Tape Libraries - Frequently Asked Questions

Table of Contents

How do I assign barcodes to tapes in a stand-alone library?

To add media identifiers to media that are associated with stand-alone drives:

  1. Make sure that new media is loaded into the stand-alone library drive.
  2. From the CommCell Browser, right-click the appropriate stand-alone library, and then click Stamp Media.
  3. In the Stamp Media dialog box, enter the barcode number or a unique identifier for the media.
  4. Click OK.

    A message appears that tells you that the stamp media was successful.

  5. Click OK.

    The media is listed in the Default Scratch pool.

Can I change a tape's storage policy?

No. Once a storage policy writes to a tape, no other policy can write to that tape. You must wait until the data retention expires, and the tape returns to the Scratch pool.

However, you can use GridStor® to configure your library for alternate data paths. In that situation, if a library fails on one MediaAgent, the MediaAgent will fail over and use the other available libraries.

Can I edit the tape block size at a global level?

You can use the SetFlushBlockSize script to set the block size on all the storage policy copies in your CommCell environment. The block size will be set for the new media. The data will be read from and written to the new media based on the new block size.

  1. Use the qlogin command to log into the CommServe.
  2. On the command line, type the following command to set the tape block size and press Enter.

    qoperation execscript -sn QS_SetFlushBlockSize -si "Recording format name" -si <New flush block size>

    Attribute Description
    Recording format name Media format type. For example, ULTRIUM-V3, ULTRIUM-V4 etc.
    New flush block size Supported block sizes in KB 32, 64, 128, 512, 1024, 2048

Why is exported media from a blind library not delivered to the mail slot?

In blind libraries, the autoloader mail slot is not "seen" by nor is it controlled by SnapProtect software. If you use SnapProtect software to export media from a blind library, the media remains in the slots until you export the media through the front panel of the library manually.