What you have learnt is equivalent to the amount of sand you can hold in your hand. What you haven't is everything outside - Tamil Proverb


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Tuesday, April 10, 2012

Exadata - post ACS

How the SPARC T4 Processor Optimizes Throughput Capacity: A Case Study

Need to try & get the brain around this someday:

https://blogs.oracle.com/ruud/entry/how_the_sparc_t4_processor

Configuring DG Broker using OEM 12c for an "existing" Data Guard setup

Extending half rack Exadata to a full rack

Optimizer Statistics Whitepaper

Optimizer Statistics Whitepaper http://t.co/dtN8bcW6
by OraNA.info at 4/9/12 4:09 PM
(Source: http://twitter.com/orana/status/189444839199350784)

Sent from my iPhone

Cell version 11.2.3.1 - Db minimal pack patching gone

Updating Exadata Compute Nodes using ULN and YUM starting 11.2.3.1 http://t.co/KbJKcYAB #exadata #exalogic
by Oracle Exadata at 4/9/12 3:09 PM
(Source: http://twitter.com/oracleexadata/status/189528204984324098)

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Monday, April 9, 2012

Couple of AWESOME metalink notes on RAC & SCAN

Handy logfile locations, comprehensive command reference (srvctl, crsctl, ocrconfig, olsnodes, cluvfy) and superb diagrams on the RAC startup sequence:


11gR2 Clusterware and Grid Home - What You Need to Know [ID 1053147.1]




SCAN concepts and demo:
11gR2 Grid Infrastructure Single Client Access Name (SCAN) Explained [ID 887522.1]


The demo link inside the SCAN metalink note doesn't work...here's the working link:
http://www.oracle.com/webfolder/technetwork/tutorials/demos/db/11g/r2/grid_rac/11_rac_scan/rac_scan_viewlet_swf.html


Sunday, April 8, 2012

RAC ppt

My #OracleRAC presentation SlideShare Presentation on LinkedIn : Oracle RAC - Standard Edition, Enterprise Edition
http://t.co/pTvGuboJ
by Leighton L. Nelson at 4/7/12 8:23 PM
(Source: http://twitter.com/leight0nn/status/188784048968179712)

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Saturday, April 7, 2012

Duplicate Db

http://t.co/xF3FYjlU what happens to Read - Only tablespaces when you duplicate database, by @martinDBA

by CoskanDBA at 4/7/12 5:29 AM

(Source: http://twitter.com/coskan/status/188559017545711616)


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Friday, April 6, 2012

Ops center

Steve Wilson (@virtualsteve)
4/6/12 3:42 PM
Just posted my blog entry about launching Ops Center 12c in Tokyo. What a great trip! blogs.oracle.com/stevewilson/en…


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ODA Advanced

Fuad Arshad (@fuadar)
4/6/12 5:22 PM
Easy Made Easier - Networking blogs.oracle.com/dragonfly/entr…


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Linux internals

Words of wisdom: Just because your Oracle database is all O_DIRECT, everything else is page cache. Learn: http://t.co/93ilVfbW

by Kevin Closson at 4/5/12 7:08 PM

(Source: http://twitter.com/kevinclosson/status/188040394771136512)


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VM on VB

Setting up port forwarding for 7000 appliance VM in VirtualBox http://t.co/VVr2W8pr

by OraNA.info at 4/5/12 10:39 PM

(Source: http://twitter.com/orana/status/188093627724087297)


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Thursday, April 5, 2012

DG across Windows and Linux

Dan Norris (@dannorris)
4/4/12 8:54 PM
@oraclenerd Also see 881421.1 for a recipe (win/linux DG setup) cc @jdanton


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Sunday, April 1, 2012

iPhone camera apps

Sadanand Dhume (@dhume01)
4/1/12 5:48 PM
WSJ: Is the iPhone the only camera you need? [Yes.] online.wsj.com/article/SB1000…


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Terrific roundup of ASM in Exadata

