ETERNUS SF AdvancedCopy Manager V16.9.1 Operation Guide

1.2.1 Device Management Method of AdvancedCopy Manager

AdvancedCopy Manager manages devices (physical disk) in ETERNUS Disk storage system. Each device is managed using its own unique identifier (AdvancedCopy Manager device name). An AdvancedCopy Manager device name must be in the following format:

Table 1.3 AdvancedCopy Manager Device Name

Device Name	Description
g?d?p? or g?d?	Characters "g," "d," and "p" Indicate Following: For ETERNUS Disk Storage Systems (*1) The character "g" indicates a device number, "d" indicates a Logical Unit (LU) number, and "p" indicates a partition number. For Non ETERNUS Disk Storage Systems (*2) The character "g" indicates a fixed value of 0, "d" indicates a serial number used on the server, and "p" indicates a partition number. For Logical Units (Disk Units) A device name of "g?d?" with no "p?" attached indicates a Logical Unit (disk unit).

• About the device name of the ETERNUS Disk storage system regarding the Storage Cluster Continuous Copy function

  The characters "g" and "d" indicate a device number and a Logical Unit(LU) number respectively on Primary Storage.

• About the device name of non ETERNUS Disk storage system <g?d?p?>

  The character "g" is always 0 for non ETERNUS Disk storage system.
  The character "d" indicates an AdvancedCopy Manager specific number that is unique on the server to which devices are connected. This number is different from that used by Disk Management.
  The character "p" follows the same rules as the ETERNUS Disk storage system.

• About unmanaged devices

  For units of partitions, the following devices are not managed.

  • Dynamic volumes

  • Devices mounted at two or more locations

Use this AdvancedCopy Manager device name for operations in AdvancedCopy Manager.

Each device name corresponds to a Volume (partition/logical drive) on Disk Management in Microsoft Management Console (MMC), but does not match a management number on Disk Management. AdvancedCopy Manager displays a block device name in the device list window to show the relationship between an AdvancedCopy Manager device name and a Disk Management name.

A block device name is in the following format:

• disk?p?

  disk?: A physical disk number, i.e., a disk number displayed on Disk Management
  p?: The same value as <p?> in an AdvancedCopy Manager device name

The relationship between the AdvancedCopy Manager device name and the block device name can be referred to using either Web Console or the stgxfwcmdispdev command.

Note

• For information on using disks with a physical size of 2 terabytes and over, refer to "Using large capacity disks" under "15.1.1 General Notes".

• If Logical Unit (disk unit) operations are used, refer to "15.1.1.17 Notes on Executing Logical Unit (Disk) Unit Copy".

• For backup operation and replication operation, dynamic volumes cannot be used.

Target File System

The following file system can be registered in transactions:

• NTFS (NT File System)

• ReFS (Resilient File System)

Note

Any NTFS that is set with the data deduplication function implemented in Windows operating systems cannot be used.