Browsing Posts published by Andrea Mauro

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RedHat has announced the global availability of Red Hat Storage Server 3, an open software-defined storage solution for scale out file storage designed for the biggest consumers of unstructured data in enterprises today including enterprise file sharing and collaboration, log analytics, such as Splunk, and big data, such as Hadoop.

Based on Red Hat Enterprise Linux 6 and the Open Source GlusterFS 3.6 file system, Red Hat Storage Server 3 is designed to scale to support petabytes of data without compromising on choice, cost and control. Highlights of the new capabilities of Red Hat Storage Server 3 include:

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Interesting European IT events:

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Storage Best Practices: Vendor vs. VMware

A best practice is a method or technique that has consistently shown results superior to those achieved with other means, and that is used as a benchmark. In addition, a "best" practice can evolve to become better as improvements are discovered. But, as well described by Frank Denneman in his post, best practices are never absolute, they depends on your specific case. One good example is in the storage part of a virtualization solution: VMware guides (but also other virtualization vendor) define some good practices, but storage vendors may define other more specific. In this case, usually, you must follow the practices ...

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VM replication in VMware SRM 5.0

One of the interesting feature of VMware SRM 5.0.x is the vSphere Replication (VR) technology that is a VM a replication engine (part of SRM 5.0 and that also requires ESXi 5.0 and later) to implement protecting and replicating virtual machines between sites without the need of storage array–based replication (that usually it's costly and too much vendor dependent). It use different elements: VRA (vSphere Replication agent): included in ESXi starting from v5.0 VRMS (vSphere Replication Management Server): one virtual appliance (VA) for each site to handle the communication VRS (vSphere Replication Server): one virtual appliance (VA) on the DR side that is just ...

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VMFS5 - Upgrading vs. Fresh Install

With a vSphere 5 upgrade there is an important vDesign decision: if you already have some VMFS3 datastores could be better upgrade them to the new version of build new datastores directly with VMFS5? The upgrade procedure is quite fast and friendly and could be applied to a live datastore, so seems that there isn't a big different between an upgrade or a clean format. But usually the recommendation is to re-format each LUN to VMFS-5 rather than upgrade it. This will fix a number of issues, including: Mismatched block size: VMFS-5 introduces the 1 MB unified block size. We would be ...

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How to manually remove a stale VMware View pool

In some cases you may have a pending VMware Horizon View pool deletion task that does not finish for several reasons: usually when you have modify or delete some VM's pool directly from the VMware vCenter Server instead from the View Manager. In those cases you will not be able to remove those pool anymore and probably you will not able to build VM with the same pattern. You can fix this issue manually using those VMware KB: Manually deleting linked clones or stale virtual desktop entries from VMware View Manager 4.5 and later (2015112) or Manually deleting linked clones or stale ...

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Virtualization is not cloud computing

In the previous posts I've described the different types of virtualization and the different types of cloud computing. Due to the fact that usually IaaS provide VMs you can think that there is a direct correlation between virtualization (in this case system virtualization) and cloud. But this correlation could exists or also not! Virtualization is stricly related to the technologies and the infrastructure aspect. Cloud more on high-level aspects, like type of services, services level, ... Cloud imply virtualization? Virtualization it's just an infrastructure layer that could be used in a cloud infrastructure, but is not strictly mandatory! Of course, for IaaS probably a virtualization ...

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Building a vSphere 5 lab

For people that need to make practice for the VCAP-DCA exam (and the beta of VCAP5-DCA will start soon) a good lab environment is mandatory. But it could also be useful for other reasons, like demo environment. There are several options to build one, but most used solutions are using nested hosts on one physical system with: VMware Workstation/Fusion over a host OS: common for a notebook. ESXi 5 on a server or a whitebox: common if you plan to have a always-on or fixed solution. Actually both solution could be good, but Workstation could not scale too much, expecially if you work with ...

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Using PCoIP on WAN connections

In a View environment the PCoIP is usually the right choice and on a LAN works really well (see also the previous post about PCoIP and RDP differences). But on a wide-area networks (WANs)you have to consider some aspects to have a reasonable reactivity or to maximize the number of remote clients: you must consider bandwidth constraints and latency issues. The PCoIP display protocol provided by VMware adapts to varying latency and bandwidth conditions, but some optimization may be needed. The best reference document is the VMware View 5 PCoIP Network Optimization Guide with a lot of useful information.  But there ...

