--- title: How to use LVM with shared storage | daily.dev description: LVM's shared volume groups (VG) feature enables multiple hosts to dynamically split and manage SAN storage without copying data over the network. The setup... canonical: https://daily.dev/posts/how-to-use-lvm-with-shared-storage-3w36b2ab2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to use LVM with shared storage | daily.dev og:description: LVM's shared volume groups (VG) feature enables multiple hosts to dynamically split and manage SAN storage without copying data over the network. The setup... og:url: https://daily.dev/posts/how-to-use-lvm-with-shared-storage-3w36b2ab2 og:image: https://api.daily.dev/og/posts/3w36b2aB2.png og:image:alt: How to use LVM with shared storage og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to use LVM with shared storage **[Red Hat Developer](https://daily.dev/sources/rhdev)** · 11 min read · 0 upvotes · 0 comments ## Summary LVM's shared volume groups (VG) feature enables multiple hosts to dynamically split and manage SAN storage without copying data over the network. The setup relies on the lvmlockd daemon and sanlock lock manager, which coordinate access using only the shared LUNs — no network configuration needed. Locking uses either SCSI COMPARE AND WRITE or Disk Paxos, with leases renewed every 20 seconds. Host failures are handled via SCSI-3 persistent reservations (PR) or watchdog timers. The guide walks through full setup: configuring lvm.conf, starting wdmd/sanlock/lvmlockd services, identifying LUNs by WWN, creating a shared VG with vgcreate --shared, starting locking on each host, and creating/activating LVs across hosts with exclusive lock enforcement. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How to get raw device mapping with OpenShift Virtualization](https://daily.dev/posts/how-to-get-raw-device-mapping-with-openshift-virtualization-lpcay9hb2) · Red Hat Developer · 0 upvotes · 0 comments - [I ignored storage discipline in Proxmox until a restore actually mattered](https://daily.dev/posts/i-ignored-storage-discipline-in-proxmox-until-a-restore-actually-mattered-dq3dkvisc) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#linux](https://daily.dev/tags/linux) [View this post on daily.dev](https://daily.dev/posts/how-to-use-lvm-with-shared-storage-3w36b2ab2) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to use LVM with shared storage","url":"https://daily.dev/posts/how-to-use-lvm-with-shared-storage-3w36b2ab2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-use-lvm-with-shared-storage-3w36b2ab2"},"datePublished":"2026-07-27T03:12:41.496Z","dateModified":"2026-07-27T03:13:03.013Z","description":"LVM's shared volume groups (VG) feature enables multiple hosts to dynamically split and manage SAN storage without copying data over the network. 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