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Hi guys,

Anyone seen this type of problem before - using old version 3.4 on HP 
servers in an SSO environment all fibre connected to 20 x 9840c drives in 
a L700e library. Problem I'm getting only affects oracle backups using 
rman, SAP and standard backups no issues. What I see in  the rman backup 
log is the data getting written then hangs then more data written hangs 
etc till it gets to the point of opening database and then hangs again. 
These hangs can be anything from 10 to over 60mins each time. Example of 
main part of rman rcv script which is basically the same across the 
servers.

run
{
   allocate channel t1 type 'SBT_TAPE';
   allocate channel t2 type 'SBT_TAPE';
   allocate channel t3 type 'SBT_TAPE';
   setlimit channel t1 kbytes 2097150;
   setlimit channel t2 kbytes 2097150;
   setlimit channel t3 kbytes 2097150;

   backup
     incremental level 0
     filesperset 10
     database
     format '%U' ;

   # now that the backup is complete, open the db.
   alter database open;
}
allocate channel for delete type 'sbt_tape';
crosscheck backup of database completed before 'SYSDATE-70';
delete expired backup of database completed before 'SYSDATE-70';
release channel;


Also the crosscheck seems very slow. I am not a dba (black art like 
networks) but i assume nothing if wrong with the above script. What gets 
me is the part where it says it is opening the database and nothing 
happens for ages - talked to dba's but got nowhere they say they have no 
problem with rman catalog and problem is netbackup, yet the physical data 
is written quickly (checked NB logs for this)  but the bells and whistles 
around rman can take an eternity. Any help comments will be appreciated.

By the way if Mark Donaldson reads this post you are the dog's danglies 
your scripts and comments rock.

Nigel
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<br><font size=2 face="sans-serif">Hi guys,</font>
<br>
<br><font size=2 face="sans-serif">Anyone seen this type of problem before
- using old version 3.4 on HP servers in an SSO environment all fibre connected
to 20 x 9840c drives in a L700e library. Problem I'm getting only affects
oracle backups using rman, SAP and standard backups no issues. What I see
in &nbsp;the rman backup log is the data getting written then hangs then
more data written hangs etc till it gets to the point of opening database
and then hangs again. These hangs can be anything from 10 to over 60mins
each time. Example of main part of rman rcv script which is basically the
same across the servers.</font>
<br>
<br><font size=2 face="Courier New">run</font>
<br><font size=2 face="Courier New">{</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;allocate channel t1 type
'SBT_TAPE';</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;allocate channel t2 type
'SBT_TAPE';</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;allocate channel t3 type
'SBT_TAPE';</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;setlimit channel t1 kbytes
2097150;</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;setlimit channel t2 kbytes
2097150;</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;setlimit channel t3 kbytes
2097150;</font>
<br>
<br><font size=2 face="Courier New">&nbsp; &nbsp;backup</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp; &nbsp;incremental level
0</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp; &nbsp;filesperset 10</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp; &nbsp;database</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp; &nbsp;format '%U' ;</font>
<br>
<br><font size=2 face="Courier New">&nbsp; &nbsp;# now that the backup
is complete, open the db.</font>
<br><font size=2 face="Courier New">&nbsp; &nbsp;alter database open;</font>
<br><font size=2 face="Courier New">}</font>
<br><font size=2 face="Courier New">allocate channel for delete type 
'sbt_tape';</font>
<br><font size=2 face="Courier New">crosscheck backup of database completed
before 'SYSDATE-70';</font>
<br><font size=2 face="Courier New">delete expired backup of database completed
before 'SYSDATE-70';</font>
<br><font size=2 face="Courier New">release channel;</font>
<br>
<br>
<br><font size=2 face="sans-serif">Also the crosscheck seems very slow.
I am not a dba (black art like networks) but i assume nothing if wrong
with the above script. What gets me is the part where it says it is opening
the database and nothing happens for ages - talked to dba's but got nowhere
they say they have no problem with rman catalog and problem is netbackup,
yet the physical data is written quickly (checked NB logs for this) &nbsp;but
the bells and whistles around rman can take an eternity. Any help comments
will be appreciated.</font>
<br>
<br><font size=2 face="sans-serif">By the way if Mark Donaldson reads this
post you are the dog's danglies your scripts and comments rock.</font>
<br>
<br><font size=2 face="sans-serif">Nigel</font>
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