Thread: [flexbackup-help] writing to `/dev/nst0': Input/output error

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flexbackup-help

[flexbackup-help] writing to `/dev/nst0': Input/output error

From: Michele C. <mi...@pr...> - 2011-03-15 11:58:15

Hi,
I'm in trouble with a 920 internal SAS Hp.
I installed several flexbackup since 2003 with several hardware device 
(DAT scsi/usb, Ultrium2/3/4 , sony ait).
Now I have some problem with this Hp.

With each configuration I have the sam error:
  writing to `/dev/nst0': Input/output error

using tar o afio, compression o not compression.

The mystery is that using the same command used by flexbackup I haven't 
error.
For example if I try to execute this command from shell I have not problem:

cd "/tmp" && /tmp/collectexit.2376.sh find . -depth -xdev ! -type s 
-print0 | /tmp/collectexit.2376.sh tar --create --null --files-from=- 
--ignore-failed-read --same-permissions --no-recursion --totals --label 
"level 0 /tmp Tue Mar 15 12:21:18 2011 tar from server" --verbose 
--sparse -b 64 --file - | /tmp/collectexit.2376.sh dd ibs=32k obs=32k 
conv=noerror,sync of="/dev/nst0"

While using flexbackup I have this error :
dd: writing to `/dev/nst0': Input/output error
dd: closing output file `/dev/nst0': Input/output error

Could someone help me?
Thanks
Michele

Re: [flexbackup-help] _ (9.0) Re: writing to `/dev/nst0': Input/output error

From: Michele C. <mi...@pr...> - 2011-03-15 17:07:23

I can run with success the command within a script.
The user I run flexbackup is root.

I try this using a server with flexbackup working:

#mt -f /dev/nst0 rewind
#dd of=/dev/nst0 if=/tmp/provadd bs=64k
903+1 records in
903+1 records out
59228160 bytes (59 MB) copied, 4.80392 seconds, 12.3 MB
#mt -f /dev/nst0 rewind
#dd if=/dev/nst0 of=/tmp/provadd2 bs=64k
903+1 records in
903+1 records out
59228160 bytes (59 MB) copied, 0.629151 seconds, 94.1 MB/s
#ls -l /tmp/provadd*
-rw-r--r-- 1 root root 59228160 Mar 15 17:29 /tmp/provadd
-rw-r--r-- 1 root root 59228160 Mar 15 17:49 /tmp/provadd2
#mt -f /dev/nst0 rewind
#dd of=/dev/nst0 if=/tmp/provadd bs=64k3327+1 records in
3327+1 records out
218046464 bytes (218 MB) copied, 4.72744 s, 46.1 MB/s
#mt -f /dev/nst0 rewind
#dd if=/dev/nst0 of=/tmp/provadd2 bs=64k
dd: reading `/dev/nst0': Input/output error
dd: closing input file `/dev/nst0': Input/output error

May be a hardware problem?



Making the same commands on the server with flexbackup not working:





TeckniX wrote:
> can you run the same command within a script and see if you get any 
> errors?
> It could be that only your user has read/write to the device?
>
> On Tue, Mar 15, 2011 at 7:31 AM, Michele Cerioni <mi...@pr... 
> <mailto:mi...@pr...>> wrote:
>
>     Hi,
>     I'm in trouble with a 920 internal SAS Hp.
>     I installed several flexbackup since 2003 with several hardware device
>     (DAT scsi/usb, Ultrium2/3/4 , sony ait).
>     Now I have some problem with this Hp.
>
>     With each configuration I have the sam error:
>      writing to `/dev/nst0': Input/output error
>
>     using tar o afio, compression o not compression.
>
>     The mystery is that using the same command used by flexbackup I
>     haven't
>     error.
>     For example if I try to execute this command from shell I have not
>     problem:
>
>     cd "/tmp" && /tmp/collectexit.2376.sh <http://collectexit.2376.sh>
>     find . -depth -xdev ! -type s
>     -print0 | /tmp/collectexit.2376.sh <http://collectexit.2376.sh>
>     tar --create --null --files-from=-
>     --ignore-failed-read --same-permissions --no-recursion --totals
>     --label
>     "level 0 /tmp Tue Mar 15 12:21:18 2011 tar from server" --verbose
>     --sparse -b 64 --file - | /tmp/collectexit.2376.sh
>     <http://collectexit.2376.sh> dd ibs=32k obs=32k
>     conv=noerror,sync of="/dev/nst0"
>
>     While using flexbackup I have this error :
>     dd: writing to `/dev/nst0': Input/output error
>     dd: closing output file `/dev/nst0': Input/output error
>
>     Could someone help me?
>     Thanks
>     Michele
>
>
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