### Example: Start Geo-Replication

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Geo%20Replication

Examples demonstrating how to start a geo-replication session with and without specifying a user for the slave host.

```bash
gluster volume geo-replication gv1 snode1::gv2 start

```

```bash
gluster volume geo-replication gv1 geoaccount@snode1::gv2 start

```

--------------------------------

### Install GlusterFS

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Gluster-On-ZFS

Installs GlusterFS server and client packages, starts the GlusterFS daemon, and enables it to start on boot.

```bash
wget -P /etc/yum.repos.d http://download.gluster.org/pub/gluster/glusterfs/LATEST/EPEL.repo/glusterfs-epel.repo
yum install glusterfs{-fuse,-server}
service glusterd start
service glusterd status
chkconfig glusterd on
```

--------------------------------

### Example: Start Geo-Replication Session

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Geo-Replication

An example demonstrating how to start a geo-replication session with specific primary and secondary volume details.

```bash
gluster volume geo-replication gvol-primary  \
  geoaccount@snode1.example.com::gvol-secondary \
  start

```

--------------------------------

### Configurable Simple GlusterFS Setup

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Puppet

This example shows how to pass parameters to the `gluster::simple` class to customize the GlusterFS setup, such as defining the replica count and specifying multiple volumes.

```puppet
class { '::gluster::simple':
    replica => 2,
    volume => ['volume1', 'volume2', 'volumeN'],
}
```

--------------------------------

### Install and Start SCSI Target Service

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/GlusterFS%20iSCSI

Install the necessary scsi-target-utils package and start the target daemon service.

```bash
# yum install scsi-target-utils
# service tgtd start
```

--------------------------------

### Configure and Start Keystone Service

Source: https://docs.gluster.org/en/latest/Administrator-Guide/GlusterFS-Keystone-Quickstart

Enable the Keystone service to start on boot and then start the service. A delay may be needed before interacting with the service if scripting.

```bash
sudo chkconfig openstack-keystone on
sudo service openstack-keystone start # If you script this, you'll want to wait a few seconds to start using it
```

--------------------------------

### Build and Install GlusterFS from Source

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Setting-Up-Clients

Compiles and installs the Gluster Native Client software after the configuration step. This command builds the client and installs it to the system.

```bash
make
make install

```

--------------------------------

### Build and Install ZFS

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Gluster-On-ZFS

Builds and installs ZFS from source. This includes installing preliminary packages, configuring, compiling, and installing the ZFS RPMs, excluding the static module RPM.

```bash
yum install zlib-devel libuuid-devel libblkid-devel libselinux-devel parted lsscsi
./configure
make rpm
rm zfs-modules-0.6.0*.x86_64.rpm
rpm -Uvh zfs*.x86_64.rpm zfs*.noarch.rpm

```

--------------------------------

### Install GlusterFS

Source: https://docs.gluster.org/en/latest/Developer-guide/Building-GlusterFS

Install the built GlusterFS binaries and files into the system. 'sudo' may be required if installing to a default prefix like '/usr/local'.

```bash
sudo make install
```

--------------------------------

### Install and Start iSCSI Target Service

Source: https://docs.gluster.org/en/latest/Administrator-Guide/GlusterFS-iSCSI

Install the necessary scsi-target-utils package and start the target daemon service. This provides the iSCSI target functionality.

```bash
yum install scsi-target-utils
service tgtd start
```

--------------------------------

### Example: Retrieving Backend Brick Path from GFID

Source: https://docs.gluster.org/en/latest/Troubleshooting/gfid-to-path

Demonstrates using the `trusted.glusterfs.pathinfo` extended attribute to get the backend brick path for a given GFID. Shows the output format including volume type and brick path.

```bash
[root@vm1 glusterfs]# getfattr -n trusted.glusterfs.pathinfo -e text /mnt/testvol/.gfid/11118443-1894-4273-9340-4b212fa1c0e4
getfattr: Removing leading '/' from absolute path names
# file: mnt/testvol/.gfid/11118443-1894-4273-9340-4b212fa1c0e4
trusted.glusterfs.pathinfo="(<DISTRIBUTE:test-dht> <POSIX(/mnt/brick-test/b):vm1:/mnt/brick-test/b/dir//file3>)"

