Hitachi Virtual Storage Platform User Manual

Hitachi VSP User and Reference Guide
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Functional and Operational Characteristics
769 TrueCopy
TrueCopy for
Mainframe
Universal
Replicator
Universal
Replicator for
Mainframe
This mode controls whether the retry operation is
executed or not when a path creation operation is
executed.
(The function applies to both of CU FREE path and
CU single path for Open and Mainframe).
Mode 769 = ON:
The retry operation is disabled when the path
creation operation is executed (retry operation is
not executed).
Mode 769 = OFF (default):
The retry operation is enabled when the path
creation operation is executed (retry operation is
executed).
Notes:
1. This mode is applied when the three conditions
below are met:
 SOM 114 is set to OFF (operation of
automatically switching the port is
disabled).
 HMO 49 and HMO 50 are set to OFF (70-02-
31-00/00 and higher).
 TPC-R is used (it is not applied in normal
operation).
2. When SOM 769 is set to ON, SOM 114, HMO 49
and HMO 50 must not be set to ON.
3. In either of the following cases, the path
creating operation may fail after automatic port
switching is executed.
 SOM 114 is set to ON.
 HMO 49 and HMO 50 are set to ON.
OFF MCU and RCU
Mode Category Description Default MCU/RCU

Hitachi Virtual Storage Platform Specifications

General

Drive Types	SSD, SAS
RAID Support	RAID 1, RAID 5, RAID 6, RAID 10
Connectivity	Fibre Channel, iSCSI, FCoE
Form Factor	Rack-mounted
Category	Enterprise Storage System
Data Reduction	Deduplication and Compression (capabilities vary by model and software version)
Operating System Compatibility	Windows, Linux, UNIX, VMware
High Availability	Redundant components
Scalability	Scale-up and scale-out
Model	Virtual Storage Platform (VSP)