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Show Table of Contents
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  1. Administration Guide
  2. I. Preface
    1. 1. Preface
      1. 1.1. About Red Hat Gluster Storage
      2. 1.2. About glusterFS
      3. 1.3. About On-premises Installation
  3. II. Overview
    1. 2. Architecture and Concepts
      1. 2.1. Architecture
      2. 2.2. On-premises Architecture
      3. 2.3. Storage Concepts
  4. III. Configure and Verify
    1. 3. Considerations for Red Hat Gluster Storage
      1. 3.1. Firewall and Port Access
        1. 3.1.1. Configuring the Firewall
        2. 3.1.2. Port Access Requirements
      2. 3.2. Feature Compatibility Support
    2. 4. Adding Servers to the Trusted Storage Pool
      1. 4.1. Adding Servers to the Trusted Storage Pool
      2. 4.2. Removing Servers from the Trusted Storage Pool
    3. 5. Setting Up Storage Volumes
      1. 5.1. Setting up Gluster Storage Volumes using gdeploy
        1. 5.1.1. Getting Started
        2. 5.1.2. Setting up a Trusted Storage Pool
        3. 5.1.3. Setting up the Backend
        4. 5.1.4. Creating Volumes
        5. 5.1.5. Mounting Clients
        6. 5.1.6. Configuring a Volume
        7. 5.1.7. Configuration File
        8. 5.1.8. Deploying NFS Ganesha using gdeploy
        9. 5.1.9. Deploying Samba / CTDB using gdeploy
        10. 5.1.10. Enabling SSL on a Volume
        11. 5.1.11. Gdeploy log files
      2. 5.2. About Encrypted Disk
      3. 5.3. Formatting and Mounting Bricks
        1. 5.3.1. Creating Bricks Manually
        2. 5.3.2. Using Subdirectory as the Brick for Volume
        3. 5.3.3. Reusing a Brick from a Deleted Volume
        4. 5.3.4. Cleaning An Unusable Brick
      4. 5.4. Creating Distributed Volumes
      5. 5.5. Creating Replicated Volumes
        1. 5.5.1. Creating Three-way Replicated Volumes
        2. 5.5.2. Creating Sharded Replicated Volumes
      6. 5.6. Creating Distributed Replicated Volumes
        1. 5.6.1. Creating Three-way Distributed Replicated Volumes
      7. 5.7. Creating Arbitrated Replicated Volumes
        1. 5.7.1. Arbitrated volume requirements
        2. 5.7.2. Arbitration logic
        3. 5.7.3. Creating an arbitrated replicated volume
        4. 5.7.4. Creating multiple arbitrated replicated volumes across fewer total nodes
        5. 5.7.5. Converting to an arbitrated volume
        6. 5.7.6. Converting an arbitrated volume to a three-way replicated volume
        7. 5.7.7. Tuning recommendations for arbitrated volumes
      8. 5.8. Creating Dispersed Volumes
      9. 5.9. Creating Distributed Dispersed Volumes
      10. 5.10. Starting Volumes
    4. 6. Creating Access to Volumes
      1. 6.1. Client Support Information
        1. 6.1.1. Cross Protocol Data Access
        2. 6.1.2. Client Operating System Protocol Support
        3. 6.1.3. Transport Protocol Support
      2. 6.2. Native Client
        1. 6.2.1. Installing Native Client
        2. 6.2.2. Upgrading Native Client
        3. 6.2.3. Mounting Red Hat Gluster Storage Volumes
      3. 6.3. NFS
        1. 6.3.1. Support Matrix
        2. 6.3.2. Gluster NFS (Deprecated)
        3. 6.3.3. NFS Ganesha
      4. 6.4. SMB
        1. 6.4.1. Requirements for using SMB with Red Hat Gluster Storage
        2. 6.4.2. Setting up CTDB for Samba
        3. 6.4.3. Sharing Volumes over SMB
        4. 6.4.4. Configuring User Access to Shared Volumes
        5. 6.4.5. Mounting Volumes using SMB
        6. 6.4.6. Starting and Verifying your Configuration
        7. 6.4.7. Disabling SMB Shares
        8. 6.4.8. Accessing Snapshots in Windows
        9. 6.4.9. Tuning Performance
      5. 6.5. POSIX Access Control Lists
        1. 6.5.1. Setting ACLs with setfacl
        2. 6.5.2. Checking current ACLs with getfacl
        3. 6.5.3. Mounting volumes with ACLs enabled
        4. 6.5.4. Checking ACL enablement on a mounted volume
      6. 6.6. Checking Client Operating Versions
    5. 7. Integrating Red Hat Gluster Storage with Windows Active Directory
      1. 7.1. Prerequisites
      2. 7.2. Integration
