Category: SAN

Storage Area Network

HDS definitions of notations

HDS definitions of notations

Hitachi definitions of notations Before going to explorer about Hitachi storage arrays, first let us get some Hitachi data systems definitions of terms. Array Group (Disk feature) – The term used to describe a...

What is hitachi dynamic provisioning?

What is hitachi dynamic provisioning?

Hitachi Dynamic Provisioning (HDP) Dynamic provisioning in Hitachi VSP is works on concept of thin provisioning. Hitachi Dynamic Provisioning (HDP) was introduced on the USP V/VM arrays. It provided a mechanism for grouping multiple...

Hitachi Virtual Storage Platform(VSP) Specifications

Hitachi Virtual Storage Platform(VSP) Specifications

Component Range Capacity Architecture Hitachi Hierarchical Star Network Maximum internal capacity 2.5PB Maximum internal and external capacity 255PB Maximum number of logical volumes 65,280 Cache memory capacity Minimum 128GB Maximum 1TB Cache flash memory...

Symmetrix DMX health check and verification commands

Symmetrix DMX health check and verification commands

Before starting any operation in symmetrix first update the configuration file in management server. To update the configuration database symcfg discover or symcfg disc To list the connected DMX arrays symcfg list To check...

Zero page reclaimation in Hitachi VSP

Zero page reclaimation in Hitachi VSP

You can reclaim pages in a DP-VOL to free pool capacity. If a page assigned to a DP-VOL contains only zero binary data, you can reclaim the page. To reclaim pages in a DP-VOL...