Lost network redundancy!

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• Create alarm "Network redundancy lost" by the script?

  Hello:

  I'm trying to write a script that will create the alarm in order to monitor the redundancy of the lost network (I know manually there) on the host.

  I know how to create alarm for additional exhibit the ' basic' event (LucD - thank you for your help) and I know that I have for alarm 'Lost network redundancy' to use 'vprob.net.redundancy.lost' instead of 'EnteringMaintenanceModeEvent' (as in my example); but I still struggle to combine...

  Can someone help me please?

  Thank you

  qwert

  I don't have a particular script fantasy with the settings and all the rest, but I can show you the steps to filter alarms by name and remove the desired one.

  alarm #retrieve Manager

  $alarmManager = get-view-Id "AlarmManager-AlarmManager.

  #Get the entity that contains the alarm that you want to remove. I'll do it for a virtual machine

  $entityView = get-Vm-name MyVm | Get-View

  #get all MoRefs alarm

  $alarmMoRefList = $alarmManager.GetAlarm($entityView.MoRef)

  #Retrieve tha alarm views from the MoRefs

  $alarmViewList = $alarmMoRefList | foreach (Get-view $_)

  #Now filter the name alrams

  $alarmToDelete = $alarmViewList | where {$_.Info.Name - eq "AlarmToDelete"}

  #Finally remove alarms

  $alarmToDelete.RemoveAlarm)

  It shouldn't be hard to put this in a script or function reussable. If you have problems with this, I'll be happy to help you again!

• Troubleshooting ESX 4.1 "lost network connectivity.

  Hi people,

  I made a change in a vSS in the detection of failover network status 'link' to 'Beacon probing.

  Now a have an active alarm with Red State: "Lost network connectivity", but the message in the events of the host does not show that active vmnic of my rising has the problem.

  Sound it no way of knowing which physical interface have this configuration problem?

  Thank you

  ------

  Cabral Wellington

  In addition, if you wish to arrive linkstate changes in your host you can ssh to the desired host (or via the console of the ILO, etc.) and simply grep for 'link' (provides most of output) or "linkstate" (provides a minimal output, only showing the ascent/descent of the events).

  Syntax of the command (depending on the version of ESXi host that you may need to tweak it a bit)

  ESXi 4.x

  cat /var/log/messages | grep -i link
  

  -or-

  ESXi 5.x

  cat /var/log/vmkernel.log | grep -i link
  

  Here are some example output captured everything by making the maintenance of networks:

  ~ # tail -fv /var/log/messages | grep -i link
  Jul 26 16:34:43 shell[372172]: tail -fv /var/log/messages | grep -i link
  Jul 26 16:35:52 vmkernel: 1:00:26:20.001 cpu13:4462)<3>qlge 0000:08:00.1: ql_link_down: vmnic5: Link Down.
  Jul 26 16:35:52 vobd: Jul 26 16:35:52.540: 87980025771us: [vob.net.vmnic.linkstate.down] vmnic vmnic5 linkstate down.
  Jul 26 16:35:52 vmkernel: 1:00:26:20.057 cpu15:4947)sfqosq: del pc member - q_ulink is already NULL, return
  Jul 26 16:35:52 vmkernel: 1:00:26:20.057 cpu15:4947)sfqosq: del pc member - q_ulink is already NULL, return
  Jul 26 16:35:53 vobd: Jul 26 16:35:53.542: 87981034666us: [esx.problem.net.vmnic.linkstate.down] Physical NIC vmnic5 linkstate is down.
  Jul 26 16:38:14 vmkernel: 1:00:28:41.743 cpu8:4455)<3>qlge 0000:08:00.1: ql_link_up: vmnic5: Link Up.
  Jul 26 16:38:14 vobd: Jul 26 16:38:14.432: 88121917666us: [vob.net.vmnic.linkstate.up] vmnic vmnic5 linkstate up.
  Jul 26 16:38:15 vobd: Jul 26 16:38:15.434: 88122926678us: [esx.clear.net.vmnic.linkstate.up] Physical NIC vmnic5 linkstate is up.
  Jul 26 16:39:57 vmkernel: 1:00:30:25.243 cpu0:4947)sfqosq: del pc member - q_ulink is already NULL, return
  Jul 26 16:39:58 vmkernel: 1:00:30:25.541 cpu2:4443)<3>qlge 0000:11:00.1: ql_link_down: vmnic7: Link Down.
  Jul 26 16:39:58 vobd: Jul 26 16:39:58.224: 88225709691us: [vob.net.vmnic.linkstate.down] vmnic vmnic7 linkstate down.
  Jul 26 16:39:59 vobd: Jul 26 16:39:59.226: 88226718868us: [esx.problem.net.vmnic.linkstate.down] Physical NIC vmnic7 linkstate is down.
  Jul 26 16:40:58 vmkernel: 1:00:31:26.091 cpu13:4459)<3>qlge 0000:11:00.1: ql_link_up: vmnic7: Link Up.
  Jul 26 16:40:58 vobd: Jul 26 16:40:58.890: 88286375827us: [vob.net.vmnic.linkstate.up] vmnic vmnic7 linkstate up.
  Jul 26 16:40:59 vobd: Jul 26 16:40:59.892: 88287384684us: [esx.clear.net.vmnic.linkstate.up] Physical NIC vmnic7 linkstate is up.
  

