Load balancing and replication between two ESX servers

Similar Questions

• Utility FNDLOAD between two different servers

  Hi friends,
  For the phase of the UAT of our project, we have a new server (server with RedHat Linux ES4 HP).
  We need to migrate reports form the unfounded (IBM - AIX 5.3 p) server to the new.
  FNDLOAD works between two different servers?
  If not, please tell me the reason why it doesnot work between servers.
  I would also like to know if there is a way to migrate data between two servers.

  As indicated in the documentation, it does not work between servers. You export the metadata and get an output file. Then, you take the output file and transfer it to the new source. Complete with examples, including the necessary part of XDOLoader.

• Replication between two servers without direct connecton

  Hi all

  In this case, we have two servers without direct access between them (firewall, security requirements). In fact the two servers are stored in different VPN.
  and the question is:
  Can you build an architecture that will provide replication between them (include the server in downstream, trails in the intermediate machine bank file, or something else)?

  Much love and thanks for your suggestions))
  

  Hello

  In this case, your downstream server should be able to communicate to your Source and target.

  Kind regards

  Veera

• Difference between the Port ID of the load balancer and MAC?

  There are three strategies for load balancing in 4.0 (one more now in 4.1):

  Function hash IP route

  Route based on the originating Virtual Port ID

  Route in function interference source to the MAC

  I think that I understand perfectly the "IP hash" and how it relates to switches, but what really is the difference between 'source MAC' and 'Port ID'?

  They seems both to do something very similar, which is attached a VM to a physical network card. Why someone should choose the CBC MAC and why the Port-ID? Is there a difference in the way that traffic will extend that could be interesting, when you do a design?

  Hello.

  To simplify, to really all boils down to the formula used to distribute traffic natachasery.

  "Discover Ken Cline" [the great vSwitch debate - part 3 | http://kensvirtualreality.wordpress.com/2009/04/05/The-Great-vswitch-Debate%E2%80%93part-3/] "for many more details on each option works.

  Good luck!

• Clone the virtual machine between two ESX 3.5.0 servers (low connection)

  Hi all!

  I have two ESX 3.5.0 servers that are managed by a vCenter servers one have just the connection of 32 KB.

  I need to clone one of my virtual machines from one to the other ESX is W2k8 created with 40 GB HARD drive. I tried to start it clone trough my low connection, but the task is about 86% for 4 days :|

  Is it possible to clone virtualmachine on one of my ESX for its local storage and after that, get it by vCenter for example an external HARD drive and then copy them all to my second ESX? How to run copied virtual machine on my second ESX? Maybe I can do it with another way - ideas?

  Two ESX are the same versions and machines, only the names and the ip addresses are different.

  Thanks for the tips

  Kris

  I don't think it is possible since the virtual disk will be 40 GB in size - I was suggesting using a laptop as a server NFS ESX sees and access the virtual machine for this storage clone - it take the first vessel of ESX host it to secondary site attach NFS datastore on the second ESX Server and using the browser of data store you navigate to the cloned VMX of VM file and to him the second ESX host - you can cold migrate leaving the second host and then move the cursor above for the storage you want.

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

• Network [vSphere 4.1] load balancing and failover vMotion

  GoodMorning everyone.

  I have some doubts about the configuration of the network for vMotion in vSphere 4.1

  I know that I can activate a single portgroup VMkernel for vMotion on the single host, but can I have this portgroup in a vSwitch with two or more physical NIC attached.

  Currently, I managed to have a vSwtich with vMotion and management of trade wth two NICs (see attachment).

  Both NICs works very well with the recovery for both exchanges.

  I would switch to a vSwitch with multiple network cards and I have some doubts.

  It seems that I could configure it... but the load balancer for vMotion supported on vSphere 4.1?

  And also, have the protgroup of vMotion in a switch with several network cards, is there a way to check what physical nic is currently used by vMotion?

  I am currently under a license from the company.

