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Client Server application performance impact due to high TCP packet retransmission issue

January 25, 2015, 1:34 am
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Folks,

 

I'm having having serious application performance problem with my vSphere environment where I have deployed a couple of stand alone SQL Server database VMs (4x VMs) to be used by some of the Application Servers VMs (4x stand alone VMs) which is running Oracle Forms (Java) servers. The users are connecting from their own workstation from various geographical locations in Asia Pacific, the Data Center is in Australia.

 

User (150 users of Win7 workstations) --- RDP TCP/3389---> Terminal Server pool VMs (one of 45x available VMs) --- Oracle Form HTTP app TCP/80 ---> Application Server--- SQL Server TCP/1433---> SQL Server VMs.

 

Somehow, Network Operations team report that there are some consistent occurrence of TCP retransmit package in between the Application Server to the Database and also between the Terminal Servers.

the occurrence happens in all type of scenario same ESXi host or even different ESXi host

 

Hardware:

HP BL 465c G7/G8 Blades on c7000 enclosure

HP Virtual Connect modules

 

Software:

vSphere 5.1 U1 for all HP Blades running ESXi and the VCenter server.

All terminal servers (RDSH) and Guest OS: Windows Server 2008 R2 Std. SP1

Database: SQL Server 2005 and 2008 R2

 

What could cause TCP retransmission on the virtual environment ?

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Get VM downtime

January 27, 2015, 3:35 am
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Hi all experts,

 

I´m trying to extract information regarding VMs from vCenter environment.

I have a nice PowerShell script that grabs several status from VMs in the environment but I´m struggling to get the time that a VM has been shut down.

I can get the status of the VM but it would be nice to get who long time the VM has been down/powered off.

 

Also nice if anyone got a great solution on getting the VMs uptime.

The uptime I can get is only the uptime on that specific host and as we use automated apps for moving VMs around within the cluster to even the load this value is not telling me the truth.

 

Thanks in advance.

 

// Br

Per

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Fusion and build 9926 of Windows 10, Window Resizing Issue

January 24, 2015, 8:15 am
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VVMware Fusion and build 9926 of Windows 10 has window resizing issue, in that the Win 10 window will not resize to the Fusion window.

 

ALso, installing tools goes into an infinite loop.

 

Parallels 10 has the same issues.

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VCenter 5.1 startup failed

January 27, 2015, 3:40 am
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Dear colleagues,

 

I have a problem starting my VCenter service and I see in SSO log files the following:

trace.com.rsa.riat.ws.security.trust.WSTrustContract, DEBUG, <server_name>,,,,Creates and Expires time elements are not null in the RST

trace.com.rsa.riat.ws.security.trust.WSTrustContract, ERROR, <server_name>,,,,Configuration Error

 

If I compare with successfull startups/logins earlier I see that normally I should have:

trace.com.rsa.riat.ws.security.trust.WSTrustContract, DEBUG, <server_name>,,,,Creates and Expires time elements are not null in the RST

trace.com.rsa.riat.ws.security.trust.WSTrustContract, DEBUG, <server_name>,,,,Requested lifetime for the token is more than the allowed lifetime

...

 

I know that a year ago (exaclty) I was renewing the cerificates and as well changed admin password. But normally I have renewed certificates again in december, and I already tried to reset admin password using rsautil, this didn't help.

Unfortunately on this setup I do not have webclient, and I can't install it now because sso reg procedure fails with same error: configuration error.

 

Any help will be appretiated,

 

Thanks in advance,

Artyom

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Creating snapshot on VCenter VM during the VCenter 5.1 upgrade process ?

January 26, 2015, 7:28 pm
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People,

 

My VCenter server is a VM running on ESXi host number 01 (I pinned down specifically using DRS rule), so is it advisable to take snapshot for VCenter Server VM during the upgrade process ?

 

What happened when the upgrade process failed ? can I safely rolled back the snapshot ?

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Can I run my windows server 2012 virtual machine on thunderbolt hdd??

January 27, 2015, 1:39 am
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Hi

I am using VMware Fusion 7.0 on Macbook Pro Retina 2014 (2.5 GHz, 16GB Memory, 512GB HDD).

I have an external Thunderbolt HDD, can I run the virtual machine (Windows 2012) on the external HDD??


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Windows 10, Workstation 10, no LAN bridge

October 3, 2014, 6:58 am
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Hi!

 

So, I'm running Windows 10, 64x tech preview. VMware workstation (latest greatest build (10.0.3) installs and it works just fine.

 

I always link a VMnet to a dedicated physical NIC. (bridge), however, even though I'm able to configure it, it simply doesn't work. The VMnet works fine internally on workstation, but not a single packet seems to be able to transfer to the host.

 

No firewall running, the VMware bridge drive is installed properly. When I create a host adapter for a virtual network and bridge it with the physical one it works, too. But a direct bridge doesn't work.

 

Can anyone running Windows 10 64x tech preview confirm this? It's quite simple configured as below.

