4path iSCSI with 2 switch

Similar Questions

• iSCSI with stacked switches

  Hi guys,.

  I have a client who is looking to implement a new iscsi solution.

  We are looking for in the design of the network iscsi at the moment and my preference would be to have two switch dedicated for iscsi traffic.

  The customer, however, is eager to use 2 switches configured as a battery and use a vlan.

  So my question is, connecting the iscsi network to stacked switches would cause problems in terms of failover etc.?

  Thank you

  DC

  NO it shouldn't cause any problems-

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

• Problem with GS716T Switch

  This morning we plugged a phone Avaya IP (5621SW) to our network. It synchronized to the top, as it was supposed to, but we started to receive calls on PC hide. After some research, it seems that all PCs connected to a GS716T switch indicates no network connection when the phone is connected. Unplug the phone and turning the power on/off switch everything returns to normal. No other Netgear switch have been affected. We have replaced the GS716T with another switch (not a GS716T) and connect the IP phone has no effect. Wondering what it might be on the GS716T which makes it sensitive to the IP phone? Any thoughts?

  Hello Kelley,

  Well, this isn't the configuration that I expected. The model number of the phone was 5621SW, so I thought that the connection is PC > phone > switch. I tried searching a few cases reported on the GS716T and did not find anything related. This problem is, I should say a little weird, since they do not use the same switch. But let's start the update of the firmware.

  We will wait for your update.

  Thank you

• Can I configure NISE with a switch of party - if the switch is not installed?

  I've never used NOR Switch before Executive - we hope to use it on a new project.

  We do not have equipment at the moment - we will use a Pickering 40-540-021 '132 x 4' switch.

  I would like to configure NI Switch Executive before Pickering delivered cards, is it possible? I get an error when I create the NI Switch Executive virtual device. Seems that MAX is trying to communicate with the switch card before allowing me to configure routes/exclusions/groups etc..

  Here's what I've done so far:

  -Install the drivers of Pickering.

  -To the MAX (v5) I have setup a session driver IVI and logical name.

  When I try to create a new NI Switch Executive peripheral virtual, I add the logical name of the switch, click [next] and get the NISE error...

  "An error occurred so they were trying to access the devices PROJECTSWITCH. The primary error: unknown status code (Hex 0xBFFA400C).

  I see that a virtual device is created with no logical switch assigned. I get the error even if I try and add a logical switch manually to the virtual device NISE.

  Is it because the switch Board is not available for the system? Can I configure the routing/groups/exclusions without the device being mounted physically switch?

  Thank you

  Alan

  Alan.

  
  Seems that MAX is trying to communicate with the switch card before allowing me to configure routes/exclusions/groups etc..

  This should be the expected behavior. NEITHER Switch Executive tries to communicate with the instrument before allowing you to configure routes to ensure that there is no problem that would affect the operation of the Switch Executive. In your case the pilot trying to communicate with a non-existent device.

  I would like to configure NI Switch Executive before Pickering delivered cards, is it possible? Can I configure the routing/groups/exclusions without the device being mounted physically switch?

  It is possible that all compatible IVI devices should have the ability to simulate.

  It seems that you have configured your session of IVI driver incorrectly for a simulated device. I try and make sure that in the session driver, under the 'Général' tab, select the drop down menu to "Simulate with" and select 'Specific driver' and then click 'Save the IVI Configuration'. This will return the Pickering driver selected in the 'software' tab and simulate a device. This should allow you to create a virtual device NI Switch Executive and develop and test the code on the simulated instruments.

  I would like to know if you have any other questions.

• Brightness problem with aspire switch 10

  Hi all

  I have a gene with a switch screen aspire 10.
  The brightness level is constantly changing. It is not dependend on the ambient light, because I turned off Adaptive brightness. (When I put a flashlight on the light sensor that does nothing).

  For example: sometimes when I switch between the metro and the desktop mode. Notable stage screens turns a bit more or less clear. It also happens when you watch movies, opening programs, almost always when the image changes.

  Does anyone know a solution to this?

  Kind regards.

  To resolve this problem, I did this.

  On the desktop, right-click. Properties of the graph. Power. I turned off the screen of the energy saving technology.

  I hope this works for you also.

  

• How is it that a computer which works very well with a direct Ethernet connection won't work with a switch, however any other computer using the same port, cable, ect, and so on, can?

  Switch issues. Help, please.

  How is it that a computer which works very well with a direct Ethernet connection won't work with a switch, however any other computer using the same port, cable, ect, and so on, can? We already checked the firewall as a question, that it was not, and now, we are puzzled.

