NetWorker：磁帶作業失敗，並顯示錯誤：讀取開啟錯誤：命令成功完成 （磁碟機狀態為「媒體載入」或「退出失敗」） 

Summary: 在 NetWorker 中進行磁帶標籤或掛接作業時，程序可能會失敗，並顯示錯誤訊息： 讀取開啟錯誤：命令已成功完成 （磁碟機狀態為「媒體載入」或「退出失敗」）。這表示磁帶機載入或退出媒體時發生問題，通常是由硬體或磁帶媒體問題所造成。

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Symptoms

  • 標記或裝入磁帶磁碟區失敗，並顯示錯誤訊息：
    read open error: command completed successfully (drive status is MEDIA LOAD OR EJECT FAILED)

  • 精靈記錄 （daemon.raw） 在標記或掛載操作期間顯示以下警告和錯誤：
    NSR info media warning: <device_name> opening: MEDIA LOAD OR EJECT FAILED  
nsrd NSR info media warning: <device_name> moving: read open error: command completed successfully (drive status is MEDIA LOAD OR EJECT FAILED)  
nsrd NSR warning Status update: operation 'SNMD_DEVOP_DEACTIVATE', instance '356', on device '<device_name>' has completed abnormally with status 'DEV_OP_ERROR'.
  • 使用 mt 命令顯示資料錯誤，指出可能的硬體或媒體問題：

    mt -f <device_name> status  
<device_name>:  
Current Status: Data error (cyclic redundancy check).

        default blocksize = 65536  
        maximum blocksize = 524288  
        minimum blocksize = 1  
        MaximumPartitionCount = 0  
        EOTWarningZoneSize = 0  
        Error Correction Enabled  
        CompressionEnabled  
        Features:  
                Performs SHORT erase operation  
                Performs LONG erase operation  
                Performs IMMEDIATE erase operation  
                Can report maximum tape capacity  
                Can report amount of tape remaining  
                Support FIXED block length mode  
                Support VARIABLE block length mode  
                Returns errors on write if tape is write-protected  
                Supports hardware data compression  
                Can provide current absolute device block address  
                Can provide current logical block address and partition  
                Can physically load and/or unload tape  
                Support PREVENT / ALLOW Media Removal  
                Performs IMMEDIATE rewind operations  
                Allows Setting FIXED LENGTH or VARIABLE block sizes  
                Performs IMMEDIATE Load / Unload operations  
                Allows hardware data compression to be enabled/disabled  
                Can position tape to an absolute physical block  
                Can position tape to a logical block (and partition)  
                Can position tape to END of RECORDED DATA  
                Can perform tape record positioning (backwards/forwards)  
                Can perform tape file positioning (backwards/forwards)  
                Can move backwards across records or filemarks or setmarks  
                Can write FILEMARKS  
                Performs IMMEDIATE tape mark write operations  
operation status on <device_name> failed: Data error (cyclic redundancy check).  
(Investigate bad media or hardware)
  • 作業系統記錄會報告與磁帶裝置上的媒體載入或退出失敗相關的警告，例如：
    NetWorker media: (warning) rd=dcp-nwsn1.rnp.local:\\.\Tape4 opening: MEDIA LOAD OR EJECT FAILED

Cause

正如錯誤所暗示的那樣，硬體（磁帶機）或磁帶介質問題。

Resolution

交換磁帶機，確認問題是否與特定磁帶機或控制路徑有關。硬體廠商可針對如何處理此情況提供更佳的協助。

Affected Products

NetWorker Family
Article Properties
Article Number: 000334637
Article Type: Solution
Last Modified: 18 Jul 2025
Version:  1
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