我尝试用这条线进行备份
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
我的备份总大小为 1TB
磁带为 LTO-5 1.5TB（3tb 压缩）
15-30 分钟后给我这个错误
[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)
硬件有问题还是 tar/dd 错误？
答案1
我发现“解决方案”的硬件有缺陷，在我的例子中是 SAS 电缆。更换电缆后工作正常