Should the RAM for an ESXi host replaced the same ones remaining?

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• Change the path information for ESX ESXi hosts to access

  Hello all! I hope you guys can help me.

  I have about 47 hosts that I need to change it Round Robin storage path information. If I make the change in vCenter and restart the host it again changing fixed. So, I thought that I should change it to the level of the host through esxicli.

  I have about twice as many LUNS of the Hitachi SAN. I'd like to see if it is possible to make the change in all areas, in some way, or I need to make the change by host? Also, is there anything that I need to change sides San so that it works or not.

  I saw this VMware KB: modification of path information for ESX/ESXi hosts to access and assume that it is the best plan? But did not know of all put into custody, if necessary, that everyone ran to when doing this?

  You will need to make the change by the host and the KB you'll find is the right method.

• Whenever I have shut down my computer it detects 2 updates. I checked the updates of Windows and it seems to be the same ones every day.

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• Can I use the total amount of resources (cpu/ram) of two esxi hosts if I place a cluster so that a single VM gets all resources?

  I use vCenter 5.1 with two esxi 5 guests, both exactly the same (Evga SR - 2 pc with two Intel x 5670 each) with the exception of the disk storage. Processor x 5670 a 12 hearts if HT is enabled. Since then, I have 4 of these processors that would be 48 cores. Each processor is clocked at 4 GHz for a total of 16 GHz. Each host would also 24GO of total Yes 48 GB of ram.

  I doubt that this is possible, but what I want to do is to install a virtual machine like Win 7 x 64 and give all these resources to it... all of them (perhaps leave some carrots and ram aside for guests of esxi, of course). This vm is run to 16 GHz? It would be nice if we could create a cluster with a Setup like this and give the "total available resources' for a single virtual machine running on a esxi host.

  I doubt that this is possible because I've tried that before and it wouldn't let me create a virtual machine with this number of nuclei or ram because he said that they were not available or something... as if to suggest that I can only use the total amount of resources to AN esxi host.

  There may be another way I could give this 16 GHz machine?

  Could not assign more resources to a host to a virtual computer.

• Migrate the replication for patching ESXi host device

  Hi guys,.
  

  
  

  I'm trying to Storage vMotion/migrate vSphere replication device to different host for ESXi patches. I get the following message
  
  "This entity is managed by VR management solution. It is not recommended to edit it directly. Instead use the GPMC for the solution if you want to make changes. You want to proceed. "
  
  I use vSpere replication without the SRM device. What is the best approach to upgrade ESXi host where there is replication Appliacce. Should I just stop then move the unit, or is it possible to move it while it is running?

  
  

  Kind regards

  
  

  MQ
  
  

  Hello

  Moving the unit via the technology Vmware is perfectly fine.

  The message/warning you receive is just to warn you that this VM is a critic and you must be careful. The same message if you invoke the power out of this machine.

  Kind regards

  -Martin

• PowerCLI script for join ESXi hosts to Active Directory

  Is there a script that I can run to join the ESXi hosts Active Directory?  I have over 100 guests that I need to join AD and want to add it script instead of using the GUI VC.

  Thank you!

  Matt

  You can browse all of your servers, but you would need to make fully automated, is get the credentials somewhere.

  You have different passwords on all ESXi servers?

  In this case, you could do something like that

  $cred = get-Credential # prompt for user and password

  Get-VMHost | Set-VMHostADDomain -ADJoin:$true -Domain$domain-Credential $cred

  If you do not have the same account/password for all servers ESXi, you want probably asked for each host.

  You could possibly temporarily store in a file and read this file.

  $accounts = @ {}

  Import-Csv "C:\accounts.csv" | %{

  $accounts [$_.hostname] = $_.password

  }

  Get-VMHost | Set-VMHostADDomain -ADJoin:$true -Domain$domain-User root -Password $accounts[$_.Name]

  The CSV file contains 2 columns, called host name and the other called password.

  We read the CSV file and store the passwords in a hash table, where the host name is the key.

  We use the hash table to fetch the password of the Set-VMHostADDomain cmdlet tree.

• Sizing of prescriptions for IOPS ESXi hosts / s

  Hello!

  I was managing a few ESXi hosts in multiple data centers and we begin to look at options to consolidate the virtual machines on a shared storage to take advantage of vMotion and HA.

  Reading communities and various Springs around the ' net, I learned that a good indication of the Ops ARE / s by the ESXi can be calculated from the graph of disk performance using read and write requests, then dividing the values by periods of graph (20 years in my case).

