Am 10.03.20 um 20:50 schrieb Pierre Bernhardt:
> Am 10.03.20 um 15:13 schrieb Martin Simmons:
>> On Tue, 10 Mar 2020 09:26:20 +0100, Pierre Bernhardt said:
>> Also, you might try using smartctl to get information about error rates from
>> the drive. Something like:
>>
>> smartctl -a -d scsi -T permissive /dev/nst0
> Oh, thats new for me ;-)
>
> root@backup:~# smartctl -a -d scsi -T permissive
> /dev/tape/by-id/scsi-HU1914570A-nst
> smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.19.0-8-amd64] (local build)
> Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
>
> === START OF INFORMATION SECTION ===
> Vendor: HP
> Product: Ultrium 4-SCSI
> Revision: V67B
> Logical Unit id: 0x2001000e11129ae5
> Serial number: HU1914570A
> Device type: tape
> Transport protocol: Fibre channel (FCP-2)
> Local Time is: Tue Mar 10 20:33:02 2020 CET
> Temperature Warning: Disabled or Not Supported
>
> === START OF READ SMART DATA SECTION ===
> TapeAlert Supported
> TapeAlert: OK
> Current Drive Temperature: 31 C
> Drive Trip Temperature: <not available>
>
> Error counter log:
> Errors Corrected by Total Correction Gigabytes
> Total
> ECC rereads/ errors algorithm processed
> uncorrected
> fast | delayed rewrites corrected invocations [10^9 bytes]
> errors
> read: 0 0 0 0 0 0.000
> 0
> write: 155217 1 1 1 21869758 0.000
> 0
>
> Device does not support Self Test logging
>
The Backup on the other drive has been filled the tape up to 750 GiByte. Thats
better
than before. So maybe it is really any drive problem.
Here the smartctl of the drive 1 which looks like better:
*list volume=LTO40035
+---------+------------+-----------+---------+-----------------+----------+--------------+---------+------+-----------+-----------+---------+----------+-------------+
| mediaid | volumename | volstatus | enabled | volbytes | volfiles |
volretention | recycle | slot | inchanger | mediatype | voltype | volparts |
expiresin |
+---------+------------+-----------+---------+-----------------+----------+--------------+---------+------+-----------+-----------+---------+----------+-------------+
| 470 | LTO40035 | Full | 1 | 812,948,161,536 | 813 |
473,040,000 | 1 | 10 | 1 | LTO-3 | 2 | 0 |
473,000,399 |
+---------+------------+-----------+---------+-----------------+----------+--------------+---------+------+-----------+-----------+---------+----------+-------------+
That is the stored volume which I want on tapes.
root@backup:~# smartctl -a -d scsi -T permissive
/dev/tape/by-id/scsi-HU19145705-nst
smartctl 6.6 2017-11-05 r4594 [x86_64-linux-4.19.0-8-amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Vendor: HP
Product: Ultrium 4-SCSI
Revision: V67B
Logical Unit id: 0x2004000e11129ae5
Serial number: HU19145705
Device type: tape
Transport protocol: Fibre channel (FCP-2)
Local Time is: Fri Mar 13 06:37:45 2020 CET
NO tape present in drive
Temperature Warning: Disabled or Not Supported
=== START OF READ SMART DATA SECTION ===
TapeAlert Supported
TapeAlert: OK
Current Drive Temperature: 32 C
Drive Trip Temperature: <not available>
Error counter log:
Errors Corrected by Total Correction Gigabytes
Total
ECC rereads/ errors algorithm processed
uncorrected
fast | delayed rewrites corrected invocations [10^9 bytes]
errors
read: 12 0 0 0 12 0.000
0
write: 58268 0 0 0 80927 0.000
0
Device does not support Self Test logging
I will repeat the btape test on this drive 1 and will repeat the backup test on
drive 0 to
prevent from false situations.
If all is as before the btape test should fill the tape on drive 1 up to 750
GiByte ~ 800 GByte
and the backup test should fill the tape on drive 0 only to 400 - 500 GiByte.
Cheers,
Pierre
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