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Upcoming ADR presentation at UKOUG
I am presenting a talk around the use of the Automatic Diagnostic Repository at the UKOUG SIG in Reading on 22nd September 2011. I will be covering, amongst other things, the management of files, the...
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ADR presentation done and dusted
I was pleased with my the presentation on ADR I gave yesterday at the Unix SIG in Reading. The timing was bang on at 60 minutes and the audience had not seen or used many of the features I discussed so...
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The value of UKOUG presentation feedback
One of the benefits of presenting at UKOUG, whether it be a SIG or the Conference is the feedback received from the audience via the questionnaire. I received mine for the ADR presentation I did at the...
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Resource Manager plans during the automatic maintenance window
Whilst ensuring that Resource manager was working properly I noticed a problem that it seemed to be dropping out of the plan I wanted to run ( DW_PLAN) and returning to the default plan whilst in the...
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Standby databases – a few of gotchas
All of these items refer to Dataguard standby databases on 11GR1 and the active dataguard license comment is applicable in 11GR2 as well. LGWR: Insufficient standby redo logfiles to archive The first...
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Crash caused by AMM resize operations and high ‘direct file read’
Much off the following diagnosis was performed by a colleague Scott Chisholm. The outcome is a lot of new information (to me at least) about the parameter _small_table_threshold but I have also...
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UKOUG 2011 – Day 1
The first day of UKOUG conference at the ICC in Birmingham and there were a lot of familiar faces are around. Due to a lot of traffic I missed the first presentation I wanted to see which was from Kyle...
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UKOUG 2011 Part Deux
Day 2 of the UKOUG conference at the ICC in Birmingham and back into the fray. First up was Thomas Presslie talking about Dataguard fast start failover. How he managed to demonstrate transactions and...
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UKOUG 2011 – day 3
The final day of the 2011 UKOUG conference and it was straight in at the deep end with Joel Goodman talking about automatic parallelism in 11GR2. The talk was full of information, as Joel’s talks...
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Nice notebook style blog site
It is not often that I would post just to mention someone else’s blog but there is always a first time. In the idle time that generally happens between Xmas and New Year I was catching up with various...
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My blog analysis of 2011
WordPress send out a nice email with lots of details about your blog in the last year. Apart from visits growing month on month two points interested me. My most popular posts were all written several...
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Speeding up the gathering of incremental stats on partitioned tables
11G introduced incremental global stats and the table WRI$_OPTSTAT_SYNOPSIS$ contains synopsis data for use in maintaining the global statistics. This table can grow very large and Robin Moffat has...
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Database SIG – Manchester 27th March
The UKOUG have done really well in organising the next Database Server SIG. It is being held at the City of Manchester Stadium – the home of Manchester City. That is the group of players bought on the...
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The Mother of all ASM scripts
Back in 2009 I posted a script which I found very useful to review ASM disks. I gave that post the low-key title of The ASM script of all ASM scripts. Now that script has been improved I have to go a...
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Alter system v Alter database – which to guess at
I have been doing a lot of interviewing recently and I have a set of questions which are quite generic but I like to use them to lead into areas where I can probe a bit deeper if the interviewee allows...
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Interview questions – one approach
In my last post I talked about doing a lot of interview questions lately. I have been thinking of changing my standard set of questions anyway so I thought it would be a good idea to write about the...
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Excellent Optimizer Statistics articles
For anybody who is interested in reading about optimizer statistics and gaining a clear understanding on what they can do and how they can be managed then I suggest reading the following two white...
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Curing unevenly balanced ASM diskgroups to reduce poor file distribution
Back in Nov 2011 I posted a question on the Oracle-L mailing group about my perception that ASM disk rebalances seemed to be required on DATA diskgroups in ASM (never FRA, presumably because the FRA...
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Huge asm_rbal_trace file with text UNINDENT OF DISK
You may notice a large and growing trace file in diag dest which contains numerous lines starting with the phrase “NOTE: Unident of disk ” followed by a disk path. *** 2012-04-17 18:31:10.759...
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Test Case for 11gR2 Role Separation issue on HP-UX – help wanted
On any HPUX (11:31) system where grid infrastructure has been applied with 2 software owners – in our case grid and oracle – oracle’s best practise for GI implementations – RAC or standalone systems....
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