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VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Introduction ■ Supported hardware ■ Supported software ■ Dynamic reconfiguration in VCS environment ■ Using VM without DMP enabled ■...
6 VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Introduction Introduction This application note describes how to perform Dynamic Reconfiguration (DR) operations on VCS clustered system domains of the Sun Enterprise 10000 server. The Solaris DR utility enables you to reconfigure the resources of system boards so that the boards can be replaced without system downtime.
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VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Dynamic reconfiguration in VCS environment Dynamic reconfiguration in VCS environment The system board in a domain may contain I/O controllers, CPUs, or memory. Typically, within a domain, system boards have their functions duplicated on other system boards.
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8 VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Dynamic reconfiguration in VCS environment Dynamic Multipathing (DMP) enabled. Dynamic Reconfiguration of I/O boards depends on DMP being configured for the storage. In the example, the system board SB3, which has a disk controller, is to be removed, repaired, and replaced.
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VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Dynamic reconfiguration in VCS environment To verify the board is an I/O board, enter: dr> drshow If the display lists the disks connected to the controller, the system board is an I/O board. If the system board is an I/O board, open another window and log in as root to the domain you are currently reconfiguring.
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10 VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Dynamic reconfiguration in VCS environment Follow the Sun procedure to attach the system board, described here briefly: dr> init_attach Complete the attach operation: dr> complete_attach Verify that the DR attach operation has succeeded. Type: dr>...
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VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Dynamic reconfiguration in VCS environment When you see the message Percent Complete= 100% (0 KBytes remaining) complete the detach operation: dr> complete_detach To verify that the board is no longer configured, type the following command: dr>...
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12 VCS Application Note: Sun Enterprise 10000 Dynamic Reconfiguration Using VM without DMP enabled ser_grp_name # hagrp -unfreeze Repeat for each service group. Verify that VCS is still up and running. Using VM without DMP enabled If you have the Volume Manager DMP feature disabled for some or all of the disks in the shared storage, and you must perform DR operations within the cluster, we recommend using the VCS DiskReservation agent to guard against data corruption.