Saturday, March 31, 2012

Chinese again

OracleBlogs (@OracleBlogs)
3/31/12 4:26 AM
Redundant Interconnect with Highly Available IP (HAIP) ow.ly/1isE0m


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Again in Chinese

OracleBlogs (@OracleBlogs)
3/31/12 5:26 AM
11g Active Data Guard ow.ly/1isGHk


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In Chinese

OracleBlogs (@OracleBlogs)
3/31/12 6:27 AM
Data GuardRedo GAP ow.ly/1isJFc


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Golden Gate - HTTPS

OraNA.info (@orana)
3/31/12 6:50 AM
Configuring Oracle GoldenGate Monitor for HTTPS dlvr.it/1NVVqc


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Wednesday, March 28, 2012

Oem 12c

OraNA.info (@orana)
3/28/12 5:16 PM
EM12c's Configuration Topology dlvr.it/1MzTtS


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Perf tuning

OraNA.info (@orana)
3/28/12 5:51 PM
Mastering Oracle Trace Data with Cary Millsap dlvr.it/1MzjwY


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Perf tuning - V$SQLAREA



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Getting diag info for Exadata



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Tuesday, March 20, 2012

ODA - Kerry's & Andy's blog

If you are looking to get familiarized with ODA, like in a couple of hours, this should be place for you to start.

http://kerryosborne.oracle-guy.com/2011/09/oracle-database-appliance/

Now, this is heavyduty:
http://blog.oracle-ninja.com/2011/09/inside-the-oracle-database-appliance-part-1/

http://blog.oracle-ninja.com/2011/12/inside-the-oracle-database-appliance-%e2%80%93-part-2/

Was it Einstein who said: “If you can't explain it simply, you don't understand it well enough”.
These guys are awesome.

Monday, February 13, 2012

Wednesday, February 8, 2012

GNS explained - video

http://youtu.be/qqUJFNByYp0


Monday, February 6, 2012

AWR & Performance

CoskanDBA (@coskan)
2/5/12 3:41 PM

FAQ: How to Use AWR reports to Diagnose Database Performance Issues [ID 1359094.1]


RAC Networking - brilliant

OraNA.info (@orana)
2/5/12 6:23 PM

Oracle GNS and converting Grid Infrastructure from static DNS SCAN/VIP to dynamic GNS provided SCAN/VIP http://dlvr.it/19KWls


Auto BMR in standby

Vairamuthu gem

Sundar (@sundar2005)
2/6/12 2:00 AM

RT @vairamuthu: அதிகாலை 5 மணிக்கு எழுந்து பழகுà®™்கள். போகப் போக வாà®´்க்கையுà®®் உடம்புà®®் வசப்படுà®®்.


Sunday, February 5, 2012

Migration

CoskanDBA (@coskan)
2/5/12 9:22 AM

Reduce Transportable Tablespace Downtime using Cross Platform Incremental Backups [ID 1389592.1] this can be a game changer for migrations


Saturday, February 4, 2012

Paradigm shift - DBaaS

Sudip Datta (@sudip_dat)
2/2/12 1:47 AM

Database as a Service: Transforming the role of DBAs.
http://goo.gl/FBPUc


Very interesting - ASM IO

Anand Prakash (@anandprakash86)
2/2/12 5:40 AM

Monitor RAC I/O with gv$iostat_function http://wp.me/ppZNJ-fG via @wordpressdotcom


ILOM upgrade

jarneil (@jarneil)
2/2/12 6:00 AM

new blog posting on updating #exadata iLOM firmware: http://jarneil.wordpress.com/2012/02/02/upgradingdowngrading-exadata-ilom-firmware/





Listener 11g RAC

Tuesday, January 31, 2012

12c new features

OracleBlogs (@OracleBlogs)
1/31/12 9:33 PM

What's new in Oracle Enterprise Manager 12c Agents http://ow.ly/1h3J8O


Monday, January 30, 2012

RAC on Netapp

Leighton L. Nelson (@leight0nn)
1/29/12 1:37 PM
Oracle Database 11g Release 2 Performance
Using Data ONTAP 8.1 Operating in ClusterMode
media.netapp.com/documents/tr-3961.pdf #RAC #DNFS



