Converting Server 2012 / 2012 R2 Core to GUI without Powershell
Today I received an email from a customers supplier along the lines of..
We installed an IIS feature, restarted the server and now all we get is a command prompt when connecting via RDP.
Being the first time I'd heard of this happening, I interestingly connected to see what they had managed to break this time (nuff said there)!
Upon logging in via RDP I ended up with a black screen and a command prompt, which somewhat baffled me with this server being a full GUI server install for the last 2 months up until this point!
VMware Horizon Workspace Error Incorrect issuer in SAML AuthnRequest
Recently I was in the process of deploying and configuring VMware Horizon Workspace 2.1, which is now a single virtual appliance and came across and strange and unfathomable error.
The error itself was "Error Incorrect issuer in SAML AuthnRequest" and was displayed right after I had ran through the initial configuration wizard such as setting the passwords and database.
After finding very little information about this error on the internet and nothing useful in the appliance log files as to why this was happening I started to feel a little lost.
Disk Consolidation Needed - Unable to access file since it is locked
After deleting snapshots on a VM either by deleting an individual snapshot or selecting "Delete All" snapshots, you may see the following warning for the VM, stating that disk consolidation is needed.
"Virtual machine disks consolidation is needed"
This can occur when a snapshot has been deleted and removed from snapshot manager, but the consolidation of the VMDKs on disk have failed.
Office (Word/Excel/Outlook) 2010/2013 Freezes and Hangs in VDI
In a VDI environment users may experience delays, hangs, freezes and pauses when using the Microsoft Office suite of applications such as Word, Excel, Outlook and PowerPoint.
I've also heard this described as "lumpy" performance!
This can be seen in Office versions 2007, 2010 and the latest 2013 (including Office 365 click to run) with all updates applied for both Office and Windows.
While this can be caused by a number of factors, such as insufficient vCPU/vRAM in the guest OS or resource contention at the host level, it could also be due to a setting within Office to disable hardware acceleration.
vSphere Flash Read Cache Commands
esxcli storage vflash device list
Name Size Is Local Is Used in vflash Eligibility
-------------------- ------ -------- ----------------- ---------------------------------
naa.500a07510d7fe78 457862 true true It has been configured for vflash
esxcli storage vflash module stats get
Num Active VMDKs: 14
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