  Well, I know that the issue is long-term... believe me, it's a long, but as they say, the devil is in the details. Anywho, the question is, my grandfather has a HP laptop, which for two years has been able to run through a Linksys switch to his router and connect its printers to his laptop. About two months ago it suddenly doesn't work like that. Now, it works fine if it plugs directly into the router/Ethernet. My uncle suggested that the switch was bad, but after testing the same port, cable and all, the switch worked well for him. ' GRAMPS really needs this answered, but someone else, it is called can not understand and now I, in turn, ask you all for what you can offer. Here are the ideas that we have already discredited.

  -Switch bad: as above, is that this particular laptop, even under identical conditions, the works of my uncle very well.
  -Bad NIC: debunked through the fact we connected to the computer directly to the router and it worked fine.
  -Bad configuration of the firewall: we have disabled the firewall (please do not notice, he wasn't the smartest idea, we already know) and even if she recorded the switch exists, the internet is always triggered when you are connected with the switch.

  Thanks in advance for any assistance that you can provide and Merry Christmas to you all.

  It would be useful to consult the results of the ipconfig/all command both when it is connected to the switch and when it is connected directly to the router.  In addition, what is the model of the switch?

  To save the manual copy and the new hits of the ipconfig/all command output-

  First connect through switch.
  Open a command prompt window (start > run > cmd > OK)
  Type the following lines in the black command prompt window and press ENTER after each line

  echo "Connected via the button" > "% UserProfile%\Desktop\ipinfo.txt".
  ipconfig/all > "% UserProfile%\Desktop\ipinfo.txt".

  Now connect directly to the router, type the following lines in the command prompt window and press ENTER after each line

  echo "Connected to the router" > "% UserProfile%\Desktop\ipinfo.txt".
  ipconfig/all > "% UserProfile%\Desktop\ipinfo.txt".
  Notepad '% UserProfile%\Desktop\ipinfo.txt '.
  output

  Copy the contents of the Notepad window in your response (if you use the laptop when it is connected directly to the router) or close the Notepad window, and then copy ipinfo.txt of the laptop to the Gramps in a USB FlashDrive you can connect to any computer allows you to answer.

  You can delete ipinfo.txt on the desktop when you are finished.

• ISE 1.1.2 change of authorization with Avaya switches (5520)

  Hello

  I'm ise configuration to make the assessment of posture. I saw avaya my LAN and Core switches. The idea is once the user is authenticated using 802. 1 x, then it will be moved to qurantine vlan and after that it complies with the policy of the company then it will be moved to the vlan real. I have configured the switch avaya to accept the assigned vlan and also configured RADIUS authentication dynamic 802. 1 x. Currently, RADIUS assigned qurantine vlan works but once the nac scan agent and mark the status of compatible PC then the CoA is not the case, and user is not moved to the vlan real.

  I tested the same authorization of the ise policy to assign dynamically VLANS on switches cisco and it worked perfectly, but the same thing is not happening on avaya switch.

  Any idea on this?

  Kind regards

  Akhtar

  Akhtar,

  Posture with ISE flows have only been tested with Cisco switches:

  http://www.Cisco.com/en/us/docs/security/ISE/1.1.1/compatibility/ise_sdt.html

  The RFC says that port 3799 is for CoA, but due to a conflict, we use port 1700 so that my have something to do with it. That said we don't pretend to support 3rd party switches currently.  If you do not want to see this please contact your Cisco account team to check the status of the part 3 switch support or request the feature.

  -Jesse

• LUN iSCSI with 4096 bytes logical block cannot be formatted

  Anyone using Freenas to disseminate to ESXi 5.1 iSCSI LUNS?

  Can you use LUNS which are presented with 4 096 blocksize bytes?

  Here a Lun iSCSI with 4096 bytes logical block cannot be formatted with a VMFS volume
  Same logical unit number presented with works by 512 bytes

  I have enclosed two copies, one before that I did anything and the second after that I tried to add the data store.

  So I first created the LUN and presented to the host;

  

  You get a nice warning;

  

  I see this new LUN;

  

  Pending;

  

  If you wait long enough;

  

  In the next step, it breaks;

  

• iSCSI with MPIO

  I need configure the virtual switch in VMware for an iSCSI Array does not support LACP or aggregation of any kind.

  There are 4 ports on the table that can be used.

  • How many cables should I use for my 7K table?
  • Should I use MPIO for LACP is not an option?
  • How many IP addresses to configure on my table for iSCSI?
    