CISCO UCS

Leighton L. Nelson (@leight0nn)
1/29/12 10:19 PM
Oracle 11gR2 DSS/DW Performance on Cisco UCS and NetApp Storage
media.netapp.com/documents/tr-3926.pdf #RAC #NetApp #DNFS


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Exadata disk layout

CoskanDBA (@coskan)
1/30/12 1:47 AM
bit.ly/Ao6kT4 exadata disk layout and usable space calculations follow up post by @bryangrenn



EMGC 12c Video

Gokhan Atil (@gokhanatil)
1/30/12 3:21 AM
Enterprise Manager Cloud Control 12c: Install and Integrate BI Publisher (YouTube) youtube.com/watch?v=1OSVDj… #em12c



ODA

OracleBlogs (@OracleBlogs)
1/30/12 9:37 AM
Oracle Database Appliance - Partner Sales Webcast ow.ly/1h13V5



OPN EXADATA EXAM

Oracle Exadata (@oracleexadata)
1/30/12 9:56 AM
OPN Certified Implementation Exams: Oracle Exadata 11g Essentials bit.ly/y43GmN #exadata #exalogic


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Wednesday, January 25, 2012

Performance - cursor sharing


My cursor wasn't shared because of STB_OBJECT_MISMATCH. What does that mean? http://ow.ly/1gVtMj


Redo sizing w/ nologging - Frm the master Riyaj



New post by rshamsud - Nologging redo size - http://tinyurl.com/7n469ob


SUSE TO. OEL


How Dell Migrated From SUSE Linux to Oracle Linux http://bit.ly/wCHOP5 > some technical details, not just a case study


If u missed today's 12c stuff


The Oracle Enterprise Management Online Forum is ended . You can watch on demand later http://bit.ly/wkhhJO #em12c


Rman BCT

From: Surachart Opun

read Oracle 10G Block Change Tracking Inside Out http://bit.ly/ys8REQ


Flashback explained

Cool Linux


Does Your Weekend Workload Look Like This? http://ow.ly/1gVDyI


Worthy aim in life

Bill Gates (@BillGates)
1/24/12 7:32 PM

We can make the choice to help the world's poorest. http://b-gat.es/annual-letter


RAC INTERNALS VIDEO

Levi Pereira (@dba_levipereira)
1/24/12 8:51 PM

Watch: Part 2- Understanding Oracle RAC Internals by Markus Michalewicz http://wp.me/p189BW-jz via @wordpressdotcom





Nice DIY space calculation from Bryan

Good Architecture pix for RAC & Exadata

ODA VIDEO

Exa* (@ExaStar)
1/25/12 8:09 AM

Video: Introducing #Oracle #Database Appliance: A Fully Integrated System
http://www.youtube.com/watch?v=ySiXn9Db1fE


Saturday, January 21, 2012

Friday, January 20, 2012

Monday, January 16, 2012

Saturday, January 14, 2012

Wednesday, January 11, 2012

Datasheet: Oracle Exadata 'expansion' rack

Exadata MAAAAAAA

AUTO DOP !

That little AUTO DOP rascal :

http://uhesse.wordpress.com/2011/10/12/auto-dop-differences-of-parallel_degree_policyautolimited/

Superb posting by Uwe Hesse - always the best !


Performance Tuning - Tracing

Good discussion on Voting disk / OCR location for ASM

UEK

Virtualization fun stuff

Would love to lay my hands on the Solaris 11 VM & learn !
This is the Virtual Box prebuilt-page:

http://www.oracle.com/technetwork/community/developer-vm/index.html


Oracle VM for Oracle Virtual Box !!
http://www.oracle.com/technetwork/server-storage/vm/template-1482544.html

Should try that out one of these days.


Oracle Database Appliance

On patching schedules for 11.2.0.3

Another new acronym, that will become popular: QDPE: Quarterly Database Patch for Exadata !

