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Monitor VM snapshots in VMware vSphere

29 August 2015
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Reading Time: 3 minutes VMware snapshots are widely used for different purpose, but the main reason why they exist in vSphere is to help backup programs: using VADP a backup can start a VM snapshot in order to have a frozen file, copy it (or copy only the changed block with CBT and virtual hardware 7 or greater) and then release the snapshot. Other usage are to have a just in point rollback during patches or big changes, but a recommended practice is to release the snapshot as soon as possible. Large snapshots or broken or invalid snapshots are […]

VMware, vSphere none

SQL issues in vCenter 6.0 upgrade

14 August 2015
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Reading Time: 4 minutes If you are planning an in-place upgrade of a vCenter Server (the Windows installable version) you have to read carefully the vSphere Upgrade Center resources to avoid possible issues. Of course you can choose to install a new vCenter Server instance a move all to the new one. Maybe could be the right moment to switch to the vCenter Server Appliance (there is also a Flings to move your vCenter Windows data to a VCSA instance). But sometimes it’s not possible and should be preferable an in-place upgrade.

VMware, vSphere

Snapshot “issue” in VMware vSphere 6.0

10 August 2015
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Reading Time: 2 minutes If you have installed (or upgraded to) VMware vSphere 6.0 and you still use the old legacy vSphere client you may have some false positives about VM snapshots. All VMs seems to have some snapshots, also if they don’t (and using consolidate does not fix it, because there aren’t snapshots to be fixed). But this apper only with the Windows vSphere Client:

vSphere none

Book review: VMware vSphere Design Essentials

7 August 2015
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Reading Time: 3 minutes VMware vSphere design is something important for VMware beginner, VMware engineer, VMware SME, or VMware architect. It’s not only related to know well the technologies, but understand how use it in the right way (in the right cases). VMware vSphere Design Essentials is a short book (only 176 pages), but with a good approach for design an IT environment, particularly a VMware vSphere based.

General, vDesign, vSphere

Book review: vCenter Troubleshooting

23 June 2015
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Reading Time: 4 minutes VMware vCenter Server is a critical component in a vSphere environment, because is needed to provide some cluster functionality. A good design and deployment (that are different from version 5.x and 6.0) are important to avoid possible issues. And, of couse, a good availability of this kind of service. Troubleshoot this component is not always simple and there are a lot of VMware KB articles, but not a good single resource from where start in this kind of tasks. The purpose of this book is really clear from the title itself (vCenter troubleshooting) and the […]

General, vSphere ,

Deprecated VMFS volume warning in ESXi 6.0

11 June 2015
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Reading Time: 2 minutes Recently I’ve got a strange issue on ESXi 6.0: after an host reboot the ESXi hosts display a false positive warning: Deprecated VMFS volume(s) found on the host. Please consider upgrading volume(s) to the latest version Starting with vSphere 6.0 the VMFS3 version is now deprecated, but in my case all block based datastores were already at VMFS version 5!

VMware, vSphere none

VMware ESXi – Bootbank cannot be found at path ‘/bootbank’

27 May 2015
4 comments

Reading Time: 3 minutes After an upgrade to VMware vSphere 5.5 on a Dell PowerEdge R710, I’ve got strange occasion issues, where the hosts got completly disconnected from vCenter (with the ESXi/ESX host’s status as Not Responding or Disconnected in vCenter Server) and there was no way to reconnect, also after restarting the management services. Locking in the ESXi console those kind of errors where notable: Bootbank cannot be found at path ‘/bootbank’. The only temporally solution was power-off the VMs and restart the host. But the issue can randomly came back.

VMware, vSphere none
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