Share of CPU between ESXi hosts in a cluster?

Similar Questions

• As part of the SAR cert is to have a NW separated between ESXi host required for VMotion or is it OK to use IP for VMotion management, in the execution of Certification tests.

  As part of the SAR cert is "have a NW/dedicated separate between hosts ESXi (on which we GOS) mandatory for VMotion or is - OK to use IP for VMotion management in the execution of Certification tests.»

  Note that the verification passed Test when you use management IP for Vmotion and without a dedicated connection to NW between ESXi hosts.

  Separate dedicated network interface cards preferred. No problem with the test after this change case.

• Share data warehouses between clustered hosts

  Hello, we had initially a cluster of ESX consisting of two guests who had shared access to different VMFS LUNS on an iSCSI SAN.

  Recently we bought an additional server, and additional storage and we have some problems to get the extra VMFS LUNs to be recognized by all hosts. The additional LUN is recognized by all hosts after a new analysis to Configuration-> storage adapters, but it seems that data warehouses can be added only for the storage of an individual host and not shared by the cluster?

  Adding the extra VMFS LUNS to a host works very well but they are not immediately recognized by the other guests and whenever you try to add data to them warehouses they insists on formatting the LUN and treating it essentially as a data store different.

  Since there is no problem sharing data between hosts warehouses in the original configuration, I wonder what setting it is necessary to enable sharing between all hosts in a cluster of data store? Thanks in advance!

  Probably, you have LUNS in different ways for each ESX Server (or the new ESX). If any information logical unit number (Lun ID, wwwn, etc.) is not the same for all ESX host tend to view this as a snapshot LUN.

  If you can't find what's going on, you can try a workaround (not too recommended but should work in your environment): go to the ESX configuration tab, click Advanced settings, and look for LVM. DisallowSnapshotLun option under LVM. Change it to 0, click OK and perform a new analysis. Repeat this for all of your guests.

  Please let us know if it works.

  Marcelo Soares

  VMWare Certified Professional 310/410

  Technical Support Engineer

  Chief Executive Officer of the Linux server

• Transfer rate between ESXi host using "Veem backup and FastSCP".

  Hi all

  I have two ESXi host connected with Eth - 1 G ports on an HP switch

  now I'm trying to transfer data between two hosts using "Veem backup and FastSCP" tool

  a 1 MB/s transfer rate is normal? you know a way to improve the performance of the network?

  Note that no collision or inadequacy not discovered on the way to the switch

  Thanks in advance

  Hello

  This work is a line perhaps? If you use VMFS as target, you must double check the block size, if it is the default 1 MB, the maximum size of a vmdk disk is 256 GB.

  The value you got 274878668800 bytes, divided three times by 1024, gives you exactly 256.0007095336914 GB. This is probably the problem.

  PS: I saw your error screencap you come to Italy, visit us on the pages of Italian user :-) group

  Kind regards

  Luca.

  --
  Luca Dell'Oca
  http://www.vuemuer.it
  [reward points for a useful answer is a way of saying thanks]

• Storage vMotion-Direct between ESXi hosts

  Hi all

  It is my first time on the boards, I hope it's the right way to go on this subject.

  I have problems with Storage vMotion, it's not a set up us would use normally, rather than by necessity with the current scenario.

  We have a desktop which has 2 x 5.1 ESXi hosts. They do not have a budget for SAN with the installation of HBA, and it is only a single requirement. I have to migrate virtual machines from one to the other, but with no external storage. I wait with Storage vMotion directly from a local data store to another.

  I activated the software iSCSI on both ESXi hosts

  Created a vSwitch separated with a VMkernal on two physical hosts

  The two VMkernals are on a separate subnet * 172.16.1 and production vSwitch is 192.168.5. *.

  The NIC allocated for the 172.16.1 network. * is both connected to the same physical switch.

  I ping the VMkernal and the vmkping the VMkernal

  Scan for storage again and nothing shows up.

  I used software iSCSI before, for a long time so I'm probably rusty. Dynamic discovery is normally indicated in the SAN to pick up storage, and finds it just local storage on each host itself.

  In this scenario, I told the IP address of the ESX2 VMkernal on 172.16.1 ESX1. * since I have no external storage. I think it is, I'm wrong, but I don't know what else to do to recover local data warehouses.

  Any ideas to try would be very appreciated.

  Thank you

  Sorted by using 5.1 feature Shared-Nothing vMotion

• Client VM copies between ESXi hosts

  Hello

  My apologies if this has been posted before, but I can't find the answer I'm looking for.

  I transferred the guest of a virtual computer files using download the data to an ESXi host to another store. Is it possible to open the comments on the destination host ESXi?

  If this is not the right way, what is?

  Thank you

  If you have already copied the files then you can browse the data store in the new host, right-click on the VMX file and select Add to the inventory.  When you start the virtual machine, you will be asked if it is a copy, or if the virtual machine has been moved (see the summary for the VM page if you do not see the issue).  If you do not use the same groups of port VM on the host of the 2nd, then you need to change the VM to fix this as well.

