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Dell R630 vs Dell XC630-10 ISCSI Performance

October 14, 2016, 12:31 pm
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We have two VMWare hosts. Dell Poweredge R630 and Dell XC630 , the R630 has no other VMs on that host.

 

They both have the exact same specs and configuration (Processors are same, RAM is the same, network card type and drivers are the same), Version of ESXI is the same.

 

When a server is one the XC630 it has blazing fast speed to the ISCSI storage.

 

When moving a server to ANY R630 on our cluster there's a 40% loss in disk performance.

 

The only thing that changes is the host. Controllers stay the same to the storage. I can replicate this problem on any R630 we have.

 

SFP Ports have been replaced, Cables, About to try a pci xpress ISCSI card. However, I'm about to run out of ideas. Any thoughts?

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Re: Convert ESXi to raid

October 14, 2016, 12:41 pm
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Thanks for your reply.

-It's an Intel server board (no consumer board) but I don't believe the server has a dedicated raid card so I might have to buy one. Great tip.

-I read up a bit on OVF. Looks better than copying the whole VM folder indeed since it copys the used space instead of the whole provisioned space.

-Yeah the config is not very complex. I might do a manual config.

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Re: Help to show VMHost name on a script

October 14, 2016, 12:44 pm
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Re: Move-VM between datacenters on same vCenter

October 14, 2016, 1:24 pm
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Managed to get that to work with some more code from lucd.

 

$vmName="TestVM"
$serialName="Serial port 1"
$startConnected=$false
$connected=$false

$vm=Get-VM-NameTestVM

$spec=New-ObjectVMware.Vim.VirtualMachineConfigSpec
$dev=New-ObjectVMware.Vim.VirtualDeviceConfigSpec
$dev.Operation="Edit"
$dev.Device=$vm.ExtensionData.Config.Hardware.Device|
  where {$_-is [VMware.Vim.VirtualSerialPort] -and$_.DeviceInfo.Label-eq$serialName}
$dev.Device.Connectable.Connected=$connected
$dev.Device.Connectable.StartConnected=$startConnected
$spec.DeviceChange+=$dev

$vm.ExtensionData.ReconfigVM($spec


Thank you so much for all your help!

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Unable to uninstall vCenter 6 with embedded platform services controller

October 14, 2016, 1:43 pm
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Short version. Server was deployed accidentally with wrong name. vCenter 6 with embedded PSC was installed. We changed server name, did not know this would break vCenter. According to this page, we need to uninstall vcenter and reinstall, but it will not uninstall. Seems like it's trying to uninstall the services, but since they won't start or stop it can't remove them. How do I get it uninstalled?

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Re: Performance Troubleshooting for our customer

October 14, 2016, 2:14 pm
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CPU-%swapWait - tells you how long the VM has to wait for swapped pages read from disk. Memory over-commitment a possible culprit.

 

CPU-%System - time spent by the system to process interrupts and other system activities. Culrprits - high I/O VMs

 

DAVG - device driver level latency - storage performance issues

 

 

Looking at your graphs it surely looks like your storage is not keeping up with the demand or is improperly configured. Also there are a ton of dropped network packets, which could indicate heavy load on your hosts.

 

You mentioned this is your VDI environment. Does this occur all the time? During a recompose or refresh operation? What is the VDI back end storage look like. Are you using SSDs for the OS disk?

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Re: Moving existing virtual machines to new iMac.

October 14, 2016, 2:22 pm
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Best networking setup for a two server home test lab

October 14, 2016, 2:25 pm
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I am building a test lab ( I want to learn more about VSphere/ESXi, Vmotion etc.. ) and am putting my own linux servers etc…. on it.

I have two ESXi servers, both with only one NIC in them on a 192.168.0.* network.  Also a NAS on that same network.

 

The more I learn, the more I see that there are typically separate networks for:

-Vmotion

-Storage

-Management

-VMNet??  Don’t know what that is.

 

What is a good setup for networking on this do you think?  Would two nics per box do it? 

 

192.168.0.* for Management and general networking on one NIC

10.1.1.* for Vmotion, Storage, and VMNet??

 

Just wondering if you have any thoughts on this. 

 

I can see that all if it on one network may not be the best and might cause VMotion issues as well.

 

Thoughts?

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Re: find virtual machines by business group name and virtual machine name filter

October 14, 2016, 2:28 pm
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I am have no luck getting this to work.  Can you help me with the full code i cant get it to work.

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Re: Rename datastore so slow to complete - or at least confirm completion?

October 14, 2016, 2:29 pm
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@KevinLeekKC

 

Having the same issue. I'm scripting Datastore renaming via Java.  Some datastores (with a single small VM) are taking 40 seconds but others are taking 15 min.  Did you ever find a resolution or workaround?

 

Version 5.5.0 Build 3154316

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NSX DFW - Traffic Dashboard

October 14, 2016, 2:30 pm
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In LogInsight 3.6 with the NSX content pack at the Distributed Firewall - Traffic Dashboard.

