request vmhost snapshot
语法
request vmhost snapshot <partition> <re0 | re1> <recovery> <routing-engine>
描述
在备份磁盘上创建当前运行的活动文件系统分区的恢复快照,以便在出现故障时恢复主磁盘。
在设备上,备份主机 OS 映像的快照以及 Junos OS 映像。如果主磁盘出现故障,可从备份磁盘中的可用映像启动,然后使用 选项 recovery
创建的快照恢复主磁盘。
选项
无 — 在不分区目标磁盘的情况下,从当前磁盘创建到目标磁盘的快照。目标磁盘上的内容丢失。
partition |
(可选)从当前磁盘创建快照,以定位磁盘并分区目标磁盘。目标磁盘上的内容丢失 |
re0 | re1 | (可选)从当前磁盘创建快照以定位磁盘,并分区插槽 0 ( 对于 PTX1000 路由器,由于只有一个 RE,因此不支持 re0|re1。
注意:
QFX10002-60C 和 PTX10002-60C 设备没有主路由引擎和备份路由引擎。 |
recovery | (可选)从存储在备份磁盘中的快照内容中恢复主磁盘。此选项仅在从备份磁盘启动路由引擎时才适用。主磁盘中的内容将丢失。 |
routing-engine | (可选)指定要创建快照的路由引擎。提供以下选项:
|
所需权限级别
维护
示例输出
请求 vmhost 快照
user@host> request vmhost snapshot warning: Existing data on the target may be lost Proceed ? [yes,no] (no) yes warning: Proceeding with vmhost snapshot Current root details, Device sda, Label: jrootb_P, Partition: sda4 Snapshot admin context from current boot disk to target disk ... Proceeding with snapshot on secondary disk Mounting device in preparation for snapshot... Cleaning up target disk for snapshot ... Creating snapshot on target disk from current boot disk ... Snapshot created on secondary disk. Software snapshot done
请求 vmhost 快照恢复
user@host> request vmhost snapshot recovery warning: Existing data on the target may be lost Proceed ? [yes,no] (no) yes warning: Proceeding with vmhost snapshot Current root details, Device sdb, Label: jrootb_S, Partition: sdb4 Snapshot admin context from current boot disk to target disk ... Proceeding with snapshot on primary disk Mounting device in preparation for snapshot... Cleaning up target disk for snapshot ... Creating snapshot on target disk from current boot disk ... Primary disk is recovered now. Please issue "request vmhost reboot" to boot from the primary disk. Software snapshot done
发布信息
在 Junos OS 15.1F3 版中引入的命令。
注意:
PTX3000 路由器支持路由和控制板 RCBPTX。