all you need is in the thread LGWR , ARCH , LNS resposiblities in dataguard follow my example in the thread.there is practical for you.
i am little busy. google this white paper "Data Guard Redo Transport & Network Best Practices Oracle Database 10g Release 2"
Data Guard | Raheel&#039;s Blog link contradict itself, quoting "LGWR submits redo data to one or more network server processes (LNSn), which then initiates the network IO in parallel to multiple destinations. " in the next paragraph, blogger says "On Standby site, RFS (remote file server) receives the redo data from the LGWR and writes redo to standby redo logfiles. " ?????
Note: i did not read the whole blog/page!
open new thread to ask another question, so that others member can easily understand and advice.
you can see LNS at db and os.
from DB, On Primary
SELECT * FROM V$MANAGED_STANDBY
Above query shows you mrp process too on Standby
from OS, you should look at below thread. Veeresh's answer.
I need one more clarification. Now my db version is 10gr2.
I am not using 11g.
- In this link you said LGWR never send redo information to standby database from primary.
In 10gr2 -> oracle official link says .. LOG_ARCHIVE_DEST_n Parameter Attributes
ARCH & LGWR specifies ,
whether redo transport services use archiver processes (ARCn) or the log writer process (LGWR)
to collect transaction redo data and transmit it to standby destinations.
1) In 10g who will NOT send redo information to standby ?
2) In 11g who will NOT send redo information to standby ?