        1. 7.2.1. Configure Authentication
        2. 7.2.2. Join Active Directory Domain
        3. 7.2.3. Verify/Test Active Directory and Services
  5. IV. Manage
    1. 8. Managing Snapshots
      1. 8.1. Prerequisites
      2. 8.2. Creating Snapshots
      3. 8.3. Cloning a Snapshot
      4. 8.4. Listing of Available Snapshots
      5. 8.5. Getting Information of all the Available Snapshots
      6. 8.6. Getting the Status of Available Snapshots
      7. 8.7. Configuring Snapshot Behavior
      8. 8.8. Activating and Deactivating a Snapshot
      9. 8.9. Deleting Snapshot
        1. 8.9.1. Deleting Multiple Snapshots
      10. 8.10. Restoring Snapshot
      11. 8.11. Accessing Snapshots
      12. 8.12. Scheduling of Snapshots
        1. 8.12.1. Prerequisites
        2. 8.12.2. Snapshot Scheduler Options
      13. 8.13. User Serviceable Snapshots
        1. 8.13.1. Enabling and Disabling User Serviceable Snapshot
        2. 8.13.2. Viewing and Retrieving Snapshots using NFS / FUSE
        3. 8.13.3. Viewing and Retrieving Snapshots using CIFS for Windows Client
      14. 8.14. Troubleshooting Snapshots
    2. 9. Managing Directory Quotas
      1. 9.1. Enabling and Disabling Quotas
      2. 9.2. Before Setting a Quota on a Directory
      3. 9.3. Limiting Disk Usage
        1. 9.3.1. Setting Disk Usage Limits
        2. 9.3.2. Viewing Current Disk Usage Limits
        3. 9.3.3. Setting Quota Check Frequency (Timeouts)
        4. 9.3.4. Setting Logging Frequency (Alert Time)
        5. 9.3.5. Removing Disk Usage Limits
    3. 10. Managing Geo-replication
      1. 10.1. About Geo-replication
      2. 10.2. Replicated Volumes vs Geo-replication
      3. 10.3. Preparing to Deploy Geo-replication
        1. 10.3.1. Exploring Geo-replication Deployment Scenarios
        2. 10.3.2. Geo-replication Deployment Overview
        3. 10.3.3. Prerequisites
        4. 10.3.4. Setting Up your Environment
        5. 10.3.5. Configuring a Meta-Volume
        6. 10.3.6. Setting up relevant SELinux booleans to on state
      4. 10.4. Starting Geo-replication
        1. 10.4.1. Starting a Geo-replication Session
        2. 10.4.2. Verifying a Successful Geo-replication Deployment
        3. 10.4.3. Displaying Geo-replication Status Information
        4. 10.4.4. Configuring a Geo-replication Session
        5. 10.4.5. Stopping a Geo-replication Session
        6. 10.4.6. Deleting a Geo-replication Session
      5. 10.5. Setting up Geo-replication using gdeploy
        1. 10.5.1. Setting up geo-replication as root user using gdeploy
        2. 10.5.2. Setting up a secure geo-replication session using gdeploy
        3. 10.5.3. Controlling geo-replication sessions using gdeploy
      6. 10.6. Starting Geo-replication on a Newly Added Brick, Node, or Volume
        1. 10.6.1. Starting Geo-replication for a New Brick or New Node
        2. 10.6.2. Starting Geo-replication for a New Brick on an Existing Node
        3. 10.6.3. Starting Geo-replication for a New Volume
      7. 10.7. Scheduling Geo-replication as a Cron Job
      8. 10.8. Disaster Recovery
        1. 10.8.1. Failover: Promoting a Slave to Master
        2. 10.8.2. Failback: Resuming Master and Slave back to their Original State
      9. 10.9. Creating a Snapshot of Geo-replicated Volume
      10. 10.10. Example - Setting up Cascading Geo-replication
      11. 10.11. Recommended Practices
      12. 10.12. Troubleshooting Geo-replication
        1. 10.12.1. Tuning Geo-replication performance with Change Log
        2. 10.12.2. Triggering Explicit Sync on Entries
        3. 10.12.3. Synchronization Is Not Complete
        4. 10.12.4. Issues with File Synchronization
        5. 10.12.5. Geo-replication Status is Often Faulty
        6. 10.12.6. Intermediate Master is in a Faulty State
        7. 10.12.7. Remote gsyncd Not Found
    4. 11. Managing Red Hat Gluster Storage Volumes
      1. 11.1. Configuring Volume Options
      2. 11.2. Setting Multiple Volume Option
      3. 11.3. Supported Volume Options
      4. 11.4. Configuring a volume to be mounted read-only
