Gary,
I've occasionally seen this error but it's always cleared up by retrying the
operation. Rarely it has taken more than one retry. When that happened I
ran the cleaning tape through twice in a row and that seemed to clear it up.
For me it has always happened when I was manually mounting a tape in the
drive, not during normal backup operations (not even when the backup
automatically mounted a new tape to continue a backup). I always figured it
was a timing issue where Networker timed out the operation before the drive
was ready but when it checked the drive for an error it got 'No Error'.
Since it isn't a big problem (it's been 6 months since the last time) I
haven't done anything about it.
We have Networker 7.2.1.Build.311 on W2K with a Spectralogic 10K jukebox and
2 AIT-4 drives. We upgraded from AIT-2 about 9 months ago and the problem
was more common on the AIT-2 drives.
About 6 months ago I started running the cleaning tapes through both of our
AIT-4 drives twice in a row once a week and I haven't seen the problem
since. That of course might be a coincidence.
If cleaning doesn't help then I guess I'd be looking at the drives or the
tapes you are using.
This message probably wasn't all that helpful but no one else appears to be
answering I thought I'd throw my 2 cents in.
David Werth
Garmin AT, Inc
Salem, Oregon
dave.werth AT garmin DOT com
-----Original Message-----
From: Gary Goldberg [mailto:og AT DIGIMARK DOT NET]
Sent: Thursday, June 22, 2006 5:19 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: [Networker] read open error: No error
Hello. I am having this problem with my backup system and was hoping anyone
would have some information or advice about it.
One of the two drives in my tape jukebox gets this error:
save read error: No error
and all I can do is eject the tape. I also get a bad block error in the NT
system log. I assumed that the drive needed cleaning, so I disabled it
temporarily and used the other drive. (The jukebox and both drives have
been recently serviced and were verified working good.)
I just cleaned the drives with a Sony AIT head cleaner, and re-enabled it.
Same error. Then the first drive started getting the error, although not
consistantly.
I deleted the jukebox instance from Networker and re-created it in case the
SCSI assignments were messed up. No change.
The system is running now on the first drive, but I'd like to be proactive
(within a non-existant budget 8-( ) and know what to do if it comes back.
I'd
also like to use the second drive again.
Suggestions? Is it likely a drive going bad? (But both at nearly the same
time?) SCSI cable? (I swapped the cables with another similar, but one
drive tape jukebox but the error didn't transfer.) Or something else?
Thanks in advance. -Gary
The system:
Intel dual P3 450Mhz, 1GB RAM, 4 x 18GB RAID-5 disk array, Adaptec
2940U2,
Cybernetics (Spectralogic 30-slot AIT-1 jukebox (2 drives, bar code
reader. firmware recently flashed to the latest available version by
Cybernetics as part of their refurbishment.)
WinNT 4 w/ all patches (Yes, I know I should upgrade but everything is
turned off in it and its behind a firewall...)
Networker 6.2 build 109, 20 extra client license (total 30), Linux
pack,
autoloader up to 30 license, MSSQL and storage node add-ons.
(6) RH9, CentOS3 & CentOS 4 web servers and (1) Win2K server as
clients,
plus the nsrserver host.
--
-- "There are 10 kinds of people in this world: those who
-- understand digital technology and those who do not."
Gary Goldberg KA3ZYW <og AT digimark DOT net> V:301/249-6501 F:301/390-1955
AIM:OgGreeb
Digital Marketing/Bowie MD/Systems & Networks Consult
<http://www.digimark.net/>
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