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тАО04-11-2017 12:49 PM
тАО04-11-2017 12:49 PM
Linux: is my tape defective or there is another error?
I want to make an encrypted backup
I have this sas controller
06:00.0 Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon] (rev 03)
and this tape drive
[9:0:4:0] tape HP Ultrium 5-SCSI Z6ED /dev/st0 -
Using this cli
tar cvf - --format posix -X /home/user/altro/file.esclude /home/user | openssl aes-256-cbc -salt -k "pass" | dd bs=40M of=/dev/st0
Give me this error after 15-30 minutes
[mar apr 11 21:05:54 2017] st 9:0:3:0: [st0] Block limits 1 - 16777215 bytes. [mar apr 11 21:25:37 2017] st 9:0:3:0: device_block, handle(0x0009) [mar apr 11 21:25:37 2017] st 9:0:3:0: [st0] Error e0000 (driver bt 0x0, host bt 0xe). [mar apr 11 21:25:39 2017] st 9:0:3:0: device_unblock and setting to running, handle(0x0009) [mar apr 11 21:25:39 2017] st 9:0:3:0: [st0] Error 10000 (driver bt 0x0, host bt 0x1). [mar apr 11 21:25:39 2017] st 9:0:3:0: [st0] Error on write filemark. [mar apr 11 21:25:39 2017] st 9:0:3:0: [st0] Error 10000 (driver bt 0x0, host bt 0x1). [mar apr 11 21:25:39 2017] mpt2sas_cm0: removing handle(0x0009), sas_addr(0x5001438000aa4a64) [mar apr 11 21:25:39 2017] mpt2sas_cm0: removing : enclosure logical id(0x500605b0080ad4d0), slot(3) [mar apr 11 21:25:43 2017] scsi 9:0:4:0: Sequential-Access HP Ultrium 5-SCSI Z6ED PQ: 0 ANSI: 6 [mar apr 11 21:25:43 2017] scsi 9:0:4:0: SSP: handle(0x0009), sas_addr(0x5001438000aa4a64), phy(3), device_name(0x5001438000aa4a66)
Is my tape reader broken..or is only a bad command error?
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тАО04-11-2017 01:31 PM
тАО04-11-2017 01:31 PM
Re: Linux: is my tape defective or there is another error?
I've never tried using a command like this to create an encrypted backup. The tape drive has built in encryption and there are SCSI commands that can send an encryption key but I don't know of a Linux utility to send those commands. Maybe sg_raw in sgutils if you want to try building a custom command.
With a quick scan of your command line one thing jumped out at me right away: dd bs=40M of=/dev/st0
That is too large of a blocksize. For tape bs=256K is usually fine, bs=512K is a bit higher performance but there are some HBAs that either don't support that size or require special configurations to support it.
I work for HPE
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тАО04-11-2017 02:13 PM
тАО04-11-2017 02:13 PM
Re: Linux: is my tape defective or there is another error?
On linux there is stenc for hw encryption
I will try later..
Now I'm tryng cpio..but it fails,it rewind tape after 400
-500G(the tape is 1500G not compressed).
I use this cli for cpio
find /mydir|cpio --block-size 1024 -ovc > /dev/st0
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тАО04-11-2017 02:51 PM
тАО04-11-2017 02:51 PM
Re: Linux: is my tape defective or there is another error?
The command
dd if=/dev/st0 of=file ibs=2048k
Stop at 256GB and tape is 1.,5T
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тАО04-11-2017 02:55 PM
тАО04-11-2017 02:55 PM
Re: Linux: is my tape defective or there is another error?
And give error..i forgot
dmesg said
[mar apr 11 23:51:43 2017] st 9:0:0:0: [st0] Sense Key : 0x3 [current] [mar apr 11 23:51:43 2017] st 9:0:0:0: [st0] ASC=0x11 ASCQ=0x0
dd said
dd if=/dev/st0 of=file ibs=2048k dd: errore leggendo '/dev/st0': Errore di input/output 0+438583 record dentro 449108992+0 record fuori 229943803904 bytes (230 GB, 214 GiB) copied, 2072,68 s, 111 MB/s
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тАО04-11-2017 03:12 PM
тАО04-11-2017 03:12 PM
Re: Linux: is my tape defective or there is another error?
[mar apr 11 23:51:43 2017] st 9:0:0:0: [st0] Sense Key : 0x3 [current] [mar apr 11 23:51:43 2017] st 9:0:0:0: [st0] ASC=0x11 ASCQ=0x0
The error you describe is a Medium Error (Sense Key 0x03) and specifically is an unrecovered read error (ASC/ASCQ 0x11/0x00). That points to a problem with the tape, possibly the drive that wrote the tape.
I work for HPE
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тАО04-11-2017 04:36 PM
тАО04-11-2017 04:36 PM
Re: Linux: is my tape defective or there is another error?
Yes I think is defective drive
because I have two lto-5 different tape..
and with both tapes give me errors