 

Schermafdruk 2014-10-03 15.55.01.png

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сбор статистики по вирт.машинам (IOPS)

January 26, 2015, 1:20 am
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Доброго дня, коллеги.

Собственно столкнулся с такой бедой.

Сейчас в пилотном проекте запушен VDI на 30 машин. Примерно месяц назад на машинах начались серьезные фризы, в результате раследования оказалось что датастор на котором идет тестерование просто просел по iops.Собственно вывод был сделан из системы мониторинга и логов СХД. А можно ли как то отмониторить IOPs со стороны Vcentra, то есть посмотреть сколько iops генерит каждая машина на датасторе.

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A question of vm snapshot in Esxi

January 27, 2015, 3:53 am
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Hi, all

 

I have created two virtual machines in Esxi named vm_001 and vm_002

the directory of them is:

/vmfs/volumes/datastore1/VM001               /vmfs/volumes/datastore1/VM002

                        |------vm_001.vmx                                    |------vm_002.vmx

                        |------vm_001.vmdk                                  |------vm_002.vmdk                                      

                        |------vm_001.vmsd                                  |------vm_002.vmsd

                        |------ ...                                                       |------ ...


specially, I mount the vm_002.vmdk disk to VM001,  then take a snapshot of VM001, after that,

if open the vm_001.vmsd, the content of this file is :


.encoding = "UTF-8"

snapshot.lastUID = "1"

snapshot.current = "1"

snapshot0.uid = "1"

snapshot0.filename = "VM-fnst-test-Snapshot1.vmsn"

snapshot0.displayName = "vm_001-snap"

snapshot0.createTimeHigh = "331165"

snapshot0.createTimeLow = "1181461572"

snapshot0.numDisks = "2"

snapshot0.disk0.fileName = "vm_001.vmdk"

snapshot0.disk0.node = "scsi0:0"

snapshot0.disk1.fileName = "/vmfs/volumes/datastore1/VM002/vm_002.vmdk "

snapshot0.disk1.node = "scsi0:1"

snapshot.numSnapshots = "1"

 

the red content show the path of two disks mounted to VM001

Now I must copy the file under /vmfs/volumes/datastore1/VM001 and /vmfs/volumes/datastore1/VM002 to a new directory, the new  directory looks like:

vmfs/volumes/datastore2/VM001               /vmfs/volumes/datastore2/VM002

                        |------vm_001.vmx                                    |------vm_002.vmx

                        |------vm_001.vmdk                                  |------vm_002.vmdk                                      

                        |------vm_001.vmsd                                  |------vm_002.vmsd

                        |------ ...                                                       |------ ...


after that, the question comes out:

the fist disk path of vm_001.vmsd is ok, but the second disk path of vm_001.vmsd is still "/vmfs/volumes/datastore1/VM002/vm_002.vmdk", actually I want it to be the new path "/vmfs/volumes/datastore2/VM002/vm_002.vmdk ".

Of course, I can modify the vmsd file and make the value of "snapshot0.disk1.fileName" to the new disk path by myself,  but I want to know is there any official vmware cmd or API to change the disk path in vmsd file, or any official method to copy the vm with updating the disk path in vmsd file automatically?


Thank you very much

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Problem with MimeAttachment

January 27, 2015, 2:04 am
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I trying to upload a csv file from a local computer into a workflow

Local computer is a Win 2008 R2 running the vCO client

I found out i have to use mimeattachment as the data type (input)

every time i try doing it i get

 

[2015-01-27 10:35:06.824] [I] Permission denied on file '/var/lib/vco/app-server/bin/MimeAttachment:ch.dunes.scripting.jsmodel.JSMimeAttachment@647ae42f' , read not allowed

 

i then edited the file js-io-rights.conf

and changed it to

 

+rwx /

+rwx /var/run/vco/

-rwx /etc/vco/app-server/security/

+rx /etc/vco/

+rx /var/log/vco/

 

Now the exception thrown is

 

File Not Found : MimeAttachment:ch.dunes.scripting.jsmodel.JSMimeAttachment@59857f85

 

Any suggestions??

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Problemi Scheda rete su Ubuntu dopo Import.VM da WS a ESXi

January 27, 2015, 3:59 am
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Salve a tutti,

 

io ho questo problema, ho installato un ESXi 4 sul mio server DELL R410 e ho importato 2 VM (Un Windows Server2003 STD e un Ubuntu Server 9.10) da files vmdk di WorkStation 7.1.

L'importazione è andata a buon fine, senza problemi, infatti le VM su ESXi partono. Però, Ubuntu Server non riconosce la Scheda di rete.

Ho letto che ci sono delle tools VMWare da installare su Ubuntu, ma non riesco a trovarle... credete che queste possono aiutarmi?

Oppure c'è qualche (Altra) procedura che non conosco?

 

Grazie a tutti in anticipo.

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Capacity Planner Installed, collecting, sychronizing but no processing

December 4, 2014, 4:45 pm
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I installed CP on a customer site where we configure access to a number of systems.  Perf data is being collected and data is synchronized upstream to optimize.vmware.com.  However, when I go to look at the portal it consistently reports that data was synced but not systems are ever ready.

