ReddingITPro

Technical Blog of Jason Olson

Gmail Deliverability – Mailgun

For several of my projects I have implemented Mailgun for email delivery. That system works wonderfully to help handle the dirty work of email deliverability. However recently I encountered a

Read More

Top 5 Ways to Speedup Desktop Computers

In the old days, computers often performed very slowly because of a lack of preventative maintenance. Those days are behind us because a lot of these things are now handled

Read More

XenServer – Pool Master Recovery (The Missing Part 1 to XenServer Hosts in Halted Mode)

In July of 2012 I wrote a “part 2” regarding XenServer Hosts in halted mode — however I seem to have misplaced part 1 – which I’ve rewritten after having

Read More

Hung VM, unable to force reboot/shutdown

I have been working with a few vendor provided VM’s which run Linux. For some reason this specific set of Linux VMs do not properly respond when issuing reboot or

Read More

Disabled Mailbox is not showing in Disconnected Mailbox Area

In Exchange, when you delete an active directory user account, it does not delete their mailbox automatically. Instead it considers the mailbox to be in a “disconnected” state. The mailbox

Read More

How to Remove a XenServer Slave when it No Longer Exists in the Pool

Citrix article CTX126382 describes how to remove a XenServer Slave from a pool, however it does not completely clean up after the process is complete. While the host will be removed,

Read More

Xenserver hosts in halted mode (part 2)

I recently encountered a problem where one server in a pool had shutdown expected in a way which cased the vms running on that host to fail. We restarted the

Read More

XenServer: Changing management adapter in pool

After going through several rounds of problems to move a management adapter for a xenserver pool, I have found the following working process. However, it is because of this processes

Read More

XenServer: Hung VM

I’ve experieneced several instances where a VM appears to hang and is non-repsonsive, not only at the console level, but also to the XenServer Hypervisor and XenCenter. Attempts to force

Read More

Unrecoverable error during 5.5 restore (from failed 5.6)

This weekend I decided to perform the upgrade of our 2 XenServer 5.5 servers in a farm configuration to 5.6 FP1. However I found conflicting information on how to perform

Read More