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Fabrizio de Luca

Fabrizio de Luca

Italian freelance VMware Certified Instructor (VCI) and VMware Certified Mentor (VCM) based in Milano, teaching official VMware courses for the major VMware Authorized Training Centers (VATC) in EMEA. Website URL:

VSICM55 - Slide 06-70 - VMware Virtual SAN Requirements



Wrong:

Last sentence in the third paragraph of the slide notes states:

Testing has shown that a 1 Gb network can work, but this size of network is not supported.
Correct:

A 1GbE Virtual SAN network is actually fully supported, however VMware warmly recommends to leverage 10GbE NICs for best performances in a Virtual SAN network.

Source:

VMware vSphere 5.5 Documentation Center.


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VSICM55 - Slide 06-64 - Configuring Storage Load Balancing



Wrong:

The ordered list in the slide notes provides instructions about how to set the path selection policy:

  1. In the datastore Properties dialog box, click Manage Paths.
  2. Select a path selection policy from the Path Selection menu.
Correct:

The above steps actually have nothing to do with the vSphere Web Client, upon which the course is based, as they instead apply to the Windows-based vSphere Client only.

In order to access the path selection policies options in the vSphere Web Client:

  1. Navigate to the Settings link within the datastore Manage tab.
  2. Select Connectivity and Multipathing and then click the Edit Multipathing button.
  3. Select a policy from the Path selection policies drop-down list.


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VSICM55 - Slide 06-57 - Managing Overcommitted Datastores



Wrong:

Last phrase in the second paragraph of the slide notes states:

You can also use the storage reports to view disk space usage, for example, the Show all Datastores report in the Storage tab.
Correct:

The phrase actually has nothing to do with the vSphere Web Client, upon which the course is based, as it instead applies to Windows-based vSphere Client only.

In order to access the storage reports in the vSphere Web Client:

  1. Navigate to the Storage Reports link within the host Monitor tab.
  2. Select Datastores as the report type.


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VSICM55 - Slide 06-56 - Browsing Datastore Contents



Wrong:

Second phrase in the first paragraph of slide notes states:

The tab lists all datastores currently configured for the ESXi host.
Correct:

The phrase actually has nothing to do with the vSphere Web Client depicted in the slide graphics. It instead applies to Windows-based vSphere Client and describes the content of the host Configuration tab, Hardware section, Storage link.


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VSICM55 - Slide 06-54 - Creating a VMFS Datastore



Room for improvement:

Slide notes provide instructions about how to configure a new VMFS datastore:

  1. Select your host in the Host and Clusters view.
  2. Click the Manage tab and select the Storage link.
  3. Select Actions and New Datastore.
Correct:

Besides being formally correct, the list includes a few steps which are not compulsory: in order to be able to access the New Datastore task, it is not mandatory to navigate to the Host and Clusters view.
It is possible to leverage the New Datastore option within the Actions menu from wherever in the vSphere Web Client GUI, provided the target host has been selected in either the Host and Clusters view or the Inventory Lists tree.


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VSICM55 - Slide 06-53 - Using a VMFS Datastore with ESXi



Wrong:

Last phrase in the first paragraph of the slide note states:

The maximum size of a VMFS datastore is 62TB.
Correct:

The actual maximum size of a VMFS-5 datastore is 64TB.

Source:

Configuration Maximums for VMware vSphere 5.5.



Room for improvement:

The second paragraph in slide notes states the following:

You can use an NFS datastore to store your virtual machines. But not all functions are supported. For example, you cannot store an RDM on an NFS datastore. A VMFS datastore is required for an RDM to store the RDM mapping file (*-rdm.vmdk).
Correct:

Despite the above is formally correct, it is a non-sense to detail NFS datastores limitations within a lesson dedicated to VMFS datastores. I would personally move the statement back to the NFS datastores lesson number 3, within the same course module, starting with slide number 29.


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VSICM55 - Slide 06-34 - Viewing IP Storage Information



Wrong:

The slide notes ordered list instructing you how to view datastores information is either messed up between steps required in the vSphere Client and those in the vSphere Web Client or - in some cases - completely wrong:

  1. Select an ESXi host.
  2. Click the Storage link in the ESXi host’s Configuration tab.
        The Storage link lists all the datastores that the host can access.
  3. In the Datastores pane, right-click the datastore and select Browse Datastore.
        The Datastore Browser displays the contents of the datastore.
Correct:

As the "VMware vSphere: Install, Configure, Manage [V5.5]" course has transitioned to the vSphere Web Client GUI, the above list of tasks should be corrected as follows to describe the actual steps in the Web Client:

  1. Select an ESXi host.
  2. Click the Datastore link in your host Related Objects tab.
        The Datastore link lists all the datastores that the host can access.
  3. Click the Navigate to the datastore file browser link to be forwarded to the Files pane of the datastore Manage tab.
        The Datastore Browser displays the contents of the datastore.

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VSICM55 - Slide 06-33 - Configuring an NFS Datastore



Wrong:

The slide notes ordered list instructing you how to create an NFS datastore is either messed up between steps required in the vSphere Client and those in the vSphere Web Client or - in a case - completely wrong:

  1. Click the Storage link in your host’s Manage tab.
  2. Click the Add Storage link and select Network File System as the storage type.
  3. Enter the properties of your NFS datastore.
Correct:

As the "VMware vSphere: Install, Configure, Manage [V5.5]" course has transitioned to the vSphere Web Client GUI, the above list of tasks should be corrected as follows to describe the actual steps in the Web Client:

  1. Click the Datastore link in your host’s Related Objects tab.
  2. Click the Create a new datastore link and select Network File System as the storage type.
  3. Enter the properties of your NFS datastore.

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VSICM55 - Slide 06-24 - iSCSI Security: CHAP



Wrong:

Slide notes bulleted list describes CHAP configuration procedure for the vSphere Client whilst the slide graphic is showing the vSphere Web Client:

  1. In the iSCSI Initiator Properties dialog box, click the General tab.
  2. Click CHAP to display the CHAP Credentials dialog box.
  3. Select a CHAP option.
Correct:

Actually, in order to make the example more useful, it would be better to describe the procedure for the vSphere Web Client. Thus, the required tasks become the following:

  1. Click your ESXi host’s Manage tab.
  2. Click the Storage link.
  3. Click the Storage Adapters link and select the iSCSI Software Adapter you want to edit.
  4. In the Adapter Details pane click the Properties tab.
  5. Scroll down to the Authentication section and click the Edit button.
  6. Select a CHAP option.
Room for improvement:

Additionally, also the CHAP options listed in the slide notes refer to the vSphere Client, and not to the vSphere Web Client shown in the graphic. Thus, as per consistency, here are the four CHAP options shown in the vSphere Web Client GUI:

  • Use unidirectional CHAP if required by target.
  • Use unidirectional CHAP unless prohibited by target.
  • Use unidirectional CHAP.
  • Use bidirectional CHAP.

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