Dell PowerVault 100T DDS4 Handbook

Also see for PowerVault 100T DDS4: Manual Compatibility Matrix

Contents

Dell PowerVault 100T DDS4 Handbook Manual pdf 14 page image

Dell DDS/DAT Media Handbook Page 145 Diagnostics5.1 Troubleshooting Cleaning/Read/Write errorsIf Clean, Read, or Write errors are reported by backup software try alternate pieces of media before replacing tapedrives. If there are invalid media errors reported by the drive via the LED/LCD then also try using an alternatepiece of media before replacing the drive.To troubleshoot errors with tape drives, you need to determine the root of the problem. Tape related problems cancome from two primary sources; Media and Hardware. Dell Online PowerEdge Diagnostics can be used undereither Microsoft ® Windows ® or Linux to narrow down the likely cause. This tool can be downloaded for freefrom support.dell.com.Within the Diagnostic tools there is a Media test which can be run in a long test or quick test mode to help withthe diagnosis. The quick test will fill 20 percent of the tape and the long test will write to 80 percent. Reading,writing, spacing, and verifying will all happen during this test so do not use it as a performance tool.Note: The Media test will overwrite data on the tape. Dell suggests using a blank (new) or scratch piece ofmedia. If the intent is to test a specific piece of media then make sure the data contained on that media is backed-up elsewhere. If a failure is seen it is important to run the test on more than one piece of media to narrow theissue down to the drive or the tape media.In the event of a failure complete the following procedure.1. Run the test on one tape. (We suggest running the full test if you think the errors occur later in thebackup – run the short test if errors tend to occur early in the backup)2. If a failure occurs, mark the tape and set it aside.3. Insert another tape and rerun the same test.4. If failure occurs, clean the drive and try a 3rd tape.5. If failures persist, contact Dell Support.5.2 Dell PowerEdge DiagnosticsFigure 14 – Dell Online PowerEdge DiagnosticDell Online PowerEdge Diagnostics can be used to troubleshoot tape drives in Linux and Windows.Note: As of the publication date of this document, a tape device driver must be loaded in Windows devicemanager in order to run Dell PowerEdge Diagnostics Version 2.3. Future version may eliminate thisrequirement.