Tolerance of failure with multiple NICs

Similar Questions

• Increase throughput for iSCSI with multiple NICs

  I'm implementing a new host ESXi 6 using a Synology NAS as an iSCSI target. I have 4 nic of the Synology stuck in 1 connection, so it has 4 GB of throughput. So far, over my hosting provider, I have two nic I dedicated to iSCSI traffic. So far, I put vSwitch under 1 two NICs and I was playing with patterns. I put two 1 vmkernel network cards and set as active adapters. However when I watch the iSCSI network traffic I only see traffic on a network adapter. This of course caps my speed to 1 GB. I would like to be able to bind several network cards so I can get a flow more. I tried changing the selection of the path for the warehouses of data in Round Robin are therefore at least two active nic. But which always leaves me with two individual connections of 1 GB instead of 2 GB connection. Is it possible for me to get there or I'm better off just having several 1 GB NIC load balanced?

  I'm not familiar with the Synology. However, what is generally - in the case where the storage system supports - is to set up several uplinks on the side of the target of storage/as well as on the initiator/ESXi side, each with their own IP address. Once configured, you can use multiple paths to access the target. According to the capabilities of the target, Round-Robin (if supported) will send traffic through all the links, i.e. using the bandwidth of all the links.

  André

• VDI connect to the virtual computer with multiple NICs, use wrong address

  Strange question, we are the double of a VM to autoguiding.  Each NIC is on a different network, and it works very well.  Except when you sign out of the VM with a zero client.  If both network adapters is enabled through the vsphere, zero client the client tries to connect to the virtual machine using a wrong address.  He will try to use the address 172.16.x.x, but the life of the virtual machine and is stored on 192.168.x.x network.  Is there a way to make the NETWORK on 192.168.x.x address network card that zero the client tries to connect?

  Using the network-> Advanced-> advanced-> tab connections maps and links, move the 192.168.x.x network adapter to the top of the list of connections.

  Linjo

• SearchIndex.FindByIP () for VM with multiple NICs for

  If a virtual machine has multiple vNIC and each vNic has its own IP address, the SearchIndex.FindByIp () can support

  VM search based on any of the IP address of the interface of the virtual machine, or the API only supports

  VM look after the IP corresponding host name of the virtual machine?

  Hypothesis: VMware Tools is running on the virtual machine (which is not the case in my lab environment, where)

  I can't test out easily).

  Thank you.

  Hello - I have tested in my lab - SearchIndex.FindByIP () is able to find another IP VM - not just a primary address-based

  The virtual machine tools has been installed on the guest operating system

  HTH

• Best use of multiple NICS (collaborate with VIRTUAL networks or physcially separated)

  Set up my new production environment vSphere and trying to figure out the best way to set up the network.  I have pictures to illustrate, but the basic question is:

  1. use all NICS in a pool and VLANS to separate traffic - or -

  2 devote some physical nic to only certain things (VMotion, FT etc..)

  We use Dell R710 2 servers with 6 NIC of each.

  Our SAN is connected via zFCP iSCSI, see you in the group is therefore only for failover of emergency if environmental FC had to leave for some reason any.

  Please let me know which design you think would be the best.

  Thank you

  Michael

  Hello

  Everyone says to separate the service of the VMnetwork console.  If I can separate the traffic of service with one console vlan why separate physically?  If something happens to the service console connection disconnects but my machines always communicate then I would have trouble.  Why not make sure that if the network paths are for machines that I can control the server VM?

  Your VMNetwork is one of network environments more hostile within the vNetwork as its arbitrariness and a point of attack if someone breaks into a virtual machine. If you have the virtualization management network attached to your VMNetwork is on, there is a VERY good chance that the pirate VM now will be used to launch an attack against the network of virtualization management. Given the current set of attacks there is a VERY good chance of success. For security reasons, you want your management network virtualization to be separated and protected by a firewall of any other physical and virtual network. Ideally on its own switches with output physical switch VLAN in use. However if you use VLAN physical switch then you put your trust in these spending patterns, so you want to increase your monitoring of these switches.

  Since the original post, I combined the iSCSI traffic because it is a failover of emergency only where my zFCP hardware has a problem.  The iSCSI link rarely go to never get used and I didn't spend 2 physical network cards to something that would almost never be used.

