361 Lotus blogs updated hourly. Who will post next? Home | Downloads | Events | Pods | Blogs | Search | myPL | About 
 
Latest 7 Posts
60+ Gig - No Sweat!
Mon, Nov 24th 2014 192

Sun, Nov 23rd 2014 118
Save administration time and money - It's a case of getting what you pay for!
Wed, Nov 19th 2014 123
DLP for Traveler - stop sensitive data leaking through Traveler
Mon, Nov 10th 2014 206
If you're going to do it, Save money and Switch to Exchange, don't migrate!
Thu, Nov 6th 2014 234
Do you have more then 7,792,058 fragments on your data volume?
Tue, Nov 4th 2014 163
Does it really make sense to defrag Domino data on a SAN or in a VM ?
Thu, Oct 30th 2014 262
Top 10
Does it really make sense to defrag Domino data on a SAN or in a VM ?
Thu, Oct 30th 2014 262
If you're going to do it, Save money and Switch to Exchange, don't migrate!
Thu, Nov 6th 2014 234
DLP for Traveler - stop sensitive data leaking through Traveler
Mon, Nov 10th 2014 206
60+ Gig - No Sweat!
Mon, Nov 24th 2014 192
Do you have more then 7,792,058 fragments on your data volume?
Tue, Nov 4th 2014 163
Save administration time and money - It's a case of getting what you pay for!
Wed, Nov 19th 2014 123

Sun, Nov 23rd 2014 118
Flashback Friday -> How to use the Cluster Analysis tool to run a Cluster Analysis and spot problems
Thu, Oct 9th 2014 106
Who out there is using DBMT ?
Thu, Oct 9th 2014 99
The ID Vault may not be doing what you think it is !
Fri, May 27th 2011 87


Not all defragging engines are equal
   

I've written about this before, but it has come up a couple of times this week - Not all defraggers are the same.
 
Some are free, some cost money, some have very intelligent algorithms, some aren't so good. Tweaking and optimising a defragging algorithm takes time. Time typically has a cost associated with it.
 
One thing we've learnt over the last three years is that Domino places some rather unique requirements on a defragmention algorithm. The following rules seem to always apply:
  • the longer the server has been running, the worse state it is in.
  • available freespace is likely to be highly fragmented.
  • it is not unusual to have highly fragmented multi gigabyte database. As a rule, multi gigabyte files (30GB+) outside of Domino are fairly uncommon.
  • it is difficult to defrag files that are constantly changing.
In an environment where you have a lot of small databases with a lot of disk space available, the job of a defrag engine is rather easy.
 
As you move up the scale, and enter the real world of Domino it gets harder and harder, and the algorithm used by the defrag engine needs to be smarter.
 
I've been asked a number of times, why not just use the 'Free stuff'. Free defragging products typical are:
  • not designed from the ground-up to meet the needs I outlined above.
  • perform relatively simple cluster moves.
  • do not handle multi-gigabyte, constaintly changing files very well.
  • are a simple wrapper around a freeware utility that falls in one of the categories above.
I'm not saying they are bad, or don't work, but what I will say is this - developing a Domino specific defragging engine has been challenging, very time consuming and costly.
 
Which brings up a well known idiom, "You get what you pay for"
 
Given all this, we are please to announce the availability of Defrag.NSF version 2.06. We have done a significant amount of fine-tuning to the defragging engines for this update and we are excited about the results we're obtaining.
 
Put Defrag.NSF to work on your servers today with a 30 day, supported Free Trial and see for yourself. Register here


---------------------
http://ab1osborne.blogspot.com/2011/03/not-all-defragging-engines-are-equal.html
Mar 31, 2011
10 hits



Recent Blog Posts
192


60+ Gig - No Sweat!
Mon, Nov 24th 2014 8:45p   Adam Osborne
Yesterday's Blog title didn't get picked up by Planet Lotus... so I've reposted it for anyone that maybe interested: http://ab1osborne.blogspot.com.au/2014/11/recently-we-were-contacted-by-customer.html [read] Keywords: lotus planet lotus
118



