, Tony
To: Multiple recipients of list ORACLE-L
Sent: Friday, August 22, 2003 10:39
PM
Subject: SharePlex info
You
are correct in the first place. SharePlex works as you describe, it
mines the log and sends only the absolute minimum to reassemble the
transaction on the target
NT.
T¬-Original
Message-From: Yechiel Adar
[mailto:[EMAIL PROTECTED]Sent: 25 August 2003 09:10To:
Multiple recipients of list ORACLE-LSubject: Re: SharePlex
info
Sorry about the late reply but (if I remember
correctly from my research about one year ago) Shareplex does something lik
[mailto:[EMAIL PROTECTED]Sent: Thursday, August 21, 2003 5:44
PMTo: Multiple recipients of list ORACLE-LSubject: RE:
SharePlex info
Your
bandwidth requirements will be the rate of changes to the actual data.
The traffic consists of the actual data and control information needed to
: SharePlex
info
Tony,
My
question was inspired by belief that SharePlex does log mining on the source
DB and hence do not send unnecessary data over the network. Apparently, this
is not the case. I didn't want to compare SharePlex to logical standby cause I
know that logical
Hi there
In the past few weeks, there have been lots of discussion about HA, data
replication
and using Shareplex, dataguard, Streams, logical physical
standby. As most of you
have found out each has it own pros and cons. You also need two
sets of Database licences
and Shareplex licences. Then
Title: Message
Hi All,
I'm trying to find some technical
details about SharePlex, that is:
- How much network bandwidth I'd
expect to replicate from database, generating 1-5 MB/sec redo.
DoesSharePlex send SQL text over the network or data in some internal
(hopefully compressed)format
-
1)You would need lessnetwork bandwidth with shareplex than you would for transporting archive logs. about 1/3 rd ofwhat you would need for physical stdby.
2) CPU burden would be 'little' I guess.
3) Shareplex replication allows you to have the table available for read on the target. (even
.
- Original Message -
From:
Gorbounov,Vadim
To: Multiple recipients of list ORACLE-L
Sent: Thursday, August 21, 2003 8:49
PM
Subject: SharePlex info
Hi All,
I'm trying to find some technical
details about SharePlex, that is:
- How much network
Thank
you, Raju. Very helpful
-Original Message-From: raju pa
[mailto:[EMAIL PROTECTED]Sent: Thursday, August 21, 2003 4:59
PMTo: Multiple recipients of list ORACLE-LSubject: Re:
SharePlex info
1)You would need lessnetwork bandwidth with shareplex than
you would
to
replicate about 50% of the tables in the source database.
HTH
Tony
Aponte
-Original Message-From: Gorbounov,Vadim
[mailto:[EMAIL PROTECTED]Sent: Thursday, August 21,
2003 1:49 PMTo: Multiple recipients of list
ORACLE-LSubject: SharePlex info
Hi All,
I'm trying
: Thursday, August 21, 2003 5:14
PMTo: Multiple recipients of list ORACLE-LSubject: Re:
SharePlex info
Hi!
Btw, you can physically replicate 50% of your
tables with regular standby mechanisms as well. You just take the files
belonging to non-needed tablespaces offline and standby recovers
But you would be wanting to transfer *full*
logfiles away from your production servers anyway at least if your data is
worth something...
Tanel.
1)You would need lessnetwork bandwidth with shareplex than
you would for transporting archive logs. about 1/3 rd ofwhat you
.
- Original Message -
From:
Gorbounov,Vadim
To: Multiple recipients of list ORACLE-L
Sent: Friday, August 22, 2003 12:54
AM
Subject: RE: SharePlex info
Tanel,
That's nice trick, thanks a lot.
In
this casewhole redo steam must be passed over the network anyway. 5
steam must be passed over the network anyway. 5 MB/sec over WAN. So we'are doing research if we could same some bandwidth.
Vadim
-Original Message-From: Tanel Poder [mailto:[EMAIL PROTECTED]Sent: Thursday, August 21, 2003 5:14 PMTo: Multiple recipients of list ORACLE-LSubject: Re: SharePle
: Friday, August 22, 2003 2:14
AM
Subject: RE: SharePlex info
Yes. A nice neat trick indeed. Has anyone tried this?
About your redo generation : 5MB/sec - 18000 MB/hour ==
18GB
IT is indeed huge. IS this peak or average? Good luck.
"Gorbounov,Vadim" [EMAIL
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