Hot Preventive Maintenance

Overview

This function replaces the components which may fail, while the storage system is operating.

Replacing maintenance parts can prevent malfunctions.

Availability of Hot Preventive Maintenance (For the ETERNUS DX60 S5, the ETERNUS DX100 S5/DX200 S5, and the ETERNUS AF150 S3/AF250 S3) (Hot preventive maintenance is possible: , Hot preventive maintenance is not possible or not applicable: -)

Component			Hot preventive maintenance
Component			ETERNUS DX60 S5	ETERNUS DX100 S5/DX200 S5	ETERNUS AF150 S3/AF250 S3
Controller Enclosure (CE)			-	-	-
	Controller Module (CM)
		Memory	(*1)	(*1)	(*1)
		BBU	(*1)	(*1)	(*1)
		BUD	(*1)	(*1)	(*1)
	32G FC-CA		-	(*1)	(*1)
		SFP+	-
	16G FC-CA		(*2)	(*1)	(*1)
		SFP+
	8G FC-CA (*3)		(*2)	-	-
		SFP+		-	-
	10G iSCSI-CA		-	(*1)	(*1)
		SFP+	-
	10G Base-T iSCSI		(*2)	(*1)	(*1)
		Port	-	-	-
	1G iSCSI-CA		(*2)	(*1)	-
		Port	-	-	-
	10G NAS-CA		-	(*1)	-
		SFP+	-		-
	1G NAS-CA		-	(*1)	-
		Port	-	-	-
	12G SAS-CA		(*2)	(*1)	-
		SFP			-
	Power Supply Unit (PSU)
	Drive
	Power Cord		-	-	-
	Panel		-	-	-
Drive Enclosure (DE)			-	-	-
	Power Supply Unit (PSU)
	Drive
	Panel		-	-	-
	I/O Module (IOM)
	Fan Expander Module (FEM)		-	(*4)	-
	Power Cord		-	-	-
	SAS Cable

*1	:	When the component is selected for hot preventive maintenance, the CM mounting the component is isolated.
*2	:	To perform a hot preventive maintenance of CA, use the hot preventive maintenance function for the CM that includes the CA.
*3	:	Only for the ETERNUS DX60 S5.
*4	:	A component that is installed in high density DEs.

Availability of Hot Preventive Maintenance (For the ETERNUS DX500 S5/DX600 S5 and the ETERNUS AF650 S3) (Hot preventive maintenance is possible: , Hot preventive maintenance is not possible or not applicable: -)

Component			Hot Preventive Maintenance
Component			ETERNUS DX500 S5/DX600 S5	ETERNUS AF650 S3
Controller Enclosure (CE)			-	-
	Controller Module (CM)
		Memory	(*1)	(*1)
		BUD	(*1)	(*1)
		FAN Unit	(*1)	(*1)
		PCIe SW	-	-
		IOC Port	-	-
		EXP Port	-	-
	32G FC-CA
		SFP+
	16G FC-CA
		SFP+
	10G iSCSI-CA
		SFP+
	1G iSCSI-CA			-
		Port	-	-
	iSCSI-RA
		Port	-	-
	10G NAS-CA			-
		SFP+		-
	1G NAS-CA			-
		Port	-	-
	PCIe Flash Module (PFM)			-
	Controller Enclosure Power Supply Unit (CPSU)
	Operation Panel (OPNL)		-	-
	Battery Unit		-	-
		Battery Control Unit (BCU)
		Battery Unit (BTU)
	Drive
Drive Enclosure (DE)			-	-
	Power Supply Unit (PSU)
	Drive
	Panel		-	-
	I/O Module (IOM)
	Fan Expander Module (FEM)		(*2)	-
	Power Cord		-	-
	SAS Cable

*1	:	When the component is selected for hot preventive maintenance, the CM mounting the component is isolated. If the target component is "BUD", the CM is isolated.
*2	:	A component that is installed in high density DEs.

Availability of Hot Preventive Maintenance (For the ETERNUS DX8100 S4) (Hot preventive maintenance is possible: , Hot preventive maintenance is not possible or not applicable: -)

Component			Hot Preventive Maintenance
Controller Enclosure (CE)			-
	Controller Module (CM)
		Memory	(*1)
		BUD	(*1)
		FAN Unit	(*1)
		PCIe SW	-
		IOC Port	-
		EXP Port	-
	32G FC-CA
		SFP+
	16G FC-CA
		SFP+
	10G iSCSI-CA
		SFP+
	1G iSCSI-CA
		Port	-
	iSCSI-RA
		Port	-
	CEMP		-
	CEMP-D		-
	Controller Enclosure Power Supply Unit (CPSU)
	Operation Panel (OPNL)		-
	Battery Unit		-
		Battery Control Unit (BCU)
		Battery Unit (BTU)
	Power Cord		-
	Drive		(*2)
Drive Enclosure (DE)			-
	Power Supply Unit (PSU)
	Drive
	Panel		-
	I/O Module (IOM)
	Power Cord		-
	SAS Cable

*1	:	When the component is selected for hot preventive maintenance, the CM mounting the component is isolated.
*2	:	A component that is installed in the CE of the ETERNUS DX8100 S4.

