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Microsoft product screen shots are reprinted with permission from Microsoft Corporation. ii Hitachi Virtual Storage Platform Provisioning Guide for Open Systems Contents Preface . xvii Intended audience. xviii Product version . xviii Document revision level . xviii Changes made in this revision . .xix Referenced documents. .xix Document organization . xx Document conventions. xx Convention for storage capacity values . .xxi Accessing product documentation . xxii Getting help . xxii Comments . xxii 1 Introduction to provisioning . 1-1 About provisioning. 1-3 Basic provisioning . 1-3 Fixed-sized provisioning . 1-3 Disadvantages . 1-5 When to use fixed-sized provisioning. 1-5 Custom-sized provisioning . 1-5 Expanded LU provisioning . 1-6 When to use custom-sized provisioning . 1-7 When to use expanded-LU provisioning . 1-7 Basic provisioning workflow . 1-7 Dynamic Provisioning Overview. 1-8 Dynamic Provisioning. 1-8 Dynamic Provisioning concepts . 1-8 When to use Dynamic Provisioning . 1-9 Dynamic Provisioning advantages . 1-10 Dynamic Provisioning advantage example . 1-10 Dynamic Provisioning work flow . 1-11 Dynamic Tiering . 1-11 Contents iii Hitachi Virtual Storage Platform Provisioning Guide for Open Systems Tiers concept . 1-12 When to use Dynamic Tiering. 1-13 Data retention strategies . 1-13 Resource groups strategies . 1-13 Complimentary strategies. 1-14 Key terms. 1-14 Before you begin. 1-15 About cache management devices . 1-16 Calculating the number of cache management devices required by a DP-VOL . 1-16 Maximum capacity of cache management device . 1-17 Calculating the number of cache management devices required by a volume that is not a DP-VOL. 1-17 Viewing the number of cache management devices . 1-17 2 Configuring resource groups . 2-1 System configuration using resource groups . 2-3 Resource groups examples. 2-3 Example of resource groups sharing a port . 2-3 Example of resource groups not sharing ports . 2-5 Meta_resource . 2-7 Resource lock . 2-7 User groups . 2-7 Resource group assignments . 2-7 Resource group license requirements . 2-8 Resource group rules, restrictions, and guidelines . 2-8 Creating a resource group . 2-9 Adding resources to a resource group . 2-10 Removing resources from a resource group . 2-11 Managing Resource Groups . 2-11 Changing the name of a resource group . 2-11 Deleting a resource group . 2-12 Using Resource Partition Manager and other VSP products . 2-12 Copy-on-Write Snapshot . 2-13 Dynamic Provisioning. 2-13 Encryption License Key . 2-14 High Availability Manager . 2-14 LUN Expansion . 2-15 LUN Manager . 2-15 Performance Monitor . 2-16 ShadowImage. 2-17 Thin Image. 2-17 TrueCopy . 2-17 Universal Replicator . 2-18 Universal Volume Manager . 2-19 Open Volume Management . 2-21 iv Contents Hitachi Virtual Storage Platform Provisioning Guide for Open Systems Virtual Partition Manager . 2-22 Volume Migration. 2-22 Volume Shredder . 2-22 Configuration File Loader . ..