ESXi Failed to open device naa.(GUID) No space left on device

So I had a late call from a friend saying that he can’t mount a datastore after expanding it from the storage, it was a weekend and next day was Monday and the wife is not happy ;-). So that storage is a VNXe iSCSI box and what I did at first was try to Continue Reading →

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Reset Red Hat Linux Enterprise root password (lost roor 0_0?)

I had a request from a customer on this, and the procedure is fairy simple and breaks down to this: Reboot the current system. When presented on the boot screen (hit any key to enter menu). Press the letter A (which reflects the term append) < this will get you to grub and there will Continue Reading →

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Synthetic FibreChannel Port Failed to finish reserving resources

So its a Saturday afternoon playing my 2 years old and a phone call came to end it ;-), so one of our customer had an issue with live migrating virtual machines with vFC disks attached to it. The first error I logged was: Live migration of ‘Virtual Machine XXX-XXX-XXX’ failed. Virtual machine migration operation Continue Reading →

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VMware VSA Export VMs from broken appliances

So the title sounds disastrous and its a fact that I had recently faced the issue at one of our customers where one of the VSA ESXi nodes failed due to hardware issues and the second VSA node didn’t export the replica datastore and instead it went into maintenance mode: Even when we got the Continue Reading →

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Citrix Receiver: Authentication token are not matching

This happened only when using Citrix Receiver, using the Receiver for Web was fine without any issues, so my current setup has: 2 Delivery Controllers @ 7.5 2 StoreFront Servers @ 2.5 1 Access Gateway @ 10.5 Receiver @ 4.1 I was reconfiguring the environment and I noticed that I didn’t fill out the SNIP Continue Reading →

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