  You want to spend 2 links for iSCSI, if you still do not have a failover, you can the bandwidth and redundancy. Consider all the links of storage redundancy.

  Let me know what you think on the service console.

  When you use VLANS in the vNetwork you are automatically protected against most known layer 2 attacks, but in the pNetwork you are confident that your switch configurations you will protect. These configurations have been known to change and not necessarily for the better. Some say, it must break so for that to happen, but 1 problem of configuration and your SC is now attacked. Remember, once the virtualization management networks can be attacked they can probably be broken. I know a pen-Tester, which can do that in a very short time, and they will have your virtual environment.

  Protect the machine from service/management console, Client vSphere, vCenter servers as if they were gold, access to them implies access to almost everything. That's why VMware strongly recommends that you create another network of virtualization management a firewall of all systems on your system. That within this firewall that place you jump machines that run all vSphere SDK and vSphere client and that you use something like RDP to access these tools without their execution through your firewall. Make this thing increases the security of your global virtual environment of giant protecting your investment in the current batch of management network attacks. VLANs are not a security tool, they are a tool of separation of network based on the pNetwork is correctly configured, maintained and checked. VLAN security is based on the confidence in your pSwitches not something that is authoritative.

  Best regards
  Edward L. Haletky VMware communities user moderator, VMware vExpert 2009, 2010

  Now available: url = http://www.astroarch.com/wiki/index.php/VMware_Virtual_Infrastructure_Security'VMware vSphere (TM) and Virtual Infrastructure Security' [/ URL]

  Also available url = http://www.astroarch.com/wiki/index.php/VMWare_ESX_Server_in_the_Enterprise"VMWare ESX Server in the enterprise" [url]

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• How can I actually talk to support multiple issues with multiple devices (software, hardware, account of the question?

  How can I actually speak to technical support issues to nulitple with multiple devices (software, hardware, account problems,) I have a touch screen of hp with windows 7 Home, Ipod, home router wireless, boost, WiFi, wii, etc.... Problems with windows live net Passport vs msn Id, problems with zune vs itunes and windows media that nobody wants play nice together.

  My touchscreen notes will use only a google account, music another program, and of course until recently google was not an option on the windows phone. of course if I'm going now that I'll lose all the games and music. His tent so frustrating of any help, that nobody seems to know how often these devices and programs interact (or care) HP has been of little use, even for my provider windows, microsoft, living cells and zune etc...

  All the changes that took place this last month will help but gets boring. I consider myself pretty computer savy, but maybe not, should not this difficult. I realized about a year ago I would have hired a technician but it seems immpossible to find someone who knows enough about all of the equipment and software to really do some good. My Hp touchscreen computer does not even play nice with their own HP printers. I really regret the time and money I spent. I could every Mac.

  All of the suggestions. Even your options do not address several problems of interaction with the hardware and software all needs of problems to adapt to a single category.

  Hello

  
  To correct the software issues run the methods mentioned below.
   
  Method 1: run the troubleshooter and check if the problem is resolved.
  http://Windows.Microsoft.com/en-us/Windows7/open-the-performance-Troubleshooter
  
  Method 2 : run a SFC (System File Checker) scan and see if the problem occurs.
  http://support.Microsoft.com/kb/929833
  
  Method 3 : run Clean boot and check if the problem persists.

  
  To help resolve the error and other messages, you can start Windows XP, Vista or Windows 7 by using a minimal set of drivers and startup programs. This type of boot is known as a "clean boot". A clean boot helps eliminate software conflicts.

  
  Note: follow step 7 to reset the computer to start as usual after the boot process.
  http://support.Microsoft.com/kb/929135

  To solve the problems related to Windows Live and MSN to check the links below on contact.

  
  After the question in the links below
  http://support.Microsoft.com/kb/940784
  http://windowslivehelp.com/
   
  To solve the problems related to the HP touch computer
  
  Update the HP touch drivers from the manufacturers Web site.

  http://Windows.Microsoft.com/en-us/Windows7/update-a-driver-for-hardware-that-isn ' t-work correctly

  If you need to talk to a Microsoft technician, then you can check the link below http://support.microsoft.com/kb/295539

  
  Hope that helps.

