Fibre vs Fiber in SAN

Fibre vs Fiber: Fibre Channel was basically designed to support fiber optic cabling only. But  industry also started using copper cables later to avoid the damage due to heat produced in storage systems. The...

Symmetrix DMX health check and verification commands

To check reserved devices symdev –sid 547 list –reserved To check symmetrix external locks symcfg –sid  547 list –lockn all To check symmetrix device locks symdev –sid 547 list –lock To check available free...

Zero page reclaimation in Hitachi VSP

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

Hitachi VSP Introduction

Hitachi Virtual Storage Platform (VSP): The Hitachi Virtual Storage Platform(VSP ) is a high-capacity, high performance, large-scale, enterprise-class SAN storage system. The main advantage of Hitachi Virtual storage platform (VSP) is it’s 3D scaling...

How to expand LDEV capacity in Hitachi VSP

In the Storage Navigator main window, in the Storage Systems tree, select Pool. The pool name appears below Pool. Select the pool associated with the DP-VOL that has the capacity that you want to...

DP pools status in Hitachi VSP

DP pools status in Hitachi VSP Status Explanation SIM code Normal Normal status. None Warning A pool volume in the pool is blocked. If the pool volume is blocked, SIM code 627XXX is reported....

HBA parameters for connecting to Hitachi VSP

The min requirements for configuring the adapters for operation with the Hitachi RAID storage system are I/O timeout value (TOV) The disk I/O timeout value (TOV) is 60s for the Hitachi storage system. Queue...