 PM

mail servers (1) nfs (1) ntp (1) parted (2)

No co comm mmen ents ts::

Recommend this on Google

Labels: LV LVM M



ports (1) RAID (1) remote access (1) RHCSA/RHEL Books and Sites (1) rpm (2) runlevels (1) security (4) selinux (1) ssh (1) swap (1)

Saturday, February 26, 2011

system messages (1)

Playing with Logical Volume Manager

YUM (2)

Initialize disk using pvcreate

[root@rhel01 ~]# pvcreate /dev/sda1 Physical volume “/dev/sda1 ″ successfully created

Summer Training in Linux www.linuxworldindia.org RedHat Best Awarded Partner Get Explore Project Mob:9351788883

Create volume group lab_group1

[root@rhel01 ~]# vgcreate lab_group1 /dev/sda1 Volume group “lab_group1 ″ successfully created

Ready To Play? Quikr.com/treasure_hunt Play for Free & Win Recharge worth Rs.1 Lakh Everday. Play Now.

Hardware Engg in 75 days www.aptechnpower.com For Hardware & Networking courses Join Aptech Networking today

In this sample i created 10MB of logical volume mount to /mnt [root@rhel01 ~]# lvcreate -L 10M lab_group1 -n lab01 Rounding up size to full physical extent 12.00 MiB Logical volume “lab01 ″ created [root@rhel01 ~]# mkfs.ext4 /dev/lab_group1/lab01 mke2fs 1.41.12 (17-May-2010) [root@rhel01 ~]# mount /dev/lab_group1/lab01 /mnt [root@rhel01 ~]# df -h /mnt Filesystem

Size

300 lakh IT jobs*

/dev/mapper/lab_group1-lab01

www.Aptech-Education … Get a global career through Aptech Work in the IT field of your choice

12M

Learn Cloud Computing www.innobuzz.in Latest Training Program on Cloud Computing via Distance Learning

Followers

1.2M

10M

Used Avail Use% Mounted on

11% /mnt

Extending Logical Volume using new disk Initialize new disk

[root@rhel01 ~]# pvcreate /dev/sdb1 Wiping software RAID md superblock on /dev/sdb1 Physical volume “/dev/sdb1 ″ successfully created

Extend lab_group1 volume group [root@rhel01 ~]# vgextend lab_group1 /dev/sdb1 Volume group “lab_group1 ″ successfully extended [root@rhel01 ~]# vgdisplay lab_group1 — Volume group — VG Name lab_group1 System ID Format lvm2 Metadata Areas 2 Metadata Sequence No 3 VG Access read/write


Join this site with Google Friend Connect

Members (3)

Already a member? Sign in

RHEL Sites TechExams.net IT Certification Forums ICND1 / ICND2 exam, or take 640-802? 58 minutes ago

RHEV Blog Installare RPMFORGE REPO e LSHW su RHEL e CentOS 2 weeks ago

Linux Superuser Configure YUM server to install/update packages on remote server 5 weeks ago

Best Unix, Linux Resourses, Tips, Tutorial, Articles and HowTos Does My SPARC Client Support WAN Boot?


VG Status MAX LV Cur LV Open LV Max PV Cur PV Act PV VG Size PE Size Total PE Alloc PE / Size Free PE / Size VG UUID mlu9-o867qV

resizable 0 1 0 0 2 2 56.00 MiB 4.00 MiB 14 3 / 12.00 MiB 11 / 44.00 MiB o8kB09-P20F-QLFx-U mPE-5BB5-

Extend logical volume lab01 [root@rhel01 ~]# lvextend -L +10M /dev/lab_group1/lab01 Rounding up size to full physical extent 12.00 MiB Extending logical volume lab01 to 24.00 MiB Logical volume lab01 successfully resized [root@rhel01 ~]# df -h /mnt Filesystem Size Used Avail Use% Mounted on /dev/mapper/lab_group1-lab01 12M 1.2M 10M 11% /mnt [root@rhel01 ~]# resize2fs /dev/lab_group1/lab01 resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/lab_group1/lab01 is mounted on /mnt; on-line resizing required old desc_blocks = 1, new_desc_blocks = 1 Performing an on-line resize of /dev/lab_group1/lab01 to 24576 (1k) blocks. The filesystem on /dev/lab_group1/lab01 is now 24576 blocks long. [root@rhel01 ~]# df -h /mnt Filesystem Size Used Avail Use% Mounted on /dev/mapper/lab_group1-lab01 24M 1.2M 22M 5% /mnt

Posted by penoi at 12:06 AM

No comments:

Recommend this on Google

Labels: LVM

Home

3 months ago

system admin's kodigo

Subscribe to: Posts (Atom)

RHCSA - Archive, compress, unpack and uncompress files using tar, star, gzip, and bzip2 1 year ago

Awesome Inc. template. Template images by Jason Morrow. Powered by Blogger .

Older Posts

lvm

Recommend Documents