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Hi,
Anyone have some
experiences to share about getting maximum throughput from their EV backups?
We have Netbackup
5.3mp4 running on AIX with 1 AIX media server,
We have Enterprise
Vault (Windows 2003 NTFS) with a GB backup LAN.
I am struggling to
get greater than 2500KB/sec backup speed from our vault stores partition.
I know that the
greatest issue is that this partition has many tiny files and that this adds
overhead in backing up them up.
Example: We have
right now 606GB consisting of ~983000 files on this partition alone.
I get a throughput
of ~2500KB/s according to the Netbackup console but I would say it is a little
lower based on my math.
I have turned off
VSP caching, which did help by ~1500KB/s.
We have turned on
the EV collector which should go about collecting the small files into larger
CAB files, however, I am still seeing long delays in the time it takes for
backups.
During testing, I
have found that I can kick off a new stream and backup another partition on the
same server and get a throughput of 10,000KB/s which leads me to believe it
is not a network related setup issue.
Is there anything
else that someone has done to increase throughput, or can anyone share what type
of performance they are getting?
I am considering a
flashcopy scenario of the SAN disk associated with this server which won't
fix the issue, but atleast move it from the production server to an offline
situation.
I am also
considering, doing a raw partition backup (haven't used this method before but
read about it in the admin guide), knowing that only a restore of the entire
partition would be an option in a DR situation.
thanks for any advice.
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