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Oracle-related Platform, Storage and Clustering Topics (with the occasional rant)

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Thursday, July 17, 2008

Oracle Database 10g 10.2.0.4 Cannot Boot a Large SGA on AMD Servers Running Linux

In the comment thread of my recent blog entry entitled Of Gag-Orders, Excitement, and New Products, a fellow blogger, Jeff Hunter wrote: I’d be happy if the major innovation was being able to run a 10.2.0.4 16G SGA on x86_64. He offered a link to a thread on his blog where he has been chronicling his unsuccessful [...]
posted at 06:51 PM. tags: .

Thursday, July 10, 2008

Oracle Database Doesn’t Use Hugepages Correctly. What’s Better, Reserved or Used?

I’ve received questions about HugePages_Rsvd a few times in the last few months. After googling for HugePages_Rsvd +Oracle and not seeing a whole lot, I thought I’d put out this quick blog entry. Here I have a system with 600 hugepages reserved: # cat /proc/meminfo | grep HugePages HugePages_Total: 600 HugePages_Free: 600 HugePages_Rsvd: [...]
posted at 01:50 PM. tags: .

Wednesday, July 09, 2008

I Ain’t Not Too Purdie Smart, But I Know One Thing For Certain: MAA Literature is Required Reading!

You Need to See What These Folks Have to Say It is hereby official! I absolutely must put out a plug for the MAA team and the fruits of their labor now that I have personally worked with them on a project. I’m sure it’s no credit to them, per se, but honestly, this team is [...]
posted at 06:51 PM. tags: .

Tuesday, July 08, 2008

I Know Nothing About Data Warehouse Appliances and Now, So Won’t You - Part III. Tuning Data Warehouse Appliances.

I spent a little time last night perusing Stuart Frost’s blog (CEO, DATAllegro) and learned something new. Microsoft, it appears, has ported Windows and SQL Server to platforms beyond x86, x86_64 and IA64. I quote: Database vendors such as Oracle and Microsoft have to build their software to run on any hardware. Hence there are a [...]
posted at 01:51 PM. tags: .

Sunday, July 06, 2008

I Know Nothing About Data Warehouse Appliances and Now, So Won’t You - Part II. DATAllegro Supercharges Fibre Channel Performance.

BLOG CORRECTION: The next to the last paragragh has been edited to offer more clarity on which components impose limits on I/O transfer sizes. I’m going to tell you something nobody else knows. You’ve heard it here first. Ready? Here’s the deal, no more than 800 MB/s can pass through two 4 Gb Fibre Channel HBAs [...]
posted at 07:49 PM. tags: .

Thursday, July 03, 2008

I Know Nothing About Data Warehouse Appliances, and Now, So Won’t You - Part I

I’ve been watching all these come-lately DW/BI technologies for a while now-especially the ever-so-highly-revered “appliances.” I’m also interested in columnar orientation as my past posts on columnar technology (e.g., columnar technology I, columnar technology II) will attest. Rows and Columns, or Columns and Rows? I don’t know, because in that famed Unfrozen Caveman Lawyer style, [...]
posted at 12:53 PM. tags: .

Wednesday, July 02, 2008

Little Things Doth Crabby Make Part V. Oracle Professionals Have No Experience Beyond Oracle. Didn’t You Know That?

Learning “New and Exciting” Things About Really Old Stuff …that’s what Max Kanat-Alexander seems to be doing based upon his recent Oracle-bashing rant. Now, I’m not calling Max to the mat because I’ve learned that the Web grants virtual get out of jail free cards to people earning a living developing free stuff, and I have [...]
posted at 12:52 PM. tags: .

Tuesday, July 01, 2008

Little Things Doth Crabby Make Part IV. Shared Disk for Oracle11g Clusterware: Not Shared Unless Writable.

While doing an install of 11g x86_64 11.1.0.6 Clusterware today I hit a problem I’ve seen before but had to think for a moment about what was the cause of the error. I figured if I had to scratch my head on this one, someone, someday would likely be out googling for the answer. Here [...]
posted at 02:52 PM. tags: .

Friday, June 27, 2008

Words Matter–Words Proven By Dataupia.

For sentimental reasons I’ve taken interest in Dataupia. See, their offices are in One Alewife Center, Cambridge, Mass and due to my background in NUMA technology I harbor sentimental feelings for the MIT Alewife System, which, along with DASH were truly the front-front runners in early non-commercial implementations of NUMA technology. However, beyond that cursory [...]
posted at 10:00 AM. tags: .

