Chapter 3: Building Your Storage Space ● 35Creating Logical DrivesICP Storage Manager has a wizard to help you create (or configure) logical drives, and offerstwo configuration methods to choose from, depending on your needs:● Express configuration (basic)—Automatically creates logical drives by grouping togethersame-sized physical drives, and assigns RAID levels based on the number of physical diskdrives in the logical drive.Use the express method when you want to use all available disk drives in the most efficientmanner. For instructions, see page 35.● Custom configuration (advanced)—Helps you group disk drives, set RAID levels,determine logical drive size, and configure advanced settings manually.Use the custom method when you want to create specific logical drives with any or allavailable disk drives. For instructions, see page 38.Note: ICP recommends that you not combine SAS and SATA disk drives within the same logicaldrive. ICP Storage Manager generates a warning if you try to create a logical drive using acombination of SAS and SATA disk drives.Express Configuration: The Easy WayWhen you use express configuration, ICP Storage Manager automatically creates logical drivesby grouping together same-sized physical disk drives, and assigns RAID levels based on thenumber of physical disk drives in a logical drive:● A logical drive with three or more physical disk drives is assigned RAID 5.● A logical drive with two physical disk drives is assigned RAID 1.● A logical drive with only a single physical disk drive becomes a simple volume, which doesnot offer redundancy.Note: To create a logical drive with any other RAID level, you must use the custom method, asdescribed on page 38. See Selecting the Best RAID Level on page 139 for more information aboutRAID levels.By default, logical drive size is set by ICP Storage Manager and automatically maximizes thecapacity of the disk drives. However, you can choose to specify a size for a logical drive, ifrequired.To build your storage space with the express method:1 In the Enterprise View, select the system you want, then select the controller you want.2 On the toolbar, click Create.
