The Best Damn Windows Server 2003 Book Period- P19:The latest incarnation of Microsoft’s server product,Windows Server 2003, brings many new features and improvements that make the network administrator’s job chapter will briefly summarize what’s new in 2003 and introduce you to the four members of the Windows Server 2003 family: the Web Edition, the Standard Edition, the Enterprise Edition, and the Datacenter Edition.:The latest incarnation of Microsoft’s server product,Windows Server 2003, brings many new features and improvements that make the network administrator’s job chapter will briefly summarize what’s new in 2003 and introduce you to the four members of the Windows Server 2003 family: the. | 146 Chapter 5 Managing Physical and Logical Disks Figure Synchronizing a Mirrored Volume Creating and Using RAID-5 Volumes RAID-5 volumes can be created using three to 32 disks. The parity information can be used to regenerate the missing data should one disk fail. If you lose more than one disk however all your data will be lost. As with mirrored volumes RAID-5 volumes cannot be extended. However RAID-5 volumes offer more efficient disk utilization than mirrored lose the storage space equivalent to one disk in the RAID-5 volume because it is used for parity information. For example if you have five disks and you lose the storage space of one disk you operate at 80 percent disk utilization. If you increase the number of disks in your RAID-5 volume you will get even better disk utilization. For example if you use 10 disks instead of five you will operate at 90 percent utilization instead of 80 percent utilization. On the other hand it takes longer to get your system back up and running after a disk failure with RAID-5 as opposed to mirrors because you must go through the process of regenerating the data from parity. Use RAID-5 volumes in the following situations You need the boosted read performance of a striped volume but you must have fault tolerance. You want fault tolerance with the most efficient level of disk utilization possible. You need fault tolerance but you have too many disks to use a mirror. Creating a RAID-5 volume 1. Right-click the unallocated space on the disk on which you want to create a RAID-5 volume. 2. Click New Volume on the context will start the New Volume Wizard as shown in Figure . 3. Click Next to continue. Managing Physical and Logical Disks Chapter 5 147 Figure Using the New Volume Wizard to Create a RAID-5 Volume 4. In the Select Volume Type window Figure select RAID-5. 5. Click Next to continue. Figure Selecting to Create a RAID-5 Volume 6. You will next be prompted to select the disks to
