LUN mapping - duplicate Monday in ESXi

Similar Questions

• Move a virtual machine that has a raw lun mapped to SAN

  Dear all,

  I need expert advice for this case. I have a virtual machine on a host with esxi 4.0, but due to many machines same virtual host we are experiencing memory problems and have decided to move this virtual machine to another host with less VM and less use of resources.

  I plan 1 HR time to perform this task, this virtual machine have two drives one windows partition and the second 20 GB as mapped lun on SAN. So when you move it to another host, what I'll do is tap to stop the virtual machine, go to another host and storage switch to VM folder and add the VM.vmx file to add it to the inventory of the new host. What about the case of raw LUN mapped, how to take care of it.

  Please advise, it is little urgent.

  Thank you

  I guess there is no vCenter at stake here and you have no option for vMotion? The RDM, I would like to stop the virtual machine, detach the RDM LUN, migrating the virtual machine and re - attach the RDM.  As long as the two hosts can see SAN/RDM, you should be good with that.

• Map storage IBM to Esxi 5.1 CIFS host

  Hello

  I am a beginner with vmware, I just want to know is it supported for mapping a CIFS storage ESXi 5.1 IBM host, then use it as a data store for place of the virtual computer.

  Thanks and respect

  J.P. Raynaud

  Welcome to the community - no. it is not taken in charge - if you have the storage NAS/NFS, you will be able to access to I for your ESXi host - or if you want to present the end to VM you can access VM shared the CIF

• LUN mapped to VMDK raw conversion

  I tried to convert a raw LUN mapped to a VMDK file on a server without importance. He worked as indicated.

  I'm not trying to do still more improtant servers. I can't find the instructions. I know that I found them here. I tried everything I can think of. Two things must be true.

  The post has been abolished.

  The search engine is bad.

  Anyway, I know that the command was something like that.

  vmkfstools-i & lt; src file & gt; thin d & lt; dest file & gt;

  Can someone point be right show or tell me the proper syntax?

  The order is right.

  But if you have vCenter you can easy to use migration: or a cold datastore migration or a SVMotion (if you have vCenter 4.0) allows you to convert your ROW in a "vmdk" disk

  André

• How to remove safely LUNS of any army of ESXi.

  Dear team,

  I have ha/drs cluster enabled with 4 esxi host. I deleted the 2 ESXi host data store and the same thing is visible in the add storage wizard. I want to cancel the map safely those LUNS of these esxi hosts, before the deletion side SAN I need run commands that we were in esx4.x (rule creation mask)

  need your help to remove these entries from lun to esxi all host them once those LUNS uncharted side san I don't want any kind of errors in the vmkwarning vmkernel\------vmksummary------message log.

  Appreciate your help...

  concerning

  Mr. VMware

  You can ignore these alarms. They happen to me every time I do it. You have performed the proper procedure. Although I usually remove the LUN manually and do not let the detach operation to do. Also, if you use HA-check is not a heartbeat data store.

  But the alarms are normal, worry not.

• Delete the ROW (but not the LUN) mapping file

  I am looking for a test of consistency here.

  I want to delete a ROW of a data store map file but does not affect the LUN.  The original question was that the virtual machine has a physical RDM mapped mode that would fail to vmotion.  vCenter reported that the ROW was not available on the other hosts; We checked that the LUN has been.  I ended up remove the ROW of the vm, quick vMotioning of the virtual machine and add the row as a new disk (virtual mode this time), actually create a new mapping file.  Now, all the works of the feature and the machine can vmotion around the cluster.

  It is now a week now, and all is well.  I would like to go back and remove the original (defective) rdm mapping file.  I've never done this, so I would like someone to check that there is no effect on the LUN it is / was mapped to.

  Furthermore, it's all about vSphere 4.1.  Problem was discovered to plug the hypervisors to ESXi 4.1 800380.  The virtual machine with the issue has been glued on an ESXi 4.1 host 433742.  It was the latest patch.  Machine virtual don't vmotion to other hosts until they were patches, while she probably had nothing to do with patch levels.

  Thank you

  Craig

  Hello

  You cannot delete the ROW from the data store where the virtual machine is running, because it is attached to the virtual machine.

  If you are talking about the old file RDM, which was under the old data store where previously the VM was lying and there is nothing to do with your existing VM that's running, you can remove the same. But if the same RDM file points to the current running VM, then you cannot delete the same.

• the iSCSI LUN mapping

  How ESXi is mapped LUN vmfs iSCSI extends? The reason why I ask, is that in my opinion, he should do a mapping to make it persistent after a reboot?

  fajarpri wrote:

  @Rikard, similar like that. How ESX knows that Lun0 will extent1 and Lun1 goes to extend2 in this store a data?

  Wouldn't there is possibility that ESX detects Lun1 first than Lun0 and thus risk recognizing as extent1?

  I guess it's a bit 'Internal ESXi', but it should be the NAA or T10 number reported by the SAN and no id LUN itself using ESXi to recognize discs. Given that these numbers never change, there is risk of errors between reboots. I have a vague memory of which is a kind of question on the 3.x versions, but do not these days.

• LUN mapping question

  Greetings community, I have a rather weird question I hope one of you can help me with.

  We have a server ESXi (3.5 U4) hosting a Server 2003 Windws running SQL 2005.  This virtual machine using Microsoft iSCSI Initiator to map directly to ONE of our iSCSI for SQL data storage device and record volumes.  We know that this isn't the most effective way to achieve this, where the following question:

  If stop us the virtual machine and and change the LUNS will lose us the data on them to RDM to present directly to the guest?  Windows will recognize the new disks properly?

  Thank you much for the help

  You won't lose any data. just remove it and add it. Windows should simply acknowledge once again with no problems.

