Re: [Networker] Premature marking tapes full

I have not seen the LTO2 tapes that sensitive to firmware.  That said,
StorageTek anyway is shipping IBM LTO2 the latest firmware of 53Y2. Before
that they were shipping 4C60.  

I would ask ADIC what driver and firmware they reccommend.

Robert Maiello
Pioneer Data Systems

On Wed, 7 Sep 2005 12:05:03 +0200, Maarten Boot (CWEU-USERS/CWNL)
<Maarten.Boot AT NL.COMPUWARE DOT COM> wrote:

>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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