Availability of Hot Preventive Maintenance (For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4) (Hot preventive maintenance is possible: , Hot preventive maintenance is not possible or not applicable: -)

Component			Hot Preventive Maintenance
Controller Enclosure (CE)			-
	Controller Module (CM)
		Memory	(*1)
		BUD
		FAN Unit	(*1)
		PCIe SW	-
		IOC Port	-
		BE Port	-
		FRT Port	-
		SVC Port	-
	32G FC-CA
		SFP+
	16G FC-CA
		SFP+
	10G iSCSI-CA
		SFP+
	1G iSCSI-CA
		Port	-
	iSCSI-RA
		Port	-
	CEMP		-
	CEMP-D		-
	PCIe Flash Module (PFM)
	Controller Enclosure Power Supply Unit (CPSU)
	Operation Panel (OPNL)		-
	Battery Unit		-
		Battery Control Unit (BCU)
		Battery Unit (BTU)
	Power Cord		-
	Drive
Frontend Enclosure (FE)			-
	Frontend Enclosure Power Supply Unit (FE PSU)
	Frontend Router (FRT)
		QSFP+
	Service Controller (SVC)
		Port	-
	Management Cable
	FE MP		-
	FE MP BRG		-
	Operation Panel (OPNL)
	FAN Unit (FANU)
	FPO-SW		-
Drive Enclosure (DE)			-
	Power Supply Unit (PSU)
	Drive
	Panel		-
	I/O Module (IOM)
	Fan Expander Module (FEM)		(*2)
	Power Cord		-
	SAS Cable

*1	:	When the component is selected for hot preventive maintenance, the CM mounting the component is isolated.
*2	:	A component that is installed in high density DEs.

Caution

Perform the start maintenance operation by using the [Start/End Maintenance] function before starting hot preventive maintenance. If the operation has not been performed, hot preventive maintenance cannot be started.
Hot preventive maintenance can be performed only on one component at a time.
This function can be performed when the component is in a normal state.
Be sure to use authorized maintenance parts for replacement. If components other than the authorized maintenance parts are used, operation is not guaranteed.
Not all maintenance parts can be replaced by using this function. Refer to the following tables for the availability of hot preventive maintenance for each part.
This function cannot be used under the following conditions:
- The selected component is in the "Error" state
- The selected component is not installed in the storage system (except drives)
- The selected drive is being rebuilt
- A CM, an IOM, a SAS cable, or an FEM#0 is selected on a 1CM model
- A CM-FC (CM with direct mount CA) has been installed in the ETERNUS DX100 S5 and "CA#0" is selected
- A CA is selected from the [Internal Parts] tab in the [Controller Module Detail] screen for the ETERNUS DX60 S5
The Master CM is switched in the following conditions:
- The Master CM is selected
- The selected component is one of the following and the CM, on which the selected component is installed, is a Master CM
  - Memory
  - BUD
  - CA (for the ETERNUS DX100 S5/DX200 S5 and the ETERNUS AF150 S3/AF250 S3)
  - FAN Unit (for the ETERNUS DX500 S5/DX600 S5/DX900 S5, the ETERNUS DX8100 S4/DX8900 S4, and the ETERNUS AF650 S3)

Note

To perform a hot preventive maintenance of CA#0 for the ETERNUS DX100 S5 with a CM-FC (CM with direct mount CA), use the hot preventive maintenance function for the CM.
To perform a hot preventive maintenance of the CA for the ETERNUS DX60 S5 with a CM-FC (CM with direct mount CA), use the hot preventive maintenance function for the CM.

User Privileges

Availability of Executions in the Default Role

Default role	Availability of executions
Monitor
Admin
StorageAdmin
AccountAdmin
SecurityAdmin
Maintainer

Refer to "User Roles and Policies" for details on the policies and roles.

Display Contents

[Test Connection] Screen

This screen is displayed when the Master CM is affected by the hot preventive maintenance.

Follow the displayed procedure to confirm that the new Master CM is connected to a LAN.

Function Button

Button	Description
[Test Connection]	Click this button after confirming that the new Master CM is connected to a LAN. The connection status of the new Master CM and the LAN is checked.

Button

Description

[Test Connection]

Click this button after confirming that the new Master CM is connected to a LAN.

The connection status of the new Master CM and the LAN is checked.

[Test Connection Result] Screen

This screen is displayed when the Master CM is affected by the hot preventive maintenance.

The connection status check result of the new Master CM and the LAN is displayed.

Function Button

Button	Description
[Test Connection]	If connection has failed, reconfirm the new Master CM is connected to a LAN, and click this button. The connection status of the new Master CM and the LAN is checked again.
[Resume Processing]	Click this button when connection was successful. Isolation of the CM starts.

Button

Description

[Test Connection]

If connection has failed, reconfirm the new Master CM is connected to a LAN, and click this button.

The connection status of the new Master CM and the LAN is checked again.

[Resume Processing]

Click this button when connection was successful.

Isolation of the CM starts.

Operating Procedures

Select the component to perform preventive maintenance on, and click [Preventive Maintenance] in [Action].
→ A confirmation screen appears.
Caution
- When there is a component which can be affected by hot preventive maintenance, a message to that effect is displayed. Check the component which might be affected.
Click the [OK] button.
→ The operations to be started and the displayed screen vary depending on the conditions as follows.
- When the Master CM can be affected by the hot preventive maintenance
  
  → The Master CM is switched, and the [Test Connection] Screen appears. Proceed to Step 3.
- When the Master CM cannot be affected by the hot preventive maintenance
  
  → Isolation of the target component starts. Proceed to Step 6.
Follow the displayed procedure to confirm that the new Master CM is connected to a LAN.
After confirming the connection, click the [Test Connection] button.

→ The [Test Connection Result] Screen appears.
Confirm the connection status check result, and click the [Resume Processing] button.
→ Isolation of the target component starts.
Caution
- If the connection of the new Master CM and the LAN fails, check the connection status again and return to Step 4.
Click the [Done] button to return to the screen when the target component was selected in Step 1.
Note
- When performing a hot preventive maintenance for a NAS-CA or a NAS-CA port, the process may take a maximum of 5 minutes to complete. Click the [Done] button and wait for the process to complete. Make sure that the Fault LED (Orange) is on for the relevant target component and then replace the component.