LINSTOR driver¶

The LINSTOR driver allows Cinder to use DRBD/LINSTOR instances.

Configuration¶

Set the following option in the cinder.conf file for the DRBD transport:

volume_driver = cinder.volume.drivers.linstordrv.LinstorDrbdDriver

Or use the following for iSCSI transport:

volume_driver = cinder.volume.drivers.linstordrv.LinstorIscsiDriver

The following table contains the configuration options supported by the LINSTOR driver:

Description of LINSTOR configuration options¶
Configuration option = Default value	Description
`linstor_autoplace_count` = `0`	(Integer) Autoplace replication count on volume deployment. 0 = Full cluster replication without autoplace, 1 = Single node deployment without replication, 2 or greater = Replicated deployment with autoplace.
`linstor_controller_diskless` = `True`	(Boolean) True means Cinder node is a diskless LINSTOR node.
`linstor_default_blocksize` = `4096`	(Integer) Default Block size for Image restoration. When using iSCSI transport, this option specifies the block size.
`linstor_default_storage_pool_name` = `DfltStorPool`	(String) Default Storage Pool name for LINSTOR.
`linstor_default_uri` = `linstor://localhost`	(String) Default storage URI for LINSTOR.
`linstor_default_volume_group_name` = `drbd-vg`	(String) Default Volume Group name for LINSTOR. Not Cinder Volume.
`linstor_volume_downsize_factor` = `4096`	(Float) Default volume downscale size in KiB = 4 MiB.