  Thank you all for your help.

  vMotion for vSphere pre 5 does not support Multi-NIC, in vSphere 5, you can configure several VMKernel enable vMotion and select different Nic Active and load balance between the two vmnic, but unfortunately not in vSphere 4.x

  For the management of ESXi, if you set active on both network adapters, you not to cross any active advantage / standby because it will only use on vmNIC, unless there is still a failure... but 1 vmNIC just because bandwidth is usually not a problem for the ESXi management only.

  So the answer: upgrade to vSphere 5 for multi-nic vMotion and don't worry ESXi management as an active NETWORK card is more than enough bandwidth,.

  Here's a YouTube on the Multi-NIC vMotion http://www.youtube.com/watch?v=7njBRF2N0Z8 configuration

• Load balancer and the consolidation of NETWORK cards

  Hello

  We recently had to our file VMware Server after a bit nasty failure of his original material.  Since we moved, it mostly worked OK, but we don't get the occational network shares paw when large files are thrown on.

  ESXi host, sure it works use 5Gbit ethernet adapters on the same Virtual Switch.  Looking at the traffic it would seem that all traffic flows in just a single NETWORK adapter and it is not much at all through the others.  Is something that I need to set it up so that it can better load balance between network cards?  Or is it a document anywhere who recommended settings for multiple network cards?

  I found a vDS topic but we have not undertaken more liciencing on most of our servers.

  We run VSphere 4.1 via the Vcentre server.

  Thanks for the help.

  faster4233 wrote:

  What you say makes a little more sense on what I see.  There is very little traffic flowing through other NETWORK cards, but is perhaps because there isn't any real traffic goes to them.  I thought that VMware may use multiple NICs, if it was required that is why I thought I'd see more data on the other.

  Curiosity is anyway that I can combine NICs for more flow using VMware?

  The load balancing, you can achieve with VMware is not a "real" load balancing, this is more a static distribution of traffic in accordance with the policy, you have chosen.

  You use means that according to the virtual switch port ID the vNIC to the host is connected to a specific bear is chosen. This unique vNIC traffic will use this bear as long as this bear does not fail. In this case the guests more with vNIC, you have the better are used Teddy.

  Other policies can be better for other scenarios. For example, 'Hash IP' uses the source IP address and target to choose a teddy bear. It is a good policy for a server with a vNIC single file and many different communication partners. The 'Source Port' policy route all traffic through a teddy bear so that 'Hash IP' policy would use many Teddy as not what ID port is used, but the communications partners. And a file server must have many of them, more than it has of vNIC.

  AWo

  VCP 3 & 4

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• Can someone direct me to resources on how you get TWO esx servers to the same storage array?

  Hi all

  I use:

  2 x Compaq DL380 G2 with 5i

  cards controller 5300 AND attached to the base storage Bay

  STORAGEWORKS ENCLOSURE 4354R RM DOUBLE PORTS U3 (not yet pregnant

  compatibility list).

  The first server appears to see the good in the console of the virtual server storage Center.  The second server will see s for only its own storage room tho.  How do both to see and use the same storage.  The concept is new to me, but trying to learn.  Is there something I need to see the same storage in the virtual Center for TWO machines esx Server?  All IM just not in the right place?  Thank you.

  http://communities.VMware.com/thread/78873 was a previous thread on this can enlighten us. Looks like the 4354R has the bus is divided into 2 x 7 disks and each connector in the back can 'see' 1 of the two buses. The quickspecs (http://h18000.www1.hp.com/products/quickspecs/10624_div/10624_div.html) refer to "... allows access to two areas of storage separated from two different servers. So the first "thing" would be to get two buses attached together inside the unit so that the two connectors on the back see all readers, you must get the endpoint SCSI disabled on the device (you want termination on each 'end' of the cable that is two SCSI adapters in the servers).

  While you might be able to get the 4354R shared between the two ESX hosts, you can also get all the benefits of the shared disk + the possibility of vMotion, etc. by implementing the 4354R known as iSCSI or NFS storage. It also swings you back to something that is 'supported '. To do this, you have two approaches

  1. Fix 4354R on one of the ESX boxes, create a virtual machine that has access to the entire disk on the 4354R and run something like OpenFiler in the virtual machine to 'share' the disk via NFS or iSCSI

  2. Set up a 3rd server if you have one available and run the version of "bare metal" OpenFiler, or install Linux or OpenSolaris distribution and configure NFS and/or iSCSI target.

