0.实验前的环境检查
lab basicconfig setup检查环境，网络配置和主机的启动情况检查。
[student@workstation ~]$ lab basicconfig setup
Testing if serverc and serverd are ready for lab exercise work:
· Testing if serverc is reachable............................. PASS
· Testing if glusterd is active on serverc.................... PASS
· Testing if glusterd is active on serverc.................... PASS
· Testing if serverd is reachable............................. PASS
· Testing if glusterd is active on serverd.................... PASS
· Testing if glusterd is active on serverd.................... PASS
1.配置存储池
在serverc上， firewall-cmd --add-service=glusterfs放行glusterfs， firewall-cmd --permanent --add-service=glusterfs永久放行。serverd类似操作。gluster peer probe serverd.lab.example.com在serverc与serverd间建立可信任的存储池。
[root@serverc ~]# firewall-cmd --add-service=glusterfs
success
[root@serverc ~]# firewall-cmd --permanent --add-service=glusterfs
success
[root@serverd ~]# firewall-cmd --add-service=glusterfs
success
[root@serverd ~]# firewall-cmd --permanent --add-service=glusterfs
success
[root@serverc ~]# gluster peer probe serverd.lab.example.com
peer probe: success.
2.配置brick
在serverc上，lvcreate -L 10G -T vg_bricks/labpool创建逻辑卷， lvcreate -V 2G -T vg_bricks/labpool -n brick-c1分配空间给brick-c1， mkfs -t xfs -i size=512 /dev/vg_bricks/brick-c1将空间格式化，mkdir -p /bricks/brick-c1创建目录，echo "/dev/vg_bricks/brick-c1 /bricks/brick-c1 xfs defaults 1 2" >> /etc/fstab编辑挂载配置文件， tail -1 /etc/fstab确认内容已写入，mount /bricks/brick-c1进行挂载，mkdir /bricks/brick-c1/brick创建目录，semanage fcontext -a -t glusterd_brick_t /bricks/brick-c1/brick编辑安全上下文，restorecon -Rv /bricks/brick-c1递归重载安全上下文。serverd类似操作。
[root@serverc ~]# lvcreate -L 10G -T vg_bricks/labpool
Logical volume "labpool" created.
[root@serverc ~]# lvcreate -V 2G -T vg_bricks/labpool -n brick-c1
Logical volume "brick-c1" created.
[root@serverc ~]# mkfs -t xfs -i size=512 /dev/vg_bricks/brick-c1
meta-data=/dev/vg_bricks/brick-c1 isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverc ~]# mkdir -p /bricks/brick-c1
[root@serverc ~]# echo "/dev/vg_bricks/brick-c1 /bricks/brick-c1 xfs defaults 1 2" >> /etc/fstab
[root@serverc ~]# tail -1 /etc/fstab
/dev/vg_bricks/brick-c1 /bricks/brick-c1 xfs defaults 1 2
[root@serverc ~]# mount /bricks/brick-c1
[root@serverc ~]# mkdir /bricks/brick-c1/brick
[root@serverc ~]# semanage fcontext -a -t glusterd_brick_t /bricks/brick-c1/brick
[root@serverc ~]# restorecon -Rv /bricks/brick-c1
restorecon reset /bricks/brick-c1/brick context unconfined_u:object_r:default_t:s0->unconfined_u:object_r:glusterd_brick_t:s0
[root@serverd ~]# lvcreate -L 10G -T vg_bricks/labpool
Logical volume "labpool" created.
[root@serverd ~]# lvcreate -V 2G -T vg_bricks/labpool -n brick-d1
Logical volume "brick-d1" created.
