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Domino Diva

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Highly recommended free DAOS education module

Kim Greene |   | Tags:  administration training education daos | Comments (0)  |  Visits (587)
 A colleague and friend of mine, Amy Hoerle, has put together a comprehensive education module for DAOS.  Amy works in the IBM Lotus support center at IBM Rochester, MN and is extremely knowledgeable. While the title of the education module is "Introduction to Domino Attachment Object Service (DAOS), it is definitely more than an introduction.  Amy covers not only what DAOS is and how to set it up, she also provides insights into items that could easily be overlooked such as:
 
  • ensuring all databases use the same compression algorithm as that determines whether duplicate attachments will really be consolidated into one .nlo file
  • ensuring transaction logging isn't disabled via notes.ini settings
  • how restoring mail files is affected by daos and how to determine which .nlo files need to be restored with a mail file

She also covers some "What happens if" scenarios and provides the details on how to resolve various issues you may run into with your DAOS implementation.  

There is some Backup Recovery and Media Services (BRMS) information in the module that is specific to the IBM i (iSeries), if you're not using this platform, just fast forward past that section, as there is a lot of great content beyond that section of the education module.



A couple of helpful notes related to viewing this education module:

  • Crank up the volume!!  The audio can be hard to hear unless you have the volume turned up to the max.
  • The module can take a while to load in Firefox and IE, however it loads ASAP in Chrome.  If you haven't already tried out Chrome, I highly recommend it.

Enjoy Amy's DAOS education module :)
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Hotfix required for DAOS for 8.5.1 on IBM i (iSeries)

Kim Greene |   | Tags:  daos iseries ibm_i as_400 hotfix 8.5.1 | Comments (2)  |  Visits (477)
In working with a customer that is planning to upgrade their server this coming weekend to 8.5.1, there is some confusion regarding whether or not any hotfixes are required for 8.5.1 on the iSeries.  The answer is YES if you are planning to implement DAOS.  There is an issue with the catalog not remaining synchronized. 

The issue was written up in SPR #:
AHOE7W5RTL

There is also a knowledge base article detailing the issue, IBM i: DAOS catalog cannot stay synchronized

If you are implementing DAOS on Domino 8.5.1 on the iSeries, make sure you call IBM support and ask for this specific hotfix.
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Remember the program conversion when loading 8.5.x

Kim Greene |   | Tags:  v5r4 install iseries domino program_conversion | Comments (2)  |  Visits (621)
 I want to remind everyone that the Lotus Domino 8.5.x installations are saved to release V6R1 for the iSeries.  I recently worked with a customer to upgrade their environment to 8.5 and installation of the Domino server code took over 3 hours.  Their OS level is V5R4 and they have an older model 810. 

Once the installation was underway, the CPU utilization on the iSeries server hovered in the 70-95% range for the duration of the installation of the Domino 8.5 code.  There were 3 jobs consuming the majority of the CPU:

LDFX01
LDFX02
LDFX04

These LDFX jobs are the jobs associated with doing the program conversion.  Interestingly enough, they were only visible through the WRKSYSACT command, they did not show up in WRKACTJOB.  This is how the good old CFINIT jobs behave as well.  You have to have the performance tools loaded on your iSeries server to use the WRKSYSACT command.

Beware when installing Domino 8.5.x on a V5R4 system, the program conversions will increase installation time.  While my customer experienced an increase of 3 hours+, newer, faster systems will see shorter program conversion times.  One the newer hardware, the program conversions can be done in around 10 minutes.

Make sure you plan for the added time the installation will take due to the program conversion and ensure you don't decide to do the installation during production hours because of the significant increase in CPU consumption.  The multi-version capability has made this a regular practice in a number of iSeries shops.  While this normally has no impact on production applications, the program conversion can cause performance concerns to other applications running on the iSeries server.

The program conversion will also happen when installing 8.5.x hotfixes on a V5R4 system.
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