The following figure illustrates the RAID 6 configuration and the table describes the configuration. Each Fibre Channel port on the storage system provides addressing capabilities for up to 2, LUNs across as many as host groups, each with its own LUN 0, host mode, and host mode options. Refer to the following documents for information and instructions about configuring your storage system for open-systems operations: The storage system supports the control unit CU emulation type When your system is configured, the hosts connected to each port are grouped by host group or by target.
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The host modes and host mode options enhance compatibility with supported platforms and environments. For more information about host groups, host modes, and host mode options, see the System Administrator Guide. Disadvantage Requires disk capacity twice as large as the user data.
The RAID 2 is shown by the red rectangles. Users should plan for path failover alternate pathing to ensure the highest data availability.
Array groups and RAID levels. The Provisioning Guide for Mainframe Systems provide instructions for converting single volumes LVIs into multiple smaller volumes to improve data access performance. An array group also called parity group is the basic unit of storage capacity for the storage system. Therefore, data can be assured even when failures occur in up to two disk drives in a parity group.
See the following figure. All drives and device emulation types are supported for LDEV striping. The tables following the figures describe each configuration.
Hardware architecture – Hitachi Vantara Knowledge
When your system is configured, the hosts connected to each port are grouped by host group or by target. It can be installed on a PC, laptop, or workstation.
Each of these array groups can be configured as either x or OPEN-x logical devices. Each Fibre Channel port on the storage system provides addressing capabilities for up to 2, LUNs across as many as host groups, each with its own LUN 0, host mode, and host mode options. Advantage This configuration is highly usable and reliable because of the duplicated data.
RAID 1 is shown by yellow rectangles.
GDPS / Hitachi Virtual Storage Platform G
The SVP obtains storage system configuration and status information and sends user-initiated commands to the storage system. It can provide high reliability and usability at a comparatively low cost by virtue of the parity data. This section provides high-level descriptions of open-systems compatibility, support, and configuration for storage systems.
The parity chunks and data chunks rotate after each stripe. If the workload of one array group is higher than another array group, you can distribute the workload by combining the array groups, thereby reducing the total workload concentrated on each specific array group. For more information about supported operating systems, see the mainframe support matrix on https: The overview describes the architecture of the storage system.
RAID 1 is g1000 usable and reliable because of the duplicated data. The maximum number of LDEVs in this configuration is Mainframe operating system support. After a storage system installation is complete, users can configure the storage system for Mainframe operations. To gain these benefits, this storage system supports RAID levels 1, 5 and 6. LDEV striping can be used with all storage system data management functions. The data is written across the four drives or eight drives in a stripe that has three or seven data chunks and one parity chunk.
After physical installation of the storage system is complete, users can configure the storage system for open-systems operations. In addition to full System Managed Storage SMS compatibility, the storage system provides the g100 functions and support in a Mainframe environment:. Device Manager – Storage Navigator program.
See the following user documents for information and instructions about configuring your storage system for Mainframe operations: