How to Replace a Disk Drive
Use this procedure to replace a failed disk drive in a storage array in a running cluster.
Caution - If you remove any field-replaceable
unit (FRU) for an extended period of time, thermal complications might result.
To prevent this complication, the storage array is designed so that an
orderly shutdown occurs. This shutdown occurs when you remove a component
for longer than 30 minutes. Therefore, a replacement part must be immediately
available before you start an FRU replacement procedure. You must replace
an FRU within 30 minutes. If you do not replace the FRU within this time,
the storage array, and all attached storage arrays, shut down and
power off.
Did the failed disk drive impact the storage array logical volume's availability?
If no, proceed to Step 2.
If yes, remove the logical volume from volume management control.
For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation.
Is the disk drive that you are replacing is a quorum device?
# scstat -q
If no, proceed to Step 3.
If yes, choose and configure another device to be the new quorum device. Remove the old quorum device.
For procedures about how to add and remove quorum devices, see your Sun Cluster system administration documentation.
Replace the disk drive in the storage array.
For the procedure about how to replace a disk drive, see the Sun StorEdge T3 and T3+ Array Installation, Operation, and Service Manual.
If you want this new disk drive to be a quorum device, add the quorum device.
For the procedure about how to add a quorum device, see your Sun Cluster system administration documentation.
Did you remove a LUN from volume management control in Step 1?
If no, you are finished with this procedure.
If yes, return the LUN to volume management control.
For more information, see your Solstice DiskSuite or VERITAS Volume Manager documentation.
How to Replace a Node-to-Switch Component in a Running Cluster
Use this procedure to replace the following node-to-switch components in a running cluster.
Node-to-switch fiber-optic cable
GBIC or an SFP on an FC switch, connecting to a node
On the node connected to the component that you are replacing, determine the resource groups and device groups that are running on the node.
Record this information because you use this information in Step 4 of this procedure to return resource groups and device groups to these nodes.
# scstat
Move all resource groups and device groups off the node.
# scswitch -S -h from-node
Replace the node-to-switch component.
For the procedure about how to replace a fiber-optic cable between a node and an FC switch, see the documentation that shipped with your switch hardware.
For the procedure about how to replace a GBIC or an SFP on an FC switch, see the documentation that shipped with your FC switch hardware.
Return the resource groups and device groups that you identified in Step 1 to the node. This node is connected to the component you replaced.
# scswitch -z -g resource-group -h nodename # scswitch -z -D device-group-name -h nodename
How to Replace an FC Switch or Storage Array-to-Switch Component
Use this procedure to replace an FC switch, or the following storage array-to-switch components in a running cluster.
fiber-optic cable that connects an FC switch to a storage array
GBIC or an SFP on an FC switch, connecting to a storage array
FC switch
Media Interface Adapter (MIA) on a Sun StorEdge T3 storage array. This component does not apply to Sun StorEdge T3+ storage arrays.
Interconnect cables between two interconnected storage arrays of a partner group
Access the storage array. This storage array is connected to the FC switch or component that you are replacing.
View the controller status for the two storage arrays in the partner group.
For more information, see the Sun StorEdge T3 and T3+ Array Administrator's Guide.
Are you replacing an FC switch or component that is attached to a storage array controller that is ONLINE or DISABLED?
If the controller is already DISABLED, skip to Step 5.
If the controller is ONLINE, disable the controller.
For more information, see the Sun StorEdge T3 and T3+ Array Administrator's Guide.
Verify that the controller's state has been changed to DISABLED.
Replace the component by using the following references.
For the procedure about how to replace a fiber-optic cable between a storage array and an FC switch, see the documentation that shipped with your switch hardware.
For the procedure about how to replace a GBIC or an SFP on an FC switch, see the documentation that shipped with your FC switch hardware.
For the procedure about how to replace an FC switch, see the documentation that shipped with your switch hardware.
Note - If you are replacing an FC switch and you intend to save the switch IP configuration for restoration to the replacement switch, wait to connect the cables to the replacement switch. Connect the cables to the replacement switch after you recall the Fabric configuration to the replacement switch. For more information about how to save and recall switch configurations, see the documentation that shipped with your switch hardware.
Note - Before you replace an FC switch, be sure that the probe_timeout parameter of your data service software is set to more than 90 seconds. If you increase the value of the probe_timeout parameter to more than 90 seconds, you avoid unnecessary resource group restarts. Resource group restarts occur when one of the FC switches is powered off.
For the procedure about how to replace an MIA, see the Sun StorEdge T3 and T3+ Array Installation, Operation, and Service Manual.
For the procedure about how to replace interconnect cables, see the Sun StorEdge T3 and T3+ Array Installation, Operation, and Service Manual.
If necessary, access the storage array. This storage array is the storage array in the partner group that is still online.
Enable the storage array that you disabled in Step 3.
For more information, see the Sun StorEdge T3 and T3+ Array Administrator's Guide.
Verify that the controller's state has been changed to ONLINE.