Viewing Shredding Results In The Compressed Files - Hitachi G1000 User Manual

Shredding data verify
error.
No-data assigned.

Viewing shredding results in the compressed files

In the Selected LDEVs table on the Shred LDEVs window, if the Data
Output column is set to YES, the result of shredding a volume can be saved
as files on the computer. Use this file to check the results of shredding a
volume.
You must have the Storage Administrator (Provisioning) role to perform this
task.
1. Navigate to the Reports menu for the storage system:
In Hitachi Command Suite: On the Resources tab, expand the Storage
Systems tree, right-click the target storage system, and then select
Other Functions.
In Device Manager - Storage Navigator (mainframe-only environments):
Display the Device Manager - Storage Navigator main window.
2. On the menu bar, select Reports > Shredding Report, and then click
either Download Latest Report to download the latest result file or
Download Other Reports to download the past ten times result files.
When the preparation for download is complete, a message appears.
3. Click OK.
4. Specify the folder in which to download the file.
5. Click Save.
Compressed files are downloaded.
6. Decompress the file. The binary file showing the results of shredding,
the text file showing the contents of shredding operation, and its result
are output.
Understanding shredding results in compressed files
When you open the compressed file, you see binary and text files that
contain shredding results.
• The name of the binary file indicates LDKC, CU, and LDEV numbers of
the shredded volumes, and the number of times the system wrote
dummy data to the volumes. For example, if a binary file is named 00-
01-11-03.bin, the LDKC number is 00, the CU number is 01, and the
LDEV number is 11. The filename also indicates that the system wrote
dummy data to that volume three times. A binary file contains the first
512 bytes of data of a shredded volume (LDEV).
• The file name of a text file appears as follows:
2–12
Hitachi Virtual Storage Platform G1000 Hitachi Volume Shredder User Guide
Status
An error was detected in the file containing the shredding
results.
When you shred an unused Dynamic Provisioning virtual
volume, no dummy data is written to the volume. In this
case the status of the shredding operation in the shredding
results file is No-data assigned.
Volume Shredder operations
Description