IBM LTO2 uses a different way to check the servo tracks than most other brands
the latest firmware 4772 corrects that so that IBM drives are more tolerant to 
errors in the servo tracks then before.

(before both servo tracks must be perfect) 
with the latest firmware occasional glitches in one servo track are Ok as lomg 
as at least 1 servo track is still OK. 

Even then, I have 3 IBM drives are had already 2 swapped tape drives, we 
bought them sept 2004.

Maarten


On Tuesday 06 September 2005 23:21, Albert Eddie Contractor AFRPA/ESS wrote:
> OK waited long enough to get input from you guys.
>
> I am not discounting everyone but will try to reply to all with one
> reply if I can.
>
> 3 Sites
>       HQ w/ADIC SCALAR 100
>       Site 2 w/SCALAR 24
>       Site 3 w/SCALAR 24
>
> Things in common
>
> All sites running
>       Windows 2003 SP1
>       Legato Networker for Windows v7.2
>       IBM LTO2 Drives
>
> There is a specific ADIC SCALAR 100 driver
>       Had to use a generic UNSPECIFIED SCALAR Driver for the SCALAR
> 24s
>
> Legato Tech Support is saying IBM LTO2 Drives are being returned a lot
> (we have returned one from each site)
>
> When I "MONITOR" one of the tapes that consistently gets marked as FULL,
> Legato appears to read the tape as "WRITE PROTECTED" then it is marked
> full.
>
> The problem started at the site in CA, then a few days later in happened
> in TX and then finally at HQ here in DC. I don't think it is a Legato
> VIRUS per-se but the look and the fact that it came in a wave is weird.
>
> We need to get this fixed of course as those tapes are very expensive.
>
> > -----Original Message-----
> > From: Legato NetWorker discussion
> > [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Scott Clous
> > Sent: Monday, September 05, 2005 7:31 PM
> > To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> > Subject: Re: [Networker] Premature marking tapes full
> >
> > I've seen some notes about Legato having issues, in some
> > versions, have you applied any patches from Legato?  I'd love
> > to know the answer too.
> > What OS are the backup servers running, 2003/2000? Which service pack?
> > Some tapes are bad.  Some drives are bad, describe more the
> > details of when this this happening... Thx.
> >
> > -----Original Message-----
> > From: Legato NetWorker discussion
> > [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
> > On Behalf Of Albert Eddie Contractor AFRPA/ESS
> > Sent: Friday, September 02, 2005 1:14 PM
> > To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> > Subject: [Networker] Premature marking tapes full
> >
> > Fairly new install (3 months)
> > ADIC SCALAR 24s and ADIC SCALAR 100
> > Networker for Windows 7.2
> >
> > I have 3 sites similar hardware and identical installs
> >
> > All 3 sites have tapes being marked very prematurely as FULL
> > when they are no where near it.
> >
> > 178 MB tape marked as full on a 200GB natural LTO2 tape.
> >
> > ADIC points to software, Legato points to ADIC here I am
> > stuck in the middle with you!
> >
> > Any ideas what could be causing this?
> >
> > Semper Fidelis, /ALE
> >
> > Eddie Albert, Network Serf
> > Air Force Real Property Agency
> > Executive Services/Computer Systems
> > Desk (703) 696 - 5509 - Hip (703) 517-3855
> > Eddie.Albert AT afrpa.Pentagon.af DOT mil
> >
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-- 
Maarten Boot, 
Compuware Europe B.V.
Hoogoorddreef 5
1101 BA Amsterdam
Tel: +31 20 312 6511

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