Migrating EqualLogic replicas

In the previous post I've describe how migrate volumes across two (or more) EqualLogic in the same group, using different storage pools. In the same way is also possible migrate the data on the disaster recovery site: in this case data are the remote volume replicas that are stored in a single container called delegated space. Each destination of a (asynchronous) replication must have a proper delegated space (and only one!), and a delegated space can be stored on a single storage pool. In this way, by choosing a new storage pool for a delegated space you can start the moving of all ...

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Recovering a lost partition table with a VMFS datastore

There are different reason where you can you loose or corrupt your partition table of your VMFS volumes: resignature from another system (for example the backup server, if connected in SAN mode), a human mistake (datastore / delete), or maybe some storage issues. In this case usually the VMFS partition is still there and also the related data: you have "only" to rebuild the right partition table. But this could really simple if you follow the recommended practice to have only one VMFS partition on each disk. In this case you have only to build the configuration for a single partition ...

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PCoIP vs. Blast

I've already write a post with the comparison between PCoIP and RDP (PCoIP vs. RDP) and some considerations on how use each protocol in a VMware View infrastructure. Other protocols, like HP RGS (Remote Graphics Software) has been removed (from View) years ago, and protocols from other solutions (like, for example, SPICE) are not included. But now there is also the HTML5 option (Blast protocol) included with the Horizon Suite or with the Feature Pack of Horizon View (see this post on how enable it). It's just a 1.0 version so this kind of protocol could not replace yet the PCoIP one: Blast protocol ...

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Supported means that works well?

In the previous post I've consider the cases and scenarios of a "non supported" configurations. But what's happen with "supported" configurations? Are they always working and always in the best way? A supported configuration means that it can work well, but in specific situations, cases, scenarios. Usually a good rule could be make a good analysis and a good virtual design before choose the single pieces. A supported configuration does not mean that also meets requirements like availability, scalability and performance. For example there are a lot of entry storage that are VMware certified, but they does not meet any of ...

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Fix vCenter Plugins list: Remove Enterprise Converter

One possible issue after a vSphere 5 upgrade using an in-place upgrade of vCenter Server could appear when you forget to remove the Converter Enterprise plugin (and/or the Guided Consolidation plugin). As you know some products has been removed from vSphere 5, and their plugins may remain in a "orphan" state. The result of this issue is that you will have a "broken" plugins list (with some plugins that are no more available) and also a wrong vCenter health status, due to some services that are no more existing: The well-documented procedure to remove old or wrong plugins is described in the KB1025360 ...

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Issue in logging into vCenter Server using Windows AD credentials

One possible issue during an upgrade to VMware vSphere 5.1 or 5.5 (but also in a new installation) is related with the introduction of the the SSO (introduced in vSphere 5.1) component in vCenter Server that handle the authentication across the different vCenter Server components, but also against the users. In some cases you may have the following issues during the user autentication: You can log into vCenter Server 5.1 or 5.5 with the vSphere Client or vSphere Web Client only with local users Logging into vCenter Server 5.1 or 5.5 using the vSphere Client with an Active Directory domain account and/or selecting ...

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ESXi - How does the dual bank work?

As written in the previous posts, in the ESXi installation there are two copy of the system image located in two different partitions (see Partitions layout of system disk and More on partitions posts). The actual system image is located on the first 250 MB partition, formatted with plain old FAT16 filesystem, but using a special pseudo-filesystem on it (see VisorFS: A Special-purpose File System for Efficient Handling of System Images). The image itself, s.v00, is a 124 MB compressed file, which is decompressed on boot and contains the hypervisor operating system. Note that the compressed image is larger in 5.0 ...

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Storage for VDI: local or shared?

In my interview with Sakthi Chandra (NexentaVSA for View Director), during the last Open Storage Summit EMEA, we have talk about the Nexenta approach of the storage for a VDI environment. Their product has been developed from a collaboration with VMware and some aspects sound familiar: for example the overview of the VSA deployment and design seems similar to the VMware VSA, except the scalability limit (that is limited to max 3 host for the VMware solution). But I don't want talk about the product, yet (I prefer dedicate it a post, when I will be able to make some ...

