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New_in_linux 04-25-2014 05:18 AM

Not able to take backup of file size more than 1MB in tape
 
Hi All,

i am using HP LTO3 for data backup in tape but when i taking backup of more than 1MB files(using tar-1.23) its showing me the following error:

xyz@localhost# tar -cvf /dev/nst0 file1.tar
file1.tar
tar: /dev/nst0: Cannot write: Input/output error
tar: Error is not recoverable: exiting now

Please help me guys and thanks in advance..!!!!

TenTenths 04-25-2014 06:24 AM

What's the output of
Code:

mt -f /dev/st0 status

New_in_linux 04-25-2014 07:22 AM

@TenTenths thanks for the quick reply...out of mt -f /dev/nst0 status

mt -f /dev/st0 status

SCSI 2 tape drive:
File number=0, block number=0, partition=0.
Tape block size 0 bytes. Density code 0x44 (LTO-3).
Soft error count since last status=0
General status bits on (41010000):
BOT ONLINE IM_REP_EN

TenTenths 04-25-2014 07:26 AM

Ok so you are using tar to create file1.tar and then attempting to send that to the tape?

Have you tried using /dev/st0 instead of /dev/nst0 ?

New_in_linux 04-25-2014 07:33 AM

@TenTenths yes i tried that also it is showing the same error.

in dmesg i am getting this error

st0: Sense Key : Aborted Command [current]
st0: Add. Sense: Information unit iuCRC error detected


and

st0: <<vendor>> ASC=0xff ASCQ=0xffASC=0xff <<vendor>> ASCQ=0xff
Errata on LSI53C1030 occurredsc->req_bufflen=0x2800, xfer_cnt=0x00,difftransfer= 0x1400
st0: Sense Key : Medium Error [current]
Info fld=0x1400



output of cat /proc/scsi/scsi

Attached devices:
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: NECVMWar Model: VMware IDE CDR10 Rev: 1.00
Type: CD-ROM ANSI SCSI revision: 05

Host: scsi2 Channel: 00 Id: 00 Lun: 00
Vendor: VMware Model: Virtual disk Rev: 1.0
Type: Direct-Access ANSI SCSI revision: 02

Host: scsi2 Channel: 00 Id: 01 Lun: 00
Vendor: HP Model: Ultrium 3-SCSI Rev: G54W
Type: Sequential-Access ANSI SCSI revision: 03

Host: scsi2 Channel: 00 Id: 02 Lun: 00
Vendor: HP Model: 1x8 autoloader Rev: 1.50
Type: Medium Changer ANSI SCSI revision: 03

TenTenths 04-25-2014 07:46 AM

Strange, that all looks normal to me.

New_in_linux 04-25-2014 07:52 AM

@TenTenths did you get something(i mean what is error)from the output of dmesg..?????

jefro 04-25-2014 02:42 PM

Note that may or may have no help.
Some of those tapes need to be initialized and for lack of the correct word, homed.

New_in_linux 04-28-2014 02:07 AM

@jefro thanks for your reply.

can you tell me how to initializad hp LTO-3 tape drive..????


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