Create FlashCopy Logical Drive Wizard: Additional Instructions for NetWare

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Use the following procedure when creating FlashCopy logical drives on a host running NetWare 5.1 (or higher). Failure to complete the steps listed may result in an inaccurate point-in-time image of the base logical drive.

For a process overview of the FlashCopy logical drive creation process, refer to Create FlashCopy Logical Drive Wizard: Process Overview - NetWare.

FlashCopy logical drives may be reused (for frequent or nightly backups) or may be created for one-time usage (speculative change or upgrade testing). For instructions on how to reuse a disabled FlashCopy logical drive, see Reusing FlashCopy Logical Drives.

Caution: The following restriction applies when attempting to create FlashCopy logical drives on NetWare:

FlashCopy logical drives on NetWare may not be mapped on the same host as the base logical drives.

How to Create a FlashCopy Logical Drive

1

Start the storage management software.

Result: The Enterprise Management Window is displayed.

2

Launch an Subsystem Management Window using one of the following methods:

  • Select the storage subsystem in either the Device Tree View or the Device Table, then select the Manage Device toolbar button, or the Tools >> Manage Device pull-down menu option.
  • Right-click the storage subsystem in the Device Tree View or Device Table, then select Manage Device from the right-mouse pop-up menu.
  • Double-click on a storage subsystem node in the Device Table.
  • Select the storage subsystem in either the Device Tree View or the Device Table, then press Enter.

Result: The Subsystem Management Window is opened in a separate window.

3

Within the Logical pane of the Subsystem Management Window, select a standard logical drive and create a FlashCopy logical drive using one of the following methods:

  • Create FlashCopy Logical Drive Wizard, accessed using an Subsystem Management Window. For more information, see Creating a FlashCopy Logical Drive Using the FlashCopy Logical Drive Wizard.
  • Create a FlashCopy logical drive using either the Script Editor or a command line interface on the host operating system. Type the following command and press Enter:

    create FlashCopyLogicalDrive

    For command reference information on creating a FlashCopy logical drive, refer to "Using the create Command" in the Enterprise Management Window online help.

4

Press Ctrl + Esc and select Server Console.

Result: The server console prompt is displayed.

5

If supported by the operating system, run the hot_add utility (or operating system-specific utility), or reboot the host where the FlashCopy will be used. This will ensure that the host operating system recognizes the FlashCopy logical drive.

Once logical drives have been created and logical drive-to-LUN mappings have been defined, the hot_add utility is run to ensure that the operating system is aware of the newly created logical drives, without having to reboot the host. For information on which operating systems support the hot_add utility, refer to the Storage Manager Software Installation Guide.

6

Important: FlashCopy logical drives on NetWare may not be mapped on the same host as the base logical drive.

Complete the following steps to mount the FlashCopy logical drive to its intended host.

a

At the host prompt, type the following, then press Enter:

nwconfig

Result: The Configuration Options menu is displayed.

b

From the Configuration Options menu, choose Standard Disk Options and then NetWare Logical Drive Options.

c

Select the logical drive you want to mount and press Enter.

Result: The Logical Drive Information screen is displayed.

d

Using the arrow keys, select the Status field.

Result: Depending on the status of the logical drive, this field displays Mounted, Not Mounted, or New.

e

Press Enter to display a menu of available actions.

f

Select Mount and press Enter.

Result: NetWare mounts the selected logical drive.

Important: All I/O activity to the base logical drive should be stopped at this point (or data transfer suspended). This will ensure that an accurate point-in-time image of the base logical drive is captured.

7

Complete the following steps to dismount the base logical drive.

a

From the Configuration Options menu, choose Standard Disk Options and then NetWare Logical Drive Options.

b

Select the logical drive you want to dismount and press Enter.

Result: The Logical Drive Information screen is displayed.

c

Using the arrow keys, select the Status field.

Result: Depending on the status of the logical drive, this field displays Mounted, Not Mounted, or New.

d

Press Enter to display a menu of available actions.

e

Select Dismount and press Enter.

Result: NetWare dismounts the selected logical drive.

8

In the storage management software, re-create the FlashCopy logical drive using one of the following methods:

  • Select the Logical Drive >> FlashCopy >> Re-create pull-down menu option in the Subsystem Management Window. For more information see Re-creating a FlashCopy Logical Drive.
  • Re-create a FlashCopy logical drive using either the Script Editor or a command line interface on the host operating system. Type the following command and press Enter:

    recreateFlashCopy logical drive

    For command reference information on recreating a FlashCopy logical drive, see "Using the recreateFlashCopy Command" in the Enterprise Management Window online help.