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Microsoft Virtual Labs

Some months ago I've write about the VMware Hands on Labs and how labs are important for testing and learning about a product (also for other vendor). Events like VMworld, Microsoft TechEd, Dell Storage Forum, HP Discover, ... are a good moment to have access at those kind of labs. But of course you can also build your own labs (as described in this post) but this require more effort. A good work-around is use on-line and on-demand lab. For VMware the on-line version is just in beta, but for Microsoft this kind of tools are a reality from several years ...

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EqualLogic Replica aborted because the group was too busy processing a max-keep value change

Recently I've got a strange issue with an Dell EqualLogic environment and I've not found any useful info about the related error message: Subsystem: MgmtExec Event ID: 8.3.48 Schedule Replica oraria aborted because the group was too busy processing a max-keep value change to create the operation scheduled for time ... The detail does not help and also the EqualLogic reference guide does not report this error message. This issue happen after a member (to be honest was a group) upgrade and probably the replication sets was damaged during this event. The resolution is really simple (it does not fix itself, also after some days): delete ...

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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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Upgrading to ESXi 5 vs. doing a Fresh Install

In a vSphere upgrade process, there are two different approach for the host upgrade: a fresh re-install or a in-line upgrade. In the VMware site there is an interesting post about this choice. The differences between an upgraded host and a freshly installed host are: Boot disk partition format:  When upgrading, the boot disk retains the older MBR (Master Boot Record) partition format where on a new install the boot disk is formatted as GPT (GUID Partition Table).  The key here being that the new GPT format enables you to use LUNs larger than 2TB and up to 64TB.  The larger LUN ...

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Virtualization ecosystem is becoming multi-hypervisor

One trend in the last year(s) is that the virtualization ecosystem is growing outside the boundary where was born: historical partner vendor of VMware now are extending their solution to other hypervisors, and also also new products are designed to managed a more complex virtual environment. This was also called "Hypervisor Agnosticism" in a VKernel post. We do not talk about interoperability across different hypervisors, but simple use same tools, especially for management, monitoring and data protection, for more type of products. Does it make sense? For a single customer maybe not... have multiple environment could be an extra cost (also if ...

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Migrating volumes with EqualLogic features

During an array migration usually you can use application level trick to move your data between the old and the new array. For example with VMware vSphere you can use the Storage vMotion features (now added also in lower edition of vSphere 5.1) or with Microsoft Hyper-V 3 you can use the new Storage Live Migration feature. But in some case you may have also an option at storage level. For example to migrate across two Dell EqualLogic array (also different models) you can use the embedded function. The trick its simple: just add the new EqualLogic as an additional member in ...

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Manage a network load balancer with System Center VMM 2012

In the fabric section of System Center VMM 2012 is also possible add external hardware network load balancers and manage, in a similar way as a storage array can be added and managed. But in this case there isn't a standard interface to remote manage the devices and each vendor must make available a supported "provider" that is just the management software part for the integration with VMM. Actually the supported devices are: BIG-IP from F5 Networks, Inc. Brocade ServerIron ADX from Brocade Communications Systems, Inc. Citrix NetScaler from Citrix Systems, Inc. Note that Microsoft Network Load Balancing (NLB) is automatically included as a load ...

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Top IT Certifications

One common question is "which certification should I get?" or "which is the best one?"... As usual it depends and is not a simple "objective" choice because it also depends on your needs and on what is required (in the IT field), that could also depends year by year. For the first question IMHO I really suggest to check your skills, think on what you would like to do and related to jobs offers. Which is the right certification could not be defined with a simple objective criteria. One criteria could simple choose a certification according on your kind of job. There ...

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vInfrastructure Blog

Just three years ago this blog has started its life (see the first official post: Blog goes live), initially with a different domain name, but fastly changed with the final one (shorted and probably simpler).

