GTM-T8Q82GG
Skip to main content

Component redundancy and hot swap, hot expansion

In order to ensure reliable operation and high availability, the ETERNUS DX and ETERNUS AF have a fully redundant configuration and hot maintenance capability. The interconnection of the CMs is duplicated.
A drive enclosure (DE) has also two independent interface ports that are directly connected to two CMs for path redundancy.

The use of redundant components and multiple controller-to-drive connections ensures exceptional reliability. Hardware components supporting hot swap and hot expansion features not only enable firmware upgrades during system operation, but also provide capacity expansion together with the LUN expansion feature where DEs or HDDs are added as needed.

hot swap1

hot swap2

Components for hot swap

ETERNUS DX60 S4
  • CM (Controller Module)
  • IOM (I/O Module)
  • CPSU (CE Power Supply Unit)
  • DPSU (DE Power Supply Unit)
  • HDD
*Note :
  • Memory and BBU (Battery Backup Unit) can be exchanged after CM removed.
  • CPSU/DPSU have fans.
ETERNUS DX100 S4
ETERNUS DX200 S4
  • CM (Controller Module)
  • IOM (I/O Module)
  • CPSU (CE Power Supply Unit)
  • DPSU (DE Power Supply Unit)
  • HDD/SSD
  • FEM (Fan Expander Module)
*Note :
  • CA, Memory and BBU (Battery Backup Unit) can be exchanged after CM removed.
  • CPSU/DPSU have fans.
ETERNUS DX60 S3
  • CM (Controller Module)
  • IOM (I/O Module)
  • CPSU (CE Power Supply Unit)
  • DPSU (DE Power Supply Unit)
  • HDD
*Note :
  • Memory can be exchanged after CM removed.
  • CPSU/DPSU have fans.
ETERNUS DX100 S3
ETERNUS DX200 S3 (Dual controller model)
ETERNUS AF250
ETERNUS DX200F
  • CM (Controller Module)
  • IOM (I/O Module)
  • CPSU (CE Power Supply Unit)
  • DPSU (DE Power Supply Unit)
  • HDD/SSD
  • FEM (Fan Expander Module)
*Note :
  • CA and Memory can be exchanged after CM removed.
  • CPSU/DPSU have fans.
ETERNUS DX500 S3
ETERNUS DX600 S3
ETERNUS AF650
  • CM (Controller Module)
  • IOM (I/O Module)
  • CA (Channel Adaptor)
  • CPSU (CE Power Supply Unit)
  • DPSU (DE Power Supply Unit)
  • HDD/SDD
  • PFM (PCIe Flash Module)
  • FEM(Fan Expander Module)
  • BBU(Bootup and Utility Device)
  • BUD (Bootup and Utility Device)
  • Operation panel
*Note :
  • CM-FAN and Memory can be exchanged after CM removed.
  • CPSU/DPSU have fans.
ETERNUS DX8700 S3
ETERNUS DX8900 S3
  • CM (Controller Module)
  • IOM (I/O Module)
  • CA (Channel Adaptor)
  • CPSU (CE Power Supply Unit)
  • DPSU (DE Power Supply Unit)
  • HDD/SDD
  • PFM (PCIe Flash Module)
  • BBU (Battery Backup Unit)
  • BUD (Bootup and Utility Device)
  • FRT (Frontend Router)
  • SVC (Service Controller)
  • FPSU (FE Power Supply Unit)
  • FANU (Fan Unit)
  • FE MP (FE Mid Plane)
  • FE MP BRG (FE Mid Plane Bridge)
  • System operation panel
  • Operation panel
*Note :
  • CM-FAN and Memory can be exchanged after CM removed.
  • CPSU/DPSU have fans.

Benefits

  • During a failure, components can be exchanged without system down-time
  • Hot expansion provides capacity expansion during system operation
  • Hot swap enables firmware upgrades during system operation

Product Requirements

Supported Storages Hybrid Storage Systems ETERNUS DX60 S4/S3
ETERNUS DX100 S4, DX200 S4
ETERNUS DX100 S3[1], DX200 S3[1]
ETERNUS DX500 S3, DX600 S3
ETERNUS DX8700 S3, DX8900 S3
All-Flash Arrays ETERNUS AF250, AF650
ETERNUS DX200F
  • [1]ETERNUS DX100 S3 and DX200 S3 feature this function when they have dual controllers.

*Note: Products/features/support content introduced on this page may be modified without notice.