• ASA Vpn load balancing and failover

  Hi all.

  We have two asa5520 configured as main unit and emergency in failover configuration, and everything works fine.

  Is it possible with this configuration (switch), configure the vpn load balancing/grouping?

  Thank you

  Daniele

  Hi Daniele,

  You cannot run two of them on two firewalls ASA, VPN feature load balancing or failover functionality.

  Where you need to use the two feature, you must use more than three ASA firewall, two first ASAs will work as the failover and the ASA third will work as cluster VPN for them, the following example uses four firewalls:

  ASA1 (active FO) - ASA2 (TF Standby)

  (VPN virtual master)

  |

  |

  |

  |

  (Backup VPN device)

  ASA3 (active FO) - ASA4 (TF Standby)

  Kind regards

  Wajih

• Replication between two sites with essential Kit more

  Hi all

  can anyone confirm that the following scenario is possible?

  A basic Kit Plus - replication - another essential Kit Plus
  3 Hosts                                                                      Other 3 Hosts

  In other words: is it possible to replicate virtual machines between two sites, each managed by a single essential Kit Plus (outside the bounds of the CV)?

  I'm sure that is correct, but I want to be sure.

  Thank you guys!

  Alex

  Yes, you can use replication between vCenters thus vSphere. To do that you would like to devices VR is deployed to each vCenter and then connect them. How to do this is described in the VR installation and config and administrative documents.

  BTW, my name is GS.

  See you soon!

• Three servers esx or two esx servers?

  We currently have three esx (dual dual-core, 16 GB) servers that are connected to a network of Hitachi SAN. We are trying to replace these servers with replacements and we have two options to meet our requirements about 12 GHz of CPU and 64 GB. We run around 20 virtual machines that are a combination of windows servers running exchange and file and print and redhat running oracle and jboss.

  Option 1: 2 x superiors servers dual QuadCore with 32 GB each

  Option 2: 3 x lower servers dual QuadCore with 24 GB each

  Both servers are the same model but different specifications, one is a high-end server. Three servers operate at about 20% cheaper.

  We will reuse the FC HBA, we have already three ESX licenses and we manage servers using VC, so there is no additional cost to the three servers (except the maintenance cost each year on an esx server).

  The advantages I see to have three servers are;

  • 12 hearts as opposed to 8 cores

  • redundancy n + 2 for base servers

  • 66% of capacity left after a failure instead of 50%

  • servers cheaper and cheaper maintenance as collateral can be reduced by one day to the next

  • more easy upgrades to new versions of esx server can be taken offline and still leave redundancy

  • bandwidth of 50% has increased to SAN

  • bandwidth increased by 50% to network (18 versus 12 NIC NIC

  I really don't see any downsides to having three servers?

  My boss however like the idea of two servers and I need to convince him, if anyone has information that would help in my case I'd be very happy.

  On the surface, it's easy to say, come on 3 Server... as you well pointed out the technical benefits. However, it is easy to underestimate the cost of this 3rd server. Of course, you have a sunk cost in the Vmware licensing, but you again year 2 and 3 cost. It is the same with the server, support costs for 3 years, power and cooling for another 3 years etc.

  This probably isn't a huge number, but your boss is probably thinking in this direction. Maybe you need to hit a quick worksheet to calculate these costs, and then compare these costs and benefits that you mentioned. Until you do this, your boss will probably have his way

  I would focus on availability and additional capabilities. Capacity is easy to align costs, so start there. The availability is important, but more difficult to quantify.

  Good luck.

  Dave

• How to load balance Terminal Server (Server 2008 R2) servers

  Now we have about 3 Terminal Server servers that are used by the three thin client Labs (30 stations by lab). So now I have a server terminal server assigned to a laboratory, and it does not work at the moment. But I am wanting to add additional Terminal Server servers, and want a way to load their balance between my clients light and other clients who will use them.