[root@serverd ~]# mkfs -t xfs -i size=512 /dev/vg_bricks/brick-d1
meta-data=/dev/vg_bricks/brick-d1 isize=512 agcount=8, agsize=65520 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=524160, imaxpct=25
= sunit=16 swidth=16 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=16 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@serverd ~]# mkdir -p /bricks/brick-d1
[root@serverd ~]# echo "/dev/vg_bricks/brick-d1 /bricks/brick-d1 xfs defaults 1 2" >> /etc/fstab
[root@serverd ~]# tail -1 /etc/fstab
/dev/vg_bricks/brick-d1 /bricks/brick-d1 xfs defaults 1 2
[root@serverd ~]# mount /bricks/brick-d1
[root@serverd ~]# mkdir /bricks/brick-d1/brick
[root@serverd ~]# semanage fcontext -a -t glusterd_brick_t /bricks/brick-d1/brick
[root@serverd ~]# restorecon -Rv /bricks/brick-d1
restorecon reset /bricks/brick-d1/brick context unconfined_u:object_r:default_t:s0->unconfined_u:object_r:glusterd_brick_t:s0
3.配置volume
gluster volume create labvol serverc:/bricks/brick-c1/brick serverd:/bricks/brick-d1/brick使用serverc和serverd的brick创建volume。gluster volume start labvol启动volume。 gluster volume info labvol确认volume信息。
[root@serverc ~]# glgluster volume start labvoluster volume create labvol serverc:/bricks/brick-c1/brick serverd:/bricks/brick-d1/brick
volume create: labvol: success: please start the volume to access data
[root@serverc ~]# gluster volume start labvol
volume start: labvol: success
[root@serverc ~]# gluster volume info labvol
Volume Name: labvol
Type: Distribute
Volume ID: 53d8bf84-e239-4395-9f32-3035db957038
Status: Started
Number of Bricks: 2
Transport-type: tcp
Bricks:
Brick1: serverc:/bricks/brick-c1/brick
Brick2: serverd:/bricks/brick-d1/brick
Options Reconfigured:
performance.readdir-ahead: on
4.任务测评
lab basicconfig grade对任务进行测评。包括：建立存储池，确认大小/状态，挂载文件并确认文件类型，编辑安全上下文，检查volume是否创建，确认brick数量和状态，确认serverc和serverd的brick，及volume的状态。
[student@workstation ~]$ lab basicconfig grade
Grading the student's work:
· Testing if both serverc and serverd are in pool............. PASS
· Testing for thinly provisioned pool on serverc.............. PASS
· Testing for thinly provisioned pool size on serverc......... PASS
· Testing for mounted file system and type on serverc......... PASS
· Testing for brick SELinux context on serverc................ PASS
· Testing for thinly provisioned pool on serverd.............. PASS
· Testing for thinly provisioned pool size on serverd......... PASS
· Testing for mounted file system and type on serverd......... PASS
· Testing for brick SELinux context on serverd................ PASS
· Checking if volume labvol exists............................ PASS
· Checking number of bricks in labvol......................... PASS
· Checking presence of serverc brick.......................... PASS
· Checking presence of serverd brick.......................... PASS
· Checking if labvol is started............................... PASS
Overall lab grade.............................................. PASS
5.清除数据
对workstation,servera,serverb,serverc,serverd的数据进行清除，恢复环境初始状态。
[kiosk@foundation0 ~]$ rht-vmctl reset workstation
Are you sure you want to reset workstation? (y/n) y
Powering off workstation..
Resetting workstation.
Creating virtual machine disk overlay for rh236-workstation-vda.qcow2
Starting workstation.
[kiosk@foundation0 ~]$ rht-vmctl reset servera
Are you sure you want to reset servera? (y/n) y
Powering off servera..
Resetting servera.
Creating virtual machine disk overlay for rh236-servera-vda.qcow2
Creating virtual machine disk overlay for rh236-servera-vdb.qcow2
Starting servera.
[kiosk@foundation0 ~]$ rht-vmctl reset serverb
Are you sure you want to reset serverb? (y/n) y
Powering off serverb..
Resetting serverb.
Creating virtual machine disk overlay for rh236-serverb-vda.qcow2
Creating virtual machine disk overlay for rh236-serverb-vdb.qcow2
Starting serverb.
[kiosk@foundation0 ~]$ rht-vmctl reset serverc
Are you sure you want to reset serverc? (y/n) y
Powering off serverc..
Resetting serverc.
Creating virtual machine disk overlay for rh236-serverc-vda.qcow2
Creating virtual machine disk overlay for rh236-serverc-vdb.qcow2
Starting serverc.
[kiosk@foundation0 ~]$ rht-vmctl reset serverd
Are you sure you want to reset serverd? (y/n) y
Powering off serverd..
Resetting serverd.
Creating virtual machine disk overlay for rh236-serverd-vda.qcow2
Creating virtual machine disk overlay for rh236-serverd-vdb.qcow2
Starting serverd.