Script to collect some statistics on hosts and virtual machines

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• Difference between the hosts and virtual machines

  Happy new year!

  I guess that's a stupid question, but I don't know the answer to it.

  I created pools from VM. Some jobs in the pool are hosts and some virtual machines. What is the difference between the hosts and virtual machines. I thought I could only create virtual machines, but I guess I could create hosts as well. -What happened?

  Thanks for your help.

  where does say desktops are hosts?  A host is usually referring to an ESXi server.  A virtual machine is just the guest OS running on the host computer.  A pool is a group of VMs that can extend over several hosts.

  Gunnar

• ESXi 4 hosts and virtual machines with domains and different IP addresses

  Hello, I hope someone can shed some light on this problem.

  I have an ESXi host.  It is in the 'AREA A' and has an IP address like 204.75.225.6.

  Is it possible to use the tool VMware P2V Converter some servers that are located in one field other than ESXi host and have different IP addresses?

  Example: VM candidate: in "AREA B" with IP address 192.168.1.56.

  Both domains trust each other.

  Y at - it a tip to configure the network settings on the host to allow that?

  I currently have 2 vSwitches.  One for the management network and the other is for the traffic of the virtual machine.

  Firewall?

• go esxi hosts and virtual machines in one vCenter to another

  I built a new vCenter (Windows vCenter), I intend to move on ESXi hosts the old vCenter (Virtual appliance vCenter) to the new vCenter. I don't know if it's feasible, please notify my step is correct or not: 1) build a new vcenter 2) create a cluster with two esxi hosts first 3) Mount data (NetApp Filer Storage) to the new vCenter warehouses 4) add an empty host for the new vCenter VMs) 5 download then upload to the host in new vcenter

  Hi friend

  Its doable without any problem.

  Please follow the procedure below.

  1 build a new vCenter (your first step is correct)

  2 creating a cluster (because it is new vCenter there will not be any available host.) That is why cluster creation wizard will not get to add in the new cluster host). While initially empty cluster would be created.

  3. once the cluster is created, immediately do a right-click on the cluster and add your hosts one by one. Not necessary to cancel the registration and the VM. Virtual machines will automatically be added who were there on the data store available with all guests.

  Don't forget,

  1. we do not mount any store data in vCenter, we assemble the data store on the host.

  2. If you mount the new data store (which did not exist before), you can mount once the new hosts are added to the new cluster. (Your SAN admin help)

  3. If you want to move your virtual machines from data store before the newly added/mounted data store, please SVMotion these virtual machines (by right-clicking on the VM > migrate > data store > select the data store that is new)... Please follow the same procedure for all virtual machines.

  4. you don't need to add empty hosts to the new cluster, add just as soon as all guests without you register VMs. Later, you can migrate to other store of data according to the requirement. NO need to download or download the VM.

  5. Please make sure that your ESXi hosts will be compatible with the new vCenter. Old version of ESXi always compatible with the new version of vCenter. Just check if you have all valid licenses.

  Please let me know if you need any clarification

• Attempt vSwitch configuration change and now the ESXi host and virtual machines offline

  So I have no doubt, I have myself to blame for this one. I was trying to change my vSwitch from 100 Mbps to 1000 Mbps when an 'operation timed' error out jumps-to the top and my vCenter Server lost connection with my ESXi host. I tried to restart the host manually, but that did not help. The host is not the ping requests and all the virtual machines on that host are offline; None of them vMotion off to my other ESX Server.

  I tried to reconnect the host computer in vCenter, but it is obviously does not connect because it can't ping it. I logged the ESXi console and all the network settings appear to be correct. I'm used to connect to the ESX console where you can execute commands, but it's my first ESXi host, so I don't know what I can do.

  Any help is greatly appreciated!

  -D.

  If you had your management port and VMs on different vSwitches / NIC leave on framework would eliminate a false positive. As in your case the management port reportedly follows the cable / about speed, but the virtual machine network would be intact (and I'm assuming that your storage space as well).  In this case the VMs system would have worked very well even if the management port did not work.

