Sunday, 19 August 2012

Tech Round Up 19th August 2012

Interesting things worth making a note of when I’ve had time to read my emails and feeds, since the last Tech Roundup!
With stuff from: Citrix, HP, Microsoft, NetApp, Riverbed, USB Network Gate, Veeam, VMware, and Vyatta!

### Citrix ###

HKEY_CURRENT_USER\Software\Citrix\PNAgent : “SuppressURLPromptAtLogin”=DWORD:00000001

Excellent PDF document for understanding how XenServer IntelliCache helps to optimize performance of your VMs, with best practices, and a how to guide!

Fig. Without/With IntelliCache 

### HP ###

And about time too! Think/compare: NetApp SnapManager, Compellent Replay Manager, EqualLogic Auto-Snap Manager… Requires Windows server mounting an iSCSI attached volume(s) on the LeftHand SAN.

HP “… has unveiled virtualization software that will allow cloud services providers (CSPs) to more easily move VMs from one data center to another.”
“HP’s secret sauce involves:
·         HP Ethernet Virtual Interconnect (EVI)
·         HP Multitenant Device Context (MDC)
·         HP StoreVirtual virtual storage appliance (VSA)”
Note: The HP LeftHand VSA has been renamed the HP StoreVirtual VSA.

Also see:

Fig. HP Ethernet Virtual Interconnect (EVI) 

Fig. HP Multitenant Device Context (MDC)

### Microsoft ###

LOL – V2V conversion of VMware vSphere virtual machines to Microsoft Hyper-V virtual machines via VMware’s own vSphere client!

1. Visit this TechNet blog.
2. Try using Oracle VM VirtualBox in order to open unbootable vhd files.
3. Partition Guru from

It is to do with the update sequence number (USN) getting out of sync with other domain controllers, thus causing an inconsistent state. This particular ‘issue’ (although it isn’t really an issue, it’s by design) has been resolved in Server 2012 which now means you can snapshot or clone your DCs (but this only works with a Server 2012 Hyper-V Host and activated Domain Controller Option for the DC.)

### NetApp ###

### Riverbed ###

### USB Network Gate ###

“… easily connects one or more remote USB devices to your computer over Ethernet …”

### Veeam ###

Post from DiscoPosse, on how “with Linked Mode vCenter configuration, we no longer have the ability to run an across the wire clone or Storage vMotion”, you can use VeeamZIP to migrate your VMs.

### VMware ###

“This release is functionally identical to vCenter Server 5.0 Update 1a but also includes the fix for the issue encountered when upgrading with an Oracle database.”

Take homes from the KB:
vpxd.log log file
vpxd.cfg configuration file

Excellent how to from MWPreston’s blog!

“… clusters can enter an inconsistent state when placed into cluster maintenance mode using the vSphere Storage Appliance Manager.”

“Log Insight represents the latest potential tool for managing and troubleshooting physical, virtual and cloud environments.” Going up against the likes of Kaseya, Nimsoft, and Boundary, and sounds a bit like eGInnovations.

## Vyatta ##

Excellent how to from Mohammed of The Stifford Academy!


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