• How to configure a VM with multiple network cards to see Agent?

  How to configure a VM with multiple network cards to see Agent?

  We can archive this requirement by configuring the subnet used view Agent.

  The subnet determines which view address of Network Agent provides the server instance to connect to view for the client protocol connections. The view on VM officer has more than one NIC

  Follow the procedure below:

  on a display Agent installed VM,

  * Recording of VM session.

  * RUN--> type regedit or type regedit.exe at the command prompt

  * Create a registry entry to configure the subnet.

  For example: is HKLM\Software\VMware, Inc. \VMware VDM\Node Manager\subnet = n.n.n.n/m type - REG_SZ.

  In this example, n.n.n.n is the TCP/IP subnet, and m is the number of bits in the subnet mask.

• Cannot set the vmkernel and service on the same vswitch console with 1 NIC

  I'm currently setting up a new VMWare environment, using Starwind on a 2008 server for shared storage.  The question that I am running is, when I put the vmkernel (xxx.xxx.xxx.177) and the Service Console (xxx.xxx.xxx.178) on vSwitch0 with 1 card NETWORK, I can only ping the service console.  We also use a Cisco ESW 540 24 ports switch. StarWind support says they are sure it's the swithch, no fool, what needs to be changed in this respect.  If I put the VMKernel and the Service Console on VSwitches separate with separate NIC, it works fine.  Any suggestion would be appreciated.

  Make sure that the Cisco switch does not have port security enabled and allows multiple MAC addresses on the same port.

  André

• LUN with multiple IP addresses

  I have two questions actually. The first one being: I have a machine running OpenFiler with 3 iSCSI targets. This machine has two network cards with its own IP address. There are two ESX hosts. Currently in each, I added a new datastore VMFS among those LUNS and then added two more as extensions to this VMFS datastore. This is reflected on the hosts and all using only one of the IP addresses of the exploitation of SAN and openfiler Vmotion between two hosts. Could I take a host and add the LUNS through the second IP address and ESX still not see it as a shared storage for as each host could access the same LUN via treated separate IP and have still Vmotion works through them? If so, exactly how this would and would there be predictable performance/stability problems?

  Second, what sort of questions would be that we are facing if I place a second physical machine running OpenFiler and added the LUNS on this second box as extensions to the same data store? Theoretically, this should create the massive data store over two physical and accessible machines as a store of data shared by both ESX hosts. Thoughts?

  NOTE: I know that we can paste the two network cards in the SAN, but we had a lot of performance/stability problems when we had the machine running a linux distro standard with servile NIC and an NFS share as the data store. I also came across reliabillity issues when you try to bond in OpenFiler where I could access the web interface and then it would become randomly inaccessible and then later come back online and back. Whatever it is, we are witnessing a DRASTIC increase in performance on this unique nic with openfiler LUN iSCSI on any other scenario, we had Setup.

  In fact, Yes. Make sure that IP addresses are on different subnets for interfaces A and B:

  ESX-VMK1 192.168.100.5 = talk to SAN-NIC1 = 192.168.100.254
  ESX-VMK2 = 192.168.200.5 talk to SAN-NIC2 = 192.168.200.254

  Under NO circumstances should you use the same subnet for the multiple interfaces...

  If you have TWO ESX hosts, you can cross-available network cards so HostA 'prefer' subnet-1 and host b "prefer" subnet-2:

  ESX-A-VMK1 = 192.168.100.5 talk to SAN-NIC1 = 192.168.100.254 (preferably manually in the LUN path)
  ESX-B-VMK1 = 192.168.100.6 talk to SAN-NIC1 = 192.168.100.254

  and

  ESX-A-VMK2 = 192.168.200.5 talk to SAN-NIC2 = 192.168.200.254
  ESX-B-VMK2 = 192.168.200.6 talk to SAN-NIC2 = 192.168.200.254 (preferably manually in the LUN path)

  This arrangement gives you the bandwidth "dedicated" without losing the redundancy in case a card NETWORK goes down on one of the three hosts... If the subnet 1 becomes unusable (i.e. your D-Link switch dies) then a failover to the other switch will happen auto-magiquement.)

  If you find my comments useful, please assign points. Thank you.

