VMWare ESXi is an installable/embeddable virtualization platform based around the ESXi Hypervisor.

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Packet capture on ESXi host

I have an issue I am trying to track down and I believe the problem is with physical networking hardware. I have read the VMWare documentation on the pktcap-uw command and I know I can use it to dump ...
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95 views

VMotion Migrations and MySQL Databases

I am currently tasked with evaluating VSphere and VCenter server. I read about the VMotion feature: http://www.vmware.com/files/pdf/VMware-VMotion-DS-EN.pdf This could come in very handy for us. ...
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67 views

ESXi 5.5: more than one hour to power up a Win2K VM

Around one year ago I installed an ESXi 5.5 to virtualize an old physical Windows 2000 server that, unfortunately, cannot be easily upgraded/migrated/replaced. Main ESXi datastore was created on top ...
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231 views

VMWare ESXi and iSCSI via FreeNAS

I've recently been setting up a sandbox ESXi environment with a VM running FreeNAS providing a volume which is connected as a datastore on the host via iSCSI. I've created a VM on this datastore and ...
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120 views

Connectivity issues to hosts over MPLS

Original thread on VMware for reference: https://communities.vmware.com/thread/490718 Hello, We have been troubleshooting an issue that prevents our vCenter server from connecting to some of our ...
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144 views

Checking if two virtual machines are running on the same host

Is there a way to see if several Virtual Machines are running on the same host? Specifically, I have three VMWare VMs (each running a Ubuntu Server 14.04) and I have tried to compare different pieces ...
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634 views

How to make sure file in VM's folder is copied with VM when cloning VMWare Virtual Machine

I am running a vmware environment (Version 4 unfortunately) which requires me to use a bios rom file in order to run server 2012. I upload it to the root folder of the VM after creation, before boot ...
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33 views

VMware ESXi - what happens when unable to create a secondary instance of a VM for fault tolerance

Is anyone aware what would happen if VMware ESXi is unable to start back up a secondary instance of a VM configured for fault tolerance? Is there a fallback plan to try and get the VM up? Or is the VM ...
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2k views

VMware vCenter cannot connect to ESXi Hosts

I have a mixed version ESXi environment with versions 4.1, 5.0 and 5.5 hosts. I also have a standalone server, running Windows Server 2012 R2 that has vCenter 5.5 installed on it. All these servers ...
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92 views

Ubuntu dd test becoming slow over time under ESXi 5.5

I have a HP DL320e running the custom HP build of ESXi 5.5.Guest is a Ubuntu server 14.04 with vmware tools installed. Write speeds to the two SSDs in RAID1 (disk added with thin provision) are great ...
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2k views

ESX NFS error "Cannot open volume: /vmfs/volumes/

I'm trying to add an NFS share to my ESX 5.5 server. When I try to add the share, I get the following error: Call "HostDatastoreSystem.CreateNasDatastore" for object "ha-datastoresystem" on ESXi ...
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69 views

How to copy locked swap files in ESXi?

Based on this question : How to disable swap files in ESXi?. The main answer states that it is possible to extract data from the swap files (for exemple using strings) so I tried to make a simple ...
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136 views

VMWare vSphere Distributed Switch configuration of two ESXi Host

I have two ESXi hosts (5.1 and 5.5) that I added them to a vSphere Distributed Switch. The VMs in each host can ping other VMs in the same host but cannot ping other host's VMs. All the VMs are part ...
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544 views

Slow ESXi guest performance affecting entire host

I'm running ESXi 5.5 (Build 2068190) on a Dell PowerEdge R220 server with the Intel E3-1220v3 CPU. It also has 16 GB of RAM installed and 2 x 1TB SATA disks running as RAID1 using a Dell PERC H310 ...
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409 views

ESXi Windows Server 2003 Guest 32-bit Installation gets stuck on blue Starting Windows screen?

I'm trying to install Windows Server 2003 Standard Edition 32-bit as a guest on ESXi 5.1 for testing purposes; but when I try to install it, it gets stuck on the blue Starting Windows screen and the ...
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21 views

Can an ESXi 5.1 VM have Applicaiton Aware Image Processing enabled at the sametime it has Freeze/Thaw Scripts?

