Seagate ST320005SHA10G-RK BlackArmor NAS 440/420 User Guide - Page 31
Creating New Volumes
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Managing BlackArmor Volumes, Shares and Storage This table explains the different levels of RAID supported by your BlackArmor server. Table 1: Supported RAID Levels for Volumes RAID Level of Volume Number of Disk Drives Description Required RAID 0 (Also known as striping) 2 - 4 A volume where data is distributed evenly (striped) across the disk drives in equal-sized sections. A striped volume does not maintain redundant data, and so offers no data protection. RAID 1 2 A volume where one disk drive is a mirror of the (Also known as mirroring) other (the same data is stored on each disk drive). Provides data protection. RAID 5 3 - 4 A volume with RAID 5 uses data striping and parity data to provide redundancy. (Parity is extra information that's used to re-create data if a disk drive fails. In volumes with RAID 5, parity data is striped evenly across the disk drives with the stored data.) RAID 10 4 A volume with RAID 10 is built from two or more equal-sized RAID 0 volumes. Data in a volume with RAID 10 is both striped and mirrored. Span (Also known as a JBODa) a.'Just a Bunch of Disks'. 1 - 4 A group of disk drives in a server, not protected by RAID. Seagate recommends that only users familiar and comfortable with RAID technology make changes to the server's RAID protection. Creating New Volumes As a BlackArmor administrator, you can create all the shares you want in the default volume, or you can create more volumes using BlackArmor Manager. When you create a volume, you can specify: • The size of the volume • The disk drive(s) you want to use • The level of RAID protection it should have (see page 31) You can use the same disk drives in multiple volumes providing there is available space on those drives. For instance, you could use half the space on disk drives 1, 2, and 3 to create Volume A, and the other half of the space on the same disk drives to create Volume B. To create a new volume, open BlackArmor Manager (see page 17). Volumes are in the Storage menu. For more information on volumes, including deleting and modifying volumes, see the online Help. BlackArmor® NAS 440/420 User Guide (Version 3) 32