backup failing due to strange logs in rhel 5.5

Hi Please help me to fix the problem

These logs are coming when backup failed:

more db2_stderr.010213
su: cannot set user id: Resource temporarily unavailable
su: cannot set user id: Resource temporarily unavailable

Below logs are coming in /var/log/secure

 pam_keyinit(su-l:session): Unable to change UID to 3231 temporarily

Please help
apunkabollywoodAsked:
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comfortjeaniusConnect With a Mentor Commented:
limits.conf takes effect when the user authenticates, so you can just restart the service.

for sysctl.conf

Free BSD

sudo /etc/rc.d/sysctl reload

Other Distribution of Linux try:

sudo sysctl -p /etc/sysctl.conf

You will not have to worry about rebooting.
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omarfaridConnect With a Mentor Commented:
can you elaborate more on the problem? Are you taking backup or restoring? Are you using root account or normal user account? Can you share the command / script used?
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comfortjeaniusConnect With a Mentor Commented:
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apunkabollywoodAuthor Commented:
some more logs:

 cat db2_stdout.070113
DB2_CLIENT = hostname
DB2_SERVER = hostname2
DB2_POLICY = DB2_ONLINE
DB2_SCHED = DB2_ONLINE
DB2_FULL = 1
DB2_CINC = 0
DB2_INCR = 0
Executing: db2 BACKUP DATABASE P30  online LOAD /usr/openv/netbackup/bin/nbdb BUFFER 1024 INCLUDE LOGS
SQL20  An error occurred while accessing media
"/usr/openv/netbackup/bin/nbdb".  Reason code: "514"

#/usr/openv/netbackup/logs/bphdb/log.07

bphdb: INF - Processing /usr/openv/netbackup/ext/db2/scripts/db2_backup_online
bphdb: INF - Child executing /usr/openv/netbackup/ext/db2/scripts/db2_backup_online
bphdb: INF - Waiting for the child status
 bphdb: ERR - Script exited with status = 4 <archive file removal failed>
bphdb: WRN - Directory /usr/openv/netbackup/logs/bpubsdb2 does not exist
 bphdb: ERR - bphdb exit status = 6: the backup failed to back up the requested files
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apunkabollywoodAuthor Commented:
Also please advice do we need to reboot the machine to make the changes permanent of limits.conf and sysctl.conf please advice?
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apunkabollywoodAuthor Commented:
which service i need to restart ? for limits.conf?
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apunkabollywoodAuthor Commented:
Hi I also came to know that we cant use FC direct with vmware ESX is it correct if yes than do you haev any idea - and than what we will use as an alternative if we need to use FC from our VM linux machine to tape drives?
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apunkabollywoodAuthor Commented:
Please ignore last comment wrongly pasted:

Look at some more new logs:

Error bprd (pid=1234) Unable to write progress log </usr/openv/netbackup/logs/user_ops/dbext/logs/20159.0log> on client clienthost. Policy=DB2_P30_LOG Sched=DB2_P30_LOG_SC
 Error bprd (pid=1234) CLIENT clienthost  POLICY DB2_P30_LOG  SCHED DB2_P3

Please guide
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apunkabollywoodAuthor Commented:
Thank you
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