  Dave

  VMware communities user moderator

  Now available - vSphere Quick Start Guide

  You have a system or a PCI with VMDirectPath?  Submit your specifications to Officieux VMDirectPath HCL.

• Possible to NFS share to the host and virtual machine?

  If I have a NAS with an NFS share present it to both my ESXi host and computer Windows 2003 virtual server at the same time?

  Yes, but you need client NFS on Windows or a storage with NFS and CIFS.

  André

• Do not click on in the VM and can not move files between hosts and virtual

  Do not click on in the VM and can not move files between hosts and virtual

  Home - Windows XP x 64 Edition

  Virtual - Windows 2003 Web Edition

  -vmware.log

  ...

  sept 23 14:10:17.875: mks | Setting size 40 pile of thread to 1048576.
  sept 23 14:10:17.875: mks | Adjusting size of 41 of the stack of the thread to 1048576.
  sept 23 14:10:17.890: mks | USBGW: Writing referee op: 13 len:36
  sept 23 14:10:21.718: vcpu-0 | Unified TOOLS loop capacity requested by 'box to tools-MDN; now sending via the TECO
  sept 23 14:10:21.718: vcpu-0 | GuestRpc: Channel 7, toolbox-MDN app reviews.
  sept 23 14:10:21.718: vmx | DnDRegisterRpc: Rpc of DND already set to 1
  sept 23 14:10:21.718: vmx | CopyPasteRegisterRpc: already the value 1
  sept 23 14:10:21.890: vcpu-0 | VMXVmdb_LoadRawConfig: Loading of raw configuration
  sept 23 14:10:22.000: vmx | DnDRegisterRpc: Rpc of DND already set to 1
  sept 23 14:10:22.000: vmx | CopyPasteRegisterRpc: already the value 1
  sept 23 14:10:23.750: mks | USBGW: Writing referee op: 13 len:36
  sept 23 14:10:30.703: mks | Setting size 40 pile of thread to 1048576.
  sept 23 14:10:30.718: mks | Adjusting size of 41 of the stack of the thread to 1048576.

  ...

  Any ideas?

  Thank you

  If your license key allows, update your VMware Workstation version 7.1.4

  Otherwise, at least upgrade your VMware Workstation to version 7.0.1

  In the menu bar, help-> Check for Updates on the Web.

• Is it posible to allow access between the host and virtal machine without wired network?

  I want to use my laptop to show him that I did in the virtual work to other people at my home.

  However, the laptop is ofen not allowed access to the network in their office.

  Is it posible to allow access between the host and virtal machine without wired network?

  VMware player

  My virtual machine is filled to the physical network adapter and use the static IP address.

  Brad

  Setting of the virtual machine: filled

  Change that to each host only (what Continuum called VMnet1) or NAT (VMnet8).  Both use a separate virtual NETWORK card to connect the physical computer virtual host, independent of any NETWORK adapter on the host.

  ... Since the machine host (win7) could not get IP, ping fail to VM (192.168.1.5)...

  Because the connection between the guest and the host is through a separate NETWORK card, you must use the 'other' IP address.  Access a prompt on the host computer and type IPCONFIG to view the IP address of VMnet1 and VMnet8 NIC.  Then use this IP address instead of 192.168.1.5.

  And when you have changed the network management modes (i.e. of bridged to host-only), Windows does not automatically renew its IP address.  The virtual NETWORK card uses a different subnet if you need to renew your DHCP lease or change your static IP address to work with the new subnet.

• To cut and paste between Mac and Virtual Machine

  My husband and I have VMware Fusion installed on our MacBooks. We use it to run WIndows XP.

  His continues to have problems. Windows crash then left outstanding programs. Now, he can not copy / paste between Mac and Virtual Machine.

  I can't find all the differences in our backgrounds. I'm not having problems he knows.

  Any advice on how to solve this problem, so it can copy / paste between systems again?

  Assuming that the MAC is stable and not giving any problems I try and see why the XP VM crashes and at least re - install VMWare Tools on XP because that is what is needed to copy and paste between host and guest operating system.