  Now the question arises: should I add up all the values of the OPS are / s each ESXi host that will be connected (and using) the SAN or is there another way to calculate that?

  I am calculating the IOPS / s, still using the values of each graph MAX.

  Hello and welcome to the forums.

  > Now the question arises: should I add up all the values of the OPS are / s each ESXi host that will be connected (and using) the SAN or is there another way to calculate that?

  There is some great information on the site about Of Scott Drummonds .

  Good luck!

• Calculation for table element, then replace in same table

  I have a 2D, c [j, i] table, and I want to perform calculations on each element of this array, c [j, I] = c [j, I] + d * one update [i], so that the same table with the new values.  I installed the structure using a loop and got back each new c [j, I] that I'm supposed to do, but I can't seem to get these new values into the table.  I tried to use the node 'Replace table subset' but I can't seem to connect the output to the same HP. array [j, I] table.

  Any help is greatly appreciated!

  Hi cmersit,

  Why do you need that for? You have not said before...

  Well, create a local to c [j, I], move it to the for loop and connect with the release of ReplaceArraySubset. It's going to hurt needs memory and processing speed and doesn't help here. Replace [result] with a local of c [j, I] for this example. Otherwise use a shift register in the outer loop!

• How to find the RAM available on ESXi host 5.5

  I am currently a 3 VM hosting on our ESXi 5.5 and I want that the amount that using a virtual machine but I see how the use of RAM total on the host computer that is available to be allocated?

  You can see the use of the current memory as well as the capabilities of the host on the contents of the host tab in the vSphere Client.

  The amount of additional memory you can assign to a virtual machine depends on not only the available host memory, but also for example the use of comments, if VMware Tools are installed in the guest...

  ESXi uses several techniques to manage memory efficiently, which according to the guests, you can even approve memory. I suggest that you take a look at http://www.vmware.com/files/pdf/mem_mgmt_perf_vsphere5.pdf for more details.

  André

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• Should we have the additional license for managing ESXi4 host?

  We have operated vSphere 4.0 hosts for a period of time.  We will implement ESX4i host in the near future.  We would like to confirm that we can use the existing vCenter Server for the management of the ESX4i host without additional costs.

  In addition, we currently Support Gold for ESX hosts, do we need to purchase additional ESXi support?  Is this host or CPU?

  Your opinion is requested.

  Thank you

  Post edited by: TonyJK

  you have 2 licenses. (you can find them when you connect with the customer for the vcenter tab in admin, licenses)

  1 for the vcenter itself

  1 for esx/esxi hosts.

  So yes, if your license allows 12 processors and you have already used 10 cpu, you can add 1 host more (esx or esxi) with 2 cpu.

  When you delete an esx server, you can of course add another esxi host.

• How to change the sha - 1 certificate in my new esxi host

  Hi guys...

  as my lab crashed this morning (my computer has a blue screen) and of all the vm in my workstation crashed.

  When I'm the my computer upward run again and pressed 'play' to start the esxi host, I received some strange error messages.

  I decided to install a new host esxi5.1, and when I have finished configuring the esxi host, I noticed that the SHA - 1 certificate is not the same as the one I have (I have the new esxi I installed, and the older and sha-1 are different between the two hosts).

  I added the vCENTER esxi host, and now I have 2 hosts esxi 5.1 with different certificates of sha - 1?

  I can continue to work in this situation?

  I built this laboratory to study the vcp 5.0 certification. (I also installed the 5.1 vsphere to manage guests)

  It's a way to modify the certificate to the other esxi I have?

  Hope to hear from you soon,

  Best regards

  Nahum

  Israel.

  Hi Nahum,

  Each host is supposed to have a different SSL certificate

  If you are looking to implement of the CA signed CERT for only ESXi hosts, this should help

  VMware KB: Configuration CA signed certificates for guests of ESXi 5.x

  or

  http://www.derekseaman.com/2013/02/VMware-vCenter-51-installation-part-15.html

  Blog of Derek has also to the replacement of all certificates of vSphere if you want to go this route

  Concerning

  one

• Do I need an IP NIC of each Esxi host address?  VMs needs access to the storage network?

  Hi all

  The issue go, I have a host machine with 3 nic cards - > 1 for production network, 1 for the management network and 1 for the network backup.

  The guest PC VM inside will be connected to the 3 network,

  But for the host himself, will be used for management and backup only.

  T1) is the bears from production on the need for level ESXI host having an IP address as well?

