Volume Management
This guide provides the volume operation theories and specifications for the essential data reduction and volume management capabilities of the Storage Virtualization Operating System RF (SVOS RF), including Dynamic Provisioning, Dynamic Tiering, LUN Manager, Universal Volume Manager (external storage).
- Provisioning
- Provisioning is a method or strategy of managing the logical devices (LDEVs), also called volumes, on a storage system. Some provisioning methods are host-based, while other methods use inherent storage system capabilities such as concatenated parity groups. Provisioning methods can also be primarily hardware-based or software-based. Each method has its particular uses and benefits in a specific storage environment, such as optimizing capacity, reliability, performance, or cost. When used in the right scenario, each method can be cost-effective, efficient, reliable, and straightforward to configure and maintain. Your support representatives are available to help you configure the highest quality solution for your storage environment.
- About Dynamic Provisioning
- About LUN Manager, logical units (LUs), and host groups
- About parity groups and volumes
- CCI command reference for provisioning operations
- Configuring Fibre Channel ports
- Configuring host groups
- Configuring iSCSI ports
- Creating and deleting pools
- Creating and deleting volumes
- Creating and managing DP-VOLs
- Finding the WWN of a host bus adapter
- Formatting volumes
- Host modes and host mode options for host groups and iSCSI targets
- Managing and maintaining pools
- Managing iSCSI targets
- Managing MP unit assignment
- Mapping logical volumes to hosts
- Parity groups: creating, formatting, and deleting
- Requirements for Dynamic Provisioning
- Troubleshooting for pools and DP-VOLs
- Using Dynamic Provisioning and Dynamic Tiering with other software products
- Using external volumes larger than 4 TB
- Virtual storage machine operations
- Data Reduction
- Hitachi Storage Virtualization Operating System (SVOS) delivers superior adaptive data reduction and operational efficiency, covering a broad range of efficiency services including thin provisioning, snapshots and linked clones, compression, deduplication, and cloud connect. SVOS adaptive data reduction intelligence is optimized for highest system throughput and response time consistency. The Virtual Storage Platform (VSP) F series all-flash arrays and all-flash configurations of the VSP G series storage systems deliver inline, hardware-accelerated compression to provide system-level storage efficiency savings. In addition, SVOS manages services used based on configuration. If flash modules (FMDs) are detected, FMD compression is used. If encryption is required, SVOS compression is used.
- External Storage
- Hitachi Universal Volume Manager (UVM) enables you to connect volumes in external storage systems to your Hitachi storage system and manage and manipulate the data in your mapped volumes using Hitachi Storage Virtualization Operating System (SVOS) software products and functionality.
- Tiered Storage
- Hitachi Dynamic Tiering (HDT) simplifies storage administration by automatically optimizing data placement in 1, 2 or 3 tiers of storage that can be defined and used within a single virtual volume. Tiers of storage can be made up of internal or external (virtualized) storage, and use of HDT can lower capital costs. Simplified and unified management of HDT allows for lower operational costs and reduces the challenges of ensuring applications are placed on the appropriate classes of storage.