Managing metadata for logical volume managers

摘要

A logical volume manager (LVM) may manage a plurality of logical volumes and a plurality of drives in a logical data storage using metadata stored on the plurality of drives. The LVM may operate in one of two modes. In the first mode, the LVM may deleted uncommitted metadata on a drive and may use committed metadata on the drive when accessing a logical volume. In a second mode, the LVM may use committed metadata on the drive when accessing the logical volume and may refrain from deleting the uncommitted metadata.

主权项

1. A method comprising:
receiving a first request to access a logical volume in a plurality of logical volumes; determining, by a logical volume manager executable by a processing device, when a committed metadata and an uncommitted metadata are in a drive used by the logical volume, wherein the logical volume manager is to manage the plurality of logical volumes and wherein the plurality of logical volumes use a plurality of drives; determining when to operate in a first mode or a second mode when the committed metadata and the uncommitted metadata are on the drive; removing the uncommitted metadata from the drive and accessing the logical volume using the committed metadata to when operating in the first mode; and accessing the logical volume using the committed metadata and refraining from removing the uncommitted metadata when operating in the second mode.