How many NUP’s you really need when using Oracle Database ?

Something about licensing. Boring for the most of us, but this may save you a lot of money…. The next is not completely new, but I never had it on writing, so found it worthfull to blog.  The following has by the way no legal status and I’m not held responsible for any claims Oracle might want to put on your company (that is, can’t afford a lawyer..)

Maybe you know the rule: When using Oracle Enterprise Edition database, and want to license by NUP’s – Named User Plus Licenses – you are bound to a minimum of 25 users per Oracle-defined processor. So using a server with one Intel-based quad-core processor (with a factor of 0,5), you have to pay for (4 * 0,5 =) 2 Oracle processors, which is equal to a minimum of 50 users.

This has  been defined in the Software Investment Guide (page 14):

Minimums for this metric may be discrete quantities, or they may be based on the number of processors in the machine on which the software will be installed and/or run. For example, the minimum for the Database Enterprise Edition, the iAS Standard Edition and the iAS Enterprise Edition is 25, 10 and 10 Named Users Plus per Processor, respectively

Let’s stick for a moment on the Enterprise Edition of the database, and the example above. When a second server (1 quad core) is added, also with an Enterprise Edition database on it you’ll have to pay for a total of 100 NUP’s.

But what if I only have got 60 users (non human operating device included) who are directly or indirectly authorized to use those two databases / nodes. Will I pay for 60 users or 100 ? To be sure I asked this question to my contact at LMS (License Management Service at Oracle).

By |December 14th, 2012|Categories: licensing|Tags: , |2 Comments

Oracle and RHEL 6 certification

Waited for a long time now, but here it is, copied it from the official press release. It’s a bit pity of the 90 days in the second bullet, but in the meantime it is certified all the way and it is reflected in the certification in My Oracle Support.

Oracle Announces the Certification of the Oracle Database on Oracle Linux 6 and Red Hat Enterprise Linux 6

Redwood Shores, Calif. – March 22, 2012

News Facts

  • Oracle Database 11g Release 2 (R2) and Oracle Fusion Middleware 11g Release 1 (R1) are immediately available on Oracle Linux 6 with the Unbreakable Enterprise Kernel.
  • Oracle Database 11g R2 and Oracle Fusion Middleware 11g R1 will be available on Red Hat Enterprise Linux 6 (RHEL6) and Oracle Linux 6 with the Red Hat Compatible Kernel in 90 days.
  • Oracle offers direct Linux support to customers running RHEL6, Oracle Linux 6, or a combination of both.
  • Oracle Linux will continue to maintain compatibility with Red Hat Linux.
  • Effective immediately, Oracle will provide its Red Hat compatible Linux binaries, updates and errata for free http://public-yum.oracle.com. Terms, conditions and restrictions apply.

Some FAQ on this matter can also be found on the Redhat-site here.

By |March 30th, 2012|Categories: Database|Tags: , , |1 Comment

Oracle on RHEL 6 , using ASM with or without ASMLIB

A while ago, but worth mentioning it for those customers with a roadmap based on Red Hat Linux.  The status regarding RHEL 6 is the following:

– Oracle has indeed certified RHEL 6 for the Oracle database, see also the comments in this article, and my seperate blogpost about it.

Red Hat announced recently an extended lifecyle (support) of version 5 and 6, from 7 to 10 years.

– Red Hat is making things harder by shipping its RHEL 6 kernel source as one big tarball, without breaking out the patches. Distribution in this form satisfies the GPL, but it makes life hard for anybody else wanting to see what has been done with this kernel

Maybe as a result of this:  regarding ASMLIB Oracle mentioned in note 1089399.1 :

For RHEL 6, Oracle will provide ASMLib software and updates only when configured with a kernel distributed by Oracle. Oracle will not provide ASMLib packages for kernels distributed by Red Hat as part of RHEL 6. ASMLib updates will be delivered via Unbreakable Linux Network (ULN), which is available to customers with Oracle Linux support. ULN works with both Oracle Linux or Red Hat Linux installations, but ASMLib usage will require replacing any Red Hat kernel with a kernel provided by Oracle.

Red Hat has written this general article  about it and this technical article how to overcome this:  using ASM with or without ASMLIB.

First I mentioned in this post that you could not use ASM with RHEL 6, but Tim Hall corrected me on this, read his comment on this post. Thanks (and cheers… ) !

Hope it helps somebody.

 

By |January 4th, 2012|Categories: Database, RAC|Tags: , , |11 Comments

Multipath timeout issues with extended 11.2.0.2 – cluster setup. Part II

The second and final post about an issue with a RAC-configuration with two SAN’s.  Problem was a i/o-freeze of minutes when crashing one of the two SAN’s. The first post I ended with a ‘cliffhanger’  because we had a solution, but not tested it yet. Now we tested it.

Start with a mockup of the first post.

Setup:

3 HP DL380 G6 systems with a basic RHEL 5u5 x86_64 installation (2 x RAC clusternodes, 1 x NFS-voting-node)

2 SAN’s HP EVA 6400 systems with 2 controllers each (resulting in 8 paths per device)

Oracle 11.2.0.2

Test: power off 1 SAN.  Default result / problem: i/o freeze of minutes, Oracle didn’t like it, started to evict, shutdown, startup = expected behaviour after such a long i/o freeze. But this is not the intention when installing a RAC with two SAN’s….

By |January 3rd, 2012|Categories: Database, RAC|Tags: , , , |0 Comments

Param ‘_datafile_write_errors_crash_instance’ , TRUE or FALSE?

Since 11.2.0.2 there’s a new parameter, “_datafile_write_errors_crash_instance” to prevent the intance to crash when a write error on a datafile occurs .  But.. should I use this or not.  The official text of this parameter:

This fix introduces a notable change in behaviour in that
from 11.2.0.2 onwards an I/O write error to a datafile will
now crash the instance.

Before this fix I/O errors to datafiles not in the system tablespace
offline the respective datafiles when the database is in archivelog mode.
This behavior is not always desirable. Some customers would prefer
that the instance crash due to a datafile write error.

By |August 26th, 2011|Categories: Database, RAC|Tags: , , |0 Comments