Comments for Michael Phillips Blog

Comment on How to remove a Persistent Reservation on a DS4700 by Jeff

Jeff — Tue, 03 Jan 2012 21:30:49 +0000

Nice work. This helped me.

Comment on HyperV Integration Services: Fatal error during installation by Armin

Armin — Mon, 07 Nov 2011 19:29:21 +0000

try the following solution (worked for me) if the problem is not related to wdf01000.sys/wdfldr.sys:

1.Click Start, click Run, type cmd, and then click OK.
2.At the command prompt, type the following commands, and then press ENTER after each line:
net stop cryptsvc
ren %systemroot%\System32\Catroot2 oldcatroot2
net start cryptsvc
exit

http://www.brain-cluster.com/virtualization/hyper-v/hyper-v-integration-services-installation-problem/

Comment on HyperV Integration Services: Fatal error during installation by HP

HP — Thu, 20 Oct 2011 06:31:37 +0000

You are a legend. I click on the first google suggesstion which brought me to this site which has saved my life.

Thank you very much sir

Comment on HyperV Integration Services: Fatal error during installation by Tim

Tim — Fri, 30 Sep 2011 13:25:46 +0000

This worked! Thanks for posting it!

Comment on Replica disk threshold exceeded, or Recovery Point Volume threshold exceeded by Michael

Michael — Fri, 16 Sep 2011 12:51:14 +0000

Essentially, all DPM is doing is looking at the used space for the Recovery Point Volume. The only problem I have seen with this is when DPM 2007 had the issue where it wouldn’t remove expired recovery points. I posted about that here: http://nukeitmike.com/blog/2009/04/12/dpm-does-not-remove-expired-recovery-points/ and a follow up to that here: http://nukeitmike.com/blog/2009/08/07/follow-up-to-the-dpm-recovery-point-expiration-issues/

Hope this helps.

Comment on Replica disk threshold exceeded, or Recovery Point Volume threshold exceeded by Dan Jordan

Dan Jordan — Thu, 15 Sep 2011 17:20:55 +0000

Michael, Thanks for your response. The part about the RPV having the potential to be many time the size of the replica volume is particularly helpful.

Is the bottom line that the system internally calculates the 90% threshold and that DPM admins won’t always have access to the figures the system used in that calculation?

Comment on Replica disk threshold exceeded, or Recovery Point Volume threshold exceeded by Michael

Michael — Thu, 15 Sep 2011 17:10:46 +0000

Dan,

DPM creates two volumes for each protected item (database, VM, file share, etc). The first volume is the Replca Volume. This is where DPM stores the most recent recovery point view of the protected member. The other volume is the Recovery Point Volume. This is where the historical changes are saved. Depending on what you are protecting, how long you are protecting it, how often you create recovery points, and how much data change there is between recovery points, the Recovery Point Volume can be many times the size of the Replica Volume. In my experience, active Databases and System State are the most space consuming. Large file servers tend to have much less churn.
Hope this helps.

Michael

Comment on Replica disk threshold exceeded, or Recovery Point Volume threshold exceeded by Dan Jordan

Dan Jordan — Tue, 13 Sep 2011 17:57:23 +0000

I’m familiar with the process of making the recovery point volume a little bigger, but sometimes I can’t make sense of *what* has exceeded the 90% threshold. For instance, right now my “data size” is 1.47GB, my “Replica Volume” is 1.85GB, and my “Recovery Point Volume” is 11.52GB, and yet it tells me to allocate more disk space for the *recovery point volume*. Why? What has “exceeded the 90% threshold”? I want to understand how it is making this calculation.

Comment on Follow up to the DPM recovery point expiration issues by DPM 2010 Deleting Old Restore Points | BS From My Mind

DPM 2010 Deleting Old Restore Points | BS From My Mind — Wed, 24 Aug 2011 15:51:22 +0000

[...] Ok, so for the most part this happens automagically and you won’t have to mess with it at all. However, for some reason I found that a few recovery points I had manually created with Microsoft Support while troubleshooting an issue were not going away. How do I know? Here’s the script for determining if you have expired but not pruned recovery points (source): [...]

Comment on HyperV Integration Services: Fatal error during installation by aditi

aditi — Sat, 23 Jul 2011 05:13:08 +0000

there are no such files on my computer!
But still whenever i try installing my blackberry the following error appears:
An error occurred while copying file wdfldr.sys
Cannot file to destination directory.

My device can be used as a pendrive where you can copy and paste files on it but it cannot be synced with the desktop manager.
could anybody please help me!