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Copy/Paste in a VMware View session

Probably you have already notice that copy & paste operation in a VMware View session are limited for security reasons and is discussed in the View admin guide: Configure clipboard redirection Determines the direction in which clipboard redirection is allowed. You can select one of these values: Enabled client to server only  (That is, allow  copy and paste only from the client system to the View desktop.) Disabled in both directions Enabled in both directions Enabled server to client only (That is, allow  copy and paste only from the View desktop to the client system.) Clipboard  redirection is implemented as a virtual channel. If virtual channels  are disabled, ...

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vCenter Operations Management - Installation without a DRS cluster

The vCenter Operations Manager 5.0 is a powerful tool for monitor a vSphere environment. But, as writtent in the previous post, the software is distribuited using a vApp (with two VMs) that means the you need DRS if you deploy it on a VMware Cluster. Note that if you deploy it on a standalone ESXi host it does not require DRS. So how deploy this vApp with a vSphere edition lower than the Enterprise edition? Officially there isnt's a strict requirement of a specific edition, so you can play to use it also on Essential, Essential+ or Standard edition of vSphere. In this case, the ...

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Whitepaper on backup policies

Some months ago I've realize a course for the Backup Academy titled: Basic principles of backup policies. Now it's available also a whitepaper title "Backup policies defined for VMware VMs" (but it's enough general to be applied for generic policies, both for physical and virtual environment). This is the list of all the media type available on my course: Online video with transcript Offline video Podcast PowerPoint Slide Whitepaper

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ESXi - Use the embedded VNC Server

Some weeks ago I learn a new curios thing in a thread in the VMware Community: also the latest version of ESXi still have a VNC Server for the VM console that can be used with a common VNC connection as described in the old KB1246 (Using a VNC Client to Connect to Virtual Machines) related to the VMware GSX Server product! Note: as written in the KB VMware does not support running virtual machines with a VNC client. The right client to access the VM console is still the vSphere Client (or the Web Client), and of course, protocols implemented ...

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ESXi - RDM disks with SAS Storage (local or shared)

The RDM disks are a feature of VMware vSphere (but was present also in Virtual Infrastructure) to make a "mapping" between a LUN (or logical disk) to a VM (is similar to a disk pass-through). This feature can be used in different cases, for example: to support disk larger than 2 TB (only in vSphere 5 with physical RDM) and to implement guest clustering with shared storage (still only with physical RDM). But there is an issue (or a feature :) ) that does not allow to add a RDM disk from the GUI for local disk, and this also with ...

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Manage an isolated Windows Server

There could some cases where you may have some Windows (Server) completely isolated from the Internet, for example in some appliances or storage solution. One interesting aspect that learn on Windows products during a DataCore training was that in this case you can have some delay in the user interface, both on the DataCore GUI, but also on the Windows one. This is related in driver management (and in signign verification) and is well described in a FAQ on DataCore site (DataCore Server GUI takes longer than expected to open). The solution is quite simple and consist in a simple change on the ...

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VMware View 5.1 – Disable the certificate warning

One year ago, I've described how to disable the certificate warning in the Windows View Client 5.0, by using GPO or a direct change in the local registry (on the client). Now, with the new version 5.1 of the View Client there is a new way client side: As you can notice, there is a new option "Configure SSL..." that can open this window: In this window you can choose the right behavior. Note that on the smartphone and e tablet version of the client, on each connection you can choose the behaviour (in case on not valid certificate). But remember that the right approach ...

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How to verify a VMware Certifications

Some days ago there was a case of one guy that was using VCDX certification (and several other certifications) without having it (or at least without demonstrate it). One of the biggest problem in certification credibility is avoid fraud. Of course some could gain the certification with cheats and other form of frauds, but for some kind of certification (like the VCDX one) this is not possible: who gain it usually deserve it. Actually there is a transcript tool for VMware certifications (and also for some accreditation) but it's not public. You have your transcript in your own account. Also for each ...

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Bye bye vSphere Client

In the previous new products release we have notice several changes in some core parts, and several components are gone (see What’s in and what’s out). Now with the new vSphere 5.1 a new historical component (from the VI 3.0) will die soon: the vSphere Client! The limits of this client are: it works only on Windows client (so it isn't a multi-platform solution) and has some dependency with the .NET Frameworks it's a thick client-server approach (compared with thin solutions, like browser oriented) it's "complicated" to deploy and upgrade (strange that VMware has not opted to a simple ThinApp packaged to deliver this ...