Sun, Nov 23rd 2014 11:05p   Adam Osborne
Recently we were contacted by a customer who had been using Defrag.NSF on their servers but had stopped some time ago and realised things were starting to go downhill. This ended up being a great test case/exercise and we managed to get some very telling screenshots off the server, clearly showing the deterioration and subsequent improvement once we got things back on track. It turned out about a year had passed since the last Health Check had been run and things had definitely gotten worse, f [read] Keywords: domino database server
123


Save administration time and money - It's a case of getting what you pay for!
Wed, Nov 19th 2014 10:45a   Adam Osborne
Despite it's name Defrag.NSF is actually a super efficient and time-saving database maintenance "Control Centre", that does a heck of a lot more than defragging. It's integrated with the Domino Admin client, offers centralised scheduling and automation for DBMT, Compacting, Fixups, Health Reports, DAOS enablement (Watch this space for a demo of this great feature) and all fully integrated of course with our revolutionary, purpose built for Domino, defragging engine. Obviously with this ki [read] Keywords: admin administration domino database server
206


DLP for Traveler - stop sensitive data leaking through Traveler
Mon, Nov 10th 2014 5:46p   Adam Osborne
In a world where BYOD strategies are becoming more and more relevant, Preemptive’s DLP for Traveler provides an integrated solution for organisations to ensure valuable email data and attachments are not exposed to remote devices that cannot be secured by the organisation. DLP for Traveler inspects email destined for the mobile device for keywords and sensitivity markings in the subject line, and tells Traveler to block the content as appropriate. All the information on DLP for Traveler can [read] Keywords: traveler email mobile
234


If you're going to do it, Save money and Switch to Exchange, don't migrate!
Thu, Nov 6th 2014 5:06p   Adam Osborne
Globally more and more customers are moving from Domino to Exchange or some other cloud based solution. The migration process typically comes at a significant cost, and requires the purchase of expensive migration tools that are then just 'thrown away' .There's a better way. A decade ago Preemptive Consulting developed an Email Archiving Vault that can store ALL email moving within an organisation. It provides full auditing capabilities and allows end users to retrieve their own email. The V [read] Keywords: domino archiving consulting email exchange exchange outlook smtp
163


Do you have more then 7,792,058 fragments on your data volume?
Tue, Nov 4th 2014 8:05p   Adam Osborne
A few years back we ran a 'Most Fragmented' competition and found a Domino Server that had 7,792,058 fragments on it's data volume !!! Can you imagine what that was doing to performance and backup times ? Anyway, we'd like to do it again and see if there's anyone else out there we can help get their Server into shape. Here's what we'd love you to try: - Download a copy of a free Defrag Analyse product from here - Install it and run a Health Check as per the included instructions. [read] Keywords: domino server




262


Does it really make sense to defrag Domino data on a SAN or in a VM ?
Thu, Oct 30th 2014 3:28p   Adam Osborne
We hear this a lot, "My ESX admins say we don't need to defrag Domino because it is running on a virtual platform", or even this chestnut, "Our storage is SAN based and our SAN admins are saying we don't need to defrag Domino". So does it really make sense to defrag Domino in these circumstances? Takes deep breath!....... Yes it does make sense to defrag your virtualized Domino servers running in a VMWare environment (or SAN connected) and we have many Defrag.NSF customers running their D [read] Keywords: administration domino ibm lotus server vm vmware
106


Flashback Friday -> How to use the Cluster Analysis tool to run a Cluster Analysis and spot problems
Thu, Oct 9th 2014 11:25p   Adam Osborne
From Thursday, August 9, 2012 - > How to - Use the Cluster Analysis tool to run a Cluster Analysis and spot problems [read] Keywords:
99


Who out there is using DBMT ?
Thu, Oct 9th 2014 11:05p   Adam Osborne
The latest build of Defrag.NSF includes a new feature that can dramatically cut down the amount of work DBMT does, you can read all about it here and here. When working on this feature we did wonder one thing, Who out there is using DBMT ? Please take a moment to answer our poll on the right. We will share the answers when they come in. [read] Keywords:
81


DBMT compact optimization in action.
Fri, Aug 29th 2014 12:45a   Adam Osborne
Here is a video showing the new DBMT compact optimization in action. Let us know if you've got any questions. We hope you like it. [read] Keywords:




Created and Maintained by Yancy Lent - About - Blog Submission - Suggestions - Change Log - Blog Widget - Advertising - Mobile Edition