  -Collin C. MacMillan

  SOLORI - Oriented Solution, LLC

  http://blog.Solori.NET

• El Capitan permissions bad for lib with multiple users

  On my Mac with multiple users and running El Capitan, I encountered a problem with an application (GoGlobal) failed to start with "errno = 13", which is a problem of permissions with usr/local/lib /.

  I determined that on Yosemite, usr/local/lib was owned by root and permissions: drwxr-xr-x. However, on El Capitan, usr/local/usr / local / lib lib is owned by one of the nicks (random?) and has permissions drwx-, which is the source of the errno = 13.

  I got around the problem by chmod 755 to lib /, but I fear that a future update will reset these permissions impassable previous values. Please correct these settings in install and update routines.

  GoGlobal isn't a request to Apple. You can send your message to the developer, who develops not only the Application itself, but the installation script that puts in place of its components.

• I use 4 windows with multiple tabs, but I 'don't know why one of them (window) always close when I restar computer

  I use 4 windows with multiple tabs, but I 'don't know why one of them (window) always close when I restar computer

  Hello, by default the firefox session restore feature only allows you to save last 3 windows open. to change this, type on: config in the address bar of firefox (confirmed the message information where it appears) and search for the preference named browser.sessionstore.max_windows_undo. Double-click it and change its value to 4 (or more).

  http://KB.mozillazine.org/browser.sessionstore.max_windows_undo

• Can bookmarks be portable to multiple computers? Is it an option to connect and use my favorites with multiple computers and locations? Thank you

  Can bookmarks be portable to multiple computers? Is it an option to connect and use my favorites with multiple computers and locations? Thank you

  https://support.Mozilla.com/en-us/KB/what-Firefox-sync

• How to export to pdf 1 sheet in a document with multiple sheets

  As the title says, my numbers document has several sheets.  I need to export one of these sheets as a pdf document, but instead it exports all sheets in a single PDF with multiple pages (1 page per sheet).

  Grateful for your help!

  Hi Michele,

  Instead of export, go to the sheet you want and use the Menu > file > print.

  In the Print Setup Panel, choose this sheet.

  Click on print... to see the print dialog.

  At the bottom left, click on the PDF pop up.

  You can open a PDF in preview (and print it from there), or print in PDF format.

  Click done to return to your document.

  Kind regards

  Ian.

• Indicator of waveform data dashboard with multiple locations

  I have a chart in waveform with multiple locations on my main VI running.

  I use the Application Dashboard data 2.2.1 on my Ipad to monitor table of wave shape of my running app.  I placed a marker on my Ipad and also related waveform with my waveform array variable.  I can't play my data dashboard application because it shows unable to connect to the server.  I noticed that it is because of multiple plots being plotted on my table of waveform.

  I could only play the App data dashboard when it is just a single parcel related to an indicator on the App.

  My question is if it's possible to have a graphical indicator of waveform on a data dashboard that has several plots being plotted and not only a single square, and how to configure it?

  Thank you.

  Click on Bravo and select as an accepted answer.  You are welcome.

• Using Outlook Express 6 with multiple identities.

  Had the hard drive problems.  He has been replaced by Dell warranty.  I have set up outlook express 6 with multiple identities.  I can't go from one to the other identity and return to the original, without having to restart my computer.  Dell has said that some things need to be changed to make it work properly.  They tell me what they were without a heavy load.  I used to use this feature with my old hard drive.  Help me please if you can...  Thanks in advance.

  Hi El KG,

  1. do you receive error messages or error codes?

  You can read the following article and check if it helps:

  OLEXP: "identity switch canceled" when starting Outlook Express

  http://support.Microsoft.com/kb/224463

  Also check the following links:

  OLEXP: How to create and use identities in Outlook Express 5.x and 6.0

  http://support.Microsoft.com/kb/209169

  http://www.Microsoft.com/Windows/IE/community/columns/identity.mspx

  http://social.answers.Microsoft.com/forums/en-us/outlookacct/thread/b53f3c5a-3733-4510-91dB-a23dc6224fc5

  Hope this information is useful.

  Jeremy K
  Microsoft Answers Support Engineer
  Visit our Microsoft answers feedback Forum and let us know what you think.

  If this post can help solve your problem, please click the 'Mark as answer' or 'Useful' at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.