So you can't enable Application Aware Image Processing at the same time you have Freeze/Thaw scripts enabled. But in the event that you have a VSS Aware (such as SQL Server 2008 R2) database on ...
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142 views

Send keystrokes Vmware ESXi Linux installation

I'm trying to automate my Linux installation using VMware ESXi. The OS is a custom ISO from vendor which only asks for 2 things: 1) Check Media integrity 2) Confirm formatting existing Hard Disk. I ...
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324 views

virtualize or bypass EPT support in Vmware Esxi

I am trying to run a VM that requires EPT support, which my cpu(X7350) appears to not support.(Enabling hardware MMU creates an error saying that host does not support EPT). When I run that VM i get ...
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151 views

Processes surviving Windows VM reboots?

Summary: A long-running virtual Windows Server 2012 system this weekend became very slow; from remote we did Restart-Computer -ComputerName xyzzy -Force, which succeeded by all accounts; except that ...
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69 views

vsphere HA host monitoring

Something I stil can't figure out is the optional HA setting : "Host Monitoring". What if you ENABLE HA, but you DISABLE 'host monitoring" ? How will HA be able to detect which host doesn't have a ...
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752 views

VMware ESXi extremely slow Virtual disk performance compared to RDM

I have a ESXi 5.5 server running with a FC SAN. The FC san is created using an openfiler OS with software RAID and exported with the qlatgt driver. Direct writes to this SAN when no VMFS is used work ...
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146 views

NFS Datastore Disconnects When sVmotion Migration is Attempted

I have a EMC VNXe 3100 and I had tested both iSCSI and NFS connections from it to my hosts, with NFS appearing to be the better of the two. So I set it up and in my testing with 1 VM everything ...
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304 views

What does the ESX helper0-0 process do?

I have a laptop used for development purposes (EliteBook 8540p) upon which I have installed ESXi 5.5 to run multiple servers and make use of snapshots for rollback. After installing ESX and prior to ...
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398 views

VMware ESXi multiple I/O latency warnings

VMware ESXi 5.1.0 server showing multiple warning events: Device mpx.vmhba1:C0:T0:L0 performance has deteriorated. I/O latency increased from average value of 3913 microseconds to 530954 ...
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219 views

How do I rebuild a VMhost datastore following a corrupted installation

My server was shutdown at the weekend for a planned power outage to our building. When I tried to the bring the server back up, along with some errors about logical drives that did not exist (now ...
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382 views

Massively large number of packets dropped by interface

I have a virtual machine on ESXi 5 acting as a firewall for a PBX, it is running vyatta. When I run tcpdump on any interface, I get some ridiculous numbers! e.g. 4 packets captured 402 packets ...
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418 views

Upload from VMware Workstation 10 to ESXi 5.1 fails consistently with `Upload failed: Execution aborted.`

Situation: VMware Workstation 10 on Windows 8.1 ESXi 5.1 on HP XW6600 Connecting by IPv4 IP address (i.e. no DNS resolution is used) Both connected to the same physical Gigabit router Just ...
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180 views

HP LeftHand StoreVirtual VSA host affinity

I am testing the HP LeftHand StoreVirtual VSA for ESXi 5.x (a 3 nodes setup, hosting the VMs in the same hosts that have the VSA appliances). Is there a way to define some sort of 'ESXi host to VSA ...
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321 views

Adding external datastore to esxi, expanding datastore

I have an esxi 5.1 on a 1U server, accessed using vSphere. There are two 160G HDD's inside on RAID1. I'm looking to expand the number of VM's and the required storage is going to exceed this paltry ...
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229 views

Wrong time on RODC after dcpromo

My team has been experiencing this strange problem: After doing dcpromo (followed by reboot), the time on the newly promoted RODC rolls back to the year 2011. Before dcpromo, the time is correct. ...
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64 views

Fresh ESXi Install, Strange Routes

Hoping someone can explain and/or confirm this in their ESXi setup. On a fresh install of ESXi, when I ssh in and run esxcfg-route -l, I see the following: Network Netmask Gateway ...
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228 views

Vmware Nas slow transfer rates/IOPS

I have built a test environment with a Synology RS812+ and an old HP140 server which has a gigabit nic installed. I have dedicated one nic to the network to DHCP and the direct to NAS from the server ...
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591 views

SQL Server 2012 Cluster BSOD

I'm trying to set up a SQL Server 2012 SP1 "AlwaysOn Failover Cluster Instance" on top of a Windows Server 2012 R2 cluster (cl01) consisting of 2x 2012 R2 nodes (sql1 and sql2). Hosted on VMWare ESXi ...
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103 views

Why is there no output being returned from my check_esx_cim plugin?

