Access "Accommodating arrays"
This article is part of the Vol. 3 No. 9 November 2004 issue of Disaster recovery planning options on a shoestring budget
Modern storage arrays offer disk types to meet any need--costly Fibre Channel (FC) disks for high-end applications requiring superior performance and availability, and lower-priced SATA disks for less-critical data. The arrays also come with mixed RAID configurations. But selecting the right mix of disks and RAID levels requires understanding the impact of those decisions. Arrays with mixed RAID support allow users to optimize application cost, performance and availability on a single array. With storage management an ever-escalating cost, the ability to select a single vendor's array to satisfy a multitude of storage scenarios is enticing. In addition to the different types of disk, the new arrays offer simplified management, ease of data migrations from one tier of disk to another, and the ability to increase capacity or improve performance on the fly. Is RAID 5 all you need? RAID 5 provides acceptable levels of protection, performance, availability and capacity for most applications. It's becoming the default standard for Fibre Channel disks, but other ... Access >>>
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Modern storage arrays offer disk types to meet any need -- costly Fibre Channel (FC) disks for high-end applications requiring superior performance and availability, and lower-priced SATA disks for less-critical data. The arrays also come with mixed RAID configurations. But selecting the right mix of disks and RAID levels requires understanding the impact of those decisions.
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