      5. 11.5. Configuring Transport Types for a Volume
      6. 11.6. Reserving Storage on a Volume
      7. 11.7. Expanding Volumes
        1. 11.7.1. Expanding a Tiered Volume
        2. 11.7.2. Expanding a Dispersed or Distributed-dispersed Volume
        3. 11.7.3. Expanding Underlying Logical Volume
      8. 11.8. Shrinking Volumes
        1. 11.8.1. Shrinking a Geo-replicated Volume
        2. 11.8.2. Shrinking a Tiered Volume
        3. 11.8.3. Stopping a remove-brick Operation
      9. 11.9. Migrating Volumes
        1. 11.9.1. Replacing a Subvolume on a Distribute or Distribute-replicate Volume
        2. 11.9.2. Replacing an Old Brick with a New Brick on a Replicate or Distribute-replicate Volume
        3. 11.9.3. Replacing an Old Brick with a New Brick on a Distribute Volume
        4. 11.9.4. Replacing an Old Brick with a New Brick on a Dispersed or Distributed-dispersed Volume
        5. 11.9.5. Reconfiguring a Brick in a Volume
      10. 11.10. Replacing Hosts
        1. 11.10.1. Replacing a Host Machine with a Different Hostname
        2. 11.10.2. Replacing a Host Machine with the Same Hostname
      11. 11.11. Rebalancing Volumes
        1. 11.11.1. Rebalance Throttling
        2. 11.11.2. Displaying Rebalance Progress
        3. 11.11.3. Stopping a Rebalance Operation
      12. 11.12. Setting up Shared Storage Volume
      13. 11.13. Stopping Volumes
      14. 11.14. Deleting Volumes
      15. 11.15. Managing Split-brain
        1. 11.15.1. Preventing Split-brain
        2. 11.15.2. Recovering from File Split-brain
        3. 11.15.3. Recovering GFID Split-brain from the gluster CLI
        4. 11.15.4. Triggering Self-Healing on Replicated Volumes
      16. 11.16. Recommended Configurations - Dispersed Volume
      17. 11.17. Consistent time attributes within Replica and Disperse subvolumes
        1. 11.17.1. Pre-requisites
        2. 11.17.2. Enabling and disabling the Consistent Time Feature
        3. 11.17.3. Advantages of Consistent Time Feature
        4. 11.17.4. Extended Attribute Format
        5. 11.17.5. Upgrade
        6. 11.17.6. Limitations
    5. 12. Managing Red Hat Gluster Storage Logs
      1. 12.1. Log Rotation
      2. 12.2. Red Hat Gluster Storage Component Logs and Location
      3. 12.3. Configuring the Log Format
      4. 12.4. Configuring the Log Level
      5. 12.5. Suppressing Repetitive Log Messages
      6. 12.6. Geo-replication Logs
        1. 12.6.1. Viewing the Geo-replication Master Log Files
        2. 12.6.2. Viewing the Geo-replication Slave Log Files
    6. 13. Managing Red Hat Gluster Storage Volume Life-Cycle Extensions
      1. 13.1. Location of Scripts
      2. 13.2. Prepackaged Scripts
    7. 14. Detecting BitRot
      1. 14.1. Enabling and Disabling the BitRot daemon
      2. 14.2. Modifying BitRot Detection Behavior
      3. 14.3. Restoring a bad file
    8. 15. Incremental Backup Assistance using Glusterfind
      1. 15.1. Glusterfind Configuration Options
        1. 15.1.1. Adding or Replacing a Brick from an Existing Glusterfind Session
    9. 16. Managing Tiering (Deprecated)
      1. 16.1. Tiering Architecture (Deprecated)
      2. 16.2. Key Benefits of Tiering (Deprecated)
      3. 16.3. Tiering Limitations (Deprecated)
      4. 16.4. Attaching a Tier to a Volume (Deprecated)
        1. 16.4.1. Attaching a Tier to a Geo-replicated Volume (Deprecated)
      5. 16.5. Configuring a Tiering Volume (Deprecated)
        1. 16.5.1. Configuring Watermarks (Deprecated)
        2. 16.5.2. Configuring Promote and Demote Frequency (Deprecated)
        3. 16.5.3. Configuring Read and Write Frequency (Deprecated)
        4. 16.5.4. Configuring Target Data Size (Deprecated)
        5. 16.5.5. Configuring the File Count per Cycle (Deprecated)
      6. 16.6. Displaying Tiering Status Information (Deprecated)
      7. 16.7. Detaching a Tier from a Volume (Deprecated)
        1. 16.7.1. Detaching a Tier of a Geo-replicated Volume (Deprecated)
  6. V. Monitor and Tune
    1. 17. Monitoring Red Hat Gluster Storage Gluster Workload
      1. 17.1. Profiling volumes