  I don't know what would be the best solution to achieve this scenario where I no longer need to assign a terminal server server to a laboratory, it is not good for the maintenance and if this terminal server goes down, which is sometimes made that lab it's all useless.

  I appreciate any thoughts on this and, eventually, how to do? Want to find a cheap solution.

  Thank you
  Chris

  Post in the Windows Server Forums:
  http://social.technet.Microsoft.com/forums/en-us/category/WindowsServer/

• Can this load balance and HA cluster with vsphere?

  Hello community!

  Really new on this type of subject, so forgive me if IAM iam do or say something wrong. I'm here to try to understand better this amazing tool so I apreciate your time and knowlodge!
  Im trying to create a failover and balancing cluster with Vsphere, the goal is try to install an MSSQL DB server where the customer can access more quickly and do not have downtime when a node is down.

  I read a lot but still I can't have a full understand abt, so if anyone tries to explain something, please be patient and explain with precision.

  All doing wrong if you really work at home as a LABORATORY, and I can do it, hurt trying to use it to get a job because I don't have and I really need one soon!
  Here is my diagram is possible?

  

  Well ill to explain it, I have clients that will send a work for my DB load process, which will affect on MSSQL Server installed on the 12 TB logical drive created from the union of all methods virtual storage. Each virtual storage is just a virtual disk created on a virtual machine that is hosted on the physical server (node).

  So I have 4 physical server which have 1 VM each with 3 TB of virtual disk, the goal is the customer can send the process of workload on 4 nodes to have a quicker response, and if a single node fails for any reason, the other node can operate withow problem.

  physical server Medley: don't know yet if I have to use one or install VMWARE directly.

  Sagna VM: Windows Server 2008 (don't know if necessary or if I can just install SQL Server directly)

  MSSQL Server VM: 2008 Enterprise (still don't know if I have to use this one)

  Well I can't think right now on the other details, but if you tell me ill be happy to write it.

  Sorry if my writing or semantics is false but English is not my first language.

  Really thanks to get to this point and share your knowlodge!

  Best regards, josh of Argentina!

  Josh, please correct me if I'm wrong, you have 4 knots of MS - SQL, and you need to read/write at the same time in a shared database of 12 to.

  If this is the case check the following documents:

  VMware KB: MSCS support improvements in vSphere 5.5

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1004617

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1034165

  Clustering using VMDK sharing between virtual machines

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=2009226

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

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=2003813

  The above covers the part of the diagram which includes 4 nodes SQL and the shared database, the other part of the client to the SQL nodes that segments the loads on the nodes, I think you should see Microsoft options.

  I found a few relevant links below:

  https://ask.SQLServerCentral.com/questions/51824/cluster-with-more-than-2-nodes.htm l

  SQL server 2008 r2: how? Several active node SQL Cluster (not) - database to stack Exchange administrators

• Problem with vmotion between two esx 4.1

  Hello

  I have set up an environment with a vcenter 4.1 and two Vsphere 4.1

  I've already implemented the vmotion between servers.

  However, when I try to migrate a virtual machine from one machine to the other, the process crashes with the following error:

  Migration to host < < unknown > > failed with the error Timeout (195887137).

  vMotion migration impossible to empty the buffer of the stream: Timeout

  vMotion migration expired 20000 ms waiting to transmit data

  Vmkernel, I see:

  4 August 19:35:19 edelvivesvir01 vmkernel: 0:02:16:28.511 cpu7:4288) MigrateNet: vm 4288:1422: dataSocket 0x4100a212f0c0 receive buffer is size 563724

  4 August 19:35:19 edelvivesvir01 vmkernel: 0:02:16:28.511 cpu7:4288) VMotion: 2825:1280943313439515 added D: 1 flow connection.

  4 August 19:35:19 edelvivesvir01 vmkernel: 0:02:16:28.696 cpu6:4612) VMotionDiskOp: 769: 1280943313439515 D: DiskOps successful trading.