  The way you moved it is fine.  You can also use VMware Converter for tasks like this.

  Dave

  VMware communities user moderator

  New book in town - Start Guide quick vSphere -http://www.yellow-bricks.com/2009/08/12/new-book-in-town-vsphere-quick-start-guide/.

  You have a system or a PCI with VMDirectPath?  Submit your specifications to the unofficial VMDirectPath HCL - http://www.vm-help.com/forum/viewforum.php?f=21.

• SCP SSH does not not between ESXi hosts

  Hello

  I have two servers ESXi 5, both I can access via ssh (putty) but I have if try invites one of the other ESXi ESXi5 I can´t access, my ping works, I try to use SCP between two but don t work, the error message:

  ~ # ssh 192.168.0.251
  SSH: connect to host 192.168.0.251 port 22: connection timed out
  ~ # scp /tmp/testescp.txt [email protected]: / tmp

  SSH: connect to host 192.168.0.251 port 22: connection timed out

  interruption of the connection

  PING 192.168.0.251 (192.168.0.251): 56 data bytes

  64 bytes of 192.168.0.251: icmp_seq = 0 ttl = 64 time = 0,157 ms

  64 bytes of 192.168.0.251: icmp_seq = 1 ttl = 64 time = 0,214 ms

  64 bytes of 192.168.0.251: icmp_seq = 2 ttl = 64 time = 0,187 ms

  -192.168.0.251 - ping statistics

  3 packets transmitted, 3 packets received, 0% packet loss

  round-trip min/avg/max = 0.157/0.186/0.214 ms

  SSH is enabled.

  I can connect using PuTTY or Winscp from a windows machine.

  Is there anyone sugestion?

  Copied from this thread;

  http://communities.VMware.com/message/2067067#2067067

  You must open the ssh ports in the firewall of ESXi.

  In vSphere Client check the host-> Configuration-> Security Profile-> Firewall-> properties

  and select "SSH Client" If you need to scp connections outgoing resp. "SSH server" If you want to enable incoming connections to PCs.

• Setting up iSCSI between ESXi host and MD3000i, firewall Option missing

  I try to configure the iSCSI access and the MD3000i manual head to the firewall option in VI Client.  However, when I go to Configuration - & gt; Profile of security - & gt;  the option firewall appears briefly and disappears?

  I'm having problems to recognize the iSCSI host table and I think that this may be due to the firewall.

  Hello

  I believe that in the latest versions of ESX (3.5u3 for sure), 3260/tcp port (you need for iSCSI) is automatically opened when you turn on the iSCSI (iSCSI software that is).

  You should choose abe to connect using the VI client, click the host in question and select the 'configuration' tab and then the item "security profile. Who should be open all ports.

  Remember that when you use iSCSI, you must as well a VMkernel port and connection of console in your LAN IP storage space. If two IPs per ESX host. The Console launches the iSCSI link, the VMkernel carries the iSCSI connection data.

  EDIT: Sorry, only now I noticed that you are using ESXi. In this case, you won't need a port Console service (because ESXi has one)

  Visit my blog at http://erikzandboer.wordpress.com

• Remove ESXi hosts to vCenter Cluster host even

  Hi all. Depending on the subject, I would like to remove the host from an old Cluster vCenter which is no longer accessible because the database is damaged. Unfortunately I can not not to restore it because my predecessor scheduled backups. How can I do? Thank you all in advance for your answer.

  All the information you have provided, I suppose there could be something in the ADAM database, which must be deleted / reset.

  The assignment of license keys is stored in the ADAM database (rather than in the vCenter Server database) and with the new installation of server vCenter on the same host (old) this may not have been reset. Please take a look at http://kb.vmware.com/kb/1015268 to see if this KB will help resolve the issue.

  André

• VM automatically migrated back to ESXi host

  Hello

  I recently installed and configured a Cluster DRS on vSphere 5 on the customer site.

  In the cluster, we added 5 ESXi host. Four HP DL580 G7 with Xeon X 7560 processor and a HP DL580 G5 X 7460 Xeon processor.

  Apparently the X74xx and the X75xx processors are not compatible for vMotion and DRS is impossible between ESXi hosts.

  I tried to vMotion VM of a loaded ESXi, DL580 G7 host, for DL580 G5 the only customer, but the wizard gave me
  a compatibility error saying that;

  "CPU host is compatible with the requirements of the virtual machine to CPUID level 0 x 1 'ecx' register."

  I tired to use EVC on cluster ma to make compatible CPU but no luck! could not execute predefined EVC profiles!

  I just turned off the virtual machine, so I'd be cold - migrate to the ESXi host.

  Could do when it was off, but when I turned it on it automatically ran on the previous ESXi Host which is held before the migration.

  For me, it was strange! because firstly he moved successfully to the new host of ESXi, but came back on the other after power.

  I have two questions about the scenario above;

  1. why the VM turned their backs on the other host ESXi?

  2. How can I solve the problem of cpu compatibility?

  Thank you,

  NetRock

  ' VCA Can' active br because the cluster contains hosts that lack VCA-compatible equipment.

