https://alteeve.com/w/api.php?action=feedcontributions&feedformat=atom&user=EpretoriousAlteeve Wiki - User contributions [en-gb]2026-05-30T15:36:28ZUser contributionsMediaWiki 1.42.3https://alteeve.com/w/index.php?title=LVM&diff=4395LVM2012-08-07T06:07:37Z<p>Epretorious: Minor, punction changes and one grammatical change.</p>
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'''LVM''' is an acronym for '''L'''ogical '''V'''olume '''M'''anagement.<br />
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It is a tool that aggregates one or more real or virtual disks and assigns them as Physical Volumes ([[#PV|PV]]s). From one or more PV's you can create a Volume Group ([[#VG|VG]]). The VG acts as a pool of raw space from which one or more Logical Volumes ([[#LV|LV]]'s) can be created. These LV's are, essentially, a traditional [[partition]] on top of which you can format with a [[filesystem]], assign to a [[RAID]] device and so on.<br />
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= PV =<br />
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'''P'''hysical '''V'''olume; This is a raw partition from a disk assigned to be used in an LVM.<br />
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= VG =<br />
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'''V'''olume '''G'''roup; This is a pool of one or more PV's. From this pool of raw space, LV's are created.<br />
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= LV =<br />
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'''L'''ogical '''V'''olume; This is similar to a traditional, raw partition. You can format an LV with a [[filesystem]], add it to a RAID or [[DRBD]] array and so on.<br />
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= CLVM =<br />
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When LVM is used in a cluster, it is referred to as [[CLVM|'''C'''lustered LVM]]. This indicates that it has been made "cluster aware" and now relies on the cluster's [[DLM]] for safe operation. CLVM relies on the <span class="code">clvmd</span> daemon to operate.<br />
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{{footer}}</div>Epretorious