MetroCluster Service and Expansion Guide
This document is available in PDF format:
- Deciding whether to use the MetroCluster Service Guide
This guide describes how to perform maintenance on the MetroCluster hardware components. - Where to find procedures for MetroCluster maintenance tasks
You should be sure you select the correct procedure when you perform MetroCluster hardware maintenance tasks. - MetroCluster failure and recovery scenarios
You should be aware of how the MetroCluster configuration responds to different failure events. - Performing FC-to-SAS bridge maintenance
If necessary, you can nondisruptively replace the FC-to-SAS bridges or upgrade their firmware in the MetroCluster configuration. - Performing FC switch maintenance and replacement
If necessary, you can non-disruptively replace the FC switches or upgrade their firmware in the MetroCluster configuration. - Performing IP switch maintenance and replacement
If necessary, you can nondisruptively upgrade, downgrade, or replace the IP switches in a MetroCluster configuration. - Adding, removing, or changing ISL ports nondisruptively
You might need to add, remove, or change ISL ports. You can convert dedicated ISL ports to shared ISL ports, or change the speed of ISL ports on a switch. ISLs traveling greater distances might require lower speeds to improve quality. You also might need to increase the speed of ISL ports to take advantage of system upgrades and add ISLs to a Cisco IP switch if you are adding or upgrading hardware. - Identifying storage in a MetroCluster IP configuration
If you need to replace a drive or shelf module, you first need to identify the location. - Hot-adding storage to a MetroCluster FC configuration
You can add storage to a MetroCluster FC configuration without bringing down the system. The procedure you use depends on the type of MetroCluster FC configuration and whether you are adding a single disk shelf to an existing stack or an entire stack. - Hot-removing storage from a MetroCluster FC configuration
You can hot-remove drive shelves—physically remove shelves that have had the aggregates removed from the drives—from a MetroCluster FC configuration that is up and serving data. You can hot-remove one or more shelves from anywhere within a stack of shelves or remove a stack of shelves. - Replacing a shelf nondisruptively in a fabric-attached MetroCluster configuration
You might need to know how to replace a shelf nondisruptively in a fabric-attached MetroCluster configuration. - When to migrate root volumes to a new destination
You might need to move root volumes to another root aggregate within a four-node MetroCluster configuration. - Moving a metadata volume in MetroCluster configurations
You can move a metadata volume from one aggregate to another aggregate in a MetroCluster configuration. You might want to move a metadata volume when the source aggregate is decommissioned or unmirrored, or for other reasons that make the aggregate ineligible. - Renaming a cluster in MetroCluster configurations
Renaming a cluster in a MetroCluster configuration involves making the changes, and then verifying on both the local and remote clusters that the change took effect correctly. - Powering off and powering on a data center
You must know how to power off and power on a data center for the purpose of site maintenance or to relocate a site to another location. - Powering off an entire MetroCluster IP configuration
You must power off the entire MetroCluster IP configuration and all of the equipment before maintenance or relocation can begin. - Powering off an entire MetroCluster FC configuration
You must power off the entire MetroCluster FC configuration and all of the equipment before site maintenance or relocation can begin. - Reconfiguring the FC switch layout
- Port assignments for FC switches
You need to verify that you are using the specified port assignments when you cable the FC switches. - Where to find additional information
You can learn more about configuring, operating, and monitoring a MetroCluster configuration in Lenovo's extensive documentation library. - Contacting Support
You can contact Support to obtain help for your issue. - Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area.
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