  Look in XP Event Viewer to see if you can see what happens wrong... Click Start and then right-click my computer and then click on manage, and then click Event Viewer.

  Perpahs try running a virus scanner or applications malicious XP if you think that it might be infected.

  If all else fails, try and repair the machine virtual XP from your XP CD...

• Question about the location of a host of virtual machines

  I work on temporarily to change the behavior of the DRS for a particular VM (in VI Perl), but my question is more general research of the root 'to host' for a particular virtual machine.

  The installation of the infrastructure program:

  + Folder1

  - + Cluster1

  -

  ---

  + Esx1

  -

  ---

  + VMs

  -

  ---

  + Esx2

  -

  ---

  + VMs

  .. .etc

  There are several clusters on different servers in this configuration.

  In order to manage the DRS by VM, I find the cluster that hosts the virtual machine.  The $vm_view - & gt; parent returns one 'value' (other than the name of folder) folder.  It seems that the only way to match the virtual machine to the cluster of accommodation is to do a brute force search, open multiple views and retrieve the values of each until I have a match, and then looking through each cluster in the corresponding folder to find the one that contains the virtual machine.

  Am I wrong?  It is an ugly and ineffective way to find the host for a virtual machine.  If I am not mistaken, are there plans for the addition of the hierarchy of the path to the view of the VM?

  A $view - & gt; config - & gt; value of path containing something like: file - & gt; Cluster - & gt; ESX Server - & gt; VM would be useful.  In addition, a function which maps values of resources to names of resources would be very helpful (with a code depend on a 'value' of the 'field-c125"and any other code that depends on a 'name' of"Cluster1"creates a lot of extra work).

  Thank you

  -David

  You can determine the Cluster that host a virtual machine by browsing through the ResourcePool of the virtual machine. Owner of the ResourcePool is the ClusterComputeResource who manages the virtual machine.

  $vm_view-> resourcePool->owner

  Also, to get the HostSystem that contains the Virtual Machine, you can follow the path

  $vm_view-> run-> home

  Regarding your suggestion to have a predefined path to access a managed entities, we have after explanation.  There are different paths through which you can access to the different managed

  entities of your inventory according to its hierarchy. Virtual Infrastructure gives you the flexibility to design your inventory. You can add a folder or host or a Cluster directly to your data center.

  Then it still allows a folder to have three objects as its child entity. If the path for any entity depends on the structure of your inventory. If a path can be set.

  All managed objects are uniquely identified managed objects ID. Name can be dupilcate for few entities in a data center, you can have two Resourcepools with the same name in different groups. Similarly, you can even named so that each entity is mapped using an object ID, and not a property 'name '.

• Collection of statistics on partitioned and non-partitioned tables

  Hi all
  My DB is 11.1
  
  I find that the collection of statistics on partitioned tables are really slow.
  

  TABLE_NAME                       NUM_ROWS     BLOCKS SAMPLE_SIZE LAST_ANALYZED PARTITIONED COMPRESSION
  ------------------------------ ---------- ---------- ----------- ------------- ----------- -----------
  O_FCT_BP1                        112123170     843140    11212317 8/30/2011 3:5            NO                    DISABLED
  LEON_123456                      112096060     521984    11209606 8/30/2011 4:2           NO                   ENABLED
  O_FCT                           115170000     486556      115170 8/29/2011 6:3            YES         
  
  SQL> SELECT COUNT(*)  FROM user_tab_subpartitions
    2  WHERE table_name =O_FCT'
    3  ;
  
    COUNT(*)
  ----------
         112

  I used the following script:

  BEGIN
    DBMS_STATS.GATHER_TABLE_STATS(ownname          => user,
                                  tabname          => O_FCT',
                                  method_opt       => 'for all columns size auto',
                                  degree           => 4,
                                  estimate_percent =>10,
                                  granularity      => 'ALL',
                                  cascade          => false);
  END;
  /

  It costs 2 minutes for the first two tables to gather statistics respectively, but more than 10 minutes for the partitioned table.
  Time of collection of statistics represents a large part of the time of the whole lot.
  Most of the work of the lot are at full load, which case all partitions and subpartitions will be affected and we cannot collect just specified partitions.
  
