I've had pretty bad luck with the Adaptec drivers. I found that the original
driver from Win2K works well. This was with my Exabyte M2 drives. My LTO-2
drives are FC...
-----Original Message-----
From: McDougal, Philip H [mailto:PMcDougal AT JENNER DOT COM]
Sent: Wednesday, October 08, 2003 12:20 PM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] LTO Tapes being marked full prematurely
George, what bios and driver version are you running for the 39160?
One version, u160_xp_2000_sp4 (I think, it's been a while, could have been
sp3a) gave me a beautiful BSOD. I finally got things moving with version
u160fms40_sp5_s1 (driver version 6.1.6300 on 7/15/03) for the 39160 (for
windows 2000). The Bios I'm runnig is 3.10.0
I've also seen the "\Device\scsi\adpu160m4,did not respond". The m4 tells
me what bus/drive is affected. Unfortuntately, as George so eloquently put
it, it's hard to tell what is causing the point of failure and it's quite
frustrating to continously deal with an issue thats been around for a while.
Regards,
Phil.
-----Original Message-----
From: George Sinclair [mailto:George.Sinclair AT NOAA DOT GOV]
Sent: Wed 10/8/2003 11:41 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Cc:
Subject: Re: [Networker] LTO Tapes being marked full prematurely
We have Seagate, first generation LTO drives, and we occasionally
see
this problem. When it occurs, there is typically always a SCSI
error(s)
in the system log somewhere around the time the tape was prematurely
marked full. In other words, something happens on the SCSI bus,
NetWorker sees it, freaks out and marks the tape full because in its
little mind, it's doing you a favor by regarding the tape as
suspect, as
in "I'm not gonna write to this tape any more because something
happened, and I'm not convinced that the tape was not the culprit".
I
guess I can remotely understand the reasoning, but it is annoying
when
the tape has plenty of space, and you know it was just a SCSI error.
The
real question is, what causes these SCSI errors? They seem sporadic
and
unpredictable at best.
For a while we were under the impression that it was a drive
problem,
but then the attention turned to the Adaptec SCSI driver as has been
observed and commented on by several people in this forum. We
checked
cables, replaced cables with the proper LVD ones, replaced the
terminators, and at least two drives. Same problems. We're running
Linux
on the storagenode server, and the library is a StorageTek L80. We
finally replaced the kernel code with a new version of the Adaptec
driver code to see if that would fix the problem. The problem has
occurred once since the update which I think was maybe two weeks
ago. I
should note that we're also running an ATL P1000 SDLT tape library
on
this same storagenode server, but it runs on a separate Adaptec
card.
Maybe having both libraries on there, even though they're running on
separate cards, is a possible problem? I should also note that in
the
case of the StorageTek library, two LTO drives and the picker share
one
channel, and the other two drives share the other channel, each
channel
has one SCSI cable going to its respective port on the back of the
dual
channel Adaptec 39160 card. The ATL has two drives and one picker
which
share a single channel (one SCSI cable) to its dual Adaptec 39160
card.
Two separate cards. We also have the latest BIOS on both cards. Who
knows?
George
"Willeat, Todd" wrote:
>
> Hi Phillip,
>
> I'm also having problems with the LTO-2 drives in my i2000. We
keep getting
> and error 6 on the drive, which is supposed to be a media problem.
> Unfortunately, when that happens, the library takes that drive
offline and
> NetWorker just sits for hours trying to access it and doesn't do
anything
> with the other drives that still work.
>
> BTW, the drives are IBM, not HP...
>
> -----Original Message-----
> From: McDougal, Philip H [mailto:PMcDougal AT JENNER DOT COM]
> Sent: Wednesday, October 08, 2003 10:04 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Re: [Networker] LTO Tapes being marked full prematurely
>
> Is it me or are there quite a few people who keep having LTO-2
drive
> failures??? I have an ADIC Scalar i2000 with 6 LTO-2 drives and
had 1 DOA,
> another failure about a week later. Last night (almost 2 months
later), I
> have 2 more dead drives.
>
> Do you think it's the ADIC library or the HP drives that are the
problem (or
> both)? I'd like to know who I should be venting to before I go
off on both
> of them ;-)
>
> Phil.
>
> -----Original Message-----
> From: Rada Uspensky [mailto:ruspensky AT RA.ROCKWELL DOT COM]
> Sent: Monday, October 06, 2003 4:38 PM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Re: [Networker] LTO Tapes being marked full prematurely
>
> We had similar situation due to the tape drives malfunction.
> It started slowly but in a couple weeks we had hundred tapes
marked full
> prematurely.
> Check the event log for the drive related errors and contact the
vendor to
> fix or replace drives.
>
> Davina Treiber <Treiber AT HOTPOP DOT COM>@LISTMAIL.TEMPLE.EDU> on
10/06/2003
> 04:22:39 PM
>
> Please respond to Legato NetWorker discussion
> <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>; Please respond to
Davina
Treiber
> <Treiber AT HOTPOP DOT COM>
>
> Sent by: Legato NetWorker discussion
<NETWORKER AT LISTMAIL.TEMPLE DOT EDU>
>
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> cc:
>
> Subject: Re: [Networker] LTO Tapes being marked full
prematurely
>
> Maine, Daniel wrote:
> > Hello!
> >
> > We are using Networker 7x on a Win2000 server. It is attached
to a
> STKL180
> > by SCSI.
> >
> > We are experiencing problems with the LTO tapes being marked
"full"
> before
> > they have used it's allotted space. Some are being marked
"full' with
> only
> > 2g.
> >
>
> What brand of drives and what brand of tapes?
>
> If they are Seagate drives, they will only work well with certain
tape
> brands. Maxell/Fuji/Seagate are the only ones certain to work,
although
> some others are Maxell or Fuji rebadged.
>
> --
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