Storage Management Strategies for the CIO
Access "Tracking down those missing bytes"
This article is part of the Vol. 6 No. 10 December 2007 issue of Hot storage technology for 2008
A reader of Storage magazine recently wrote to say he had purchased an Imation Odyssey with 80GB and 160GB cartridges (removable hard disk drives) to back up one of his computers. He was surprised to find several gigabytes of capacity missing. Then he spoke with a storage architect who told him he discovered only 41TB of storage space existed on a new enterprise array that was expected to deliver 45TB. It's a common problem and one that prompts the question: Who took a byte, megabyte, gigabyte or terabyte out of my storage, and where did it go? Should I blame the disk vendors, or the server and software vendors? There are two main reasons for the discrepancy between what's advertised and what you get. One has to do with rounding up numbers and the other with how the storage is configured. Disk drive manufacturers use base 10 (decimal) to count bytes of data, while memory chip, server and operating system vendors typically use base 2 (binary) to count bytes of data. This can lead to confusion when comparing a disk drive base 10GB with a chip memory base 2GB ... Access >>>
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Features
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Run storage as a utility
Converting from a traditional decentralized IT and storage infrastructure to running IT services and storage like a utility isn't a trivial task; it requires a big shift for both business units and IT. But mandates to lower costs and meet compliance requirements will undoubtedly result in an increasing number of organizations opting for centralized storage models with tiered storage offerings.
- Running Fibre Channel over 10Gb Ethernet by Rich Friedman
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VTL data management issues
As disk libraries become the primary backup target for near-term data recoveries, storage managers are exploring new ways to exploit tape's high capacity, low cost and mobility. Disk is the best medium for fast backups and recoveries, and many companies have turned to virtual tape libraries as a way to put disk in their backup process. On the surface, it may seem easy to implement a VTL, but there are many subtle operational issues that must be dealt with to ensure that your data can be recovered quickly when needed.
- Tracking down those missing bytes
- What does your CEO want from storage? by Ellen O'Brien
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Run storage as a utility
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- Old tapes can lead to sticky situations
- Talking up server virtualization, security at SNW
- Snapshot: Will you adopt LTO-4?
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Hot technologies for 2008
Each year, Storage magazine's editors pore through product introductions, study technology developments and ask users about their plans for the coming year to create a short list of must-have technologies for 2008. We think LTO-4, N_Port ID Virtualization, deduplication, ediscovery and green storage can't be ignored, and are likely to impact your storage shop next year.
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Columns
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Green, greener and greenest
Green, greener and greenest
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Hot Spots: The case for unified data management platforms
by Lauren Whitehouse
A unified data management and recovery platform can improve performance, decrease complexity and costs, and make all copies of data more useful and accessible for electronic discovery purposes
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Best Practices: Viewing virtualization from every angle
by Ashish Nadkarni
Virtualization can be a tricky technology for storage managers who need to apply traditional standards while navigating new obstacles. But it's prudent to embrace it now so the storage team can enjoy the same benefits that the systems and applications teams have realized.
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Storage Bin 2.0: Virtualization challenges
by Tony Asaro
Some of the biggest challenges in the data center revolve around backing up and recovering data in a virtual machine environment.
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Green, greener and greenest
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