    

  I never used LACP for iSCSI connectivity, I don't know yet if this is supported by VMware! Anyway, basically you will configure an IP address for each target port and an IP address to each initiator VMkernel on one or more ESXi hosts. You may need to double-check with the documentation of the unit of the range, if for example a VIP (virtual IP) for the target to be used, and the question of whether IP addresses should be in the same or in different subnets. If storage systems supports the path of Round-Robin policy, then make sure that set you this for the LUN to the advantage of the bandwidth available.

  André

• RS 5 with netapp SRA, FCOE site iSCSI with RDM

  Hi team, could someone please help to veify if it works in this scenario.

  We have PROD site running vmware vcenter 5.0, esxi5.0, SRM 5.0, Netapp 3210 ONTAP8.1 version file server. The VMs are windows Server2008, MS SQL2008 as major DB. Virtual RDM database files. Only FCOE for this site. AD is a physical Server 2003. The rest are virtual machines

  We offer you to have SRM for DR site deployment. The DR site is synchronized with netapp SRA snapmirrror, controlled by the console SRM5.0. Recovery site has no FCOE, only iSCSI and NFS license availble. Always RDM but using iScsi. vCenter 5.0, 5.0, netapp ONTAP8.1 2040 esxi.

  My questions are:

  1. If VMware SRM support DR failover for this case with the different protocol, PROD is FCoE, iscsi DR

  2. If the SRM supports failover with RDM in our case

  3. If the AD DR Server site need to be installed as a new best practices, or we will have to use SRM to switch production announced on website of Dr. What is recommended.

  4. If the physical AD can be kept as the common way and always taken SRM supported

  5. to the recovery site, which is the best practice? To use NFS to store data and iSCSI for iscsi? Or store data and RDM using iSCSI LUNS to simplify?

  
  

  Thank you!
  

  1. Yes
  2. Yes
  3. I would recommend if possible having a domain controller AD, already running on the DR site - it may be a virtual machine
  4. Yes, the PROD site domain controller can be physical
  5. I'd keep all compatible iSCSI so so -.

• Help with redundant switches

  Can somone tell me if it is necessary to join two switches together during the definition of redundant paths and so why is this need to be?

  To give an example, I have a box of ESXi 3.5 with 2 uplinks were team together for iSCSI software storage. On this team, I have a cable going to a switch and another cable from another switch. My san also has the same configuration for the grouping.

  The switches must be connected togther and if so why?

  Thank you

  Tony

  Typical connecting two switches together aims to make them behave like a single large switch and increase redundancy.

  Charles nights, VCP

  If you have found this or other useful information, please consider awarding points to 'Correct' or 'useful '.

• Initiator iSCSI and virutal switching

  Hi all

  When you set up a smaller ESX laboratory with only 2 cards psyhical best practice is to configure it up like this:

  pNIC0 - & gt; vSwitch0 - & gt; Portgroup0 (service console)

  ..................-> Portgroup1 (VMotion)

  ..................-> Portgroup2 (storage area network)

  pNIC1 - & gt; vSwitch0 - & gt; Portgroup3 (the VM network)

  Then, assign pNIC1 as the backup Teddy to Portgroup0, Portgroup1 and Portgroup2. Finally, assign pNIC0 as the Teddy to Portgroup3 backup. It works better but when them VLAN is enabled. You want to configure explicitly each portgroup strict failover mode and not to use any form of load balancing.

  However if you use a device with an initator software iSCSI, you need to install a 2nd Console of Service if the iSCSI is on another network? and you want it to be on another network?  So that being said would be your configuration would look like the following?

  pNIC0 - & gt; vSwitch0 - & gt; Portgroup0 (service console) 10.10.1.20

  ..................-> Portgroup1 (VMotion)

  pNIC1. - & gt; Portgroup2 (storage area network) 172.16.1.10

  pNIC1 - & gt; Portgroup3 (Service Console iSCSI) 172.16.1.11

  pNIC0 - & gt; vSwitch0 - & gt; Portgroup4 (the VM network) 10.10.1.X

  "However since your 2nd nic is on a differnet IP / network switch option custom" really work so what is the best configuration in a situation like that?

  When you set up a smaller ESX laboratory with only 2 cards psyhical best practice is to configure it up like this:

  pNIC0-> vSwitch0-> Portgroup0 (service console)

  ...-> Portgroup1 (VMotion)

  ...-> Portgroup2 (storage area network)

  pNIC1-> vSwitch0-> Portgroup3 (the VM network)

  It is the recommended configuration.

  However if you use a device with an initator software iSCSI, you need to install a 2nd Console of Service if the iSCSI is on another network?

  No you don't need a 2nd port SC. The supreme court should just participate in the iSCSI network. You can do this by using a route/router or firewall.

