Vertica Support for LVM

Vertica 9.2.x supports Linux Volume Manager (LVM) on all supported operating systems.

LVM Version Supported

Vertica supports LVM version 2.02.66 or later, and must include device-mapper version 1.02.48 or later.

LVM Configuration Notes

In configuring LVM:

  • When you create logical volumes with the lvcreate command, use the readahead option to set the read ahead sector count to greater than 2048 KB.
  • You can use the default settings for all other LVM options.

LVM Restrictions

The following limitations apply to LVM support:

  • You cannot have physical drives shared across several nodes.
  • Vertica supports linear logical volumes only. Vertica does not support striped or mirrored logical volumes.
  • Vertica supports extending logical volumes (lvextend), but not reducing the size of a logical volume.
  • Vertica recommends frequent backups.
  • Vertica does not support LVM backup and restore, such as LVM snapshot and merge. Use the Vertica backup file vbr.py.
  • Vertica does not support LVM space reclamation because space reclamation is duplicated when reducing the size of a logical volume.
  • Vertica does not support LVM migration. Use Vertica Copy operations.
  • Vertica does not support LVM high availability. Use Vertica high availability capabilities.
  • Vertica does not support LVM RAID. Configure RAID at the disk controller level.