```

--------------------------------

### Build and Install GlusterFS

Source: https://docs.gluster.org/en/latest/Developer-guide/Development-Workflow

Compile the GlusterFS source code and install it on the system.

```bash
make && make install

```

--------------------------------

### Enable and Start glusterd Automatically (systemd)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Start-Stop-Daemon

This command enables the glusterd service to start on boot and starts it immediately if it's not already running.

```bash
systemctl enable --now glusterd

```

--------------------------------

### Install GlusterFS Server

Source: https://docs.gluster.org/en/v3/Quick-Start-Guide/Quickstart

Install the GlusterFS server package on both nodes.

```bash
yum	install	glusterfs-server
```

--------------------------------

### Configure Automatic Start on Boot (Debian/Ubuntu)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Start-Stop-Daemon

Configure Debian-based systems to automatically start glusterd on system boot.

```bash
update-rc.d glusterd defaults

```

--------------------------------

### Example: Set Geo-Replication Checkpoint

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Geo%20Replication

An example of setting a checkpoint for Geo-Replication between 'gv1' and 'snode1::gv2'.

```bash
gluster volume geo-replication gv1 snode1::gv2 config checkpoint now
```

--------------------------------

### Start glusterd Manually (init.d)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Start-Stop-Daemon

Use this command to start the glusterd service on systems using init.d scripts.

```bash
/etc/init.d/glusterd start

```

--------------------------------

### Example: Mount Specific Device with ACLs

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Access-Control-Lists

Example of mounting a specific device partition with POSIX ACLs support.

```bash
mount -o acl /dev/sda1 /export1

```

--------------------------------

### Install Development Tools

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Gluster-On-ZFS

Installs essential development tools required for compiling ZFS from source.

```bash
yum groupinstall "Development Tools"

```

--------------------------------

### Example: Mount GlusterFS Volume with ACLs

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Access-Control-Lists

Example of mounting a glusterfs volume with POSIX ACLs support.

```bash
mount -t glusterfs -o acl 198.192.198.234:glustervolume /mnt/gluster

```

--------------------------------

### Install Gluster Server on Ubuntu

Source: https://docs.gluster.org/en/v3/Install-Guide/Install

Installs the GlusterFS server package on Ubuntu systems after adding the community PPA.

```bash
sudo apt-get install glusterfs-server
```

--------------------------------

### Start glusterd Manually (systemd)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Start-Stop-Daemon

Use this command to start the glusterd service on systems using systemd.

```bash
systemctl start glusterd

```

--------------------------------

### Start Gluster Daemon (Online Upgrade)

Source: https://docs.gluster.org/en/latest/Upgrade-Guide/upgrade-to-4.1

Starts the Gluster daemon on the upgraded server to bring services back online.

```bash
glusterd
```

--------------------------------

### Example: View Geo-Replication Configuration Options

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Geo%20Replication

Examples demonstrating how to view general configuration and specific options like 'sync-jobs' for a geo-replication session.

```bash
gluster volume geo-replication gv1 snode1::gv2 config

```

```bash
gluster volume geo-replication gv1 snode1::gv2 config sync-jobs

```

--------------------------------

### Install Gluster Native Client Prerequisites

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Setting-Up-Clients

Installs necessary prerequisite packages for the Gluster Native Client on RPM-based distributions.

```bash
sudo yum -y install openssh-server wget fuse fuse-libs openib libibverbs

```

--------------------------------

### Start Gluster Daemon

Source: https://docs.gluster.org/en/v3/Upgrade-Guide/upgrade_to_4.0

Start the Gluster daemon after installing the new version on a server. This is required for both online and offline upgrade procedures.

```bash
#glusterd