  Please check the BIOS of the host settings and do 'VT - x' and the 'no. Execute Disable"are both set to"enabled ".

  See http://kb.vmware.com/kb/1003212 for more details

  André

• CentOS 5.5 100% CPU use 50% of the CPU of the host - very simple config

  Hello.

  On an upgrade on ESXi 4.0u1 - & gt; ESXi 4.1, I got a CentOS 5.5 32bits with VMware tools and local storage SCSI RAID5.

  Host: IBM x 346 Intel Xeon 3, 4 Mhz single core, hyper-threading, dual-CPU 10 GB of RAM.

  VM: CentOS 5.5 32bits, kernel 2.6.18 - 194.11.1.el5 #1 SMP

  VM resources: 4 vCPU, 4096 MB RAM, affinity and default limits

  I've got high utilization of the processor on this light apache + mysql box. In order to optimize the system, I came to this observation:

  -When my CentOS VM uses 100% cpu, the ESXi host uses only 50%

  My question is: why is it impossible to use more cpu, as this the only VM on the host?

  Clues or tips?

  TIA

  First of all, you have an absolutely incorrect configuration.

  You see 2 CPU * HT * 1 core = 4 logical processors in ESXi. But actually it's only 2 physical cores, and you should not give any VM on the ESXi exceeding 2 vCPU, because it isn't real processors and VM is not aware of it.

  If you have 2 virtual machines with 2 vCPUs each then Yes, HT will give performance gain, but not in this case.

  ---

  MCSA, MCTS Hyper-V, VCP 3/4, VMware vExpert

  http://blog.vadmin.ru

• It is possible to create an interface between the host and the VM

  It is possible to create a virtual switch between esxi host and a virtual machine.  I know that technically I can get to the esxi host for the virtual machine in the virtual machine network and back into the host esxi during the port of the kernel.  But we wonder if it is possible to have a private network setup so that the VM guest can talk directly to the shell host secure without leaving the network?

  Yes you can - create a virtual with a vmkernel port and a port of the VM of the group as long as they are on the same segment that traffic will not leave the ESX host

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• Add ESXi hosts to vSphere Client

  We have 7 servers ESX and ESXi 8 servers.

  Six of the ESX servers are sitting in a cluster and the last of them is located in its own cluster.

  It's nice to manage all 7 ESX servers in a vSphere Client.

  8 ESXi servers, I've been managing each with their own vSphere Client connection.

  Is it possible to create a cluster of ESXi in vSphere and add each of the ESXi hosts to this cluster of '? Or even a "cluster"?

  I tried and I get the following error.

  "License not available to perform the operation. ESXi 4 for Host 192.168.1.10 Server license does not include the agent for ESX Server vCenter. Upgrade the license. »

  We don't have a budget to upgrade the more liceneses. I don't mean to make HA or DRS on the ESXi hosts. I'd just like to see servers running on them for purposes of inventory without having to have 9 vSphere customers open.

  We have a license entirely vCenter Server so I think we should be able to add these ESXi servers.

  Any help would be appreciated.

  You must have at least vSphere Standard license for each host you wish to manage with vCenter. Free ESXi cannot be connected to vCenter.

  ---

  MCSA, MCTS Hyper-V, VCP 3/4, VMware vExpert

  http://blog.vadmin.ru

• Can no longer add ESXi host to vCenter but OK VI Client connects

  I removed an ESXi host in a cluster on vCenter. Now when I try to add the host (whether for the cluster or stand-alone) the add hosts Wizard appears and has the correct information, but when I cliquerai on closing, that nothing happens for a few minutes, then I get the error:

  Unable to reach the specified host... Maybe it's because this host is not available on the network, there is a problem with the network configuration or management on the host services do not react.

  However, I can connect to the host directly with the VI client and which works very well, even though the events tab displays "VFAT: 2583: Possible FAT Corruption." My copy of ESXi is on a flashdrive in a HP Blade.

  I tried to reboot the host, but it makes no difference. Several of the responses to other users of similar problems is recommended to perform "service vmware-vpxa restart" on the host, but this does not apply to ESXi. I also tried to restart the vCenter, but that makes no difference either.

  Any ideas?

  Thank you

  Will be

  Download iso hpvm-recovery on HP site and reinstall ESXi on flash drive.

  UPD: Yes, as Neil said, check your key USB HP if you bought ESXi Embedded. If you have the Green key aluminum, require the replacement of HP. And then, you definitely have to download iso that I mentioned above

  ---

  VMware vExpert 2009

  http://blog.vadmin.ru

• Not be able to address the multiple host in a cluster

  Recently, we have improved our vCenter to 5.5 from 5.1.

  After graduation we are not able to address the multiple esxi host in a cluster.

  We also tried several remediation option.

  OK, then you can move guests with limitation of do this one by one, right? If so, this is an expected behavior, since there is a limit which allow a maximum of a host by cluster upgrade, see:

  

  https://www.VMware.com/PDF/vsphere5/R55/vSphere-55-configuration-maximums.PDF