Hey Mike
The way I did it was to run EMC Time Finder Scripts from the bp.start
and bpend scripts from Netbackup.
This particular environment was Oracle on Two Symms running SRDF
in-between both of them. I had a rather good Time Finder Scripter that
just wrote me a nice perl script with a interface that allowed me to
pass parameters to break off and mount any on the associated BCV's that
I needed. If memory servers me correctly, I think the perl script would
log into each instance of the database as needed, do a Redo Log Switch
and then database suspend so that he could get a consistent image, then
split off the BCV and resume the database. This took a whole 1 or 2
seconds to complete.
Then the policy when run backup those mount points and when done, run
the bpend script to umount those BCV file systems so that TimeFinder
could start to resync them.
AIX
NBU 3.4
Oracle 8.1.7 with Financial Apps
Hope this helps
Sean
-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of Wilkinson,
Mike
Sent: Monday, May 05, 2003 3:21 AM
To: 'Doran, Frank'; 'Veritas-bu AT mailman.eng.auburn DOT edu'
Subject: RE: [Veritas-bu] backup new SAN environment
Okay, I'll bite - although I cannot contribute too much...
Where I am, we are backing up data on a Symmetrix - but only through
individual workstations and only the locally mounted file systems. We
have
two separate SANs, one for EMC disk and one for tape libraries. Big
systems
will have two fiber cards installed and media manager instances on them,
but
small systems only have a disk fiber card, and back up via a dedicated
backup network to dedicated media servers (with local disk and a SAN
fiber
card in them).
This whole layout is rather complex, but I think there are serious
concerns
that our outfit would have in doing what you propose. First mixing EMC
disk
and SCSI tape SAN traffic would be bad for us - our tape SAN is unzoned,
while our disk SAN is not, and we also might have serious
traffic/routing
contention issues. Secondly, most of our file systems and database
chunks on
the Symmetrix are very active, and the only way I know we cane get
consistent raw disk backups of an EMC disk is by acquiescing a
disk/database
instance and breaking off the "third mirror" for an "offline" backup
(I've
seen this called a BCV backup.) We are also starting to do SRDF between
Symmetrix arrays, so that could complicate the disk consistency issues
in
this case.
This does not mean was you suggest may not be possible, but I suspect it
could be very problematic. Perhaps there are some Symmmetix gurus on
this
list that can enlighten both of us on what is reasonably doable here and
what is not. (It may depend a lot on what model and firmware version
your
Symmetrix array is as well.)
Hope it helps,
- MW
PS. Those of you doing BCV backups out there, how do you coordinate the
mirror break off with running a scheduled backup? Inquiring minds want
to
know...
-----Original Message-----
From: Doran, Frank [mailto:fdoran AT concordefs DOT com]
Sent: Thursday, May 01, 2003 6:06 AM
To: 'Veritas-bu AT mailman.eng.auburn DOT edu'
Hello,
We are currently running NetBackup 4.5 with a Solaris 8 Master/Media
server
with 4 NT Media Servers and 11 Solaris Media Servers. The Media Servers
are
connected to a StorageTek SN6000 tape san. These are all backing up data
that is direct attached to approx 150 NT and UNIX clients. We recently
purchased a Symmetrix DMX 2000 and plan to migrate all of our data to
this
SAN. In addition to this migration, we are also consolidating our 60
UNIX
Clients/Media servers to domains on three Sun 15K servers. My questions
Are:
1. How are other Veritas clients backing up data on a Symmetrix?
2. Instead of Media Servers on the new 15K domains, could we
dedicate
other servers as backup servers, connect these to the tape and disk
SANs,
and take the load off of the servers were the applications are?
3. If #2 can be done, are there any backup and restore
considerations?
Thanks,
Frank
fdoran AT neteps DOT com
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