```

--------------------------------

### Display Configure Help

Source: https://docs.gluster.org/en/latest/Developer-guide/Building-GlusterFS

View all available configuration options by running the configure script with the '--help' flag.

```bash
./configure --help
```

--------------------------------

### Example: Create Test Volume with Thin Arbiter

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Thin-Arbiter-Volumes

An example demonstrating the creation of a Gluster volume named 'testvol' with replica 2 and a thin arbiter. The --force option is used to override potential warnings.

```bash
glustercli volume create testvol --replica 2 server{1..2}:/bricks/brick-{1..2} --thin-arbiter server-3:/bricks/brick_ta --force
volume create: testvol: success: please start the volume to access data

```

--------------------------------

### Example: Configure Sync Jobs for Geo-Replication

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Geo%20Replication

Example showing how to configure the number of simultaneous file synchronizations for a geo-replication session.

```bash
gluster volume geo-replication gv1 snode1::gv2 config sync-jobs 3

```

--------------------------------

### GlusterFS Self-Heal Log Entries

Source: https://docs.gluster.org/en/latest/Troubleshooting/troubleshooting-afr

Example log messages indicating the progress of entry and metadata self-healing operations. These logs show when healing starts, completes, and the sources/sinks involved for specific file GFIDs.

```log
[2019-05-07 12:05:14.460442] I [MSGID: 108026] [afr-self-heal-entry.c:883:afr_selfheal_entry_do] 0-testvol-replicate-0: performing entry selfheal on d120c0cf-6e87-454b-965b-0d83a4c752bb

[2019-05-07 12:05:14.474710] I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal] 0-testvol-replicate-0: Completed entry selfheal on d120c0cf-6e87-454b-965b-0d83a4c752bb. sources=[0] 2 sinks=1

[2019-05-07 12:05:14.493506] I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal] 0-testvol-replicate-0: Completed data selfheal on a9b5f183-21eb-4fb3-a342-287d3a7dddc5. sources=[0] 2 sinks=1

[2019-05-07 12:05:14.494577] I [MSGID: 108026] [afr-self-heal-metadata.c:52:__afr_selfheal_metadata_do] 0-testvol-replicate-0: performing metadata selfheal on a9b5f183-21eb-4fb3-a342-287d3a7dddc5

[2019-05-07 12:05:14.498398] I [MSGID: 108026] [afr-self-heal-common.c:1741:afr_log_selfheal] 0-testvol-replicate-0: Completed metadata selfheal on a9b5f183-21eb-4fb3-a342-287d3a7dddc5. sources=[0] 2 sinks=1

```

--------------------------------

### Example gfind_missing_files.sh Execution and Output

Source: https://docs.gluster.org/en/v3/GlusterFS%20Tools/gfind_missing_files

Demonstrates how to run gfind_missing_files.sh and shows a typical output, including the GFIDs of missing files and a warning for unconvertible GFIDs.

```bash
$ionice -c 2 -n 7 ./gfind_missing_files.sh /bricks/m3 acdc slave-vol ~/test_results/m3-4.txt
Calling crawler...
Crawl Complete.
gfids of skipped files are available in the file /root/test_results/m3-4.txt
Starting gfid to path conversion
Path names of skipped files are available in the file /root/test_results/m3-4.txt_pathnames
WARNING: Unable to convert some GFIDs to Paths, GFIDs logged to /root/test_results/m3-4.txt_gfids
Use bash gfid_to_path.sh <brick-path> /root/test_results/m3-4.txt_gfids to convert those GFIDs to Path
Total Missing File Count : 126733
```

--------------------------------

### Arguments for Volume Start

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Hook-scripts

When starting a volume, these arguments can be passed to the hook scripts to indicate if it's the first volume being started.

```bash
Start volume
    --first=yes, if the volume is the first to be started
    --first=no, for otherwise
```

