HP B6960-90078 Medium Header Sanity Check

Troubleshooting

Troubleshooting Devices and Media

• Log sense write report for LTO devices - total data sets processed.

Media ID from tape=0fa003bd:3e0057e6:05b7:0001; Medium Label= ULT2; Logical drive=ultrium1; Errors corrected no delay= 0; Errors corrected delay= 0; Total= 0;Total errors corrected= 0; Total correction algorithm processed= 0; Total bytes processed= 47246; Total uncorrected errors= 0

One data set is 404352 bytes. To calculate the amount of total bytes processed, use the following formula:

47246 data sets * 404352 bytes = 19104014592 bytes after compression a full tape).

• Log sense write report for DDS devices - total groups processed.

Media ID from tape= 0fa0049f:3df881e9:41f3:0001; Medium Label= Default DDS_5; Logical drive= DDS; Errors corrected no delay= -1; Errors corrected delay= -1; Total= -1; Total errors corrected= 0; Total correction algorithm processed= 154; Total bytes processed= 2244; Total uncorrected errors= 0

DDS1/2: One group is 126632 bytes

DDS3/4: One group is 384296 bytes

To calculate the amount of total bytes processed, use the following formula:

2244 groups * 126632 bytes = 284162208 bytes after compression (a 359 MB backup on DDS2).

359 MB of data was backed up, resulting in 271 MB of native data on tape.

	Medium Header Sanity Check
	Data Protector performs a medium header sanity check before a medium
	is ejected from a drive to validate the medium header.
	The medium header sanity check is enabled by default. The global
	variable can be set by uncommenting the following line in the Global
	Options file: Ob2HeaderCheck=1.
Problem	In case the medium header sanity check detects any header consistency
	errors on the medium, an error message is displayed and all the objects
	on the medium are marked as failed.
	If the medium header is corrupt, all objects on the affected medium are
	marked as failed and the medium state is marked as poor.

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