Why should a CIO or IT Manager read this Book on “Data Center Storage” ?
The short answer:
The longer answer:
This book is for those motivated to apply financial responsibility when spending on data center storage. The alternatives which exceed business needs, are clear, quantifiable, and understandable by the CIO, and the CFO allowing communication, understanding, agreement and execution.
At risk of ruining the ending …
Replace direct attached storage and compartmentalized storage with consolidated SAN-attached storage. Consolidating direct attached storage into shared storage saves money on backup. Consolidation creates the opportunity to create Tiers. It creates the opportunity to establish SLAs which help identify Tier-1 storage and treat separately from Tier-2 storage. Establish the concept of storage tiering.
Use Service Levels as a clear and simple way to communicate with your business unit customers. Establish service levels and assign Service Levels to applications. Reserve Service Level-1 for only those applications where performance impacts user productivity, where storage performance impacts the company’s ability to earn money. Push all other data to Service Level-2 and Service Level-3 in the interest of avoiding over-spending for storage for non-critical applications.
Use time and data aging as a tool to work in your favor to save money. Push cooler data to affordable capacity-optimized storage. Implement processes to protect data and to clear data off Service Level-1 storage: migrate data as it ages and migrates from performance tier -> to capacity tier -> to archive.
Selectively deploy to managed hosting and cloud storage. Steps 1, 2 and 3 change your storage to allow your company to take advantage of managed hosting and cloud, selectively where it makes sense, efficiently and without excessive risk.
That’s the easy answer.