LVM & RAID

[P Arumugavel]

Hi...

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

[Jeeshan]

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

[Jupinder Bedi]

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 )...

[Viktor Balogh]

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