HP LH4r Installation and configuration of the HP NetRAID, NetRAID-1 and NetRAI - Page 17

Chapter 1 Introduction Changing Capacity and RAID Levels HP NetRAID Series adapters can expand capacity and change RAID levels of logical drives without powering down the server. • Online Capacity Expansion: You can add a physical drive to a RAID 0, 3, or 5 logical drive. This can be an online operation if you are running Microsoft Windows NT or Novell NetWare; otherwise, capacity expansion is an offline operation only. (Preparations for capacity expansion must be made, as described in Chapter 6, "Preparing for Online Capacity Expansion.") • Online Capacity Reduction: You can remove a physical drive from a RAID 1, 3, or 5 logical drive as part of an online operation. • Online Changes to RAID Levels: You can convert a RAID 1, 3, or 5 logical drive to RAID 0. NOTE You cannot perform online conversions of logical drives that span arrays (RAID level 10, 30, or 50). About This Guide This guide is intended to be used together with the HP NetRAID Series Installation Road Map. This guide provides detailed explanations of instructions found in the road map.  This HP NetRAID Series Installation and Configuration Guide will help you install your HP NetRAID, HP NetRAID-1, or HP NetRAID-3Si adapter, and plan the configuration. It guides you through power-up, launching the HP NetServer Navigator software, making the initial configuration of the adapter, and installing a NOS-specific configuration utility. It contains a glossary, and its appendices contain sample cabling diagrams and worksheets to use in planning the configuration of physical and logical drives. Fill in the worksheets in Appendix C as you read this guide and make your configuration decisions. The worksheets contain the information you need to enter into the HP NetRAID Assistant configuration utility launched by HP Navigator. The pencil icon in the margin is a reminder to log your configuration choices on the worksheets. 9