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VMware Logo

As other companies and vendors, VMware is using the suite concept to identify a products collection with similar scope (or complementar functions) and usually with a common lifecycle plan (at least after that the suite is declared).

It does not mean that all the products in a single suite will have a common look & feel or same versions, but new release are (usually) handled in a common way.

The vSphere suite was probably the first one defined by VMware (before ESX and vCenter Server were two different products and with different versions) and after that more suite were announced.

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Stellar announce a new product: Stellar Phoenix BKF Recovery 3.0. Stellar Phoenix BKF Recovery is a powerful tool that provides restoration of backup files after any logical corruption.

The software supports recovery of BKF files created with Windows NT Backup utility in in Windows 2003/2000/XP, Backup Exec from Symantec, and Zip files created using Windows 8/7/Vista. The advanced algorithm of the tool scans the corrupt files and restores the data intact.

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After the Heartbleed bug storm, now there are new possible (serious) problems with a new bug in the Linux and OpenSource world: the Shellshock bug affect lot of Linux systems, in particular the bash (the standard shell on most Linux and also some Unix system).

On Sept 24, 2014, a critical vulnerability in Bash (CVE-2014-6271, CVE-2014-7169) was published that may allow for remote code execution. Use this exploit is quite simple (on affected system), that make this bug really critical.

Major distribution have already realized a new bash version with the required path, but old distros (no more updated) can remain exposed (and could not so easy remove bash because can be used in several scripts).

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LoginVSI-Logo

Login VSI has added a new component to it’s benchmark tool for VDI and remote desktop/applications environment: Graphics Framework.

The Login VSI Graphics Framework, available for Login VSI Pro users, makes it easy to test any professional graphics application (such as AutoCAD, Siemens NX and Photoshop) in virtualized desktop environments.

Floris van der Ploeg (R&D guru) wrote an interersting blog post about this new Login VSI component.

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A3Cube-Logo

A3CUBE Inc., a company founded in 2012 as a result of more than 5 years of research and development operations, has introduced its Fortissimo Foundation building block software solution. Coupled with A3CUBE’s previously announced RONNIE Express platform, Fortissimo Foundation provides dramatic improvements in application performance and datacenter efficiency, particularly in unstructured, Big Data environments.

This solution is not only a new approach to a scale out architecture (confirming this kind of storage trend) but also an innovative way to build converged (and also hyperconverged) systems.

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CloudOps-SIG

CloudOpsSigAfter (several months) the last CloudOps events, the CloudOps VMUG SIG will organize a new event on Ansible about IT Automation.

  • Next CloudOps SIG Event: Ansible
  • Tuesday, September 16, 2014 11:00 am, Central Daylight Time (Chicago, GMT-05:00)
  • Tuesday, September 16, 2014 6:00 pm, Europe Summer Time (Berlin, GMT+02:00)
  • Registration link

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VMworld-Logo

The VMworld US edition is finished some weeks ago and there are just four weeks until the European edition of VMworld 2014! Although those two edition are too close there are still lot of difference in the contents and in the events themselves. The European edition remain one of biggest event in EMEA and a must, especially if you have lost (like me) the US edition.

I’ve explain why attend at this event (reason remain just the same from previous year) now I also collect some (I hope useful) information (like done in the previous year).

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Dell Logo

Dell’s networking portfolio was historically made by a Dell PowerConnect series for the switches in the SMB and mid-size target and the PowerConnect-W for the wireless offer. Some years ago there was also a PowerConnect-J series with the (temporally) partnership with Juniper (before the Force10 acquisition).

The Dell Force10 was positioned in the top of the networking offer with several products both for the traditional networking approach (core, aggregation and access) and also for the emerging model (leaf-spine).

But recently the entire networking family has been re-organized and renamed with new names, a clear positioning for each product, a “common” firmware and common management tools. Force10 and PowerConnect are all been merged in a common Dell Networking products portfolio:

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VMware’s technical certifications are almost simple and clear: actually there are four paths (Data Center Virtualization, Cloud, End User Computing, Network Virtualization) and for each four different levels (Associate, Professional, Advanced Professional or Implementation Expert, Design Expert) like in a piramid (with the first level optional, as discussed in a previous post).

There is also a specific path for Cloud Application Platform (related to developer for the Spring framework), but actually could be considered as something apart and also is not included in the official VMware Certification Roadmap.

On the partner side some of those individual certifications could be useful for gaining specific VMware partner competencies, but there isn’t a complete 1:1 mapping between certifications and competencies.

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