我的磁帶有缺陷還是有其他問題？

我試過用這條線備份

tar cvf - --format posix -b 1024 -X /home/user/altro/file.esclude /home/user | openssl aes-256-cbc -salt  -k "pass" | dd bs=40M of=/dev/st0

我的備份總大小是 1TB

磁帶是 LTO-5 1.5TB（3tb 壓縮）

15-30 分鐘後給我這個錯誤

[mar apr 11 20:40:07 2017] st 9:0:2:0: device_block, handle(0x0009)
[mar apr 11 20:40:07 2017] st 9:0:2:0: [st0] Error e0000 (driver bt 0x0, host bt 0xe).
[mar apr 11 20:40:09 2017] st 9:0:2:0: device_unblock and setting to running, handle(0x0009)
[mar apr 11 20:40:09 2017] st 9:0:2:0: [st0] Error 10000 (driver bt 0x0, host bt 0x1).
[mar apr 11 20:40:09 2017] st 9:0:2:0: [st0] Error on write filemark.
[mar apr 11 20:40:09 2017] st 9:0:2:0: [st0] Error 10000 (driver bt 0x0, host bt 0x1).
[mar apr 11 20:40:09 2017] mpt2sas_cm0: removing handle(0x0009), sas_addr(0x5001438000aa4a64)
[mar apr 11 20:40:09 2017] mpt2sas_cm0: removing : enclosure logical id(0x500605b0080ad4d0), slot(3)
[mar apr 11 20:40:13 2017] scsi 9:0:3:0: Sequential-Access HP       Ultrium 5-SCSI   Z6ED PQ: 0 ANSI: 6
[mar apr 11 20:40:13 2017] scsi 9:0:3:0: SSP: handle(0x0009), sas_addr(0x5001438000aa4a64), phy(3), device_name(0x5001438000aa4a66)
[mar apr 11 20:40:13 2017] scsi 9:0:3:0: SSP: enclosure_logical_id(0x500605b0080ad4d0), slot(3)
[mar apr 11 20:40:13 2017] scsi 9:0:3:0: TLR Enabled
[mar apr 11 20:40:13 2017] st 9:0:3:0: Attached scsi tape st0
[mar apr 11 20:40:13 2017] st 9:0:3:0: st0: try direct i/o: yes (alignment 4 B)

是硬體損壞還是 tar/dd 錯誤？

我發現“解決方案”是有缺陷的硬體，在我的情況下是 SAS 電纜。更換電纜後工作正常

引用自：https://unix.stackexchange.com/questions/358387