9

Return to the server console and remount the base logical drive.

10

Exit all applications and reboot the host operating system.

Important: If I/O activity to the base logical drive was stopped or data transfer was suspended, resume I/O activity to the base logical drive at this time (or re-enable data transfer).

11

Use the FlashCopy logical drive in conjunction with your backup application (reuse of FlashCopy logical drive) or for speculative change and upgrade testing (one-time usage).

For information on reusing a disabled FlashCopy logical drive, see Reusing FlashCopy Logical Drives.

12

Once the FlashCopy logical drive is no longer required, disable or delete the FlashCopy logical drive.

If you disable the FlashCopy logical drive instead of deleting it, you can retain the FlashCopy logical drive and its associated FlashCopy repository logical drive. Then, when you need to create a different FlashCopy of the same base logical drive, you can re-create the disabled FlashCopy logical drive. This takes less time than creating a new FlashCopy logical drive and will stop any reduction in performance that may occur if the FlashCopy logical drive remains available.

For more information, see Disabling a FlashCopy Logical Drive or Deleting a Logical Drive. For command reference information on disabling or deleting a FlashCopy logical drive, refer to the Enterprise Management Window online help.

Reusing FlashCopy Logical Drives

Typically, once a FlashCopy logical drive has been created it would be disabled until a new point-in-time image of the same base logical drive is required. To create a new point-in-time image of the same base logical drive, complete the following steps.

Important: All I/O activity to the base logical drive should be stopped at this point (or data transfer suspended). This will ensure that an accurate point-in-time image of the base logical drive is captured.

1

Complete the following steps to dismount the base logical drive.

a

From the Configuration Options menu, choose Standard Disk Options and then NetWare Logical Drive Options.

b

Select the logical drive you want to dismount and press Enter.

Result: The Logical Drive Information screen is displayed.

c

Using the arrow keys, select the Status field.

Result: Depending on the status of the logical drive, this field displays Mounted, Not Mounted, or New.

d

Press Enter to display a menu of available actions.

e

Select Dismount and press Enter.

Result: NetWare dismounts the selected logical drive.

2

In the storage management software, re-create the FlashCopy logical drive using one of the following methods:

  • Select the Logical Drive >> FlashCopy >> Re-create pull-down menu option in the Subsystem Management Window. For more information see Re-creating a FlashCopy Logical Drive.
  • Re-create a FlashCopy logical drive using either the Script Editor or a command line interface on the host operating system. Type the following command and press Enter:

    recreateFlashCopy logical drive

    For command reference information on re-creating a FlashCopy logical drive, see "Using the recreateFlashCopy Command" in the Enterprise Management Window online help.

3

Press Ctrl + Esc and select Server Console.

Result: The server console prompt is displayed.

4

If supported by the operating system, run the hot_add utility (or operating system-specific utility), or reboot the host where the FlashCopy will be used. This will ensure that the host operating system recognizes the FlashCopy logical drive.

Once logical drives have been created and logical drive-to-LUN mappings have been defined, the hot_add utility is run to ensure that the operating system is aware of the newly created logical drives, without having to reboot the host. For information on which operating systems support the hot_add utility, refer to the Storage Manager Software Installation Guide.

5

Remount the base logical drive.

6

Exit all applications and reboot the host operating system.

Important: If I/O activity to the base logical drive was stopped or data transfer was suspended, resume I/O activity to the base logical drive at this time (or re-enable data transfer).

7

Use the FlashCopy logical drive in conjunction with your backup application (or another application).

8

Once the FlashCopy logical drive is no longer required, disable the FlashCopy logical drive.

If you disable the FlashCopy logical drive instead of deleting it, you can retain the FlashCopy logical drive and its associated FlashCopy repository logical drive. Then, when you need to create a different FlashCopy of the same base logical drive, you can re-create the disabled FlashCopy logical drive. This takes less time than creating a new FlashCopy logical drive, and will stop any reduction in performance that may occur if the FlashCopy logical drive remains available.

For more information, see Disabling a FlashCopy Logical Drive and Re-creating a FlashCopy Logical Drive. For command reference information on disabling and re-creating a FlashCopy logical drive, refer to the Enterprise Management Window online help.

Related Topics

Create FlashCopy Logical Drive Wizard: Additional Instructions

Learn About Creating FlashCopy Logical Drives

Creating a FlashCopy Logical Drive Using the FlashCopy Wizard