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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Oracle Parallel Server / Other HA Solutions
We have a Compaq Tru64 cluster with Oracle 7 and 8 databases. We opted =
to NOT install OPS. The cluster runs scripts to bring up a 'service' - =
which is really a virtual node with its own ip address. If a node fails, =
the cluster brings up the service (and the database) on the other node - =
no manual intervention required. This means a few minutes of downtime for =
the database, but it also means fewer headaches by not having to deal with =
OPS. =20
When we initially set this up, we made some calls to DEC/Compaq to ask =
questions. They basically said that more people should do what we are =
doing, rather than going with OPS which is usually overkill for most =
shops.
Oracle salesfolks recently paid us a visit and tried to talk us into =
OPS. The 8i version is supposed to be easier to install. They also =
introduced 'cache fusion' which basically makes the SGA of one instance =
available to the other instance using shared memory channels. But you =
still have to deal with raw devices, etc.
In my opinion, if you can afford to do cold backups each night, you =
don't need OPS.
>>> "Ruiz, Mary A (CAP, CDI)" <Mary.Ruiz_at_gecapital.com> 10/12/00 10:58AM =
>>>
I need a little advice. We have a fairly new (< 1 year) 8.1.5 instance =
to
support my company's internet business. We recently changed our network
solutions provider and now my management wants to achieve a higher level =
of
redundancy than it currently does with mirrored disks. The solution being
proposed by my Sysadmin is an Oracle Parallel Server solution. Some
background is in order here - we have always shut our databases down at
night for backups. I am not highly skilled in backup and recovery =
although
I tried some of the hot backup techniques from this list and was able to
recover successfully to another server. I noticed that the course offered
by Oracle in OPS has backup and recovery as well as performance tuning as
pre-requisites, which indicates to me that OPS could be extremely
challenging. Also, I have read mainly unfavorable comments about OPS from
this list, but most of those comments were based on the Oracle 7
implementations (High administrative costs, difficult to implement, =
etc.).=20
Have things improved with Oracle 8i ? Is OPS worth pursuing? Or should I convince my management that extra $$ spent in, say, a hot standby database is well worth it? Is there any other solution that would not involve a second set of disks, rather a second database on the same set of disks ??
Thanks in advance,
Mary Ruiz / Atlanta
--=20
Please see the official ORACLE-L FAQ: http://www.orafaq.com=20
--=20
Author: Ruiz, Mary A (CAP, CDI)
INET: Mary.Ruiz_at_gecapital.com=20
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