--------------------------------

### Install Additional Dependencies and Tools

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Building%20QEMU%20With%20gfapi%20For%20Debian%20Based%20Systems

Installs remaining dependencies and tools needed for building QEMU, including GlusterFS related libraries.

```bash
# get almost all the rest and the tools to work up the Debian magic
apt-get install devscripts quilt libiscsi-dev libusbredirparser-dev libssh2-1-dev libvdeplug-dev libjpeg-dev glusterfs*
```

--------------------------------

### Start a Gluster Volume

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Setting-Up-Volumes

Starts a Gluster volume. Ensure the volume is started before attempting to mount it to avoid client operations hanging.

```bash
# gluster volume start <VOLNAME> [force]
```

```bash
# gluster volume start test-volume
Starting test-volume has been successful
```

--------------------------------

### Create and Start GlusterFS Admin Volume

Source: https://docs.gluster.org/en/latest/Administrator-Guide/GlusterFS-Keystone-Quickstart

Creates and starts a GlusterFS volume for administrative purposes and then starts the OpenStack Keystone service.

```bash
sudo gluster volume create $volname $myhostname:$pathtobrick
sudo gluster volume start $volname
sudo service openstack-keystone start

```

--------------------------------

### Configure Automatic Start on Boot (Red Hat/Fedora)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Start-Stop-Daemon

Configure Red Hat-based systems to automatically start glusterd on system boot.

```bash
chkconfig glusterd on

```

--------------------------------

### Example: Create Gluster Snapshots

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Geo%20Replication

An example of creating snapshots named 'snap1' for volumes 'gv2' (slave) and 'gv1' (master).

```bash
gluster snapshot create snap1 gv2
gluster snapshot create snap1 gv1
```

--------------------------------

### Install GCC, Python Development Headers, and Setuptools on Fedora

Source: https://docs.gluster.org/en/latest/Developer-guide/compiling-rpms

Installs necessary build tools for compiling GlusterFS on Fedora systems.

```bash
sudo yum -y install gcc python-devel python-setuptools

```

--------------------------------

### Install ZFS on RHEL 7

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Gluster-On-ZFS

Installs ZFS on Linux for RHEL 7 by adding EPEL and ZFS repositories and installing necessary packages.

```bash
yum localinstall --nogpgcheck https://download.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-2.noarch.rpm
yum localinstall --nogpgcheck http://archive.zfsonlinux.org/epel/zfs-release.el7.noarch.rpm
yum install kernel-devel zfs

```

--------------------------------

### Simple GlusterFS Setup with Puppet

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Puppet

This snippet demonstrates the most basic way to set up a GlusterFS cluster using the `gluster::simple` class. It ensures identical configurations across all hosts in the cluster by using a shared Puppet host definition.

```puppet
node /^annex\d+$/ {
        class { '::gluster::simple':
        }
}
```

--------------------------------

### Install ZFS on RHEL 6

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Gluster-On-ZFS

Installs ZFS on Linux for RHEL 6 by adding EPEL and ZFS repositories and installing necessary packages.

```bash
yum localinstall --nogpgcheck https://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
yum localinstall --nogpgcheck http://archive.zfsonlinux.org/epel/zfs-release.el6.noarch.rpm
yum install kernel-devel zfs

```

--------------------------------

### Example 'mount' Output for GlusterFS

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Setting%20Up%20Clients

This is an example of what the output of the `mount` command might look like after a successful Gluster volume mount.

```bash
server1:/test-volume on /mnt/glusterfs type fuse.glusterfs (rw,allow_other,default_permissions,max_read=131072
```

--------------------------------

### Install OpenSSH Server on Debian

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Setting-Up-Clients

Installs the OpenSSH server, vim, and wget packages on Debian-based systems. This is a prerequisite for Gluster Native Client installation.

```bash
sudo apt-get install openssh-server vim wget

