Stanley
It may just be a co-incidence as the appliances have bene know to suddently have issues and they do tend to need a little tuning.
Obviously to do that you will need to actually log into it via putty (you can try root or admin and P@ssw0rd) as it may have been re-set during the patch.
Once logged in go to the Support menu, then Maintenance, then type elevate - this will give you file level access to the appliance
Now work through the following - lots here so dont skip anything ...
First change the keep alive time if they are not set to 510, 3 and 3:
# cat /proc/sys/net/ipv4/tcp_keepalive_time
7200
# cat /proc/sys/net/ipv4/tcp_keepalive_intvl
75
# cat /proc/sys/net/ipv4/tcp_keepalive_probes
9
change the setting:
# echo 510 > /proc/sys/net/ipv4/tcp_keepalive_time
# echo 3 > /proc/sys/net/ipv4/tcp_keepalive_intvl
echo 3 > /proc/sys/net/ipv4/tcp_keepalive_probes
To keep persistent after a reboot see below – use vi editor:
The changes would be rendered persistent with an addition such as the following to /etc/sysctl.conf
## Keepalive at 8.5 minutes
# start probing for heartbeat after 8.5 idle minutes (default 7200 sec)
net.ipv4.tcp_keepalive_time=510
# close connection after 4 unanswered probes (default 9)
net.ipv4.tcp_keepalive_probes=3
# wait 45 seconds for reponse to each probe (default 75
net.ipv4.tcp_keepalive_intvl=3
Don’t need a restart to take effect - and then run : chkconfig boot.sysctl on
Second create this file with the value of 800 inside:
/usr/openv/netbackup/db/config/DPS_PROXYDEFAULTRECVTMO
Third enable compression for de-dupe:
/usr/openv/lib/ost-plugins/pd.conf
Edit line so Compression =1
Fourth make sure that the automatic tuning has been done (it should run on first boot up but has been know not to):
cd to: /opt/NBUAppliance/scripts/
type the following once in that directory:
../bin/perl tune.pl
Fifth go to usr/openv/netbackup/db/config and make sure that there are no SIZE or NUMBER DATA BUFFER files present - if there are make a note of their values and then rename them (you can try putting these back later if you have any performance issues
Now type exit and exit to come back to the normal menu and issue a reboot command
See how it goes - i have found that all of these setting together make the applicances totally stable - just the BUFFERS i have not checked recently as 2.1a adds some in i believe
Hope this helps