IBM DS3000 Introduction And Implementation Manual page 562

7065appFC_Example.fm
Once the FlashCopy logical drive is no longer required, disable or delete the FlashCopy
logical drive.
Reusing FlashCopy logical drives
Complete the following steps to create a new point-in-time image of the same base logical
drive.
1. Stop the host application that is accessing the base logical drive
2. Ensure that all data that is related to the base logical drive has been written to disk. In
Windows environments, use the SMrepassist utility to flush all the write buffers from the
base logical disk drive.
SMrepassist -f <filesystem-identifier>
where <filesystem-identifier> is the drive letter assigned to the base logical drive.
3. List all of the mounted logical drives, and locate the disk representing the FlashCopy
logical drive. At the command prompt, type the following command:
mountvol [drive:]path /l
where [drive:]path is the NTFS folder where the mount point resides.
Result: All of the mount logical drives are listed. For more information about using
mountvol, refer to your operating system documentation.
4. Unmount the disk representing the FlashCopy logical drive. At the command prompt, type
the following command and then press Enter:
mountvol [drive:]path /p
where [drive:]path is the NTFS folder where the mount point resides.
Result: The disk is unmounted. For more information about using the mountvol utility, refer
to your operating system documentation.
5. Remove any logical drive-to-LUN mappings for the FlashCopy logical drive. Use the
command:
remove LogicaDrive ["logical drive name"]
where ["logical drive name"] is the flashcopy logical drive name.
6. Disable the FlashCopy logical drive. Enter:
disable flashcopyLogicalDrive
7. Run the SMrepassist utility on the host where the base logical drive is mounted to flush all
the write buffers from the new disk drive.
SMrepassist -f <filesystem-identifier>
where <filesystem-identifier> is the drive letter assigned to the base logical drive.
8. Re-create the FlashCopy logical drive.Enter:
recreate FlashCopy logicalDrive
9. Assign a logical drive-to-LUN mapping between the FlashCopy logical drive and the host
that will access the FlashCopy logical drive.
set LogicalDrive
10.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.
11.Mount the disk representing the FlashCopy logical drive. Enter:
mountvol [drive:]path Logical Drive{GUID}
where [drive:]path is the NTFS folder where the mount point will reside, and Logical
Drive{GUID} is the name of the logical drive that is the target of the mount point in
Logical DriveGUID format.
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IBM System Storage DS3000: Introduction and Implementation Guide
Draft Document for Review August 30, 2007 12:59 am