As far as I remember label was always 32K no matter what bs you use and it was 
written twice (on frist two file numbers).  Not sure if that changed.
 
What happens if you try to write and read after the data using some other tool 
like tar, tcopy or whatever else is out there?  Use same 256KB which you are 
using and verify if it gets written that way.  I'm not sure how to check these 
things on HP, but I think I remeber that is way by checking which device name 
will be picked up.
 
Cheers,
H

        -----Original Message----- 
        From: Legato NetWorker discussion on behalf of therese-marie Jonnaert 
        Sent: Wed 15/12/2004 09:56 
        To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU 
        Cc: 
        Subject: [Networker] Réf. : Re: [Networker] hp-ux 11.23 update 2 and 
networker 7.1.1 and nmo4.1
        
        

        Hi,
         we have fixed the block size to 256K on the script 
/sbin/init.d/networker
        on the servers using this:
        NSR_DEV_BLOCK_SIZE_SDLT=256;export NSR_DEV_BLOCK_SIZE_SDLT
        on the device configuration under networker
        on the oracle backup script and oracle restore script.
        And we are sure the tape label is 256k (confirmed by a scanner command)
        
        thanks,
        
        tmj
        
        
        
        
        "Girot, Jean-Pierre" <JGirot AT FR.MTI DOT COM>
        Envoyé par : Legato NetWorker discussion <NETWORKER AT LISTMAIL.TEMPLE 
DOT EDU>
        14/12/2004 17:36
        Veuillez répondre à
        Legato NetWorker discussion <NETWORKER AT LISTMAIL.TEMPLE DOT EDU>; 
Veuillez
        répondre à
        "Girot, Jean-Pierre" <JGirot AT FR.MTI DOT COM>
        
        
        Pour
        NETWORKER AT LISTMAIL.TEMPLE DOT EDU
        cc
        
        Objet
        Re: [Networker] hp-ux 11.23 update 2 and networker 7.1.1 and nmo4.1
        
        
        
        
        
        
        Hello,
        
        Perhaps the other SAN Storage Node doesn't use the same block size
        
        Kind Regards
        Jean-Pierre
        
        -----Message d'origine-----
        De : therese-marie Jonnaert [mailto:tmjonnaert AT COFIDIS DOT FR]
        Envoyé : mardi 14 décembre 2004 17:33
        À : NETWORKER AT LISTMAIL.TEMPLE DOT EDU
        Objet : [Networker] hp-ux 11.23 update 2 and networker 7.1.1 and nmo4.1
        
        hi,
        few days ago, I have posted a message speaking about oracle data base
        restore using Rman and using a San.
        To day, after many tests, we have detected that the problem is only 
using
        a
        new hp server unix version 11.23 update 2 (september
        2004,11.23.04.09).When
        we make a backup on the san with this dedicated storage node --> no 
error
        But when we try to restore this database on the san,another dedicated
        storage node (hp-us, 11.23), rman hang with this message:
        ORA-19501: read error on file "nhg73lmf_1_1", blockno 1456897
        (blocksize=1024)
        ORA-27190: skgfrd: sbtread2 returned error
        If we make the backup and the restore on the san with an hp-ux 11.23
        server
        all is ok.
        We use oracle 9.2.0.5.0, networker 7.1.1
        The hp server are 64bits itanium
        No help from legato, no help from hp because we haven't error on the
        system
        logs
        Have you an idea?
        thanks
        
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