Increase throughput for iSCSI with multiple NICs

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• 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

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  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

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• Tolerance of failure with multiple NICs

  Apologize if this has been asked before.

  I'll put up a vSphere 5.5 environment and I have NIC 1 GB for each host to devote two NICs per host for tolerance to failures.  I was wondering the best way to set this up to their maximum output.  I have implemented as a Multi - NIC Vmotion?  As noted here: VMware KB: Multiple-NIC in vSphere vMotion 5. Essentially using two groups of ports as FT-1 and FT-2.  Or what I need to do as a Multi-NIC iSCSI with separate vswitches and each vswitch with a Port Group.

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  You run into a problem of flow when you use 1 NIC for FT?

  Currently FT only supports using a single network adapter (1 G or 10 G)

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  Hey Broutchoux,.

  Here are some links of the knowledge base that relate to this issue.

  http://digital.NI.com/public.nsf/allkb/7567EF257B9CFDF986256F630073228F?OpenDocument

  http://digital.NI.com/public.nsf/allkb/4C03BE7BFD1D00948625670B0061CB6A?OpenDocument

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• I share the same target iSCSI with multiple hosts?

  I have an iSCSI LUN target that appears when I discovered the storage for an ESXi host, but when I discovered the storage for another host, it does not appear. I added the suitable adapter software network and iSCSI on the second host, dynamic analysis and he sees the same iSCSI target, however when I go to 'Add a storage' there is no displayed LUN.

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  Storage Area Network - FC and iSCSI - do not automatically appear LUN to all hosts that connect to them. This is also called masking and prevents accidental access to LUNS of the host that is not allowed access to that LUN. You must configure the storage system, access to the LUN - once you do this for the other hosts will be displayed in the list and you will be able to access all hosts logic unit number.

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

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• 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

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• Network of twinning with Port trunks to support the host ESX VShere 4 with several NIC for load balancing across a HP ProCurve 2810 - 24 G

  We are trying to increase production of our ESX host.

  ESX4 with 6 NIC connected to HP Procurve 2810 - 24G 2 ports; 4; 6; 8; 10 and 12.

  The

  grouping of parameters on ESX is rather easy to activate, however, we do not know

  How to configure the HP switch to support above connections.

  Pourrait

  someone please help with a few examples on how to seup the HP switch.

  Help will be greatly appreciated as we continue to lose tru RDP sessions

  disconnects.

  Best regards, Hendrik

  Disabling protocols spanning-tree on the Procurve ports connected to the ESX host is going to promote a recovery more rapid port. Similarly, running global spanning tree is not recommended if you mix some VLAN iSCSI and data in the same fabric (i.. e. you do not want a STP process to hang storage IO). Spanning tree on your switches, look PVST (or Procurve BPMH) to isolate the STP VLANs unique events.

  In regard to the load balancing is, by default (route based port ID) value algorithm requires less overhead on the ESX hosts.  You may not use LACP on the Provurve the lack of facilities LACP ESX. You must use "route based on the IP hash" sideways ESX and 'static trunks' on the side of Procurve. Unless you have specific reasons why your network need loads this configuration, I'd caution against it for the following reasons:

  (1) IP hash requires thorough inspection of packages by the ESX host, increasing CPU load as load package increases;

  (2) the static configuration puts switch physics rigid and critical ESX host port mapping. Similarly, groups of ports all will fail as the Procurve batteries for management only and won't be on switches 802.3ad circuits Group (i.e. all ports of a group of circuits must be linked to a single switch) - this isn't a limitation of the port ID routing;

  (3) K.I.S.S. love port ID mix of port ID, beacon probe and failover on the port assignments you will get segregation of the raw traffic without sacrificing redundancy - even through switches.

  I hope this helps!

  -Collin C. MacMillan

  SOLORI - Oriented Solution, LLC

  http://blog.Solori.NET

  If you find this information useful, please give points to "correct" or "useful".

• How better to configure ports of ether-channel for use with iSCSI?

  I had a quick glance and find a number of different discussions about the best solution for simlar scenarios but nothing quite close enough to convince me to implement the proposed solution.

  The configuration that I was left with is not ideal, because it is not redundent. So I need to find a quick solution pritty.

  Two cards (each NIC goes to different switch) - Console of Service

  Two network cards (both in the same key) - vMotion

  Two network cards (they both go to the same switch) - Prod (10 discussions)

  Two network cards (they both go to the same switch in an ether channel) - storage (iSCSI)

  The environment is a cluster of three ESXi 4.1 ENT U1 + environment, connected to a vCenter STD.

  Here's what I intend to allocate, but hoped a nice person enough to suggest the best configuration. I realize the number of connections to Prod is excessive and we will reach neaver as bandwidth, but I have free network cards.

  Two cards (each NIC goes to different switch) - Console of Service

  Two cards (each NIC goes to different switch) - vMotion

  Four NICs (two pairs in different switches) - Prod (10 discussions)

  Four (#) - storage (iSCSI) network interface cards

  The part that concerns me is get the configuration for storage network cards just like we use the ether-channel, which seems to complicate things from what I've read.

  So in summary I want to use four NICs for storage and bandwidth is not wasted I currenlty have using the channel of the ether. If I can work it another way without the use of ether-channel I am pleased to see again.

  If I have not provided enough information to evaluate, please let me know and I'll give you more.

  Thanks in advance for any helpful information.

  So in summary I want to use four NICs for storage and bandwidth is not wasted I currenlty have using the channel of the ether. If I can work it another way without the use of ether-channel I am pleased to see again.

  First of all, let me squash the myth an EtherChannel gives you additional bandwidth for iSCSI. Each iSCSI initiator can use an uplink to an iSCSI target vSphere being limited to a hash value "IP". Given that the source and destination IPs are always the same, the hash is always the same.

  I wrote about it here in my post seriously, Stop "Using Port channels for vSphere storage traffic":

  http://wahlnetwork.com/2013/03/05/stop-using-port-channels-to-vSphere-hosts/

  I recommend to use the vmkernel ports link. It is available in 4.1, but not through the GUI.

  http://pubs.VMware.com/vSphere-4-ESX-vCenter/topic/com.VMware.vSphere.config_iscsi.doc_40/esx_san_config/configuring_iscsi/t_connect_software_iscsi_initiators_to_iscsi_vmkernel_ports.html

• How to configure a NIC connection for iSCSI

  I have a few 2950 s PowerEdge with four NICs in them, trying to use the NIC bonding on 3 of them for iSCSI.

  Are there articles or KB links explaining how to do (if it is possible?)

  Or, just point me to the right section in the vSphere client and I can understand... I have just found nothing of poking around, I wonder if it's just not possible?

  Hello

  The best answer here is that consolidation of NICs for iSCSI traffic is not supported and the various guides on the paths where you should look.

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