Compared to the first year (see the related post: One year of blog) and also the previous one (see the related post: Another year of blog), the blog has grow, expecially in the number of visitors (and recurring visitors) and in its popularity (for example see this ADV classification of some blogs).

It remain one of most popular virtualization related blogs (in the 2012, in the 2013, and also in the 2014) and still remain in a dual languages version: Italian and English.

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VMUG

Today VMUG will launch the VMUG Engage, a new program (in a gamification form, like the CloudCred initiative) that allows to earn points every time you participate in the VMUG community.

Whether you register for a User Conference, attend the Virtual Event, post in a discussion forum or connect with another user, you’re earning points!

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CloudOps-SIG

The CloudOps VMUG SIG is working on the next events and on-line sessions. Do you have a nice idea, an interesting technology or example or would you like to hear about something special (of course CloudOps oriented)?

Just fill this Call For Paper module with your idea and suggestions in order to help the CloudOps SIG team in building a rich agenda for the next months.

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VMware Logo

VMware certifications path is a three level model: starting from VCP, VCAP to the top level VCDX certification. Plus an initial, but not relevant in the certification step (to increase your level) Associated level (VCA). And this for each technology area: datacenter, cloud and end user computing and soon the networking path.

Now there some new information about the network virtualization path, related to the VMware NSX product.

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Infinio-Logo

Infinio is launching a new content where you could be the big winner of a free full pass to VMworld 2014.

Just register to the Infinio content at this link! Deadline to enter is Monday, July 21st @ midnight

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Like in the past year, I’ve decided to stop posting (or at least reduce the number of posts) for the summer’s week, to have more time with my family, finish some pending works and also have time to prepare new posts and test new products.

There will be some post for the announce at the VMworld 2014, so stay tuned!

VMware Logo

In the past days, VMware has officially announced the launch of two beta programs:

Although those beta programs not public, but private, for the first time, and unlike previous beta cycles for vSphere, the vSphere beta and VVols beta are open for everyone to sign up. This approach allows participants to help define the direction of the world’s most widely adopted, trusted, and robust virtualization platform.

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Microsoft Logo

According to Microsoft, Microsoft Most Valuable Professional (MVP) award is given to “exceptional, independent community leaders who share their passion, technical expertise, and real-world knowledge of Microsoft products with others”.

The awarded are people who “actively share their … technical expertise with the different technology communities related directly or indirectly to Microsoft”. An MVP is awarded for contributions over the previous year.

Is more than an award (or accreditation) instead of certification and is quite similar (in the concept) like other “community” award, like the VMware vExpert.

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Calendar

Interesting European IT events:

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Packt-Logo

This month Packt Publishing celebrates 10 years of delivering effective learning and information services to IT professionals. To celebrate this huge milestone, they are offering ALL eBooks and Videos at just $10 each for 10 days – this promotion covers every title and you can stock up on as many copies as you like until July 5th.

There are several interesting books related to virtualization (VMware and not only) and other IT technologies.

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Veeam-Logo-2014

As happened in the past year (with the Veeam Backup & Replication 7 announces), Veeam is periodically announce new features and concepts about the new 8.0 suite, that will be called Veeam Availability Suite.

One of the recent announce is about the end-to-end encryption included in Veeam Backup & Replication v8. Encryption was not so new in Veeam products, considering that was introducted in the Veeam Backup & Replication Cloud Edition, but was only on data stored on the cloud provider.

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Dell Logo

Nutanix does not need presentation: it’s one the first example of hyper-converged storage architecture and probably one of the most know (for an overview see this post).

Dell also does not need any presentation and their storage portfolio has some interesting products, included PowerVault MD (based on NetApp technologies), other PowerVault products, EqualLogic and Compellent solutions.

This week Dell announced is new partnership with Nutanix to provide a new series of their converged appliance built on Dell servers and powered by the Nutanix software extending Dell’s SDS portfolio. This is another step for Dell into the hyper-converged solutions for the web-scale market (there were already other OEM partnership).

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