lvm2

Disk-Space Management - Why is it so hard?

• In a computer, there were small disks.
• Then they grew...
• ...and multiplied...
• ...and divided...
• ...and had to be backed up...
• ...and the data loss came, and was great...
• ...and the tape was unreadable and silent.
• Someone said "virtual" to a Unix kernel hacker
• and the hacker said "let all disks be virtual, and thus managed by software instead of hardware"....
• ..."this way we can grow them and divide them and multiply them without direct relation to hardware".
• "and we can also name names, and find them more easily"
• Then someone else said "If they are virtual, we could also make virtual copies, thus making data restore life easier".
• Thus LVM was conceived.
• cite haifux.org