• Archiving and data management techniques for compliance and non-compliance data
• Policy-based de-duplication that balances time (transfer rates) and space (reduction ratios)
• Tiered storage, including high-capacity disks for near-line and tape for off-line and archive
• Intelligent power management for servers and storage such as second-generation MAID 2.0
• Various RAID levels to balancing performance (time), availability, capacity (space)
• Measuring efficiency in terms of idle capacity per watt and data reduction ratios.
Additional general tips to boost efficiency include:
• Examine how existing software licenses can be optimized and used more effectively
• Balance time and space to meet different application needs.
Find a balance of Performance, Availability, Capacity, and Energy (PACE) to a given application service requirement, thus aligning the applicable tier of resources to the task at hand. That’s balancing the need for time vs. the need for space for different application or data tiers, which enables you to address and fix problems instead of just moving problems.
By fixing bottlenecks, the result is improved efficiency and optimization. For example, if a storage system has a low utilization to support a performance-sensitive application, then put that application and data on fast storage. Use fast Fibre Channel or SAS disks with cache. An alternative would be to use RAM-based Solid State Disk (SSD) for read- and write-intensive data, or FLASH-based SSD for read-intensive data. Another example is to leverage fast servers to get time-sensitive work done during business hours, and then use available server performance for off-hour IT Infrastructure Resource Management (IRM) tasks, including database or file system maintenance, backups, archiving, or other compute- and resource-intensive tasks. The result is improved efficiency and optimization by more fully using resources.
The bottom line: Common sense combined with best practices can be used to balance PACE to a given service level and cost requirement. After all, it’s about time and space!