Ron’s recent post on choosing the right storage hypervisor points out to ‘comprehensive performance monitoring’ as one of the key capabilities you need to successfully deploy cloud storage. This thought reinforces the need for sophisticated tools that can help you significantly reduce the burden on storage configuring (think of best practices) and performance monitoring.
Bottle neck analysis
It’s no longer the network administrator – when the system response is poor, it’s the storage administrator who gets the call. Especially in a virtualized environment, it is essential to have performance monitoring tools that provide a quick yet comprehensive view of the data path – to ascertain any bottlenecks. With Tivoli Storage Productivity Center, you will be able to see where the bottlenecks have occurred, for example one storage subsystem may be over utilized while another is underutilized.
Data Path Explorer offers detailed view of all the storage entities and their connectivity. It provides you performance information across the entire data path – from host to array – and allows to drill down and view performance metrics at the port-level. Standard Edition, the advanced module within Tivoli Storage Productivity Center, offers advanced reporting capabilities on bottleneck analysis.
According to a storage manager at a leading medical university, “With Tivoli Storage Productivity Center, I can quickly determine if there exists a bottleneck in the SAN infrastructure. Earlier it could take me days or sometimes weeks to figure that out. Now, I can do it in minutes”.
If you have recently deployed Tivoli Storage Productivity Center, make use of IBM’s Value Pack service offerings, which provide analysis of disk subsystem performance bottlenecks using native product tools. Talk to your IBM sales representative or IBM business partner for more information.
Configure your SAN the best practices way
I touched upon the SAN Planner topic briefly in my previous post – and would like to delve little deeper in this one. As mentioned earlier, SAN Planner is a wizard-based tool that assists storage administrators in end-to-end planning involving all storage components and related networks. SAN Planner helps implement best practices pertaining to replication relationships; it utilizes current and historical performance metrics to recommend the best configuration while commissioning new storage systems.
There are three planners associated with recommending storage configuration changes, which are based on current workloads, capacity utilization and best practices:Volume Planner – helps administrators in provisioning storage based on capacity, compression, RAID levels, etc. It includes replication planning as well, supporting sessions such as Metro Mirror, Global Mirror and FlashCopy.
Zone Planner – provides zoning and LUN masking configuration support.
Path Planner – assists in planning and implementing storage provisioning for hosts and storage systems with mutilpath support in fabrics.
All the three planners can be invoked separately or together in an integrated manner from Tivoli Storage Productivity Center console. Learn more about these planners and their capabilities: download the latest Redbooks.
As you can see, configuring SAN with Tivoli Storage Productivity Center is a child’s play, isn’t it? But can you check whether current SAN configuration conforms to best practices? Yes you can!
SAN Configuration Analyzer provides end-to-end check for configuration policies, ensures the correctness of storage network configurations, such as zoning, multipathing and replication. In addition, the tool sends alerts to administrators when the best practices are violated.
Storage networks are undergoing significant changes more often to accommodate changes in business policies and the ever growing data. Administrators are challenged to track configuration changes for problem determination, change management or auditing purposes. Tivoli Storage Productivity Center offers SAN Configuration History Viewer to provide a historic view of changes and eliminate time gap in determining problem areas associated with configuration changes.
To learn more about the IBM Tivoli Storage Productivity Center Select Series, contact your IBM sales representative or IBM Business Partner, or visit ibm.com.
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