Chris,
You mentioned Advanced Compression but did not mention Hybrid Columnar
Compression. Am I correct to assume you are *not* using HCC in Exadata?
Seth
On Wed, Jul 18, 2018 at 12:50 PM Chris Taylor <
christopherdtaylor1994@xxxxxxxxx> wrote:
Out of curiosity, I assume you use TDE and Advanced Compression on the
Exadata side. What storage are you using on the standby commodity hardware
and are you using the same datafile compression & TDE on the commodity
hardware for the standby?
Chris
On Wed, Jul 18, 2018 at 11:47 AM Ls Cheng <exriscer@xxxxxxxxx> wrote:
response in-line
On Wed, Jul 18, 2018 at 2:36 PM, Chris Taylor <
christopherdtaylor1994@xxxxxxxxx> wrote:
We're gearing up for a massive migration to an Exadata machine and in*I do, I have recently (a few months) helped a customer migrate from
the process we're going to be freeing up a lot of our previous hardware and
storage. The current storage is Pure m70.
What we 'thought' we were going to do was something like this (high
level):
1. Migrate DB to Exadata
2. Rebuild standby dbs on non-exadata using the now freed up Pure storage
3. Clone dev/test/staging environments from Standby DB on Pure
HOWEVER, I'm not sure that's doable as Exadata uses TDE and Advanced
Compression. It doesn't appear that Pure likes using AC at the DB layer
and instead prefers managing the compression and deduplication internally.
Question(s):
1. Has anyone here built a standby on different hardware from Exadata
when primary is on Exadata?
Sparc platform to Exadata quarter rack x6-2 in primary site and commodity
intel Dell servers in DR site.*
2. If so, what issues (gotchas) did you run into that we may need to*No, no gotchas as long as you don use Cell functionalities such as HCC.
consider?
Some of migrated database is running since December 2017 and so far we have
not hit any issues.*
3. Does this sound like a 'bad idea' already? My gut is telling me this*Well if you talk with Oracle Sales or presales they will tell you this
may be a bad idea.
is a bad idea mainly because your DR site has not got the same power as
primary site. In my customer case they were willing to have less powered DR
site, they assumed once in DR they can only have 30% primary site's
capacity*
Chris