Thursday, June 26, 2008

Of Gag-Orders, Excitement and New Products…

In the transcript of yesterday’s earnings call, Larry Ellison said: We are not going to sit on our laurels; we have a major database innovation that we will announce in September of this year. It is going to be a very big and important announcement for us so we are not standing still in database. I know, [...]
posted at 10:00 AM. tags: .

Friday, June 13, 2008

Don’t Bother Trying Large-Scale Storage Without Fibre Channel SAN Technology

I’m not going to hide my true feelings any longer. I hate Fibre Channel SANs. Yes, I know, I haven’t exactly hidden my position on that topic, considering all the SAN related postings I’ve made. Look, Fibre Channel SAN was great technology for connecting large numbers of disks to a single, large SMP. I just don’t [...]
posted at 11:20 AM. tags: .

Thursday, June 12, 2008

The Rumors of My Demise

…have been greatly exaggerated. However, I certainly have not been blogging as frequently as I’d like. The fact is that I am heads down doing performance work on a product that I cannot speak about until Oracle OpenWorld. Larry Ellison is happy to launch the product at the show and I shan’t steal thunder! I did [...]
posted at 08:21 AM. tags: .

Wednesday, April 02, 2008

IOPS in a Very High-End NFS Environment?

Since I’m on site at a Beta customer (testing the product I work on at Oracle), this will be a quick blog entry. I’ve been meaning to direct folks to Gear6 for quite some time now. I have no stake in Gear6, so this is not a shameless plug. I think they solve interesting problems [...]
posted at 10:54 AM. tags: .

Monday, March 31, 2008

Oracle Clusterware for Non-Real Application Clusters Purposes.

Quite some time back I made a blog entry about deploying Oracle Clusterware for non-RAC purposes. As I pointed out in that entry, there were license ramifications. That was then, this is now. In this press release about Oracle Clusterware, Oracle is announcing that Oracle Enterprise Linux (with Unbreakable Linux Support) can deploy Oracle Clusterware to [...]
posted at 09:53 AM. tags: .

Friday, March 28, 2008

Little Things Doth Crabby Make Part III. Non-Erroring Errors and Erroneous Experiments.

No worries, we won’t have to lower the Cone of Silence. True, you will see use of an “underbar” init.ora parameter in this post, but its use is not the central theme. No, no Silver Bullets here. This is another post in the Little Things Doth Crabby Make series. I routinely brag about the sophistication level [...]
posted at 12:53 PM. tags: .

Monday, March 24, 2008

Attempted Murder of a 4-Socket AMD Opteron Server with RHEL4. Oracle Can’t Kill It.

But my, oh my, how I’ve tried. OK, I guess my new name is Fan Boy. I know for a fact that I’ve been pretty relentless on this particular server for over 100 days of its current 215-day life. -sh-3.00$ cat /etc/redhat-release Red Hat Enterprise Linux AS release 4 (Nahant Update 3)
-sh-3.00$ uptime 14:41:17 up 215 days, [...]
posted at 11:52 AM. tags: .

Friday, March 21, 2008

Things You Do With a Modicum of Trepidation

There are 120 spindles downwind of this….drumroll please…. $ asmcmd ASMCMD> ls SDATA1/ SDATA2_1/ SDATA2_2/ SDATA2_3/ ASMCMD> rm -fr * ASMCMD> Eek! In other news, I just learned that Greg Rahn is about to get his hands on a set of HP DL580 G5 (Tigerton goodies). I’d sure like to get Silly Little Benchmark numbers from that sweetheart of a system…wish in one hand, you-know-what [...]
posted at 01:50 PM. tags: .

Wednesday, March 19, 2008

Oracle BI Tools on Teradata.

Oracle’s acquisition spree has wound up producing odd bedfellows.
posted at 09:49 AM. tags: .

Tuesday, March 18, 2008

Data Center? We Don’t Want No Stinkin’ Data Center.

I’ve often wondered why companies really want to own their computers. HP has voiced the same rhetorical question by launching AIaaS. Why Do They Put Those Data Centers There? But Atlanta? Is power really that cheap in Atlanta? It must be all that cheap hydroelectric power down there. What’s This Have To Do With Oracle? This is an Oracle-related [...]
posted at 11:52 AM. tags: .

Wednesday, March 12, 2008

NetApp. New Name, Same Stuff.

Network Appliance has renamed their company a nickname. That just seems strange to me. Different name, same stuff. And, yes, NFS works nicely for Oracle Database. The newly-branded NetApp Maybe Oracle should be renamed/rebranded to “scott/tiger?”
posted at 12:49 PM. tags: .
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