Restoring Linux or MAC data from successful backup to original location or redirected to another Linux / MAC / Windows location fails with the following error.
Restore- \\server\[ROOT] An unknown error occurred on device "TAPE 1".
V-79-57344-34023 - No data error reading from media.
This issue occurs only when restoring from spanned backup set. If the data selected for restore in on any other media except the first tape then the restore fails. If the data is on the first tape the restore completes successfully.
Following is found in the Bengine.log:
[tpfmt] - TF_NDMPGetResult(): MediaServer thread done, returning TFLE 0xE00084E7
[loops] - BaseBSDProcessor::MessagePumpAndWaitForResults(): TF_NDMPGetResult() returned 0xE00084E7
[tpfmt] - TF_FreeTapeBuffers: from 1 to 0 buffers
[loops] - data halted: SUCCESSFUL
[loops] - BaseBSDProcessor::PollDataServer: Shutting down.
[loops] - RARestoreBSDProcessor: MessagePumpAndWiatForResults() returned -536836889 (0xe00084e7)
[tpfmt] - TF_FreeTapeBuffers: from 0 to 0 buffers
[tpfmt] - TF_CloseSet
Workaround 1 for restoring needed data:
Re-catalog the tapes from which data needs to be restored using the steps provided below:
4. Under Settings Select Catalog.
5. Uncheck the options "Request all media in the sequence for catalog operations" and "Use Storage media-based catalogs"
6. Select the required tape and run the catalog operation
7. Once the catalog is completed, run the restore job.
8. Reset the registry key covered in step 1 back to a value of 1 and recycle Backup Exec services, once restore is completed.
Workaround 2 to prevent this going forward:
1. Split the backup and create multiple jobs in such a way that only a single tape media is used for each backup job.
Symantec Corporation has acknowledged that the above-mentioned issue is present in the current version(s) of the product(s) mentioned at the end of this article. Symantec Corporation is committed to product quality and satisfied customers.
This issue is currently under investigation by Symantec Corporation. Pending the outcome of the investigation, this issue may be resolved by way of a patch or hotfix in current or future revisions of the software. However, this particular issue is not currently scheduled for any release. If you feel this issue has a direct business impact for you and your continued use of the product, please contact your Symantec Sales representative or the Symantec Sales group to discuss these concerns. For information on how to contact Symantec Sales, please see http://www.symantec.com Please be sure to refer back to this document periodically as any changes to the status of the issue will be reflected here.