disk space shortage, how to migrate to LVM? Post: 302303498

Sponsored Content

Operating Systems AIX disk space shortage, how to migrate to LVM? Post 302303498 by zxmaus on Thursday 2nd of April 2009 06:43:25 PM

04-02-2009

Moderator

Zaxxon,

you can have other volume managers on AIX too - I have plenty of systems running Veritas Volume Manager and Veritas filesystems - and other servers out of any volume manager using ASM ...

Michal,

first of all you should determine if all filesystems you want to extend are in rootvg
# lsvg -l rootvg # shows you your filesystem
# lsvg rootvg # shows you how much space is used/free/available at all
# chfs -a size=+xG # extends your filesystem by x GB
# chfs -a size=-xG # reduces your filesystem by x GB (given using jfs2)
# extendvg rootvg hdiskx # adds a further disk to your vg in case you do not have free space - but since your filesystems appear all to be very tiny, I would not assume that you should have issues extending it anyway

no need for any reboot while working with lvm - and no need to copy anything anywhere ...

you can make more space in /usr by either committing applied packages or just doing nothing - you usually only need more space there while installing new software and with the -X flag during install the filesystem will be automatically extended anyway

you might want to have a look into this redbook since you seem to be very new on AIX anyway ?
http://www.redbooks.ibm.com/redbooks/pdfs/sg245433.pdf

kahoona,

why is it bad style to have mountpoints under existing mountpoints IN ROOTVG - especially when you have your homedirs in automounts its probably the best idea you can have - and when you're creating your submounts the properway /letting ODM know about - not manipulating /etc/filesystems manually - that will never be a problem when you have setup your system thoughtfully?

Kind regards
zxmaus

Last edited by zxmaus; 04-02-2009 at 08:07 PM.. Reason: added link

zxmaus

View Public Profile for zxmaus

Find all posts by zxmaus

8 More Discussions You Might Find Interesting

1. HP-UX

disk adding through lvm

Hi dear(s) Can u explain how to add a disk through lvm with commands. I need to add a 9 gb scsi HS disk to a Hp D class 9000 server.

2. Solaris

Migrate VxVM boot disks to higher capacity disk

Hi, Im getting a downtime of 4 hrs to do porting of bootdisks. Currently, the system is running on Sf4800. 2 internal disk 36G connected to a SE3510 storage. We're getting 72G disks and we want to restore the OS from the current 36G to the 72G disk. System is under veritas volume manager ctrl....

3. AIX

Disk I/O Issue using LVM

We have a filesystem which contains 8 hard disks but i am facing disk I/O issue becuase data is not spreading across all the disks.Is there any way i can check how data is spreading and any parameter we need to change to spread ata across all disks. OS--AIX 5.3

4. Red Hat

How to Migrate from Single Disk to Many? (RHEL 4.6)

I have a Red Hat Enterprise 4.6 virtual server built on 1 virtual disk running Oracle Applications on VMware ESX 3.5; the performance of the virtual server is not good because of IO bottlenecks. The ESX server is reporting minimal load, it's the virtual server which is struggling with disk IO...

5. AIX

AIX LVM migrate lp

Hi, I have questions about unix AIX's lvm. Is there some problem to do migrate lp into a mirrored vg or should i break the mirror before? Is necessary to run reorgvg after I migrate lp ? thanks

6. BSD

Migrate a Hard Disk

hi Has anyone already tried to migrate a hard disk with FreeBSD using recoverdisk?

7. HP-UX

LVM: is possible to replace a disk?

Scenario1: VG00 lvm,not mirrored,2 disk of 36GB vg size VG00 size is under 30G. Is possible to remove a disk of 36GB and replace "on fly" with a disk of 300GB on VG00? Thanks

8. Linux

How to migrate a running lvm.?

Hi all, Please explain how do i. Migrate and backup a running lvm..!! Thanks, Sent from my LG-D802 using Tapatalk

LEARN ABOUT LINUX

filesystem

filesystem(7)						 Miscellaneous Information Manual					     filesystem(7)

NAME

       filesystem - event signalling that filesystems have been mounted

SYNOPSIS

       filesystem [ENV]...

DESCRIPTION

       The  filesystem	event  is  generated by the mountall(8) daemon after it has mounted all filesystems listed in fstab(5).  mountall(8) emits
       this event as an informational signal, services and tasks started or stopped by this event will do so in parallel with other activity.

EXAMPLE

       A service that wishes to be running once filesystems are mounted might use:

	      start on filesystem

SEE ALSO

       mounting(7) mounted(7) virtual-filesystems(7) local-filesystems(7) remote-filesystems(7) all-swaps(7)

mountall							    2009-12-21							     filesystem(7)