topic Re: LVM & RAID in Operating System - HP-UX

LVM & RAID

P Arumugavel — Tue, 16 Feb 2010 09:37:49 GMT

Hi...

Please let me clear about LVM and RAID(HW/SW) concept.

Re: LVM & RAID

Jeeshan — Tue, 16 Feb 2010 09:58:10 GMT

LVM - Logical volume management is a software to configure disks as per requirements.

RAID- Redundant array of independent disks.

You will get some useful docs in www.docs.hp.com

Re: LVM & RAID

Jupinder Bedi — Tue, 16 Feb 2010 10:13:36 GMT

RAID and LVM are to concepts of storing data. Difference in these two is the way the data is stored. LVM can be implemented on LVM type of partitions so that we can have features of RAID...RAID is basically used for redundency ( base concept ) which can be achieved by RAID 1 and RAID 5 ( and some higher levels )..LVM on the other hand provides more disk space at any point ( i.e you can increase the FS space by adding more disks at run time )...

Re: LVM & RAID

Viktor Balogh — Wed, 17 Feb 2010 10:31:15 GMT

Hi Vel-UX,

here is a very good reading material about raid levels, look for page 9:

http://images01.insight.com/media/pdf/Storage_Data_IS_81108.pdf

here are some docs about LVM:

http://docs.hp.com/en/oshpux11iv3.html#LVM%20Volume%20Manager