And another: QFSDP  (Go figure !)


http://www.pythian.com/news/29911/introducing-thequarterly-database-patch-for-exadata/


A Colvin blogged about it also:
http://blog.oracle-ninja.com/2012/01/new-exadata-full-stack-patches/

THE Rene Kundersma:
http://blogs.oracle.com/XPSONHA/entry/first_quarterly_full_stack_download


Great 'POCKET REFERENCE' from Oracle

WHAT IS BIG DATA

Much awaited - ZERO DOWNTIME MIGRATION USING GOLDENGATE !

On Voting Disk & node eviction logic

Make Your Cubicle a Better Place to Work

Tuesday, January 10, 2012

10053 Trace file viewer

HAIP & CHM in 11.2.0.2

From Alejandra Vargas:
http://blogs.oracle.com/AlejandroVargas/entry/rac11_2_0_2_redundant

The pdf link doesn't work tho

Exadata in your laptop !



Kinda trailblazer, first-of-its-kind, whatever you choose to call.
Gokhan Atil is THE MAN !

http://www.gokhanatil.com/2012/01/is-it-possible-to-build-exadata.html

DIY

Jason Arneil's blog posting is the latest knock.
http://jarneil.wordpress.com/2012/01/17/building-an-exadata-compute-node-usb-imaging-drive/

Vishal Gupta's is also helpful:
http://blog.vishalgupta.com/2011/10/23/exadata-storage-compute-node-remote-reimaging/
http://blog.vishalgupta.com/2011/10/15/oracle-exadata-documentation/



All reminds of a  proverb in Tamil:
ஞாயிà®±ை கை மறைப்பாà®°் à®‡à®²்

Translated, it means, you cannot cover the sun using your.hands.


Avoiding 11.2.0.3 pitfalls w.r.t ACFS/ADVM

Oracle Data Applicance - Resource Kit page

THE FUTURE BECKONS - Database as a service - cookbook - DIY & test


To borrow from Nike:
JUST DO IT
http://www.oracle.com/technetwork/oem/cloud-mgmt/em12c-dbaas-cookbook-1432364.pdf#sf2898668


To install 12c, step by step, follow Gokhan Atil's guide:
http://www.gokhanatil.com/2011/10/howto-install-oracle-enterprise-manager.html

If you are totally new to 12c, here's what should bring you upto speed quickly:
Total Cloud Control. Zero to cloud in one day: http://www.oracle.com/technetwork/oem/cloud-mgmt-496758.html

How to create a 2nd standby db from the 1st?! - Interesting from Surachart Opun

Saturday, January 7, 2012

First post from iPhone

Back blogging

Why do we blog? I mean, one can understand if you are blogging on your company site. Answer seems to me like someone might hit upon this and be benefited. Even my little daughter might chance across this blog...when she's big enough like they show in this ad for Google. But foremost, is a primordial & basic impulse of expressing oneself.

Case in hand specifically is, there's a lot good information floating around via twitter.
This could be a permanent place to collect 'em.

So, I am back blogging.

Monday, February 8, 2010

A lovely and beautiful and slow and grey day

I know time will fly. Weeks and months roll on.

"Each day just goes so fast
I turn around , it's past
...
...
A lifetime is so short
A new one can't be bought"
         --- "Love you to", Beatles, The Revolver

We all wanted our workdays to be very short and weekends long.
We wanted to laze around at home and never wanted to come office.

It's strange that I want to come to my office each day and actually wish the day doesn't end so quickly.
I wish I had enjoyed my workplace more. Just 4 more days. Grey and beautiful. Hum of the datacenter seeping thru. On some brilliant days, the sunlight. Today, the greyness.

Time to go home.
But today is a beautiful long day.

Sunday, January 24, 2010

Trying out tamil fonts in blogging

Lexington - என் மகளின் சொந்த à®Šà®°்  !!!
இந்த ஊரை விட்டு செல்ல கஷ்டமாகத்தான் இருக்கிறது.

என்à®±ானுà®®் à®®ீண்டுà®®் வருவோà®®். வந்தால் Mt. Tabor park, kirklevinkle park, jacobson park - இங்கெல்லாà®®் என் பொண்ணுடன் மனைவியுடன் à®®ீண்டுà®®் walking செல்வோà®®்...