 

Here is what I see from the portal and specific project; it has said this for more than a week...

 

Data for the systems is uploaded but is not yet processed. The Dashboard processes system data at midnight, so you can review analyzed data tomorrow morning.
Last Data Sync:  12/4/14  3:39 PM
You have successfully registered the collector and synchronized the
collector with the Dashboard. You can now monitor collected data by
clicking on Collection Dashboard, View System Status, or View Missing
Data.
If the system data was uploaded more than 24 hours ago but is not
processed, click the troubleshooting link. For more information, click one
of the following links.

 

Here is what is record at the "Monitor Uploaded Inventory Files"

 

Cannot display collection dashboard: no inventory or statistics data has been collected

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Windows 10 & VMware Player 7: problemi di risoluzione dello schermo

January 27, 2015, 4:31 am
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Ho già postato nella sezione in lingua inglese ma purtroppo nessuno riesce ad aiutarmi. Provo anche qua sperando di avere un po' più di fortuna!

 

Sto provando la technical preview di Windows 10 su macchina virtuale usando VMware Player 7. Con l'ultima build, la 9926, mi è sparita la possibilità di configurare la risoluzione dello schermo su 2560x1440 (con la build precedente, provata su VMware Workstation 11, non ho avuto nessul tipo di problema): ho disponibili solamente 2560x1600, 2560x1920 e poi tutte le risoluzioni da 1920x1200 in giù.

Ho chiesto nel forum Windows Insider, ho chiesto nel forum TechNet, tutti mi hanno consigliato di rivolgermi alla community di VMware perché probabilmente è un problema del software di virtualizzazione.

 

Ora vi chiedo: qualcun altro ha riscontrato il problema? Sapete come aiutarmi?

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ESXi 5.5 build 1623387 PROBLEM (Purple screen)

January 26, 2015, 5:16 am
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Hello,

 

we have HP DL 585 G7  Server wiith 320 GB RAM (recently updated RAM)

I found today server offline, with all VM down. When I went to server room, I found this on server monitor.

After restart server is working OK, but I don`t know is this issue is going to repeat. Does anyone have an idea what is causing this error?

ESXi screen shot.jpg

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vCenter 5.1 update to version 3 - language issue

January 27, 2015, 4:32 am
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Hello,

I would like to ask about installation vcenter language.

In my case I have installed vcenter server 5.1, when I try run installer (vcenter with pathces version 3) it is always open in french language (i guess that it is default language vcenter).

How can I force another language - english or prompt for language choice?!

I tried use parameters for installer SSO /L with 1033 but only first installer run in english, second one (msi I guess) run in french already...

I will be grateful for tips.

M.

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Exit standby mode in ESXi

January 13, 2015, 12:37 pm
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I have vcenter appliance with 4 Esxi , when I put any Esxi server in stand by mode I cannot wake up it again , I read these two articles Exit standby mode task timeout and the host status is not update in vcenter server (2012152) and extending the default timeout period for vcnter server (1017253) but I cannot solve the problem

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Got the error message when i logged on the vCenter Web Client

January 24, 2015, 6:24 am
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Hi,

 

i met an error when i logged on the vcenter web client, the error has enclosed with the attachment

 

i dont know how to solve it, can someone help?

 

i mean the error: unable to create the managed object for.........

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MS SQL 2012 Cluster Change from Shared to Non-Shared

January 27, 2015, 4:46 am
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Hi there!

 

I currently have a HA ESXi 5.1 environment where I have 2 SQL2012 Standard Edition Clusters with 2 servers each and a RDM from our storage.

We use the MSCS with one shared disk but using this, we cannot migrate our servers while the host is powered on.

 

My question is whether there is a way to change my SQL setup to have a separate database on each host with replication so I can be in full control whenever I want to migrate the servers from one ESXi host to another.

 

Thank you!

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Current license or ESXi version prohibits execution of the requested operation

October 20, 2014, 5:18 pm
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I get the following error when I try to shutdown or reboot a ESXi 5.5 update 2 host as well as start, suspend, or shutdown VMs: "Current license or ESXi version prohibits execution of the requested operation." I am using version 1.4.509000 of the Android app.  This app should let me do these basic operations just as the free vSphere client does as well. I'm not sure if VMWare is purposefully restricting what we are allowed to do in the app or if the app has a bug that prevents it from doing these basic tasks.

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Can VMware Workstation run on a Windows 7 Pro laptop whose only hard disk drive is encrypted with Bitlocker?

January 21, 2015, 4:43 am
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Good day all.  While I normally find the answers I need with a few quick searches on the Internet, I wasn't able to find the answer to this question.

Does anyone know with certainty that VMware Workstation can run on a Windows 7 Pro laptop whose only hard disk drive has been encrypted using Bitlocker?

 

I need to write a proposal for a purchase at work and need to know whether or not I'll be able to use Bitlocker on the host computer on which VMware Workstation runs.

 

 

Thank you,

 

John K. Weaver

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