Sun StorEdge[TM] Enterprise Backup Software: message DRIVE_STATUS_WRITE

Asset ID:	1-72-1018157.1
Update Date:	2011-01-31
Keywords:

Solution Type Problem Resolution Sure

Solution 1018157.1 : Sun StorEdge[TM] Enterprise Backup Software: message DRIVE_STATUS_WRITE_PROTECT

Applies to:

Sun Storage L9 Tape Library
Sun Storage DLT Tape Drive - Version: Not Applicable and later [Release: N/A and later]
All Platforms
Checked for relevance on 31-Jan-2011.

Symptoms

Description
Trying to label or write to a DLT tape IV, in a DLT-1 tape drive (Sun StorEdge[TM] tape autoloader), might fail with the messages:

nsrmmd #1: tape_cdi_open open for READ/WRITE failed: drive status is
DRIVE_STATUS_WRITE_PROTECT
nsrd: Jukebox 'L9' failed: write open error: drive status is
DRIVE_STATUS_WRITE_PROTECT

Cause

Two possible causes :

[1] This might happen when tapes are being (re)used, that were previously written on a DLT4000 or DLT7000 drive. Those tapes are read-compatible with the DLT-1 drive(and thus the label operation can successfully read the original label if there is one present) but not write-compatible.

Solution : ----------

Erase the tape using the dd command :

# dd if=/dev/zero of=/dev/rmt/ (let it run for 30 seconds)

This will overwrite the tape lable with a string of 0s. If you still get the Sun StorEdge Enterprise Backup Software tape label error after running the dd command, try the next step of degaussing the tape.

Degauss the tape media by passing it through a high magnetic field a few times, while turning the tape 90 degrees before each pass.

[2] this is a bad tape

Solution

The issue is seen in Sun StorEdge[TM] Enterprise Backup Software, but is generated by the DLT-1 tapedrive in an L9.

Solution : ----------

Replace the tape volume.

DRIVE_STATUS_WRITE_PROTECT, l9, dlt1, ebs
Previously Published As 81935

Attachments

This solution has no attachment