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# lspvhdisk0 000345a76cc6fc03 rootvg activehdisk1 000345a72fc97c3c rootvg activehdisk2 none None hdisk3 none None dlmfdrv0 000344b9f4ebfc92 hbvg concurrentdlmfdrv1 000344b9f4ee1d74 dominovg activehdisk8 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=yesdlmfdrv2 已更改2、检查PVIDNode 1# lspvhdisk0 000345a76cc6fc03 rootvg activehdisk1 000345a72fc97c3c rootvg activehdisk2 none None hdisk3 none None dlmfdrv0 000344b9f4ebfc92 hbvg concurrentdlmfdrv1 000344b9f4ee1d74 dominovg activehdisk6 none None hdisk7 none None hdisk10 none None hdisk11 none None dlmfdrv2 000345a70c2be00e None Node 2# lspvhdisk0 000344b96ca1ba08 rootvg activehdisk1 000344b930963e28 rootvg activehdisk2 none None hdisk3 none None dlmfdrv0 000344b9f4ebfc92 hbvg concurrentdlmfdrv1 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VG1、进入C-SPOC # smitty hacmp Initialization and Standard Configuration Extended Configuration System Management (C-SPOC) Problem Determination Tools2、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 Node3、Shared Volume Groups 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 Group5、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 Verification6、选择需要扩容的VGShared Volume Group Names #Resource Group Volume Groupdominorg dominovg#Resource Group Volume Grouphbrg hbvg7、回车，然后选择添加的硬盘Node_a dlmfdrv28、确定无误后，回车继续Resource Group Name dominorgVOLUME GROUP name dominovgReference node Node_a VOLUME names dlmfdrv29、检查两节点PV是否加入VGNode 1# lspvhdisk0 000345a76cc6fc03 rootvg activehdisk1 000345a72fc97c3c rootvg activehdisk2 none None hdisk3 none None dlmfdrv0 000344b9f4ebfc92 hbvg concurrentdlmfdrv1 000344b9f4ee1d74 dominovg activehdisk8 none None hdisk9 none None dlmfdrv2 000345a70c2be00e dominovg activehdisk6 none None hdisk7 none None #Node 2# lspvhdisk0 000344b96ca1ba08 rootvg activehdisk1 000344b930963e28 rootvg activehdisk2 none None hdisk3 none None dlmfdrv0 000344b9f4ebfc92 hbvg concurrentdlmfdrv1 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FS1、进入System Management (C-SPOC) #smitty hacmp Initialization and Standard Configuration Extended Configuration System Management (C-SPOC) Problem Determination Tools2、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 Node3、Shared File Systems Shared Volume Groups Shared Logical Volumes Shared File Systems Synchronize Shared LVM Mirrors Synchronize a Shared Volume Group Definition4、选择JFS2类型 日志文件系统 增强型日志文件系统5、Change / Show Characteristics of a Shared JFS2 Add an Enhanced Journaled File System Add an Enhanced Journaled File System on a Previously Defined Logical Volume List All Shared File Systems Change / Show Characteristics of a Shared Enhanced Journaled File System Remove a Shared File System6、选择需要扩容的文件系统# Resource Group FileSystem dominorg /domino 7、输入文件系统大小Resource Group Name dominorg文件系统名称 /domino新建安装点 [/domino]文件系统的大小 [387618048]安装组 []许可权 读/写安装选项 []是否启动磁盘记帐？ No块大小（字节） 4096是否直接插入日志？ No直接插入日志大小 （MB） 0Node_a: 0516-787 extendlv: Maximum allocation for logical volume fslv01Node_a: is 798.Node_a: cl_rsh had exit code = 1, see cspoc.log and/or clcomd.log for more informationcl_chfs: Error executing chfs -a size="387618048" /domino on node Node_a扩容失败，检查PP SIZE# lsvg dominovg |grep SIZEVG STATE: active PP SIZE: 128 megabyte(s)显然，/domino目录所关联的LV可分配的最大LV数量只有798，798*128=102,因此只能把文件系统扩展到100g多；需要修改LV属性支持更大的文件系统。8、修改LV属性以支持更多的LP Initialization and Standard Configuration Extended Configuration System Management (C-SPOC) Problem Determination Tools 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 Shared Volume Groups Shared Logical Volumes Shared File Systems Synchronize Shared LVM Mirrors Synchronize a Shared Volume Group Definition List All Shared Logical Volumes by Volume Group Add a Shared Logical Volume Set Characteristics of a Shared Logical Volume Show Characteristics of a Shared Logical Volume Change a Shared Logical Volume Remove a Shared Logical Volume“逻辑分区的最大数量”这一栏输入该LV的最大PP数量dominorg fslv01 dominorg loglv01* Resource Group Name dominorg* 逻辑卷名称 fslv01 逻辑卷类型 [jfs2]物理卷位置 中间物理卷范围 最小用于分配的物理卷最大数量 [32] 要将每个逻辑分区副本分配到一个单独的物理卷吗？ 是逻辑分区的最大数量 [2048]读取/写入的“规划策略”逻辑分区副本 parallel 许可权 读/写要启用坏块重定位吗？ 是要启用写入验证吗？ 否 要一致性镜像化写入吗? 主动按照以上方法进入C-SPOC的LVMAdd an Enhanced Journaled File SystemAdd an Enhanced Journaled File System on a Previously Defined LVList All Shared File SystemsChange / Show Characteristics of a Shared Enhanced Journaled File System输入文件系统的大小，然后回车 Resource Group Name dominorg 文件系统名称 /domino 新建安装点 [/domino] 文件系统的大小 [387618048] 安装组 [] 许可权 读/写安装选项 []是否启动磁盘记帐？ No块大小（字节） 4096是否直接插入日志？ No直接插入日志大小 （MB） 0Node_a: Filesystem size changed to 3877109769、检查文件系统大小# df -g文件系统 GB 块 可用 %Used Iused %Iused 安装于/dev/hd4 0.12 0.06 54% 2607 16% //dev/hd2 8.00 3.10 62% 48252 7% /usr/dev/hd9var 3.00 0.92 70% 1195 1% /var/dev/hd3 2.00 1.56 23% 396 1% /tmp/dev/fwdump 0.12 0.12 1% 4 1% /var/adm/ras/platform/dev/hd1 0.12 0.12 1% 49 1% /home/proc - - - - - /proc/dev/hd10opt 1.00 0.89 11% 1405 1% /opt/dev/fslv01 184.88 100.22 46% 4589 1% /domino#至此，VG和FS都已经扩容完成。
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