        1. 17.1.1. Server-side volume profiling using volume profile
        2. 17.1.2. Client-side volume profiling (FUSE only)
      2. 17.2. Running the Volume Top Command
        1. 17.2.1. Viewing Open File Descriptor Count and Maximum File Descriptor Count
        2. 17.2.2. Viewing Highest File Read Calls
        3. 17.2.3. Viewing Highest File Write Calls
        4. 17.2.4. Viewing Highest Open Calls on a Directory
        5. 17.2.5. Viewing Highest Read Calls on a Directory
        6. 17.2.6. Viewing Read Performance
        7. 17.2.7. Viewing Write Performance
      3. 17.3. Listing Volumes
      4. 17.4. Displaying Volume Information
      5. 17.5. Obtaining Node Information
      6. 17.6. Retrieving Current Volume Option Settings
        1. 17.6.1. Retrieving Value of a Specific Volume Option
        2. 17.6.2. Retrieving all Options of a Volume
        3. 17.6.3. Retrieving all Global Options
      7. 17.7. Viewing complete volume state with statedump
        1. 17.7.1. Gathering information from the server
        2. 17.7.2. Gathering information from the client
        3. 17.7.3. Controlling statedump output location
      8. 17.8. Displaying Volume Status
      9. 17.9. Troubleshooting issues in the Red Hat Gluster Storage Trusted Storage Pool
        1. 17.9.1. Troubleshooting a network issue in the Red Hat Gluster Storage Trusted Storage Pool
    2. 18. Managing Resource Usage
    3. 19. Tuning for Performance
      1. 19.1. Disk Configuration
        1. 19.1.1. Hardware RAID
        2. 19.1.2. JBOD
      2. 19.2. Brick Configuration
        1. 19.2.1. Many Bricks per Node
        2. 19.2.2. Port Range Configuration
      3. 19.3. Network
      4. 19.4. Memory
        1. 19.4.1. Virtual Memory Parameters
      5. 19.5. Small File Performance Enhancements
        1. 19.5.1. Enabling Lookup Optimization
      6. 19.6. Replication
      7. 19.7. Directory Operations
        1. 19.7.1. Enabling Metadata Caching
      8. 19.8. LVM Cache for Red Hat Gluster Storage
        1. 19.8.1. About LVM Cache
        2. 19.8.2. Choosing the Size and Speed of Your Cache Devices
        3. 19.8.3. Configuring LVM Cache
        4. 19.8.4. Managing LVM Cache
  7. VI. Security
    1. 20. Configuring Network Encryption in Red Hat Gluster Storage
      1. 20.1. Preparing Certificates
      2. 20.2. Configuring Network Encryption for a New Trusted Storage Pool
        1. 20.2.1. Enabling Management Encryption
        2. 20.2.2. Enabling I/O Encryption
      3. 20.3. Configuring Network Encryption for an existing Trusted Storage Pool
        1. 20.3.1. Enabling I/O Encryption
      4. 20.4. Enabling Management Encryption
      5. 20.5. Expanding Volumes
        1. 20.5.1. Certificate signed by a Common Certificate Authority
        2. 20.5.2. Self-signed Certificates
      6. 20.6. Authorizing a New Client
        1. 20.6.1. Certificate Signed by a Common Certificate Authority
        2. 20.6.2. Self-signed Certificates
      7. 20.7. Deauthorizing a Client
        1. 20.7.1. To Remove an Authorized Client From the Allowed List
        2. 20.7.2. To Revoke SSL/TLS Certificate Authorization Using a SSL Certificate Revocation List
      8. 20.8. Disabling Network Encryption
  8. VII. Troubleshoot
    1. 21. Resolving Common Issues
      1. 21.1. Identifying locked file and clear locks
      2. 21.2. Retrieving File Path from the Gluster Volume
        1. 21.2.1. Retrieving Known File Name
        2. 21.2.2. Retrieving Unknown File Name
        3. 21.2.3. Retrieving File Path using gfid String
        4. 21.2.4. Controlling Self-heal for Dispersed Volumes
      3. 21.3. Resolving glusterd Crash
      4. 21.4. Restarting a dead/failed brick
      5. 21.5. Deactivating a group configuration
  9. VIII. Appendices
    1. 22. Starting and Stopping the glusterd service
    2. 23. Manually Recovering File Split-brain
  10. A. Revision History
  11. Legal Notice

Part IV. Manage

  • 7.2.3. Verify/Test Active Directory and Services
  • 8. Managing Snapshots
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