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Archive for the ‘Sys Admin’ Category

Updated snapadm.pl file for ZFS Snapshots

June 8th, 2010 Jon Smith No comments

In my post OpenSolaris Backup Solution with Rsync and ZFS Snapshots I provided a link to a script from Sun – snapadm.pl. I found a bug where if you were using the recursive function then the old snapshots would never be destroyed as they were incorrectly named.

I have updated the snapadm.pl file contained in my post and have also provided a download link here.

Download:

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OpenSolaris Backup Solution with Rsync and ZFS Snapshots

June 2nd, 2010 Jon Smith No comments

I have recently been forced to learn how to admin an OpenSolaris machine with ZFS filesystems. After doing some reading on ZFS, I realised how using snapshots with an rsync server would make an excellent backup solution.

Using several scripts to control rsync and the snapshots has allowed me to setup a system that has data retention periods applied and only uses the space on disk required to keep the changed files. Cloning a ZFS snapshot from a week ago (or even six months ago) allows you to create a synthetic full backup from the point in time the backup was taken.

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Categories: OpenSolaris, Sys Admin Tags: , , ,

Exchange System Manager Tools on Windows 7 – The Easy Way

January 19th, 2010 Jon Smith 19 comments

Since my migration to Windows 7 there have still been a few things missing that would be nice to have. One of those is the Exchange System Manager tools. There are ways and methods out there to getting this to work but most will involve uninstalling outlook and reinstalling after you have installed ESM tools.

I have been waiting for the ESM tools for Exchange 2010 to hopefully work with Exchange 2003 but that hasn’t happened either. Although I did find a really quick and easy solution this morning after reading the following posts on TechNet (Exchange System Manager for exchange 2003)

You will need to download the Exchange System Manager for Windows Vista then use something like WinRAR to extract the contents.

You will also need to make sure you already have the RSAT tools installed (Remote Server Admin Tools)

Finally open up a Command Prompt as Administrator. Browse to the directory that contains the ESMVISTA.MSI file. Run the following:

ESMVISTA.MSI /q

Once this is done you should be able to open the “Active Directory and Computers” and edit an Exchange User with all the required email tabs.

BMC Updating… Please Do Not Shutdown or PowerCycle System!

October 8th, 2009 Jon Smith No comments

We have been having an issue with our HP DL160 G5 servers lately. After a BIOS update (and on one occasion it occurred without any other updates, just a power outage and a reboot) when the server boots the system fans spin at top speed (sounds like a jet engine) and the server screen shows

BMC Updating… Please Do No Shutdown or PowerCycle System!

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Categories: Sys Admin Tags: , , , , ,

pg_standby triggering unexpectedly

August 21st, 2009 Jon Smith No comments

I have been having a problem with my redundant PostgreSQL setup over the last couple of weeks. I run two Postgres servers with a WAL Logging Warm Standby system using pg_standby from 8.3. When the master server is under heavy load and generating a lot of WAL traffic the secondary server has been tripping and going active.

After checking all the logs and putting pg_standby in debug mode there was still no clue as to why this was happening.

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