I've got several ESXi hosts running v5.0.0-469512 . I'm monitoring these hosts using Icinga. Recently I had to re-install one of these ESXi hosts and after re-installing I can't get all of my ...
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2k views

VmWare Host connection keeps on breaking

I have installed VMware ESXi 5.1 and configured the static IP. When I try to connect to the host using the vSphere Client it logs in sucessfully. But after that when I try to access any thing I get ...
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764 views

Tuning performance in Windows Services for NFS — slow write performance from client to server

Background: I'm using a NFS datastore in esxi5.1 to do some ghettoVCB backups. The NFS share resides on a Windows Server 2008R2 box, using Windows Services for NFS to distribute the share. Writes to ...
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1k views

VMWare ESXi 5.0 Networking Issue

I have an issue with 2 new ESXi hosts. OS - ESXi5.0 Custom Dell ISO patched up to Build 1024429 DELL R820 with 1G network 2 ports from integrated MB NIC(Intel) connected to 2 juniper switches, one is ...
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285 views

tftpd-hpa inside VMware server fails to deliver files for PXEBoot

I've a PXE server for network installation. Everything was working fine until we virtualized the server using VMware ESXi 5.1. When we try to boot a machine through the network, it got an IP from the ...
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2k views

Can't complete interrupted update of ESXi 5 to U2

I've been trying to do an interactive update of VMware ESXi 5.0.0 update 1 to 5.0.0 update 2 via the installer image burned to a DVD. The first time I ran the update, all seemed to go fine at first. ...
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84 views

VCenter Upgrade Does not work

Task/Details We need to upgrade our Vcenter enviornment from v4.1.0 Build Number: 799345 to v4.1.0 Update 3 Build Number: 816786 Problem After backing up the database and the SSL certificates we ...
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566 views

ESXi 5.1 local datastore no longer accessable

I'm running ESXi and just recently rebuilt a raid array, and now an existing local datastore is no longer accessable in ESXi. The details: Original Configuration: 1x usb drive (on the backplane) ...
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391 views

Windows XP VM on VMWare ESXi 4.1 “pausing” / blocked occasionally

We have an issue with Windows XP SP3 VMs on VMWare ESXi 4.1.0 (the free version): They sometimes seem to "pause" for several minutes. This happens rarely (maybe once a week per VM, we don't always ...
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441 views

LUNs disappear after rebooting the ESX/ESXi host

A single LUN among from a group disappeared following the ESXI host restart. Neither the host nor the Vcenter can see it. I have four virtual machines on the LUN hiden now showing just unknown from ...
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315 views

ESXi 4.1 CentOS 6.X eth0 unnavailable

I don't usually ask for help so directly, usually google have all i need but this time i'm seriously lost. Hope you can help me .s The thing is, i have a server with Vmware ESXi 4.1 and 5 already ...
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236 views

Force ESX(i) to check the consistency of your bootbank/boot.cfg

I recall once copying a bad tgz file to my bootbank and specifying to load it in boot.cfg. Needless to say this was bad - Purple Screen of Death, no boot, bad - and I should have been more careful. ...
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334 views

VMWare VMs not autostarting after reboot

I have an issue where my VMs do not auto-start after an ESXi reboot. They are all properly configured to auto-start, but after rebooting the ESXi they are still off -- I have to manually go and hit ...
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856 views

Cannot connect to Vsphere Webclient

I have a problem connection to the VCenter Web Client. I can connect and do some administration from the VLAN that the Vcenter server is on and this is working fine. But if I connect from our client ...
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577 views

High packet in discard percentage

We have several servers running VMWare ESXi 4 on which are virtual machines running OpenSUSE and Windows 2008r2. We also have a server monitoring these vm's using OpenNMS. For several of the OpenSUSE ...
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189 views

Should I consolidate multiple identical VMs into BSD jails?

We run a number of Openfire XMPP/Jabber servers. Due to the way Openfire works, we cannot easily run multiple Openfire instances on one server, so I have 5 identical VMware ESXi VMs, each with CentOS, ...
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40 views

Delivering EMC ISM by NETLAB+

I have made an EMC class with 15 students on NETLAB+. I have done the Pod cloning and assigned a single linked Pod to each student. But when students log into the class, everybody is connected, like ...