  Note: The example above uses the tail command to follow (-f) mode to observe the desired forensics in real-time (i.e. during your change).  Otherwise, to review historical linkstate changes that have already occurred, and then use the command cat first noted at the top of the pole.

• ESXi 4.1.0 lost network connectivity?

  For the last 5 days 3 out of 4 of our server show an alarm of "lost network connectivity.  The weird thing is that we have a connectivity total all servers and all virtual servers.  All the lights flash on each swith, port, nic, and everything you can think of.   All the settings on vSwithes are the same with no red x I ran the command esxcfg-NICS-1 and # ethtool - s vmnicX without any problem.  Any ideas?

  There can be question of alarm so... can reset you the alarm and then check.

• "This host currently has no management network redundancy", but there are?

  While in vcenter, the summary for a host tab displays this message:

  "This host currently has no management network redundancy.

  I have attached photos of the host > Configuration > network and host > Configuration > network cards pages. It seems to me that the management network is behind 2 NIC's team together.

  What I am doing wrong? How can I fix?

  Thank you

  More than an idea. Righ click hosts and run "reconfigure for HA.

  André

• That errro again... host currently has no error management network redundancy

  I don't get the "host currently has no error management network redundancy.

  I think that I have the correct configuration, but not sure since our network guys gave me the IP addresses to use for HA.

  Here is the config for HA

  ESX Server 6.

  Service console is on 0 to 172.16.1.106 in 255.255.0.0 vSwitch

  The second redundancy console) is on vSwitch 4 to 77.77.77.10 in 255.255.255.0.

  ESX Server 5.

  Service console is on vSwitch 4 to 172.16.1.105 in 255.255.0.0

  The second redundancy console) is on vSwitch 4 to 77.77.77.9 in 255.255.255.0.

  I've reconfigured HA on ESX Server 6 and ESX Server 5 and even restarted them but still not the mistake of redundancy...

  Something is not properly configured?

  stanj wrote:

  If the collection of network adapters offer the same functions of redundancy, so why so many articles point to using a second console HA redundancy?

  It's simply the options given. There are several ways to provide a redundancy of HA heartbeat.

  The article also indicates HA advanced features such as das.isolationaddress2 and das.failuredetectiontime will be charged when you set up a secondary service console. It is an approach more effective, but still more complicated?

  These advanced options are not always available and also provide another way to configure HA redunancy.

  Here's something interesting to look at as well

  http://www.yellow-bricks.com/VMware-high-availability-deepdiv/

  For me, I always learned the KISS method (Keep it Simple stupid).  Add a second NETWORK card is the easiest way to keep your redundant environment, in my opinion

• 1. can't connect to VMWare Server when no network 2. Comments or lost when lost network connections

  Hello

  I have two guests of computer virtual on my laptop.

  1. I can't connect to VMWare Server when there is no network.

  This means that I can not launch the guests when I'm at home (with no network) or on the road.

  2. the connections are lost when lost network.

  As a corollary to article 1 above, if I am connected to the work, and that the network is lost, my connections are lost for the guests.

  How to configure VMWare so that this doesn't happen, please?  (I inherited the setup of a colleague who has left, so I don't know how it has been implemented).

  'About' gives:

  VMware Infrastructure Web Access

  Version 2.0.0

  Generation 116487

  VMware Server

  Version 2.0.0

  Build 116503

  T.I.A.

  ALF

  Hello

  If you want to connect, try: https://127.0.0.1: 8333 or https://localhost:8333.

  BTW. You can upgrade your VMware Server to the latest version, as I see you are using the beta version.

  J.

  You can read the document undermine , Impossible to open the VMWare - Server and Remote Console-

  If you have found this device or any other answer useful please consider the use of buttons useful or Correct to award points.

  Post edited by: janlib

• alert the uplink network redundancy lost

  VCenter has an uplink lost redundancy alert network, which takes about 5 days. The alert cannot be recognized or green value, because the option is grayed out. VCenter client does not show the cards down. A few questions

  -How can the alert being erased?

  -Where should I look for the question? I checked the network adapters on the host's configuration in vcenter client. Where would be ESXI connect alerts for this problem?

  It's vCenter.  Alarms are sometimes "buggy".

• Lost network access after installing SP3 on XP Home Edition

  I have several computers running a combination of XP Pro, XP Home, Vista and Windows 7 on a network home. I just updated the XP Home Edition SP3 from SP2 (XP Pro running SP3). After that, I lost the ability to access to the files on the XP Home Edition on the other computers. I have granted privileges of sharing and can see the computer in my workgroup. But when I try to access the share, I get the error message \\Name "is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. Logon failure: the user has not granted the type of logon required on this computer. »

  I am the administrator. How to grant the necessary rights?

  Thanks a lot for your help.

  Unshare and re - share the folder on the PC SharedDocs.  Then, try to access it from the laptop.