  HC participates in the iSCSI network as the original configuration will be fine. A second port SC is not necessary but if you really want to add - we do:

  pNIC0->-> Portgroup0 (service console) VLAN100 vSwitch0

  ...-> Portgroup1 (VMotion) VLAN200

  ...-> Portgroup2 (storage area network) VLAN300

  ...-> Portgroup3 (service console) VLAN300

  pNIC1-> vSwitch0-> Portgroup4 (VM Network) VLAN400

  All portgroup on the same VLAN can talk to all the other exchanges on the same VLAN.

  Best regards
  Edward L. Haletky
  VMware communities user moderator, VMware vExpert 2009, Analyst of DABCC
  ====
  Now available on Rough Cuts: ' VMware vSphere (TM) and Virtual Infrastructure Security: ESX security and virtual environment '
  Also available "VMWare ESX Server in the enterprise"
  SearchVMware Pro| Blue gears. Top virtualization security links| Security Round Table Podcast virtualization

• Best wireless network installation with the switch TP-Link

  Hi all

  Few question numpty maybe, but what follows... We just moved to a new (larger) home with thick walls and I want to set up a new wireless network.

  The current installation is:

  Fiber cable entering the House in the basement and connected the modem to the service provider that provides 150 mb internet. I changed the capacity wireless on the ISP's modem and connecting an airport extreme (2014 model) via the LAN to the modem. The extreme is in the office but on the 3rd floor is having connection problems than you can imagine. All rooms have access points CAT5e who all meet in the basement. I have two spare Aiport express and two Apple TV that I would use. Also I bought a TP-LINK 1000mbps (16 channels) Network Switch.

  Could someone please tell how the best set-up of my home network. For example, the Airport Express to the 3rd floor connected to the switch (wired) network or to an extreme in the Office? Apple TV also connected to the network switch?

  I would like to end up with a solid wireless network that passes without problem from extreme to Express necessary each time you walk and you want to use an Apple TV for television on the ground floor and one in our room.

  Many thanks and apologies once more for this very basic question... I have expanded my front (extreme Express) wireless network but just don't know how best to use the switch.

  Thank you

  The simplest up set... which is almost always the best game in place... would be to connect the switch 16 ports to the modem/router and then connect devices to the switch. In other words, if your modem/router has 16 + Ethernet ports, the simplest network configuration would be to plug as many devices as possible directly to the modem/router.

  Other variants are possible, for example, the network might look like this:

  Internet > Modem/Router > AirPort Extreme > switch > devices... or, you can connect certain devices to ports Ethernet on the AirPort Extreme and some to the ports on the switch.  One thing to keep in mind however... If there is a problem... Troubleshooting may not be easy since it will be difficult to know where the problem actually lies.  Much easier to all have, or of possible devices, connect to the switch.

  Unfortunately, the AirPort Express devices will be of real bottlenecks on your network.  These devices are notoriously slow as well as wireless, and even if they work well, the speed will be does not exceed 100 Mbps... since it's the speed of the port to the AirPort Express.  In fact, I expect each Express to provide a wireless signal in the range of 50-60 Mbps.

  Another thing to keep in mind of the wireless network is that Macs will usually a good work of tilting automatically to the point of wireless to the other as moving from one place to the other in the House... but the iPhones, iPads, PCs, and other mobile devices will do that very well... If they do at all.

  So with these devices, you will need to get used to temporarily disable the WiFi on the device and the device when you move in one region to the other, and then turn WiFi on must generally then pick up the signal from a nearby wireless access point.

• iSCSI with armOS5.3.11 v2 Readynas NV +.

  Hi all

  I have a Readynas NV + v2 (RND4000v2), armOS5.3.11 and I would like to create an iSCSI target. I can't see any menu on the iSCSI service. I can't upgrade to OS6 (I find a lot of guide to do this with OS6, but none with os5).

  Please can someone help me?

  Thanks in advance

  Concerning

  Davide

  Unfortunately the nv + v2 firmware does not support the iSCSI (and you cannot load OS6 on the platform either)

  So if you need this, I think that you will need a new SIN.

• cRIO-9074 ethercat with a switch/hub between the cRIO and slaves

  Hi, I have a cRIO9074 I'll use 7 JVL EtherCat Mac800 motor control.  Engines are fairly spaced, so I use a switch of CU2005 EtherCat Beckhoff 5 ports between the readers and the cRIO with 2 motors in series on three legs and a motor on a port by itself.  My problem is that labview will not find all engines unless one of the ports on the switch motor is plugged, or a line of engine is connected directly to the port ethercat cRIO.  He has no problem see two engines on the same line, it just will not see one of them if more than one line of motor is connected to the switch ethercat.

  Thus, HALP!