Chapter 2. What's New in this Release?

This chapter describes the key features and enhancements in the Red Hat Gluster Storage 3.1 Update 1 release.
  • gdeploy
    Gdeploy is a tool which automates the process of creating, formatting, and mounting bricks. When setting-up a fresh cluster, gdeploy could be the preferred choice of cluster set up, as manually executing numerous commands can be error prone. The advantages of using gdeploy to automate brick creation are as follows:
    • Setting-up the backend on several machines can be done from one's laptop/desktop. This saves time and scales up well when the number of nodes in the cluster increase.
    • Flexibility in choosing the drives to configure.
    • Flexibility in naming the logical volumes (LV) and volume groups (VG).
    For more information, see section Setting up Gluster Volumes using gdeploy in the Red Hat Gluster Storage Administration Guide.
  • gstatus
    The gstatus command is now fully supported. The command provides an easy-to-use, high-level view of the health of a trusted storage pool with a single command. It gathers information about the health of a Red Hat Gluster Storage trusted storage pool for distributed, replicated, distributed-replicated, dispersed, and distributed-dispersed volumes.
    For more information, see section gstatus Command in the Red Hat Gluster Storage Administration Guide.
  • BitRot Enhancement
    You can now recover a bad file detected by BitRot from a replicated volume. The information about the bad file is logged in the scrubber log file located at /var/log/glusterfs/scrub.log.
    For more information, see section Recovering a Bad File from a Replicated Volume in the Red Hat Gluster Storage Administration Guide.
  • Performance Tuning Enhancement for Red Hat Enterprise Linux 6
    Two tailored tuned profiles is introduced to improve the performance for specific Red Hat Gluster Storage workloads.
    • rhgs-sequential-io: Improves performance of large files with sequential I/O workloads
    • rhgs-random-io: Improves performance of small file workloads and random I/O workloads.
    For more information, see chapter Configuring Red Hat Gluster Storage for Enhancing Performance in the Red Hat Gluster Storage Administration Guide.