Networker

[Networker] Can't write DLT7000 to full capacity...

2006-04-26 14:29:19
Subject: [Networker] Can't write DLT7000 to full capacity...
From: "Brian O'Neill" <oneill AT OINC DOT NET>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Wed, 26 Apr 2006 14:24:54 -0400
Grrr...just having fun this week...still working on the index problem...but here is another one...

I've got a Networker 7.2.1 installation running on a Linux box (Fedora Core 4), with the 2.6.16 kernel.

I know there can be issues with the 2.6 kernel series, but from discussions here it mostly pertained to autochangers. This has a single DLT7000 drive.

The system previously ran Red Hat 9 (2.4 kernel) and 7.1.2 without issues.

Now, when writing out the tapes they are getting marked full long before their capacity is being reached. Out of 4 DLT IV tapes (35/70GB), I'm getting 11-23GB.

I'm getting the following in /var/log/messages. Is this just because of the kernel? Or is something else at fault? The tape drive cleaning light is not on, but I do have a cleaning cart on order.

Apr 26 00:31:10 backup1 kernel: program nsrmmd is using a deprecated SCSI ioctl, please convert it to SG_IO
Apr 26 00:31:10 backup1 last message repeated 11 times
Apr 26 00:31:10 backup1 kernel: st0: Error with sense data: <6>st: Current: sense key: Medium Error Apr 26 00:31:10 backup1 kernel: Additional sense: Positioning error detected by read of medium
Apr 26 00:31:10 backup1 kernel: Info fld=0x1
Apr 26 00:31:10 backup1 kernel: st0: Error on write filemark.
Apr 26 00:31:11 backup1 logger: NetWorker media: (notice) dlt7000 tape backup1.003 used 23 GB of 35 GB capacity Apr 26 00:31:10 backup1 logger: NetWorker media: (warning) /dev/nst0 writing: No such file or directory, at file 165 record 1 Apr 26 00:31:10 backup1 logger: NetWorker media: (notice) dlt7000 tape backup1.003 on /dev/nst0 is full

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