Tuesday, June 18, 2019

Another way to consolidate free space and help DBMT work optimally

Further to our post on getting the most out of DBMT by ensuring your free space is optimized, I'd like to point to a video on how to consolidate free space with our Defrag.NSF product.

Click here to see the video. 

Remember, DBMT needs unfragmented free space to be as efficient as possible.

Wednesday, June 12, 2019

Are you getting the best from DBMT?

Are you getting the best results from DBMT? The answer to that question will depend on the state of the freespace of the Domino Data Directory, as seen by the server OS. In an attempt to avoid fragmenting nsf files during it's compact process DBMT had a pre-allocation feature included, BUT.... this requires clean contiguous freespace. Recently while helping a customer deal with some performance and fragmentation issues we encountered a perfect example of how DBMT does not work well if contiguous freespace is limited or non-existent (unfortunately a very common scenario).

Although we are discussing a Domino V10 server the situation had become very similar to that described in John Paganetti's excellent presentation from Connect 2014 "ID104 - Best Practices for Upgrading IBM Notes and Domino 9.x" which referenced our R&D in this area and included a link to our blog.

However, once we ran a DDO Health Report on the V10 server the issue was made crystal clear, even though DBMT was configured on the server the Domino Data directory consisted of heavily fragmented freespace so DBMT even with pre-allocation, was prevented from doing it's job properly, it needed some help because the freespace in the Data directory was a mess.

Before:- this was Domino's Data directory (D:\). (DBMT was trying, but it was clearly not delivering it's full potential). Notice the largest chunk of contiguous freespace is just 1040 MB, this is all DBMT has to work with and cripples it's potential effectiveness, leading to even more fragmented nsf files.

After:- The result after DDO had performed a Freespace Consolidation on D:\ and Optimised the nsf files using it's DBMT integration. DBMT has a large chunk of contiguous freespace to work in (113,886 MB). It can now actually work properly as designed.

The Golden Rule Is This:
If the freespace is scrambled then DBMT preallocation is going to produce fragmented files, It can only deliver optimum results if contiguous freespace is available, and that's only going to happen if something is actively defragmenting it.  And for that we recommend Defrag.NSF or DDO (shameless product plug).

Tuesday, June 4, 2019

Upgraded to V10? Get the Free Domino Fragmentation Analyzer

Now that you have upgraded Domino to V10 it's time to get the best performance possible and to do that you need to know what you are dealing with. Find out what DFA (Domino Fragmentation Analyzer) can tell you and once you know that you can take appropriate action to get the most from your investment.

DFA is a Free, easy to use tool created by Preemptive Consulting that runs in a Command Prompt and will quickly analyze Domino and produce a comprehensive report of fragmented nsf files. The DFA concentrates only on analyzing nsf files and will highlight the following:

- Total number of nsf files fragmented.
- How many fragments each of those files are in.
- The most fragmented nsf file.
- Freespace info for the drive hosting the Domino Data directory.
- Number of freespace fragments.
- Size of the largest freespace fragment.

This tool will highlight performance robbing fragmentation as the Operating System hosting Domino sees it. In response to this fragmentation the Operating System generates additional I/O to deal with it regardless of high powered back-end storage type, SAN, SSD, or virtualization product. When the OS generates the additional I/O (Split I/O) to deal with the reported fragmentation you are not getting the full benefit from whatever storage solution the server is attached to since the performance penalty is paid at the O/S level, before the storage is accessed. It is important to understand this is all part of an overall system and the reported fragmentation will severely penalise your server I/O, making Domino less responsive, increasing Backup times, and creating a weak performance link in the overall system.

Get it here: https://www.preemptive.com.au/domino-fragmentation-analyzer/

Thursday, May 9, 2019

Notes 10 Sametime font corruption issues

Since moving to Notes 10, the Sametime embedded client is having all sorts of font issues (as does the designer client). Anyone else seeing this ?

Friday, April 12, 2019

IBM Australia - Where the bloody hell are you?

More and more Australian Domino customers are jumping ship (are any staying?)  and IBM Australia is missing in action. Where the bloody hell are you?

Have you already left the building ?

Tuesday, March 12, 2019

IBM Domino 10.0.1 bug create new replicas acts like a move

Is anyone else having the issue with Domino 10.0.1 where the create new relicas in the Admin client or via AdminP acts like a move and deletes the original database.

I understand this has been reported and being tracked as SPR SMOYB9JMCN but I can't find any updates on it.

Wednesday, December 5, 2018

Defrag.NSF Version 10 is now in the Global Solutions Directory

Thanks, IBM for making this directory available. It helps Domino business partners spread the word that we're here and still building solutions for this fantastic platform.

 Check out our offering