data guard bandwidth requirements
edited Sep 11, 2012 3:04AM in High Availability Data Guard, Sharding and Global Data Services (MOSC) 1 commentAnswered
Hi Everyone,
Customer needs to support 162GB redo per hour peak... So I’ve calculated that as 45MB per second
((45000000 / 0.7) * 8) / 1,000,000 = 514 Mbps.
A customer is trying to use logical Dataguard to replicate a
high volume of data with very low latency. I am trying to check whether their network will be a problem for this requirement...
So looking at this link:
http://www.oracle.com/technetwork/database/features/availability/dataguardnetwork-092224.html
The formula used
in the paper (assuming a conservative TCP/IP network overhead of 30%) is: Required
bandwidth = ((Redo rate bytes per sec. / 0.7) * 8) / 1,000,000 =
bandwidth in Mbps
Customer needs to support 162GB redo per hour peak... So I’ve calculated that as 45MB per second
((45000000 / 0.7) * 8) / 1,000,000 = 514 Mbps.
Customers Network:
1x1Gb (Gigabit Ethernet) network card which has to handle
the data from App Server and to the Target system. (A switch to 10Gb will
require significant hardware change and be expensive)
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