  Does anyone have experiences on this subject? Thank you very much.
  
  Best regards
  Leon
  
  Published by: user12064076 on August 30, 2011 01:45

  Hi Leon

  Why don't collect you statistics to the partition level? If your data partitions will not change after a day (score range date for ex), you can simply do to the partition level

  GRANULARITY-online 'SCORE' for partition level and
  GRANULARITY-online 'SUBPARTITION' for subpartition level

  You collect global stats whenever you can not require.

  Published by: user12035575 on August 30, 2011 01:50

• Stupid question? S/W antivirus on Host and Guest machines?

  Hi people,

  Maybe it's a stupid question and a really easy question to answer, but I have anitvirus software installed on my host machine and my computer invited? (One of each). Or could this posslibly causes some kind of conflict or slow down my whole system accordingly.

  Just to clarify my guest computer resides on the C: drive of my host computer and both are running windows 7.

  Thanks in advance.

  Carlo.

  Any system, physical or virtual, must have security measures in place.   Installing anti-virus on any system, physical or virtual, software affect performance to some extent and do it by running on the host and the compounds of comments however any system that has a network/Internet connectivity is in peril and the host does not necessarily protect comments or vice verse.

• Computers hosts and virtual will stay up if vcenter fails?

  We run vcenter 5.1.0 on a dedicated server.

  We have 3 guests in the vcenter which include 2 servers and a SAN.

  We have 14 virtual machines.

  If I take the vcenter server should I take all of my virtual machines? or they will stay up under their hosts?

  Thank you.

  Hi Barry,.

  You can unhook the vCenter Server no problem with that, the virtual machines will run in the host... To confirm that you can connect to the host directly using c# based vSphere Client...

  Kind regards

  Ajith

• ESXi and virtual machine CPU cores

  The question I would ask is the ESXi processor cores and relationship of the virtual machine CPU. Is it recommended to assign some carrots to VM (this is assuming that the VM needs CPU extra for reasons of performance)? We will use the following example. If the host ESXi lies the VM has 40 cores of the processor is recommended to assign carrots in 2, 4, 8 format to the virtual machine? And that's okay assign 6 since 40 is not divisible by 6.

  jrmunday: when it comes to carrots vs sockets, they are there for purpioses licenses, other than one vcpu is a vcpu

  soda: each kernel is a vcpu, so you should not worry of the underlying hardware and the divisibbility... It is not a mathematical formula to be used on the basis of underlying archatecture. the only reason underlying archatecutre would be important is VCA differences, not the underlying differences.

• SSD as Cache host or Virtual Machine Swap or both file?

  I recently acquired a 80 GB FusionIO card for my 5.0.0u1 of ESXi server. I've done some reading on how to correctly configure the SSD and I'm still unclear on how to proceed. It seems that there are two configuration options to be considered, host Cache Configuration and location Swapfile Virtual Machine. I don't want to use the SSD as a VM data store. Instead, I would use it to improve the performance of the VM.

  (1) may, and I use the SSD to the host Cache and swap file?

  (2) if so, did I have to attribute some of the SSD for the host Cache, say 40 GB and leave the remaining space for the swap file? Or I allow the Cache of host to use 100% of the SSD space then also allow the pagefile for all virtual machines?

  Thank you

  John

  You should be able to use any SSD so it is detected by ESXi.

  If you use this in production, make sure you first check the HCL.  If this isn't the case, as long the drive is recognized, you can use it.  Some time, SSDS are not automatically detected as an SSD.  In this case, you can label manually using the procedure, it is indicated in literature vSphere storage.

  http://pubs.VMware.com/vSphere-51/index.jsp?topic=%2Fcom.VMware.vSphere.storage.doc%2FGUID-C56B9994-24BF-4260-Baba-BAE38FFDCCED.html

  You can then add it as a store of the host Cache database.