My experince is windows2k networker uses the variable setting for writing only 
and the registry
change for writing/reading. I do not know why.

Thus if you only set the variable you cant read the tapes. We set the registry 
entry only to get
both settings.

I suggest ( if not already suggested by someone) you use st.conf entries to set 
your blocksize.

Kit

On 8 Aug 2003 at 10:57, Teresa Biehler wrote:

> So, I set the environment variable on the Solaris server to lower the =
> block size to 128KB so that Windows and UNIX agree.  I added the =
> following to the top of the networker start up script:
>
> NSR_DEV_BLOCK_SIZE_8MM_AIT_3=3D128
> export NSR_DEV_BLOCK_SIZE_8MM_AIT_3
>
> After making this change, I restarted the server.  I states that the =
> block size for all the AIT-3 devices is 128KB as expected.  Then I =
> labeled a new tape, ran a full back up to it - so far so good.  When I =
> ran scanner on the tape, however, I get this:
>
> scanner -v /dev/rmt/5cbn
> scanner: Opened /dev/rmt/5cbn for read
> scanner: Rewinding...
> scanner: Rewinding done
> scanner: Reading the label...
> scanner: Reading the label done
> scanner: SYSTEM error: Tape label read: Bad file number
> scanner: SYSTEM error: Tape label read: Bad file number
> scanner: scanning for valid records...
> scanner: read: -1 bytes : Not enough space
> scanner: Opened /dev/rmt/5cbn for read
> scanner: read: -1 bytes : Not enough space
> .
> .
> .
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> scanner: read: 0 bytes
> .
> .
> .
>
> Does anyone have any ideas what is going on?
>
> Thanks.
> Teresa
>
>
>
> -----Original Message-----
> From: Ruzza, Claudio [mailto:claudio.ruzza AT HP DOT COM]=20
> Sent: Friday, August 08, 2003 8:54 AM
> To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> Subject: Re: [Networker] setting block size
>
> Teresa,=20
> Needless to say, the variable name should be modified according to your =
> drives technology.
> Example: assuming you have SDLT drives, the variable name will become
> NSR_DEV_BLOCK_SIZE_SDLT
>
> In windows 2000 you can set this variable doing some easy steps:
> Click right on "My computer" and choose Properties
> Choose "Advanced"
> Click the "Environment variables" button
> Click the button "new" in the lower part of "system variables" pane
> In "variable name" enter the name you have "build up" once you have =
> identified your drive's technology
> In "variable value" just enter 128
> Click OK and that's all.
>
> Please check that after having set the variable at least one media =
> initialized by those Server/SN has reaaly labeled at 128K. In case it =
> doesn't, there are some additional steps to do, involving registry edit. =
> Check listmail archives, there's a wonderful page about that.
>
> In Solaris and any other UNIX flavour the variable must be set as any =
> other environment variable. I'm not a UNIX expert, so I can't be more =
> precise.
>
> Hope it helps
>
> Claudio Ruzza
>
> > -----Original Message-----
> > From: Teresa Biehler [mailto:tpbsys AT RIT DOT EDU]
> > Sent: venerd=EC 8 agosto 2003 14:05
> > To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> > Subject: setting block size
> >=20
> >=20
> > I've got a Solaris Networker server and I'm trying to set up a Windows
> > storage node that will share the same tape library.  So, I=20
> > want the each
> > system to be able to read/write tapes written by the other.  Based on
> > running scanner -v on tapes written by both hosts, I've=20
> > determined that
> > I need to set the block size to 128KB.  So, how do I do this?  In the
> > admin guide is says to set the environment variable
> > NSR_DEV_BLOCK_SIZE_DEVICE_NAME.  Where/how do I do this (for both
> > Solaris and Windows)?
> >=20
> >=20
> >=20
> > Thanks!
> >=20
> > Teresa
> >=20
> >=20
> > --
> > Note: To sign off this list, send a "signoff networker"=20
> > command via email
> > to listserv AT listmail.temple DOT edu or visit the list's Web site at
> > http://listmail.temple.edu/archives/networker.html where you can
> > also view and post messages to the list.
> > =
> =3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D*=3D=
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>
> --
> Note: To sign off this list, send a "signoff networker" command via =
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