தமிà®´ில் வெளிபடுத்த செய்த google-க்கு நன்à®±ி நன்à®±ி

Tuesday, August 25, 2009

Managing ASM Disk Discovery



Most of the times, when everything else fails we turn to setting ASM_DISKSTRING as '/dev/oracleasm/disks/*' and it is almost always guaranteed to work. But this way we know that the ASM Library is not used at all and disk discovery happens outside the Library. Not a good thing. This can be confirmed using kfod (kfod asm_diskstring=ORCL:* disks=all) . So, what should you tinker with then  to use the ASM Lib rather than the SYSTEM library, as shown by the LIBRARY field of v$asm_disk? When doing a migration, you may also get a HEADER_STATUS=UNKNOWN and the errors ORA-15032, ORA-15063 and ORA-15186.

Well, if you are using multipathing s/w, you got to let the disk discovery use just the pseudo-devices and not any of the many single devices (thru' many I/O paths) that form a single pseudo device. If you are using EMC with PowerPath, set it to emcpower. If you are using NetApp with DeviceMapper, set it to dm.


oracle---tlxkrdbrr1.lex.lexmark.com--/home/oracle--orcl1
> su -
Password:
[root@tlxkrdbrr1 ~]# inq
Inquiry utility, Version V7.3-872 (Rev 0.0)      (SIL Version V6.5.0.0 (Edit Level 872)
Copyright (C) by EMC Corporation, all rights reserved.
For help type inq -h.

...............................................................................
....

