|
Re: [Networker] incorrect block size
2005-02-03 15:25:57
Somen Chanda wrote:
I successfully completed the migration from Solaris 8 to Linux platform but
same library and tapes.
But the tapes do not get recognised in the library even though they are in
the media database. I am able to label them only if I remove them from the
media database.
I also found an error message in the messages file as:
backup1 ntpd[1858]: time reset -0.507072 s
Feb 3 13:00:05 backup1 ntpd[1858]: kernel time discipline status change 41
Feb 3 13:00:05 backup1 ntpd[1858]: synchronisation lost
Feb 3 13:02:39 backup1 kernel: st1: Block limits 1 - 16777215 bytes.
Feb 3 13:02:49 backup1 kernel: st1: Incorrect block size.
Feb 3 13:03:12 backup1 last message repeated 2 times
I wonder if you have the same problem that I've run into. We are
running Networker on
Linux with AIT-3 and AIT-2 drives. Several times, our server has lost
its setting,
and reverted to 512-byte blocks from the size we had set. (We use
stinit and have
definitions for block sizes in our networker startup file.) After
getting a message like the
one you got above, the tape is eventually ejected. Bad.
Now here's the weird part. If you use front-panel library commands to
load a tape into
the drive, then force scanner to run (with the "-v" option), scanner
will discover your block
size then reset the tape drive to variable instead of fixed. I've sent
this to Legato and spent
a really unpleasantly long time with this. It's clearly something
buggy either with the Adaptec
driver or with Networker, but I can't tell which. I do have this
workaround, though.
Also, there is a switch on the AIT drives (documentation hard to find)
which changes the default
of the drive from fixed to variable. This is not, however, a cure for
the problem above.
If you want to see the enormous thread of mail I have from this problem,
let me know.
When you remove the entreis from the medai database and label the tapes,
what does scanner report
about the blocksize of the tape?
Matt Temple
Can any one help on this?
My stinit.def file looks like this:
# initial LTO Gen 1 entry for IBM , may need additional tweaks
#
manufacturer=IBM model = "ULTRIUM-TD1" {
can-bsr scsi2logical drive-buffering
timeout=800
long-timeout=14400
mode1 blocksize=0 density=0x00 # as close as possible to st.conf entry
Thanks in advance!
Somen Chanda
--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listserv.temple DOT edu or visit the list's Web site at
http://listserv.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
--
=============================================================
Matthew Temple Tel: 617/632-2597
Director, Research Computing Fax: 617/582-7820
Dana-Farber Cancer Institute mht AT research.dfci.harvard DOT edu
44 Binney Street, LG300/300 http://research.dfci.harvard.edu
Boston, MA 02115 Choice is the Choice!
--
Note: To sign off this list, send a "signoff networker" command via email
to listserv AT listserv.temple DOT edu or visit the list's Web site at
http://listserv.temple.edu/archives/networker.html where you can
also view and post messages to the list. Questions regarding this list
should be sent to stan AT temple DOT edu
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
|
|
|