```

--------------------------------

### Build and Install GlusterFS from Source

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Setting%20Up%20Clients

Compiles and installs the Gluster Native Client software after the configuration step. These commands are executed in the source directory.

```bash
# make 
```

```bash
# make install
```

--------------------------------

### Starting and Enabling Bareos Daemons

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Bareos

Ensures that the Bareos storage daemon, file daemon, and director services are running and configured to start automatically on system boot.

```bash
systemctl start bareos­sd
systemctl start bareos­fd
systemctl start bareos­dir
systemctl enable bareos­sd
systemctl enable bareos­fd
systemctl enable bareos­dir
```

--------------------------------

### Enable and Start Events API (SysVInit)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Events-APIs

For SysVInit systems like CentOS 6, enable the glustereventsd service to start on boot and then start the service.

```bash
chkconfig glustereventsd on
service glustereventsd start

```

--------------------------------

### Example: Create a Test Arbiter Volume

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/arbiter-volumes-and-quorum

An example demonstrating the creation of a Gluster volume named 'testvol' with replica 3 and arbiter 1, using six bricks.

```bash
# gluster volume create testvol replica 3 arbiter 1  server{1..6}:/bricks/brick
volume create: testvol: success: please start the volume to access data
```

--------------------------------

### Enable and Start Events API (Systemd)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Events-APIs

For systems using systemd, enable and start the glustereventsd service. This ensures the service starts on boot and is running.

```bash
systemctl enable glustereventsd
systemctl start glustereventsd

```

--------------------------------

### Example gfind_missing_files.sh Execution and Output

Source: https://docs.gluster.org/en/latest/GlusterFS-Tools/gfind-missing-files

This example demonstrates how to run the gfind_missing_files.sh script and shows a typical output, including the GFIDs of skipped files and a warning about potential GFID-to-path conversion failures.

```bash
# ionice -c 2 -n 7 ./gfind_missing_files.sh /bricks/m3 acdc secondary-vol ~/test_results/m3-4.txt
Calling crawler...
Crawl Complete.
gfids of skipped files are available in the file /root/test_results/m3-4.txt
Starting gfid to path conversion
Path names of skipped files are available in the file /root/test_results/m3-4.txt_pathnames
WARNING: Unable to convert some GFIDs to Paths, GFIDs logged to /root/test_results/m3-4.txt_gfids
Use bash gfid_to_path.sh <brick-path> /root/test_results/m3-4.txt_gfids to convert those GFIDs to Path
Total Missing File Count : 126733
```

--------------------------------

### Example: Create an Arbiter Volume

Source: https://docs.gluster.org/en/latest/Administrator-Guide/arbiter-volumes-and-quorum

An example of creating an arbiter volume named 'testvol' with 6 bricks, configured as replica 2 with 1 arbiter.

```bash
gluster volume create testvol replica 2 arbiter 1  server{1..6}:/bricks/brick
```

--------------------------------

### Configure Automatic Start on Boot (Other Systems)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Start-Stop-Daemon

Configure systems other than Red Hat or Debian to automatically start glusterd by adding an entry to /etc/rc.local.

```bash
echo "glusterd" >> /etc/rc.local

```

--------------------------------

### Build and Install ZFS RPMs

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Gluster%20On%20ZFS

Installs necessary development packages, configures, builds, and installs the ZFS RPM packages. It removes the static module RPM as DKMS is being used.

```bash
yum	install	zlib-devel	libuuid-devel	libblkid-devel	libselinux-devel	parted	lsscsi
./configure
make	rpm
rm	zfs-modules-0.6.0*.x86_64.rpm
rpm	-Uvh	zfs*.x86_64.rpm	zfs*.noarch.rpm
```

--------------------------------

### Build and Install SPL

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Gluster-On-ZFS

Builds and installs the SPL (Solaris Porting Layer) from source. This process generates RPMs, removes the static module RPM, and installs the remaining packages.

```bash
./configure
make rpm
rm spl-modules-0.6.0*.x86_64.rpm
rpm -Uvh spl*.x86_64.rpm spl*.noarch.rpm