-------------------------------------------------------------------------
DEVICE         :VEND    :PROD            :REV   :SER NUM    :CAP(kb)
-------------------------------------------------------------------------
/dev/sda       :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/sdb       :NETAPP  :LUN             :7310  :HnanPJQ/   :    15728640
/dev/sdc       :NETAPP  :LUN             :7310  :HnanPJQ/   :    20971520
/dev/sdd       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sde       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdf       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdg       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdh       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdi       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdj       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdk       :NETAPP  :LUN             :7310  :HnanPJRN   :     2097152
/dev/sdl       :NETAPP  :LUN             :7310  :HnanPJQ/   :    15728640
/dev/sdm       :NETAPP  :LUN             :7310  :HnanPJQ/   :    20971520
/dev/sdn       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdo       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdp       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdq       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdr       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sds       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdt       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdu       :NETAPP  :LUN             :7310  :HnanPJRN   :     2097152
/dev/sdv       :NETAPP  :LUN             :7310  :HnanPJQ/   :    15728640
/dev/sdw       :NETAPP  :LUN             :7310  :HnanPJQ/   :    20971520
/dev/sdx       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdy       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdz       :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-0      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-1      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-2      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-3      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-4      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-5      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-6      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-7      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-8      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-9      :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/sdaa      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdab      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdac      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdad      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdae      :NETAPP  :LUN             :7310  :HnanPJRN   :     2097152
/dev/sdaf      :NETAPP  :LUN             :7310  :HnanPJQ/   :    15728640
/dev/sdag      :NETAPP  :LUN             :7310  :HnanPJQ/   :    20971520
/dev/sdah      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdai      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdaj      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdak      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdal      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdam      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdan      :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/sdao      :NETAPP  :LUN             :7310  :HnanPJRN   :     2097152
/dev/sdap      :DGC     :RAID 5          :0226  :65000091   :    20971520
/dev/sdaq      :DGC     :RAID 5          :0226  :69000093   :   157286400
/dev/sdar      :DGC     :RAID 5          :0226  :68000083   :    10485760
/dev/sdas      :DGC     :RAID 5          :0226  :65000091   :    20971520
/dev/sdat      :DGC     :RAID 5          :0226  :69000093   :   157286400
/dev/sdau      :DGC     :RAID 5          :0226  :68000083   :    10485760
/dev/sdav      :DGC     :RAID 5          :0226  :65000091   :    20971520
/dev/sdaw      :DGC     :RAID 5          :0226  :69000093   :   157286400
/dev/sdax      :DGC     :RAID 5          :0226  :68000083   :    10485760
/dev/sday      :DGC     :RAID 5          :0226  :65000091   :    20971520
/dev/sdaz      :DGC     :RAID 5          :0226  :69000093   :   157286400
/dev/sdba      :DGC     :RAID 5          :0226  :68000083   :    10485760
/dev/dm-10     :DELL    :PERC 6/i        :1.21  :           :   142737408
/dev/dm-11     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-12     :NETAPP  :LUN             :7310  :HnanPJQ/   :    15728640
/dev/dm-13     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-14     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-15     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-16     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-17     :NETAPP  :LUN             :7310  :HnanPJRN   :     2097152
/dev/dm-18     :NETAPP  :LUN             :7310  :HnanPJQ/   :    20971520
/dev/dm-19     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-20     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-21     :NETAPP  :LUN             :7310  :HnanPJQ/   :    20971520
/dev/dm-22     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-23     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-24     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/dm-25     :NETAPP  :LUN             :7310  :HnanPJRN   :     2097152
/dev/dm-27     :NETAPP  :LUN             :7310  :HnanPJQ0   :     5242880
/dev/emcpowera :DGC     :RAID 5          :0226  :65000091   :    20971520
/dev/emcpowerb :DGC     :RAID 5          :0226  :69000093   :   157286400
/dev/emcpowerc :DGC     :RAID 5          :0226  :68000083   :    10485760
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm listdisks
ASMDISK01
ASMDISK02
[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm querydisks ASMDISK01 ASMDISK02
Usage: /etc/init.d/oracleasm {start|stop|restart|enable|disable|configure|createdisk|deletedisk|querydisk|listdisks|scandisks|status}
[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm querydisk ASMDISK01 ASMDISK02
Disk "ASMDISK01" is a valid ASM disk on device [66, 145]
Disk "ASMDISK02" is a valid ASM disk on device [66, 161]
[root@tlxkrdbrr1 ~]# cat /proc/partitions | egrep '145|161'
   8   161    2095662 sdk1
  65   145    5238597 sdz1
  65   161    5238597 sdaa1
  66   145   20971504 sdap1  <====== This is totally wrong. The ASM disk should not be individual
  66   161  157284351 sdaq1  <====== disks. It should on the multipathed device
[root@tlxkrdbrr1 ~]# cat /proc/partitions | egrep -i emc
120    32   10485760 emcpowerc
120    33    3001328 emcpowerc1
120    34    3001344 emcpowerc2
120    35    4483072 emcpowerc3
120    16  157286400 emcpowerb
120    17  157284351 emcpowerb1 <===== ASMDISK02 SHOULD IDEALLY BE ON THIS
120     0   20971520 emcpowera
120     1   20971504 emcpowera1 <===== ASMDISK01 SHOULD IDEALLY BE ON THIS
[root@tlxkrdbrr1 ~]# cp /etc/sysconfig/oracleasm /etc/sysconfig/oracleasm.bk_jc_08_24
[root@tlxkrdbrr1 ~]# cat /etc/sysconfig/oracleasm
#
# This is a configuration file for automatic loading of the Oracle
# Automatic Storage Management library kernel driver.  It is generated
# By running /etc/init.d/oracleasm configure.  Please use that method
# to modify this file
#