  =================================================================

  Right of Q2) now my host use internal storage. If I'm to migrate to a SAN storage, I have 1 more network for storage.

  I understand that the configuration of virtual machines and their data are assigned and stored in the data store that is made visible at the level of the host.

  They must for the virtual machines access the data store, join the storage network as well? or they are access to the storage through the host

  ================================================================

  Kind regards

  Noob

  T1) is the bears from production on the need for level ESXI host having an IP address as well?

  A NIC itself does not require an IP address. Which IP addresses are required for VMkernel port groups (for example, networking, vMotion, storage access,...) as well as virtual machines.

  Right of Q2) now my host use internal storage. If I'm to migrate to a SAN storage...

  No, a virtual machine (i.e. the guest operating system) does not require access to the system of storage, only the ESXi host.

  André

• Adding more than one host ESX and the upgrade at the same time.  What is the order of preference of the operations here?

  We are budgeting for more licenses and hardware for 2014 and want to do immediately in January.  I am trying to decide what is the best order of operations for adding two vmware hosts additional to our current installation of vsphere and also upgrade our vsphere / esx 4.1 u3 for the latest and best.

  We have 3 Dell PowerEdge R710 running ESX 4.1 U3.  In this vmware cluster, there is a vcenter server 4.1 U3 virtual machine handle this.  The three servers are about 90% memory used so we add 2 additional servers.  Probably the Dell PowerEdge r.620 since we get up 2 in the space of a 710.  Storage is on a san EMC NX4 NFS which will become too but not yet, let's just deal with the vmware part.

  When adding additional r.620 2, should I install ESX 4.1 on them and join them to the existing cluster and THEN pass vcenter and each one esx?  I ask precisely because 90% of use on 3 current servers, I need 2 other servers to support the update operations take place.  They would be able to repel vmotioned vm while each host receives an upgrade at the same time.

  So which is the best way to go about adding of the hosts and the upgrade?  Would I add as 4.1, then they would be available as targets vmotion and so I have room to start the hosts one upgrade at a time?

  If I update vcenter to the latest version, it is comparable backwards and can manage the 4.1 hosts, but also hosts 5.x?  I guess version 5.5 is the last one I would get from VMWare?  It is right of ESXi, then, how is this ESX ESXi 5.5 4.1 upgrade?  How much storage space do I need for ESXi 5.5, as I'm dechatoiement out of these r.620 Dell and need to know what hard drive to put in.

  The steps that you must follow

  -Updated vCenter Server

  -Upgrade of the ESX hosts (because we do a updating of the material we will install 5.5 on our new guests and add them to the cluster and then dismantle our existing)

  -Upgrade VMWare tools

  -Update data warehouses

  ESXi 5.5 has these storage requirements:

  • Installing ESXi 5.5 requires a boot device is at least 1 GB in size. When booting from a local disk or SAN/LUN iSCSI, a 5.2 GB drive is necessary to allow for the creation of the VMFS volume and a scratch 4 GB partition on the boot device. If a smaller drive or logical unit number is used, the installation program attempts to allocate a region scratching on a separate local disk. If a local drive is not found, the scratch partition (/ scratch) is located on the disk virtual ESXi host, linked to the/tmp/scratch. You can reconfigure /scratch to use another drive or logical unit number. For best performance and memory optimization, VMware recommends that you leave no /scratch on the ESXi host ramdisk.
  • To reconfigure / scratch, see Configure the Scratch Partition of vSphere Client vSphere Installation and Installation Guide.
  • Because of the sensitivity of the I/O devices, USB and SD, the installation program does not create a partition scratch on these devices. Therefore, there is no tangible benefits to the use of the great features of USB/SD that ESXi uses only the first 1 GB. When installing on USB or SD, tent Setup devices to allocate a region scratching on a local disk or the data store. If no disk is local or data store, /scratch is placed on the virtual disk. You must reconfigure /scratch to use a persistent data store after the installation.
  • In Auto deploy facilities, Setup attempts to allocate a region scratching on a local disk or the data store. If no local disk or data store is found /scratch is placed on the virtual disk. You must reconfigure /scratch to use a persistent data store after the installation.
  • For environments that start from a San or use Auto Deploy, it is not necessary to assign a separate logical unit number for each ESXi host. You can co-locate areas scrape for several hosts ESXi on a single LUN. The number of hosts assigned to a single LUN must balance the size of the LUN and behavior I/O virtual machines.