```

--------------------------------

### Download and Prepare QEMU and GlusterFS Sources

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Building%20QEMU%20With%20gfapi%20For%20Debian%20Based%20Systems

Downloads QEMU and GlusterFS source code and their respective Debian packaging files. It also prepares the GlusterFS source for integration into the QEMU build.

```bash
cd ..
mkdir qemu
cd qemu
# download our sources. you'll want to check back frequently on these for changes
wget http://ftp.de.debian.org/debian/pool/main/q/qemu/qemu_1.7.0+dfsg.orig.tar.xz
wget http://ftp.de.debian.org/debian/pool/main/q/qemu/qemu_1.7.0+dfsg-2.debian.tar.gz
wget http://download.gluster.org/pub/gluster/glusterfs/3.4/LATEST/glusterfs-3.4.2.tar.gz
tar xf glusterfs-3.4.2.tar.gz 
tar xf qemu_1.7.0+dfsg.orig.tar.xz 
cd qemu-1.7.0+dfsg/
# unpack the debian magic
tar xf ../qemu_1.7.0+dfsg-2.debian.tar.gz
# bring glusterfs in to the buiild
cp -r ../glusterfs-3.4.2 glusterfs
# the glusterfs check in configure looks around weird. I've never asked why but moving the src stuff up one works and tests fine
cd glusterfs/api/
mv src/* .
cd ../..
#you'll need to edit debian/control to enable glusterfs replacing

 - ##--enable-glusterfs todo 
 + # --enable-glusterfs 
 + glusterfs-common (>= 3.4.0),

#And finally build. It'll take ages.  http://xkcd.com/303/
# apply series if any
while quilt push; do quilt refresh; done
# build packages
debuild -i -us -uc -b
cd ..
```

--------------------------------

### Mount Partition and Prepare Gluster Brick

Source: https://docs.gluster.org/en/latest/Install-Guide/Configure

Create the directory `/export/sdb1` if it doesn't exist and then mount all filesystems defined in `/etc/fstab`.

```bash
mkdir -p /export/sdb1 && mount -a

```

--------------------------------

### Install software-properties-common on Ubuntu

Source: https://docs.gluster.org/en/latest/Install-Guide/Install

Installs the software-properties-common package, which is required for managing repositories on Ubuntu.

```bash
apt install software-properties-common

```

--------------------------------

### GlusterFS Configure Summary

Source: https://docs.gluster.org/en/v3/Developer-guide/Building-GlusterFS

Example output of the GlusterFS configure script, showing enabled features.

```text
GlusterFS configure summary
===========================
FUSE client         : yes
Infiniband verbs     : yes
epoll IO multiplex   : yes
argp-standalone       : no
fusermount           : yes
readline             : yes
georeplication       : yes
Linux-AIO           : yes
Enable Debug       : no
Block Device xlator   : yes
glupy                 : yes
Use syslog           : yes
XML output           : yes
Encryption xlator     : yes
Unit Tests       : no
Track priv ports     : yes
POSIX ACLs           : yes
Data Classification  : yes
SELinux features     : yes
firewalld-config     : no
Experimental xlators : yes
Events           : yes
EC dynamic support   : x64 sse avx
Use memory pools     : yes
Nanosecond m/atimes  : yes
Legacy gNFS server   : no

```

--------------------------------

### Install GlusterFS Server on Debian

Source: https://docs.gluster.org/en/latest/Install-Guide/Install

Installs the GlusterFS server package on Debian-based systems.

```bash
apt install glusterfs-server

```

--------------------------------

### Create Geo-replication Setup

Source: https://docs.gluster.org/en/v3/release-notes/4.0.0

Use this command to set up Geo-replication when Master and Remote volumes are available and running.

```bash
glustercli geo-replication create <mastervol> <remotehost>::<remotevol>
```

