1. Agree about DNFS - get the bug fixes (sorry recommended patches for
DNFS)
2. Stretched cluster is a solution in search of a problem IMO
3. Although 19c also de-supported RH6 based O/S and there's no great O/S
upgrade path for existing clusters a.k.a YMMV.
4. See 2 :)
On Tue, Apr 28, 2020 at 3:41 PM Connor McDonald <mcdonald.connor@xxxxxxxxx>
wrote:
1) Can't comment, but worked on a customer which was a NetApp shop. Went
with the recommendations they provided in several of their whitepapers etc.
Go with Oracle direct NFS anway
2) ...
3) That was a temporary thing - support re-introduced in 19c, and you
should go to 19c anyway for support reasons
4) Yes. Same customer (NetApp 'stretch' cluster running RAC). Ran well,
but judicious use of services to control application workload partitioning
hth
On Fri, Apr 24, 2020 at 12:52 AM thierry gascard <tgascard@xxxxxxxxx>
wrote:
Hello Oracle DBAs,
We have some problems with DM multipath ( mixed SCSI and ISCSI devices)
=> oracle instance can fall.
So we plan to use NFS for the quorum disks.
I have some questions :
1) many people use hard options for NFS, but oracle recommended soft
options => not a big fan of hard option, why people not follow it ?
2) oracle recommend now one quorum disk for each diskgroup for steched
cluster, but i did not see people use it
3) 18C => oracle do not support NFS for Voting and OCR , What does it
mean ?
4) Does someone try to use exetend cluster configuration with RAC in
production ?
If people have recommendations about NFS usage with Rac
extended clusters, i will appreciate.
Thank you
--
Connor McDonald
===========================
blog: connormcdonald.wordpress.com
twitter: @connor_mc_d
"If you are not living on the edge, you are taking up too much room."
- Jayne Howard
*Fine print: Views expressed here are my own and not necessarily that of
my employer*
