Copy Path

Overview
User Privileges
Display Contents

Overview

This function displays the REC path status between the local and remote storage systems. In this screen, check whether the copy path created with the [Set Copy Path] function is operating properly.

Select the target remote storage system. (Up to 16 storage systems can be registered.) The following items are displayed.

Storage System Information
Advanced Copy Path Status

Caution

The ETERNUS DX60 S5 does not support this function.
After executing the [Set Copy Path] function, make sure to check the copy path status with this function.

Note

This function is displayed only when the Advanced Copy function license or the Storage Cluster function license (*1) has been registered, and when using a storage system model that supports REC.

*1 : The Storage Cluster function license must be registered using ETERNUS SF Storage Cruiser.
The "Priority Level" and the "Multiplicity" settings can be specified for each remote Box ID. Refer to the [Modify REC Multiplicity] function for details.
When the connection type is "Remote", "Line Speed" can be specified for each remote Box ID. Refer to the [Set REC Line Speed] function for details.

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

A list of remote storage systems that are registered in the storage system is displayed.

Local Storage Information

The local storage system information is displayed.

Item	Description
Box ID	The Box ID of the local storage system is displayed.

Remote Storage Information

The remote storage system information is displayed.

Item	Description
Box ID	The Box ID of the remote storage system that has a path to the local storage system is displayed. Click this item to display the [Copy Path Property] Screen.
Connection Type	The type of connection to the remote storage system that has a path to the local storage system is displayed. Direct Remote
Priority Level	When a remote storage system that has a path to the local storage system is connected by direct connection, the priority level is displayed. When the "Connection Type" is "Remote", a "-" (hyphen) is displayed. Automatic REC is performed using the priority level (Automatic Priority/High Priority/Middle Priority/Low Priority/Very Low Priority) that is specified with the [Modify EC/OPC Priority] function. 1 - 8 REC is performed with the displayed priority level. "1" corresponds to "Very Low Priority", and "8" corresponds to "High Priority" for the [Modify EC/OPC Priority] function.
Multiplicity	When a remote storage system that has a path to the local storage system is connected by remote connection, the multiplicity is displayed. When the "Connection Type" is "Direct", a "-" (hyphen) is displayed. Automatic REC is performed with the recommended multiplicity that is calculated by the [Measure Round Trip Time] result. 1 - 1024 REC is performed with the multiplicity that is manually specified with the [Modify REC Multiplicity] function.
Recommended Multiplicity	When a remote storage system that has a path to the local storage system is connected by remote connection, the recommended multiplicity is displayed. When the "Connection Type" is "Direct", a "-" (hyphen) is displayed. 1 - 1024 The recommended multiplicity that is calculated by the [Measure Round Trip Time] result. *** The round trip time is not measured by the [Measure Round Trip Time] function.
Line Speed	When a remote storage system that has a path to the local storage system is connected by remote connection, the line speed (1 to 65535 Mbit/s) is displayed. When the "Connection Type" is "Direct", a "-" (hyphen) is displayed.

[Copy Path Property] Screen

The copy path details between the local and remote storage systems are displayed.

Storage System Information

The information for the storage system is displayed.

Item	Description
Local Storage Box ID	The Box ID of the local storage system is displayed.
Remote Storage Box ID	The Box ID of the selected remote storage system is displayed.
Connection Type	The connection type between the local storage system and the selected remote storage system is displayed. Direct Remote
Priority Level	When the local storage system and the selected remote storage system are connected by direct connection, the priority level is displayed. When the "Connection Type" is "Remote", a "-" (hyphen) is displayed. Automatic REC is performed using the priority level (Automatic Priority/High Priority/Middle Priority/Low Priority/Very Low Priority) that is specified with the [Modify EC/OPC Priority] function. 1 - 8 REC is performed with the displayed priority level. "1" corresponds to "Very Low Priority", and "8" corresponds to "High Priority" for the [Modify EC/OPC Priority] function.
Multiplicity	When the local storage system and the selected remote storage system are connected by remote connection, the multiplicity is displayed. When the "Connection Type" is "Direct", a "-" (hyphen) is displayed. Automatic REC is performed with the recommended multiplicity that is calculated by the [Measure Round Trip Time] result. 1 - 1024 REC is performed with the multiplicity that is manually specified with the [Modify REC Multiplicity] function.
Recommended Multiplicity	When the local storage system and the selected remote storage system are connected by remote connection, the recommended multiplicity is displayed. When the "Connection Type" is "Direct", a "-" (hyphen) is displayed. 1 - 1024 The recommended multiplicity that is calculated by the [Measure Round Trip Time] result. *** The round trip time is not measured by the [Measure Round Trip Time] function.
Line Speed	When the local storage system and the selected remote storage system are connected by remote connection, the line speed (1 to 65535 Mbit/s) is displayed. When the "Connection Type" is "Direct", a "-" (hyphen) is displayed.

Advanced Copy Path Status

Detailed information of copy path is displayed.

Item	Description
Local Port	The port information of the local storage system is displayed. For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4 CE#x CM#y CA#z Port#w For the other models CM#y CA#z Port#w x: CE number y: CM number z: CA number w: Port number
Status	The port path status between the local and remote storage systems is displayed with an icon and a character string. Normal: The copy path is in normal status. Error: The copy path is in error status.
Remote Port WWN / iSCSI Name	The port WWN or iSCSI name of the remote storage system is displayed.
IP Version	When the port type is iSCSI, the IP version for the iSCSI port of the copy path is displayed. A "-" (hyphen) is displayed when the port type is FC. IPv4 IPv6 (Link Local) IPv6 (Connect IP)
IP Address	When the port type is iSCSI, the IP address for the destination port of the copy path is displayed. The display format varies according to the IP version. A "-" (hyphen) is displayed when the port type is FC. For IPv4 address xxx.xxx.xxx.xxx xxx: 0 - 255 (decimal) For IPv6 address xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx xxxx: 0 - ffff (hexadecimal, "a" - "f" are lowercase letters) Refer to "IPv6 Address Notation" for details.
Bandwidth Limit	The bandwidth limit for sending data from the local storage system to the path is displayed. Unlimited 1 - 65535 [Mbit/s]
Detail Information	Detailed information about the copy path is displayed. If an error occurs in the copy path, the error details or location is displayed using the following abbreviations. If there are multiple error locations, multiple abbreviations are displayed. Connectable The copy path is in normal status. Path Unstable The copy path between the local storage system and remote storage system is in unstable status. For example, link-down repeatedly occurs in a certain period of time or communication fails. Bitmap Resolution Mismatched The resolution settings are different between the local and remote storage systems. Suspected Spot (D) The copy path settings may be invalid. Suspected Spot (N) The error is suspected to have occurred in the remote storage system. Suspected Spot (T) The error is suspected to have occurred in the FC-RA port or iSCSI-RA port in the remote storage system. Suspected Spot (C) The error is suspected to have occurred in the cable. Suspected Spot (O) The error is suspected to have occurred in the adapter other than the local storage system and the remote storage system. Suspected Spot (S) The error is suspected to have occurred in the switch or the switch settings. Suspected Spot (I) The error is suspected to have occurred in the FC-RA port or iSCSI-RA port on the local storage system. Suspected Spot (M) The error is suspected to have occurred in the memory.