Veritas Oracle Backup Failure "NEWFS_MAX_SERVER_CONNECTIONS"

Question

I am fairly new at Oracle administration so bear with me. We
have been using Veritas Backup Exec (BE) 7.30 and the Oracle
agent to backup an Oracle 8.1.5 db. This occurs nightly and has
been successful for quite some time. In the last few days,
however, the backup job has failed with the following message:
"Unable to attach to ORACLE_ACME/XYZ.
NEWFS_MAX_SERVER_CONNECTIONS"
(where ACME is the server name and XYZ is the SID name)
Veritas has a technote for this error and the solution listed
is "This error will occur if a backup job of an Oracle database
is initiated while the database is already in backup mode".
I did note in review of the xyzalrt.log that the following
commands are normally issued during the backup:
ALTER TABLESPACE XYZ BEGIN BACKUP
COMPLETED.<snip>..
ALTER TABLESPACE XYZ END BACKUP
COMPLETED..
However the day this started happening the "end backup" command
never showed up in the alrt.log for the tablespace in question.
I could not figure out how to tell from my Oracle tools if the
database was truly "in backup mode". I therefore issued a sql
sommand "alter tablespace xyz end backup" which was processed.
However I then attempted a test backup with BE and got the same
error again. Any help would be appreciated.

Answer 1

Does "newfs_max_server_connections" error will come from oracle
or veritas.
I have two backup jobs one for data tablespaces and another for
index tablespaces, I think there should be any problem if i run
these backup at a same. But when I am running same time I get
the error
"NEWFS_MAX_SERVER_CONNECTIONS"