 

My query is on vmw_nsx_firewall_ruleid = 1010 this rule is a deny rule in NSX. The only widget that populates is "Application ports denied". IP sources or destination IP addresses do not populate.

 

When looking at the query that drives "Top Firewall Destinations" it is filtering on vmw_nsx_firewall_action  contains pass. How do I get rid of the "Pass" in the widget on the dashboard so I can see all the data on the Dashboard correctly?

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Re: USB Redirection breaks when creating automated VMs from templates

October 14, 2016, 2:30 pm
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So I found the problem, and its similar to the one described in your KB article, but slightly different.  For one, the problem is affecting our vcenter-only desktops, not the linked clones.  This appears to be for three related reasons:

  1. Sysprep causes devices to be reinstalled on the resulting desktop (Quickprep does not do this)
  2. c:\windows\system32\driverstore\filerepository contains a folder with USB drivers for View 5.3 and another folder with USB drivers for View 6.2.1
  3. During the sysprep-induced device re-install, Windows on the new desktop does not choose the latest driver version for the USB hub, but rather an older one.

 

The fix was to remove the older driver folders from c:\WINDOWS\System32\DriverStore\FileRepository on the template VM.  This makes it so that the new desktop cannot find any old drivers, only the 6.2.1 version.  It then has no choice but to install the latest driver.

 

After this, the USB redirection worked properly on all new vcenter-only desktops.


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VHA 5.0.6 with View 5.3.1 - "Service Error Occurred"

October 14, 2016, 2:36 pm
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I've seen multiple threads around the net on this and have tried all the memory, iscsi tweaks etc but I cannot get either of our View environments to pull successfully. One is View 5.3.1 and the other is 5.2.0 but both fail at 20% with the same error. I have tried to download older versions of VHA just to test and I cannot find active download links either for 5.0.5 or 5.0.4

 

I've also submitted a ticket to support as noted in other threads with no response.

 

Please help or supply older version download links for VHA. Thank you!

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Connection attempt is taking too long - anyway to increase this timeout?

October 14, 2016, 2:38 pm
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Happy Friday!

 

Having an issue with users accessing a View 6.2.3 environment using BLAST and receiving an error: "The connection attempt is taking too long to complete. Do you want to cancel?"

 

The pool is set up to power down desktops after log off to conserve resources (classroom environment - lots of desktops across multiple classes but only heavily used during a specific class times).  When a user logs in and launches the desktop, the desktop machine powers on as expected.  From power on to the desktop being ready to accept the connecting is averaging around 40 seconds.  It appears that this time out for the connection attempt is 30 seconds. 

 

view-connection-attempt.png

 

If the user clicks No (to not cancel the connection attempt) the desktops launches after about an additional 5-15 seconds. Anyone know of away to increase this time out?

 

I have not tested with the View Client since BLAST is the primary method for accessing this environment.  Check through the GPO settings and couldn't find anything, but I may (likely) have overlooked something.

 

Any help appreciated.

 

Thanks

Hersey

http://www.vhersey.com/

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Re: Different Way of VCSA-6 Installation

October 14, 2016, 4:30 pm
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So the ESXI can be any machine running with some Guest O/S like windows or must be without Guest O/S?

 

 

Jehan

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Re: Unable to mount Windows 2008 NFS Datastore in VMware vSphere

October 14, 2016, 4:31 pm
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this answer should be marked as good, this definitely solved my problem, and I had tried almost anything. thanks!

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Re: How can I add additional disk space to this VM?

October 14, 2016, 4:32 pm
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Hi,

Its look like the datastore in which the virtual machine resides in is out of disk space. You first need to create a space on datastore by cleaning the redo logs.

1) What is the free space available on datastore ?

2) Can you try taking a new snapshot and then check the .vmdk file path (must be the latest file name after a snapshot) and then do Delete All to free up the space.

3) Or else if you can migrate the unwanted VM / files which are not in use from the datastore to free up the space


 

 

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Creating New vSphere Distributed Switch with LAGs and LACP

October 14, 2016, 6:09 pm
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Does anyone know of a good resource for building the virtual switch with LACP LAGs? I have never done this before and I am kind of at a loss. I have an 8-Node All Flash cluster I am trying to bring to life properly but they changed the configuration on it and told me I was required to change the configuration to LACP.

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Template

October 14, 2016, 6:55 pm
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This should be an easy one. I am just looking for a way to create a VM as a template. I want to have a machine where if I break it, I can spin up a new one with the same settings.

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Re: Error when creating a Logical Switch - A specified parameter was not correct: spec.uplinkTeamingPolicy.uplinkPortOrder.activeUplinkPort

October 14, 2016, 7:05 pm
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I am observing the same symptom with my NSX on the same version.

 

The only change was when I removed an unused dvUplink (dvUplink3) from the dvSwitch and the creation of new LS started to fail. dvUplink1 is active, dvUplink2 is standby.

Re-adding dvUplink3 as an unused uplink did not resolve the issue.

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