ClusterStorage-10-快照实验

0.实验前的环境检查与配置

[student@workstation ~]$ lab snapshots setup
 

1.测试删除

gluster snapshot delete tigers删除快照。

[root@serverc ~]# gluster snapshot delete tigers
Deleting snap will erase all the information about the snap. Do you still want to continue? (y/n) y
snapshot delete: tigers: snap removed successfully
 

2.测试克隆

gluster snapshot clone otters elephants克隆快照。 gluster volume start otters启用快照。

[root@serverc ~]# gluster snapshot clone otters elephants
snapshot clone: success: Clone otters created successfully
[root@serverc ~]# gluster volume start otters
volume start: otters: success
 

3.配置参数

gluster snapshot config snap-max-hard-limit 64 snap-max-soft-limit 75设置允许的快照数及启动监测的百分比。gluster snapshot config auto-delete enable开启自动删除功能。gluster snapshot config activate-on-create enable开启自动创建功能。

[root@serverc ~]# gluster snapshot config snap-max-hard-limit 64 snap-max-soft-limit 75
Changing snapshot-max-hard-limit will limit the creation of new snapshots if they exceed the new snapshot-max-hard-limit.
If Auto-delete is enabled, snap-max-soft-limit will trigger deletion of oldest snapshot, on the creation of new snapshot, when the snap-max-soft-limit is reached.
Do you want to continue? (y/n) y
snapshot config: snap-max-hard-limit & snap-max-soft-limit for system set successfully
[root@serverc ~]# gluster snapshot config auto-delete enable
snapshot config: auto-delete successfully set
[root@serverc ~]# gluster snapshot config activate-on-create enable
snapshot config: activate-on-create successfully set
 

4.启动服务

umount /mnt/zoo取消挂载。gluster volume set zoo features.uss enable启动用户服务功能。mount /mnt/zoo重新挂载。

[root@workstation ~]# umount /mnt/zoo
[root@serverc ~]# gluster volume set zoo features.uss enable
volume set: success
[root@workstation ~]# mount /mnt/zoo
 

5.创建快照

gluster snapshot create snakes zoo no-timestamp使用存储卷创建快照。

[root@serverc ~]# gluster snapshot create snakes zoo no-timestamp
snapshot create: success: Snap snakes created successfully
 

6.配置调度器

gluster volume set all cluster.enable-shared-storage enable启用存储卷共享功能。setsebool -P cron_system_cronjob_use_shares 1开启安全计划功能。snap_scheduler.py init初始化调度器。serverd参照serverc操作。 snap_scheduler.py enable启动调度器。 snap_scheduler.py add animals "0 4 * * *" zoo设置计划参数。

[root@serverc ~]# gluster volume set all cluster.enable-shared-storage enable
volume set: success
[root@serverc ~]# setsebool -P cron_system_cronjob_use_shares 1
[root@serverd ~]# setsebool -P cron_system_cronjob_use_shares 1
[root@serverc ~]# snap_scheduler.py init
snap_scheduler: Successfully initialised snapshot scheduler for this node
[root@serverd ~]# snap_scheduler.py init
snap_scheduler: Successfully initialised snapshot scheduler for this node
[root@serverc ~]# snap_scheduler.py enable
snap_scheduler: Snapshot scheduling is enabled
[root@serverc ~]# snap_scheduler.py add animals "0 4 * * *" zoo
snap_scheduler: Successfully added snapshot schedule
 

7.任务测评

lab snapshots grade进行测评。包括：用户服务功能，创建快照，启用快照，最大快照数，监测触发数，自动删除功能，自动创建功能，调度器启用，调度器配置，克隆等。

[student@workstation ~]$ lab snapshots grade

Grading the student's work:

 · Checking if user-servicable snaps are enabled...............  PASS
 · Checking presence of snakes snapshot........................  PASS
 · Checking if elephants is activated..........................  PASS
 · Checking if snakes is activated.............................  PASS
 · Checking if tigers has been deleted.........................  PASS
 · Checking snapshot hard-limit................................  PASS
 · Checking snapshot soft-limit................................  PASS
 · Checking for auto-delete of snapshots.......................  PASS
 · Checking auto-activation of snapshots.......................  PASS
 · Checking if snapshot scheduling is enabled on serverc.......  PASS
 · Checking if snapshot scheduling is enabled on serverd.......  PASS
 · Checking if animals has been added..........................  PASS
 · Checking if schedule is set correctly.......................  PASS
 · Checking if otters has been created.........................  PASS
 · Checking if otters is active................................  PASS
 · Checking if otters is actually a clone......................  PASS
Overall lab grade..............................................  PASS