Archiv für die Kategorie „VMware“

Orphaned Port Groups after migrating to distributed vSwitch

Montag, 28. November 2011

I came across this today and it took me quite a while to figure out what happened. I migrated a vSphere 5 environment from vNetwork Standard Switch to vNetwork Distributed Switch. Afterwards I deleted all old Standard Switches, but I had two Portgroups in Home->Inventory->Networking with Virtual Machines connected to them. Strange, as the vSwitches were gone.
After checking logs and playing around I found that these VMs had a snapshot. After deleting the snapshots the orphaned Port Groups disappeared, so I can now head off to HP Discover in Vienna.

vCenter Installation fails with “Error 28038. Setup cannot create vCenter Server Directory Services instance.”

Montag, 15. März 2010

I ran into this problem today while installing VMware vCenter Server 4.0 Update 1 on Windows Server 2008 SP2. In addition, the error said “Refer to C:\\Users\...\AppData\Local\Temp\...\jointool-0.log for more details."

(weiterlesen …)

Exclude unused NICs from hp management tools

Donnerstag, 18. Februar 2010

Your new Server has more NICs than you need? No problem. As long as they are not connected to a vSwitch VMware won’t bother with them. But if you install HP’s management agents and take a look at the System Management Homepage or integrate your ESX into System Insight Manager, you will see a warnings for each NIC that has no link.

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Using a FC Tape Library inside a Virtual Machine

Mittwoch, 17. Februar 2010

A costumer uses a HP MSL6000 Tape Library for his Backups. The library is direct attached to a server via SCSI, but now we are moving towards VMware. What to do? Use a NSR and get that thing into his SAN.

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Does your ESX Server really get its time via NTP?

Montag, 15. Februar 2010

If you want to check NTP on your ESX host, don’t rely on vSphere Client! Even if it looks okay it might not be working.

(weiterlesen …)

Strange problem with MSA1000 and VMware

Dienstag, 2. Februar 2010

I am just investigating a strange problem on a MSA1000 and ESX3.0. VMFS seems to become corrupt, even though I can write to it. (weiterlesen …)