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Synology DS1511+ NAS Review

Synology DS1511+ Front

This is the sixth post in the SMB/LAB NAS review. The entire review compares the following products on features and performance:

- Cisco NSS324
- Iomega IX4-200d
- Netgear ReadyNAS Ultra 6
- QNAP TS-859U-RP+
- Synology DS1511+

Today I describe my experiences with the Synology DS1511+. This unit is one of the heaviest prosumer models of Synology and is fitted with 5 drive bays. The unit looks nice, is quiet (of course depending on the disks you use) and is just like the QNAP, packed with features.

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Xenserver: fast-clone a VM 120 times in 90 seconds

I’ve been working on Project VRC lately and in this role I’ve had the opportunity to work with different hypervisors. In my quest to conquer Xenserver I ran into a couple of challenges and I would like to share these with my readers (as I learned it the hard way, why not make it easier for you).
One of the things I needed to figure out was how to clone a VM multiple times. With Xenserver, there are a couple of options to clone a VM. From XenCenter you can right-click a VM and choose: Copy VM…

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VRC: Hyper-V 2008R2, vSphere 4, XenServer 5.5 on Intel ‘Nehalem’ Xeon 5500

The “Project Virtual Reality Check” team just released a new whitepaper: “Hyper-V 2008R2, vSphere 4, XenServer 5.5 on Intel ‘Nehalem’ Xeon 5500“. 

 “If you are looking for an independent advise and a ‘Reality Check’ in relation to Virtualizing Terminal Server and Desktop workloads, if you are curious about the impact of different hypervisors and the performance differences with various hardware and if you are searching for best practices for your virtual Desktops … Project VRC whitepapers are a must read!”
The whitepaper contains: 
  • Highlights, performance differences and best practice conclusions for Terminal Services workloads on:
    • Bare metal Terminal Services; 2003/2008/x86/x64
    • Hypervisors: Citrix  XenServer 5.5, Microsoft Windows Server 2008R2 ‘Hyper-V’ and VMware vSphere 4.0
    • Performance impact using different HP Proliant state-of-the-art hardware using Intel Xeon ‘Nehalem’ x5500  … Continue Reading
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Citrix XenDesktop 4 released and available for download

The moment is here, XenDesktop 4 is available!

Much awaited and true to their promise Citrix has just officially made XenDesktop 4 available for download on the download page of MyCitrix.com : http://www.citrix.com/English/ss/downloads/results.asp?productID=163057 (you need to be registered and login).

xendesktop_mycitrix2

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Change Microcode in Xenserver/Everrun

Up until today I even didn’t know what Microcode or what it’s purpose was. After today I’ve learned a lot about it and would like to share it with you.

 ”Microcode is a layer of lowest-level instructions involved in the implementation of machine code instructions in many computers and other processors” is the description from Wikipedia. I read more and normally the microcode is updated by using a BIOS upgrade or ROM Flash from your vendor (In my case Intel). … Continue Reading