  4 August 19:35:39 edelvivesvir01 vmkernel: 0:02:16:48.697 cpu11:4609) WARNING: VMotionUtil: 1147:1280943313439515 D: could not read header: Timeout

  4 August 19:35:39 edelvivesvir01 vmkernel: 0:02:16:48.697 cpu11:4609) WARNING: migrate: 296: 1280943313439515 D: Failed: timeout (0xbad0021) @0 x 0

  4 August 19:35:39 edelvivesvir01 vmkernel: 0:02:16:48.698 cpu11:4610) WARNING: VMotionUtil: 1147:1280943313439515 D: could not read header: Timeout

  4 August 19:35:39 edelvivesvir01 vmkernel: 0:02:16:48.709 cpu3:4605) WARNING: migrate: 4249: 1280943313439515 D: Migration considered a failure by the VMX.  It is probably a timeout, but check the VMX log for the actual error.

  4 August 19:35:39 edelvivesvir01 vmkernel: 0:02:16:48.720 cpu15:4613) FS3: 2988: Req mode: 1 audit delay of [type offset 10 c 00001 26828800 v 24, offset hb 3633152]

  [4 August 19:35:39 edelvivesvir01 vmkernel: gen 9, mode 3, owner 00000000-00000000-0000-000000000000 mtime 3228] on flight "SERVIDORES.

  4 August 19:35:43 edelvivesvir01 vmkernel: 0:02:16:52.735 cpu6:4605) Sched: vm 4606:1246: name = "vmm0:vCenter_Upgrade".

  I can do vmkping of each server to the other.

  The date is synchronized on both servers.

  Can someone help me understand this problem?

  Regards and thanks in advance.

  Hi again,

  Looks like you can't have jumbo frames enabled on the network adapters used by vMotion.

  I'm glad it works!

  VCP3/VCP4/VTSP/VSP/MCTS: Virtualization

• Not be able to share files and folders between two computer

  Hello
  I have a desktop PC in my room but no cable UTP. However, I have a laptop with working Wi - Fi connection perfectly fine so I decided to share it with my desktop via ethernet cable. Sharing network works fine, but my desktop PC Gets the APIPA IP address. I was told that this laptop creates a new network, a different IP so...

  Problem is I want to share my HARD drive between the two, but it does not seem possible because the computers are not in the same network.
  IP addresses are:
  1. laptop:

  IPv4: 192.168.1.4

  SM: 255.255.255.0

  DG: 192.168.1.1

  2 PC:

  IPv4 address: 192.168.137.225
  Subnet mask: 255.255.255.0
  Default gateway: 192.168.137.1

  -----------------------------------------------------------------------------------

  Bridge

  It does not at all... I have no shared Wi - Fi network first, then I bridget both, but Desktop PC puts a message that this IP address is already in use...

  Screenshots:

  Remote access credentials does not

  http://S25.postimg.org/lk281ej73/Connection2.PNG

  Bridge err on desktop PC

  http://S25.postimg.org/i3dy3noa7/Untitled_1.jpg

  Parameters of bridge on my laptop

  http://S25.postimg.org/5al8pznan/Untitled2.PNG

  I just want a connection to work on both PC and access each HARD drive (via the homegroup sharing). Is it possible to get a normal LAN address instead of AUTOMATIC, a bridge using private IP addressing or network option share?

  Any help would be appreciated,

  Ryan

  Original title: bridge/Share connection question

  Hello
  I was able to solve the problem. You wouldn't believe what caused it...
  Years ago, I changed my username on the laptop (in control of group/user accounts). When I tried to connect to my laptop from my desktop, I entered, of course, the same username and password I use to connect every day... However, Windows requires original/old username, that before I changed the to the present, which is very weird if you ask me... I was lucky enough a few other guys made a YT video about it. Who would have thought that you had to enter obsolete user name to connect to the homegroup, even if I use any other username to log when you use the mobile phone physically.

  in any case, thanks for your help.

  See you soon