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一、C-SPOC介绍
为方便管理集群中的操作,HACMP 提供了一种方法,通过该方法可以在多个集群节点执行命令并维护要执行操作之间的协调。
一些集群维护操作可能影响 HACMP 配置(拓扑和资源),但通过 HACMP 系统管理工具 (C-SPOC),无需停止关键作业即可执行这些任务(如添加或删除资源、用户和更改拓扑元素)。 注意:C-SPOC 使用一种新的集群通信守护进程 (clcomdES) 在远程节点上执行命令。如果此守护进程没有运行或者无法验证来自发起者节点的请求,将不会执行远程节点上的命令,因此 C-SPOC 操作将会失败。
使用 C-SPOC 实用工具,在一个节点(发起更改的节点)上执行的命令也会在其他集群节点上执行。C-SPOC 最大限度地减少了管理开销,并降低了节点状态不一致的可能性 以下我们将利用C-SPOC功能来在线添加PV及扩展FS。
二、创建PV 1、创建PV
用命令Cfgmgr –v及/usr/DynamicLinkManager/bin/dlmcfgmgr配置LUN; 其中dlmfdrvX就是HDLM封装的为设备 # lspv
hdisk0 000345a76cc6fc03 rootvg active hdisk1 000345a72fc97c3c rootvg active hdisk2 none None hdisk3 none None
dlmfdrv0 000344b9f4ebfc92 hbvg concurrent dlmfdrv1 000344b9f4ee1d74 dominovg active hdisk8 none None hdisk9 none None dlmfdrv2 none None hdisk6 none None hdisk7 none None
在两个节点分别创建PV
# chdev -l dlmfdrv2 -a pv=yes dlmfdrv2 已更改
2、检查PVID Node 1 # lspv
hdisk0 000345a76cc6fc03 rootvg active hdisk1 000345a72fc97c3c rootvg active hdisk2 none None hdisk3 none None
dlmfdrv0 000344b9f4ebfc92 hbvg concurrent
dlmfdrv1 000344b9f4ee1d74 dominovg active hdisk6 none None hdisk7 none None hdisk10 none None hdisk11 none None dlmfdrv2 000345a70c2be00e None Node 2 # lspv
hdisk0 000344b96ca1ba08 rootvg hdisk1 000344b930963e28 rootvg hdisk2 none None
hdisk3 none None
dlmfdrv0 000344b9f4ebfc92 hbvg dlmfdrv1 000344b9f4ee1d74 dominovg hdisk6 none None hdisk7 none None hdisk8 none None hdisk9 none None dlmfdrv2 000345a70c2be00e None
输出显示两个节点的PVID已经生成。 三、使用C-SPOC功能扩展VG 1、进入C-SPOC
# smitty hacmp
? Initialization and Standard Configuration ?Extended Configuration
?System Management (C-SPOC) ? Problem Determination Tools
2、HACMP Logical Volume Management ?Manage HACMP Services
?HACMP Communication Interface Management
?HACMP Resource Group and Application Management ?HACMP Log Viewing and Management ?HACMP File Collection Management ?HACMP Security and Users Management ?HACMP Logical Volume Management ?HACMP Concurrent Logical Volume Management ?HACMP Physical Volume Management ?Configure GPFS
? Open a SMIT Session on a Node
3、Shared Volume Groups
active active concurrent ? Shared Volume Groups
?Shared Logical Volumes ?Shared File Systems
?Synchronize Shared LVM Mirrors ?Synchronize a Shared Volume Group Definition
4、Set Characteristics of a Shared Volume Group ?List All Shared Volume Groups ?Create a Shared Volume Group ?Create a Shared Volume Group with Data Path Devices ?Set Characteristics of a Shared Volume Group ?Import a Shared Volume Group ?Mirror a Shared Volume Group ?Unmirror a Shared Volume Group
5、Add a Volume to a Shared Volume Group ? Add a Volume to a Shared Volume Group ?
Remove a Volume from a Shared Volume Group ?Enable/Disable a Shared Volume Group for Cross-Site LVM Mirroring Verification
6、选择需要扩容的VG
Shared Volume Group Names #Resource Group Volume Group dominorg dominovg #Resource Group Volume Group hbrg hbvg
7、回车,然后选择添加的硬盘 Node_a dlmfdrv2
8、确定无误后,回车继续
Resource Group Name dominorg VOLUME GROUP name dominovg Reference node Node_a VOLUME names dlmfdrv2
9、检查两节点PV是否加入VG Node 1 # lspv
hdisk0 000345a76cc6fc03 rootvg active hdisk1 000345a72fc97c3c rootvg active hdisk2 none None hdisk3 none None
dlmfdrv0 000344b9f4ebfc92 hbvg concurrent dlmfdrv1 000344b9f4ee1d74 dominovg active hdisk8 none None hdisk9 none None dlmfdrv2 000345a70c2be00e dominovg active hdisk6 none None hdisk7 none None # Node 2
# lspv
hdisk0 000344b96ca1ba08 rootvg active hdisk1 000344b930963e28 rootvg active hdisk2 none None hdisk3 none None
dlmfdrv0 000344b9f4ebfc92 hbvg concurrent dlmfdrv1 000344b9f4ee1d74 dominovg hdisk6 none None hdisk7 none None hdisk8 none None hdisk9 none None
dlmfdrv2 000345a70c2be00e dominovg
其中Node 1是主节点,Node 2是备节点;
从以上输出信息可以知道dlmfdrv2已经添加到dominovg中,VG的信息已经自动同步;由于Node 1是主节点,因此dlmfdrv2在该节点是active的。 四、使用C-SPOC功能扩展FS 1、进入System Management (C-SPOC) #smitty hacmp
?Initialization and Standard Configuration
Extended Configuration
System Management (C-SPOC) Problem Determination Tools
2、HACMP Logical Volume Management ?Manage HACMP Services
HACMP Communication Interface Management HACMP Resource Group and Application Management HACMP Log Viewing and Management HACMP File Collection Management HACMP Security and Users Management HACMP Logical Volume Management HACMP Concurrent Logical Volume Management HACMP Physical Volume Management
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