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Hitachi Virtual Storage Platform G800 hardware overview

 

The Hitachi Virtual Storage Platform G800 is a modular, rack-mountable storage system, with various fixed storage capacity configurations of FMD DC2 flash storage devices. To deliver consistent low latency host response times and highest IOP performance across all host connection ports, hard-disk drives are supported in an all-flash configuration.

The storage system contain dual controllers, each controller contains its own processor, dual in-line cache memory modules (DIMMs), cache flash memory (CFM), battery, fans and iSCSI and Fibre Channel I/O modules. Each controller also has an Ethernet connection for out-of-band management. If the data path through one controller fails, all data drives remain available to data hosts using a redundant data path through the other controller.

The storage system can be equipped with embedded network-attached storage (NAS) modules. The NAS modules provide file access through CIFS and NFS protocols and block access by using iSCSI protocols.

All storage system models allow defective drives to be replaced without the interruption of data availability to hosts. A hot spare drive can be configured to replace a failed drive automatically, securing the fault-tolerant integrity of the logical drives. Self-contained, hardware-based RAID logical drives provide maximum performance in compact external enclosures.

Essential hardware components are implemented with a redundant configuration so that the storage system can remain operational if a component fails. Adding and replacing components, along with firmware upgrades, can be conducted while the storage system is active.

Block configuration

 

A storage system configured for block-level storage provides the ability to access and provision raw storage volumes using protocols such as Fibre Channel and iSCSI.

A block configuration consists of the following:

  • Two controllers
  • One or more drive trays
  • Optional service processor (SVP)

 

Unified configuration

 

A unified configuration includes embedded NAS modules that support file system protocols such as CIFS and NFS and operate across a block-level setup using iSCSI or FC connections.

  • Two controllers
  • Two NAS modules for file operations and storage
  • One or more drive trays for block-level storage
  • One 1U block service processor server (SVP)

VSP G800 model

 

The VSP G800 is a highly reliable storage system that offers high storage capacity with full redundancy to better protect data and manage storage operations.

The storage system consists of a 4U enclosure that includes two controllers and two optional NAS modules. Drives are supported using drive trays connected to the controllers. The CBLH can be expanded by mounting a host port expansion chassis.

The storage system supports 512 GB of high-speed cache memory. The DIMMs are arranged as 256 GB per controller. Storage system interfaces are listed in the following table. The maximum number of ports can be increased by connecting a host port expansion chassis.

 

Front end module

Without host port expansion chassis With host port expansion chassis
With HDD Without HDD With HDD Without HDD
10-Gbps iSCSI ports per system 24 32 32 40
8-Gbps Fibre Channel (4-port) per system 48 64 64 80
16-Gbps Fibre Channel (2-port) per system 24 32 32 40
32/16-Gbps Fibre Channel (4-port) per system 48 64 64 80

Controller

Controller chassis

Controller model

Height

Number of drives supported

Supported drive type

CBLH DW800-CBL DW-F800-CTLH 4U (175.0 mm) N/A N/A

Controller

Model number

Description

NAS

DW-F800-NAS

Optional component for block and file storage configuration

Drive tray

Drive tray model name

Support drive type

Numbers of drives supported

Height

DBS
  • DW-F800-DBS (power supply, contains BNST)
  • DW-F800-DBSC
2.5-inch SFF 24 2U (86.2 mm)
DBL
  • DW-F800-DBL (power supply, contains BNST)
  • DW-F800-DBLC
3.5-inch LFF 12 2U (86.2 mm)
DBF
  • DW-F800-DBF
5.25-inch FMD 12 2U (86.2 mm)
DB60
  • DW-F800-DB60 (power supply, contains BNST)
  • DW-F800-DB60C
3.5-inch LFF 60 4U (174.3 mm)

Disk drives

The VSP G800 storage system supports the listed disk drive capacities.

Model number

Drive type

Drive capacity

DKC-F810I-300KCM SFF disk drive 300 GB
DKC-F810I-600JCM SFF disk drive 600 GB
DKC-F810I-1R2JCM SFF disk drive 1.2 TB
DKC-F810I-1R2J5M LFF disk drive 1.2 TB
DKC-F810I-1R8JGM SFF disk drive 1.8 TB
DKC-F810I-1R8J6M LFF disk drive 1.8 TB
DKC-F810I-2R4JGM SFF disk drive 2.4 TB
DKC-F810I-2R4J8M LFF disk drive 2.4 TB
DKC-F810I-4R0H3M LFF disk drive 4 TB
DKC-F810I-6R0H9M LFF disk drive 6 TB
DKC-F810I-10RH9M LFF disk drive 10 TB

Flash module drives

The VSP G800 storage system supports the listed flash module drive capacities.

Model number

Drive type

Drive capacity

DKC-F810I-1R6FN

FMD

1.75 TB (1.6 TiB)
DKC-F810I-3R2FN

FMD

3.5 TB (3.2 TiB)
DKC-F810I-6R4FN

FMD

7 TB (6.4 TiB)
DKC-F810I-7R0FP

FMD

7 TB
DKC-F810I-14RFP

FMD

14 TB

Solid-state drives

The VSP G800 storage system supports the listed SSD capacities.

Model number

Drive type

Drive capacity

DKC-F810I-960MGM

SSD

960 GB
DKC-F810I-1R9MGM

SSD

1.9 TB
DKC-F810I-3R8MGM

SSD

3.8 TB
DKC-F810I-7R6MGM

SSD

7.6 TB

Features

 

The features described in the table are included with VSP G800

Feature

Value

Maximum cache memory supported

512 GB

Maximum number of spare drives

64

Maximum number of RAID groups

480

Maximum volume size

3 TB (4 TB when using the LDEVs of other Storage Systems)

Maximum number of volumes per host groups

2,048

Maximum number of volumes per RAID group

2,048

Maximum number of DP pool volumes

4,096

Maximum number of DP pools

64

Maximum number of iSCSI hosts connected through a network switch

255

Maximum number of Fibre Channel devices connected through a Fibre Channel switch

255

Maximum storage system capacity (physical capacity)

Using 2.4 TB HDD

2,656 TB

Using 10 TB HDD

14,098 TB

Using 7.6 TB SSD

8,711 TB

Using 14 TB FMD

8,106 TB

Scalability

 

All storage systems offer pay-as-you-grow scalability by allowing you to hot-add drives as you need them.

Examples of supported VSP G800 configurations

 

The following table lists the maximum number of drive trays and drives supported in a system configuration. A diskless configuration does not include any drive trays.

Drive tray

Maximum number of drive trays supported

Maximum number of drives supported

SFF drive tray 48 1152 HDDs or SSDs
LFF drive tray 48 576 HDDs or SSDs
FMD drive tray 48 576 HAF flash module drives
Dense intermix drive tray 24 1440 drives

 

NoteIf a drive is inserted into a slot of a dense intermix drive tray when the installed number of drives exceeds 240 slots per path, the drive is blocked.

Maximum number of mounted drive trays

 

The following table lists the maximum number of mountable drive trays and mountable drives for each drive type.

NoteIf a drive is inserted into a slot of a dense intermix drive tray when the installed number of drives exceeds 240 slots per path, the drive is blocked.

 

VSP G800 controller

Drive trays

Maximum number of trays

Maximum number of drives

CBLH

SFF

48

1152 HDDs or SSDs

LFF

48

576 HDDs or SSDs

FMD

48

576 FMDs (HAF)

Dense intermix drive tray

24

1440 HDDs or SSDs1