DP INCR took 1 hour and NBU INCR took
5? Was the NBU INCR the first backup of the system? That is
to say had you previously run a FULL in the same policy? If not it means
your incrementals are actually full backups as an incremental is changes since
the last FULL. Run a FULL then tomorrow run an INCR and see if it
changes. You said you compared the amount of data – are you
sure you compared what was actually backed up as opposed to what was on the
server? Running bdf on the server will show you how much is there
in all the filesystems. Comparing this to amount backed up might be
worthwhile as it may tell you about things that are NOT being backed up.
(Of course this isn’t 100% but it should be approximately close.)
The messages below aren’t a
problem. However, /tmp as implied by its name is a directory for
temporary files. Many people put it in the exclude list (usually in
/usr/openv/netbackup/exclude_list.<POLICY> where <POLICY> is the
NBU policy) to prevent it being backed up at all. You might want to
find out if the DP stuff has an equivalent of exclusion and determine what if
anything they are excluding. It is usual on UNIX/Linux
systems for people to have separate backups for the OS filesystems and for
other applications/database directories. (For example on our big
HP-UX Dev server we backup the OS but do NOT backup any of the development filesystems
on the theory that if we lose any of those than can be recreated by “refreshing”
from our Production backup. Due to this our exclude list excludes
several terabytes. If we were to suddenly run a backup without that
exclude list it would take quite a while to run (probably 2-3 days).
Prior to going to 6.5.4 in our environment
we had several issues. However, as noted previously we were doing
media servers rather than clients as it appears you are doing and I don’t
know that this would be as big a problem. We found that having the
master and media servers all at the same version helped resolve issues even
though it supposedly isn’t required.
From: WEAVER, Simon
(external) [mailto:simon.weaver AT astrium.eads DOT net]
Sent: Thursday, June 30, 2011 3:35
AM
To: Lightner,
Jeff; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Advice
on HPUX 11.11
Jeff
Yes, its being done over the LAN - No tape
drives attached, which is why I am quite worried about this. Using Data
Protector, INCR takes less than 1 hour... NetBackup took almost 5!!!
This is a legacy box, and it is due to be
changed in the end of year, but right now, its got to be migrated over. The
client is 6.5 at the moment.
DP not doing any DeDup - simple file level
back up!
Yes compared incr backups... both show
same amounts of data .... jus tNBU is slower.
Does not make sense. One thing I noticed
in the logs (even though it ends in status 0) are the following events in
Activity Monitor...
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/sock.104.19241 is a socket special file. Skipping.
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/.AgentSockets/A is a socket special file. Skipping.
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/.oracle/sKEYTOBID is a socket special file. Skipping.
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/.oracle/s#7532.1 is a socket special file. Skipping.
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/.oracle/s#1859.1 is a socket special file. Skipping.
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/.oracle/s#7799.1 is a socket special file. Skipping.
30/06/2011
02:02:30 - Info bpbrm(pid=9552) from client SERVER: TRV -
/tmp/.oracle/sEXT920 is a socket special file. Skipping.
The name SERVER has been replaced. But there are many events
like these loaded. Because I dont have good unix skills, I cannot just "go
along" and put the latest client software on ... I did wonder if applying
6.5.6 would help (if I can find it !)
Simon
From: Lightner, Jeff [mailto:JLightner AT water DOT com]
Sent: Tuesday, June 28, 2011 2:00
PM
To: WEAVER, Simon (external);
veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Advice
on HPUX 11.11
Are you actually backing up via network on
DP? That is to say are you sure it doesn’t have its own fibre
connections to your tape library or other storage medium?
NetBackup allows you to do that
with “media servers” and in our environment we have most of our big
HP-UX 11.11 servers doing that. Our master server up through NBU 6.5.4
was HP-UX 11.11. (With 7.1 we had to go to Linux master server as
it still allows for HP-UX media servers but not a master server.)
We do a daily backup of over 4 TB to Quantum DXi and also to tape concurrently
from one our HP-UX 11.11 media servers and both of those finish in less than 7
hours. (They would finish more quickly if not run concurrently but
the overall job time doing them sequentially would be longer so we chose to do
them concurrently.)
100MB LAN backup would be very
slow especially compared to a GigE network (which most HP-UX servers have
available cards for) so even if not doing the above the VLAN you’re using
could make a significant difference for a network backup.
Is DP doing some form of
deduplication?
Are you comparing an
incremental backup on DP to a full on NetBackup?
Is the DP backing up directly
from the source server like your test on NetBackup? (That is to say
it is common in large DB environments to do something like EMC’s BCV/SRDF
or Hitachi’s
Shadow Image so that you are in essence duplicating the drives to mirrors,
splitting off the mirrors, mounting the mirrors elsewhere and backing up
from those mirrors rather than the source.)
By the way HP-UX 11.11 (a/k/a
11iV1) has been EOL for some time. Also HP quit making the PA-RISC
chipset that ran HP-UX 11.11 at the end of 2009. You might want to
suggest to your management that they start planning for moving to something
newer. HP’s newer systems run on Itanium and some of the older
ones could be converted from PA-RISC to Itanium.
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of WEAVER, Simon (external)
Sent: Tuesday, June 28, 2011 3:58
AM
To:
veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Advice on
HPUX 11.11
Hi, I wonder if I can get some unix advice!
Looking at moving Unix from Unix Data Protector to NBU 7.0.1
As a test, installed a client on HPUX 11.11 and performed a
test backup of their selected folders.
It took over 16 hours. yet DP could do the same in 4 hours!
Bit gobsmacked really. Also found out it is on a different
vlan running 100mb, but the results are not good from their point of view.
Not knowing Unix that well, is there anything I could ask
someone to check / verify as to why it was slow?
Regards
Simon Weaver
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