Arun,
Just checking to see if you have any updates on this.
Thanks!
-Devin
On Jun 13, 2018, at 5:30 AM, Tefft, Michael J <Michael.J.Tefft@xxxxxxxxxx>
wrote:
I noticed that our AWR report (on a 12.2 database with encrypted tablespaces)
specifically itemizes elapsed-time and CPU-time spent on tablespace
encryption. It is in the ‘Time Model Statistics’ section.
If your 40%-50% impact is not showing up here – perhaps you have plans
changing or other factors that are causing the issue.
Mike Tefft
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Robert Freeman
Sent: Monday, June 11, 2018 7:27 PM
To: arun.chugh1610@xxxxxxxxx; Jay.Miller@xxxxxxxxxxxxxxxx
Cc: Oracle Mailing List <oracle-l@xxxxxxxxxxxxx>
Subject: RE: Database Encryption
What version of the database are we talking about here? Always helpful
knowledge.
If it’s a supported version, I’d open an SR with Oracle, to be honest. You
should not be seeing this kind of impact from encryption unless your server
was already sitting on the edge.
Depending on your version, there are known bugs (and – yes – bug fixes) for
problems related to encryption and performance.
Where are you seeing your biggest impacts? CPU, IO response times, changed
execution plans? What was the command you used to do the encryption? Did you
encrypt with or without salt? In other words, what have you done to quantify
the problem you are seeing?
Stay the course and figure out this problem would be my suggestion. Don’t
just jump ship because you’re taking on a little water.
Cheers
Robert G. Freeman
Deliverer of Enterprise Data®
Businessolver
Cell: 801-703-3405
“Greater than the death of flesh is the death of hope. The death of dreams.
Against this peril we can never surrender. The future is all around us,
waiting in moments of transition, to be born in moments of revelation. No one
knows the shape of that future, or where it will take us. We know only that
it is always born in pain.”
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Arun Chugh
Sent: Thursday, June 07, 2018 12:45 PM
To: Jay.Miller@xxxxxxxxxxxxxxxx
Cc: Oracle Mailing List <oracle-l@xxxxxxxxxxxxx>
Subject: Re: Database Encryption
Yes right... Did not encrypt the system sysaux undo n temp..
On Thu, Jun 7, 2018, 22:53 <Jay.Miller@xxxxxxxxxxxxxxxx> wrote:
You say “almost all the datafiles of the database”. I assume you mean
tablespaces rather than datafiles but just wanted to confirm that you didn’t
encrypt SYSTEM, SYSAUX, UNDO or TEMP?
Jay Miller
Sr. Oracle DBA
201.369.8355
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Arun Chugh
Sent: Wednesday, June 06, 2018 11:51 PM
To: Oracle Mailing List
Subject: Database Encryption
All,
We have encrypted almost all the datafiles of the database, post that the
performance of the database degraded to almost 40-50%
Could anyone suggest what is the other alternative method that we can use in
order to secure data with bit performance impact.
Regards,
Arun