--------------------------------

### Install Openstack-Keystone

Source: https://docs.gluster.org/en/latest/Administrator-Guide/GlusterFS-Keystone-Quickstart

Installs the OpenStack Keystone service, utility tools, and Python client.

```bash
sudo yum install openstack-keystone openstack-utils python-keystoneclient

```

--------------------------------

### Start glusterd Manually

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Start%20Stop%20Daemon

Use this command to start the glusterd service on a GlusterFS server.

```bash
# /etc/init.d/glusterd start
```

--------------------------------

### Create and Mount Brick Directories (Two Bricks Per Server)

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Brick-Naming-Conventions

On all servers, create two brick directories and mount their respective physical disk partitions. This prepares the system for a volume with multiple bricks per server.

```bash
mkdir -p /data/glusterfs/myvol2/brick{1,2}
mount /dev/sdb1 /data/glusterfs/myvol2/brick1
mount /dev/sdc1 /data/glusterfs/myvol2/brick2
```

--------------------------------

### Start Gluster Events Daemon

Source: https://docs.gluster.org/en/latest/Upgrade-Guide/generic-upgrade-procedure

Starts the glustereventsd service if it was previously enabled and stopped.

```bash
systemctl start glustereventsd

```

--------------------------------

### Start Gluster Events Daemon

Source: https://docs.gluster.org/en/latest/Upgrade-Guide/upgrade-to-4.1

Starts the glustereventsd service if it was previously enabled and stopped.

```bash
systemctl start glustereventsd
```

--------------------------------

### Initialize Bareos SQLite Database

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Bareos

Creates the initial Bareos database using SQLite and sets the correct ownership and permissions for the database file. This is a minimal setup for testing.

```bash
# sqlite3 /var/lib/bareos/bareos.db < /usr/lib/bareos/scripts/ddl/creates/sqlite3.sql
# chown bareos:bareos /var/lib/bareos/bareos.db
# chmod 0660 /var/lib/bareos/bareos.db

```

--------------------------------

### Example of Deleting a Geo-Replication Session

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Geo%20Replication

This example shows how to delete a specific geo-replication session.

```bash
gluster volume geo-replication gv1 snode1::gv2 delete

```

--------------------------------

### Install QEMU Build Dependencies

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Building-QEMU-With-gfapi-For-Debian-Based-Systems

Installs the necessary build dependencies for QEMU on Debian-based systems.

```bash
apt-get  build-dep qemu

```

--------------------------------

### Start GlusterFS Daemon

Source: https://docs.gluster.org/en/v3/Developer-guide/Building-GlusterFS

Manually starts the glusterd daemon in the background. Requires root privileges.

```bash
# glusterd

```

--------------------------------

### Run Bareos Backup Job

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Bareos

Initiate a backup job using bconsole. This example shows how to select and run the 'BackupClient1' job.

```bash
*run
A job name must be specified.
The defined Job resources are:
        1: BackupClient1
        2: BackupCatalog
        3: RestoreFiles
Select Job resource (1-3): 1
Run Backup job
JobName:  BackupClient1
Level:    Incremental
Client:   backup-fd
...    
OK to run? (yes/mod/no): yes
Job queued. JobId=1

```

--------------------------------

### Create and Mount Volume

Source: https://docs.gluster.org/en/v3/Administrator%20Guide/Trash

Create a simple distributed GlusterFS volume and start it, followed by mounting the volume using the native client.

```bash
# gluster volume create test rhs:/home/brick
# gluster volume start test
# mount -t glusterfs  rhs:test /mnt
```

--------------------------------

### Set Alert Time Example

Source: https://docs.gluster.org/en/latest/Administrator-Guide/Directory-Quota

Example of setting the alert time to one day for the 'test-volume'.

```bash
# gluster volume quota test-volume alert-time 1d
volume quota : success
```