Software Installation and User’s Guide105ICP RAID ConsoleICPCON then creates and configures the new host drive and adds it to the list on theSelect Host Drive screen (see Figure 10-47). All SCSI parameters are adjusted to theoptimum values.Figure 10-47. Newly Created Host DriveICPCON begins the build process on the new host drive. In the example, it calculates theparity information and writes it to the hard disks. The status during this process is build(for more details regarding the status definitions, refer to Section 10.4.1.2).When the build is successfully finished, the status changes to ready. You can press to refresh the screen and see the updated status of the host drive.The type of initialization build determines how the redundancy information is calculated.There are 2 build types, the Destructive Build and the Non-destructive Build. Onlyavailable if ICPCON is loaded with +, the Destructive Build deletes any databy writing a "0" pattern across all hard disks. This initialization process is very fast sinceno read IOs or parity calculation is involved. However, the initialization build must besuccessfully finished before leaving ICPCON, otherwise the build mode is automaticallychanged to Non-destructive during the next boot. The Non-destructive Build reads thedata blocks, calculates the parity from the contents of the data blocks, and stores it to thecorresponding sectors on the disks. This process takes 5-10 times longer than theDestructive Build typically, but the Non-destructive Build can run in the background, forexample, during the installation of the operating system.Note: After escaping from ICPCON during the first RAID 5 initialization build, ICPCONdisplays the screen shown in Figure 10-48. Although ICPCON indicates the first RAID 5