# ORACLEASM_ENABELED: 'true' means to load the driver on boot.
ORACLEASM_ENABLED=true

# ORACLEASM_UID: Default user owning the /dev/oracleasm mount point.
ORACLEASM_UID=oracle

# ORACLEASM_GID: Default group owning the /dev/oracleasm mount point.
ORACLEASM_GID=oinstall

# ORACLEASM_SCANBOOT: 'true' means fix disk perms on boot
ORACLEASM_SCANBOOT=true

# ORACLEASM_CLEARBOOT: 'true' means clean old disk perms on boot
ORACLEASM_CLEARBOOT=true

# ORACLEASM_SCANORDER: Matching patterns to order disk scanning
ORACLEASM_SCANORDER=dm

# ORACLEASM_SCANEXCLUDE: Matching patterns to exclude disks from scan
ORACLEASM_SCANEXCLUDE=

[root@tlxkrdbrr1 ~]# vi /etc/sysconfig/oracleasm
[root@tlxkrdbrr1 ~]# cat /etc/sysconfig/oracleasm
#
# This is a configuration file for automatic loading of the Oracle
# Automatic Storage Management library kernel driver.  It is generated
# By running /etc/init.d/oracleasm configure.  Please use that method
# to modify this file
#

# ORACLEASM_ENABELED: 'true' means to load the driver on boot.
ORACLEASM_ENABLED=true

# ORACLEASM_UID: Default user owning the /dev/oracleasm mount point.
ORACLEASM_UID=oracle

# ORACLEASM_GID: Default group owning the /dev/oracleasm mount point.
ORACLEASM_GID=oinstall

# ORACLEASM_SCANBOOT: 'true' means fix disk perms on boot
ORACLEASM_SCANBOOT=true

# ORACLEASM_CLEARBOOT: 'true' means clean old disk perms on boot
ORACLEASM_CLEARBOOT=true

# ORACLEASM_SCANORDER: Matching patterns to order disk scanning
#ORACLEASM_SCANORDER=dm
ORACLEASM_SCANORDER=

# ORACLEASM_SCANEXCLUDE: Matching patterns to exclude disks from scan
ORACLEASM_SCANEXCLUDE=

[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm restart
Unmounting ASMlib driver filesystem:                       [  OK  ]
Unloading module "oracleasm":                              [  OK  ]
Loading module "oracleasm":                                [  OK  ]
Mounting ASMlib driver filesystem:                         [  OK  ]
Scanning system for ASM disks:                             [  OK  ]
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm querydisk ASMDISK01 ASMDISK02
Disk "ASMDISK01" is a valid ASM disk on device [66, 145]  <===== STILL WRONG
Disk "ASMDISK02" is a valid ASM disk on device [66, 161]
[root@tlxkrdbrr1 ~]# vi /etc/sysconfig/oracleasm
[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm restart
Unmounting ASMlib driver filesystem:                       [  OK  ]
Unloading module "oracleasm":                              [  OK  ]
Loading module "oracleasm":                                [  OK  ]
Mounting ASMlib driver filesystem:                         [  OK  ]
Scanning system for ASM disks:                             [  OK  ]
[root@tlxkrdbrr1 ~]# /etc/init.d/oracleasm querydisk ASMDISK01 ASMDISK02
Disk "ASMDISK01" is a valid ASM disk on device [120, 1]
Disk "ASMDISK02" is a valid ASM disk on device [120, 17]
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]# ############### THATABOY
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]#
[root@tlxkrdbrr1 ~]# cat /etc/sysconfig/oracleasm
#
# This is a configuration file for automatic loading of the Oracle
# Automatic Storage Management library kernel driver.  It is generated
# By running /etc/init.d/oracleasm configure.  Please use that method
# to modify this file
#

# ORACLEASM_ENABELED: 'true' means to load the driver on boot.
ORACLEASM_ENABLED=true

# ORACLEASM_UID: Default user owning the /dev/oracleasm mount point.
ORACLEASM_UID=oracle

# ORACLEASM_GID: Default group owning the /dev/oracleasm mount point.
ORACLEASM_GID=oinstall

# ORACLEASM_SCANBOOT: 'true' means fix disk perms on boot
ORACLEASM_SCANBOOT=true

# ORACLEASM_CLEARBOOT: 'true' means clean old disk perms on boot
ORACLEASM_CLEARBOOT=true

# ORACLEASM_SCANORDER: Matching patterns to order disk scanning
#ORACLEASM_SCANORDER=dm
ORACLEASM_SCANORDER=emcpower

# ORACLEASM_SCANEXCLUDE: Matching patterns to exclude disks from scan
ORACLEASM_SCANEXCLUDE=

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