Disk management msc12/20/2023 The primary GUI for managing disks in Windows Server 2008 is the Disk Management console, Diskmgmt.msc, shown in Figure 19-1, which can be run stand-alone or as part of Server Manager. However, most serious servers should be using hardware RAID. It doesn’t cover all the possibilities by any means, but it is certainly sufficient for some purposes. Windows Server 2008 includes an excellent and flexible implementation of RAID levels 0, 1, and 5 in software. Hardware RAID is generally substantially more expensive than the software RAID built into Windows Server 2008, though many manufacturers today include basic hardware RAID capabilities on the motherboard. Additionally, most server-class hardware RAID controllers offer additional RAID levels when compared to software RAID, providing redundancy advantages such as multiple disk failure protection. The combination of a separate, dedicated processor and a separate, dedicated cache provides a substantial performance advantage over software RAID. Additionally, many hardware RAID controllers include a substantial dedicated RAM cache, often with a battery backup. Processing for the RAID array is handled by a separate processor built into the RAID controller, offloading the work from the computer’s CPU. When implemented at the hardware level, the hardware vendor provides an interface to administer the arrays and the drivers to support the various operating systems it might need to work with. You can implement RAID at a software or hardware level. Moreover, this protection costs much less than those big server drives did. Backups are still crucial, but now you can use one form or another of RAID to provide substantial protection from hard disk failure. In the past, most server systems relied on expensive, higher-quality hard disks-backed up frequently. Fifteen years ago, RAID was mostly unheard of, although the original paper defining RAID was written in 1988. RAID (redundant array of independent disks) is a term used to describe a technique that has gone from an esoteric high-end solution to a normal procedure on most servers.
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