FW: active-active for private IP?

From: "Herring Dave - dherri" <Dave.Herring@xxxxxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Date: Tue, 1 Dec 2009 11:44:15 -0600
Reposting for Freek...

David C. Herring  | DBA, Acxiom Database Services
 
630-944-4762 office | 630-430-5988 cell | 630-944-4989 fax
1501 Opus Pl | Downers Grove, IL, 60515 | U.S.A. | www.acxiom.com
 
-----Original Message-----
From: D'Hooge Freek [mailto:Freek.DHooge@xxxxxxxxx] 
Sent: Tuesday, December 01, 2009 9:58 AM
To: Herring Dave - dherri; oracle-l@xxxxxxxxxxxxx
Subject: RE: active-active for private IP?

Dave,

In redhat5, you can/must use udev to control the order of the ethx
assignments.

I seem to be unable to post to the list currently. Could you forward it
for me?

regards,

Freek D'Hooge
Uptime
Oracle Database Administrator
email: freek.dhooge@xxxxxxxxx
tel +32(0)3 451 23 82
http://www.uptime.be
disclaimer: www.uptime.be/disclaimer
________________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Herring Dave - dherri [Dave.Herring@xxxxxxxxxx]
Sent: 01 December 2009 14:45
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: active-active for private IP?

Thanks for the replies this!  So far I've received responses that state:

1)  Active-active is the best method, although make sure you have
stacked switches.

2)  Active-backup is a better solution for failover/redundancy (nothing
new).

3)  Redhat 4 has bond bugs, one of which is doesn't properly detect the
loss of a member of a bond.  You'll need to upgrade to Redhat 5.

4)  Redhat 5 has bond bugs, one of which is the ethx order changes on
reboot.

Redhat 4 and 5 have bugs, so either way I'll just have to make sure we
address the bugs matching the OS.  No one has official recommendations
from Oracle, so the choice is back to which is more important -
potential performance gains vs. redundancy.

BTW, I was given a couple Metalink references but surprise, surprise, I
can't get in currently. :-)

David C. Herring  | DBA, Acxiom Database Services

630-944-4762 office | 630-430-5988 cell | 630-944-4989 fax
1501 Opus Pl | Downers Grove, IL, 60515 | U.S.A. | www.acxiom.com
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FW: active-active for private IP?

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