  If this does not help, what version of XP each computer there?  Network installation share may differ between XP Home and XP Professional.

  If the PC is XP Professional, go to control panel > Folder Options > view and scroll to the end of the list of advanced settings.  If "Use sharing simple files (recommended)" is checked or unchecked?

• Lost network Code

  I have a WRT54G version 6.  I'm trying to get a new computer connected to the network and I lost my network code.  Everything I read says I need to get the original computer I used to set up the network, open the network control application and then go to 192.168.1.1.  I did this original computer more and can't find any 'network control app' of any kind.

  How can I get connected?

  Thanks in advance for your help.

  Rick

  Since you are finally in the routers administration pages I bet that you have not clicked on each tab to see what information is there.

  Try here for your wireless settings...

• iSCSI multipath vs network redundancy?

  If I have a redundant network, say a VMkernel port on a vSwitch with two VMnic, maybe Port ID load balancing and the two vmnic goes to two different physical switches and there are redundant links on all switches between the ESXi host and iSCSI SAN and it is Rapid Spanning Tree set up, and there is a kind of Etherchannel / Link aggregation on the iSCSI Server , but only a single IP address...

  Is there an advantage to configuring iSCSI multipath and let the VMkernel manage failover, rather than let the network itself, make sure that there is a path between the host and the target?

  Primary storage provider use several IP for storage NIC (in some cases two different networks).

  With the VMware multichannel modules, you are limited to only one path (at that moment) to a LUN, but the seller might have is multichannel modules, or of course, you can use LUN more have used more of paths.

  Bandwidth could be interesting with several virtual machines... or I/O loads.

  André

• Issue of network redundancy

  Hi guys,.

  Just a quick question/precision.

  On the ESX hosts in our environment, all hosts have 8 physical network interface cards.

  The way in which we have our network configuration is that the IP subnet that the Service Console runs on (10.9.8.X) is also our internal network IP subnet.

  The way I have my setup of the guests is with two physical network adapters on this network goes into the same virtual switch.  For the Service Console, the network adapters are configured as active / standby.  For the internal network, they are configured as active/active.

  What is the correct/preferred way to set this up not only for the Service Console redundancy, but also to have NIC teaming to achieve a greater bandwidth on our network inside?  Or should I try to use some of the other empty NIC ports to finish to remove the Service Console of this IP subnet?

  James

  It is good to have 8 ports.

  A good way to implement an ESX Server is as follows.

  3 ports for network of VM and the Service Console, put them on the same vSwitch and configure the vlan trunking.

  2 port for vMotion (preferabbly on a separate vlan or a network)

  3 ports for IP storage, iSCSI/NFS

  I would use teaming on each vSwitch (static LACP)

  I do not know what type of storage going you...  The above is a good and redundant installation.

  Larry B.

• How to disable the alarm management of network redundancy

  Hello

  Could you please tell me how to disable the alarm of redundancy of management network.

  concerning

  Surya

  Add the following parameter and the value true in AP advanced options:

  das.ignoreRedundantNetWarning

  Once done do a reconfigure for HA on the ESX servers and it will not display the warning.

  One thing to note is that it is not advisable to set this parameter.  To correctly resolve the issue so that the warning is not displayed, add a second card NETWORK in the vSwitch console or a second management network.

  See you soon,.

  / Jonathan

• How to create a network redundant ISP failover using 2 Airport Extreme

  Hello friends,

  I have 2 different lines of rented ISP related to my Airport Extreme 2. Was curious to know if these 2 AEs can be interconnected somehow to create a network of ISP failover. Users on AE 1 traffic would be transparent reassigned to the AE 2 and vice versa, if corresponding ISP fails. When the access provider is in place, they will return to their AE in elementary school.

  Thank you.

  Not without a smart dual wan router. That is to say done good load sharing.

  Extreme is about as simple a router you can find... He has the absolute minimum of functionality.

  Users on AE 1 traffic would be reassigned transparent to the AE 2 and vice versa

  You can do this by using some manual intervention... a simple change of entry door is usually sufficient.

• DC700 small form factor: lost network card driver

  Hello world

  First post so please be gentle with me!

  I know the below door on an old PC and an old OS, but I'm happy with both and they meet my needs.

  I had a recent power cut at home while my PC is turned on. Everything was going well after the restart except the network drivers, who have apparently disappeared?

  Record the serial number of the PC to the HP Web site, I learned that the installed network chip is an Intel 62566 DM-2. I therefore downloaded the driver appropriate to HP (SP51782) package and tried to update the driver without result. I also tried to download the drivers from Intel owners with the same result! That's always what I see in Device Manager:

  

  Any tips/advice/guidance would be accepted with gratitude.

  Thank you...

  Peter

  You are the very welcome, Peter.

  It's really slow.

  Yes, you are probably better off getting a gigabit PCI NIC, but make sure it's a down a profile that comes with the extra-thin bracket.

  I would like to avoid a PCI express x 1 NIC

  I've read too many messages from people get these PC does not recognize the card, and the PC will not boot.

  Can't tell for the life of me why this happens, but that's what I read on these PC dc7xxx.