  Duncan

  VMware communities user moderator | VCP | VCDX

  -

• Query on LUN mapping

  Hi forum,

  We have MD3200 I array (iSCSI). We have a LUN 1 TB mapped to a host group that contains 2 servers (Linux).

  Now, we want to map this LUN on another Windows Server. (but do not want to remove the previous mapping).

  Is it possible and if possible will have no impact on performance.

  Thanking in advance

  J.P. Raynaud

  Unfortunately, if I understand you correctly you want to have the LUN to be mapped to Linux servers, and also on a Windows host, which is not a good idea. The reason is when you try to map the same LUN 2 different types of OS you will corrupt your data. What you want to do, is to have a virtual drive for Windows Welcome. This a medium VD would be for Linux and one for Windows and the performance would be great like that as well. I hope that answers your questions.

• SAN LUN must be disconnected to ESXi 4.1 U3 upgrade?

  Salvation;

  I was wondering if SAN LUN must be separated (registered) during the upgrade of U3 for an ESXi host.

  I did the upgrade on a new host that is not yet in production, and has any HBA inside.

  I just tried on a variety of prod in maintenance mode and it gets to a screen and it shows the LUNS sees it. (see the attached screenshot)

  I know that the local drive is the target, but I want to just make sure that nothing happens on the remote SAN LUNS if I proceed.

  Any info would be great, thanks.

  If I am mistaken, interactively fix/upgrade using the CD is only supported with ESXi 5.0 and newer. In doing so, with the ESXi 4.1 CD, will wipe the installation disc! A method of support for ESXi 4.1 update is for example the vihostupdate command-line utility to apply the patches provided in http://www.vmware.com/patchmgr/download.portal.

  André

  PS: Please consider joining screenshots in format rather than .rtf .jpg files.

  PS2: Issues displayed in communities VMTN (http://communities.vmware.com/community/) rather than in groups generally receive more attention.

• Added raw lun mapped as a new hard drive, but VM does not see it.

  ESX 4.0 with two Windows Server 2008 virtual computer running.

  Created with SAN volumes and put at the disposal of the ESX host.

  I went in with my client vSphere virtual machine settings and added a new hard drive > mapped raw lun, stored with VM, physical and everything seems to set up correctly after hitting good. I also increased the size of the other two disks on this virtual machine. I rebooted the VM and connected to the server to find that he does not see the new drive, or he does not see the new size increases for other readers. I rebooted the host and yet, nothing new.

  What have I done wrong? Why these changes are not recognized by the virtual machine?

  After the increase in the size of disk or adding new disks, you must go the the VM Windows disk management and resize or format/partition/boot disks.

  André

• Problem adding ISCSI LUN to a virtual server ESXi 4.1

  Hi guys,.

  Having a really weird problem.
  
  Scenario-
  I have 2 x ESXi 4.1 (call B and C) running as virtual machines inside an another ESXi 4.1 host (let's call this has). Why this is because it is a test lab and I have limited the number of available servers.

  Problem-

  The problem I have is that the LUNS that I create on my HP P4000 VSA SAN do not appear on B & C. However, they go to the a. I consulted HP and confirm that IQN Intiators ISCSI for B and C numbers are attributed to the specific LUN. HP confirmed that it there is nothing wrong with my config and told me it's a question of VMWARE.

  
  A little more detailed look at the problem-
  
  

  1.      B (or C), I enabled ISCSI initiator.

  2. then, I made a dynamic discovery by mentioning my SAN Cluster IP address and he did "LUN ID" in the static discovery tab collection. So far so good.                       

  3. then I rescan all host bus adapters.
  4 I go to storage and to search for new data warehouses/LUN. Nothing is picked up. This is the strange part (the problem)

  Someone suggested to me that since B & C are in fact virtual machines inside an another ESXi, the firewall may block the ISCSI connections. I did some research and found the following information - http://kb.vmware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1026845
  

  "ESXi does not include a firewall, because it runs a limited number of known services and prevents the addition of other services.

  With such restrictions, the factors that necessitate a firewall are significantly reduced. Therefore, there is no firewall integrated in ESXi.

  For more information, see the Guide of Setup ESXi. »

  5.      
  Note-
  
  1 LUN ISCSI can be added inside A host, with no problems.

  
  2. I have already configured a VMKernel Port inside B & C (image view within B or C networking file is attached). Note that all the vmnic is virtual, since the B machine in question is actually a virtual machine.
  
  Any help with this will be highly appreciated that my project is at a standstill right now!

  2

  I want to say, the mode of promiscious on the vswitch on your physical esx host that is running the virtual methods.

• LUN mapping

  Please someone can it confirm for me.

  Even though I know that you use unique LUN during the mapping of storage to a host of vSphere, can I use the same logic unit number when mapping to different targets (this is all on iSCSI by the way).

  I mean if I have mapped to storageA LUN0, can I also map to LUN0 in storageB to the same host (integer the same HBA)

  Yes, you can safely

  Follow the guide with more information

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

• SAN LUN mapping

  Hi all

  Just a quick question, in are environment we use ESX 4.0 Update 2. We use a SAN that is connected through fibre channel. I want to know it's possible map SAN LUNS directly to a virtual machine?

  You can do this with NPIV, where your virtual machines get there own virtual fiber HBA and WWN adapters and you then use your San to map LUNS to these WWN. Your esx host must be able to see the SAN for this to work and there are a few prerequisites more.

  Scott Lowe has a good article here: http://blog.scottlowe.org/2009/11/27/understanding-npiv-and-npv/

  and also the configuration of VMware SAN guide.

  Hope this helps,

  Dan

• Increase in the size of a LUN mapped Raw

  I need to increase the size of a mapped LUN Raw that I connected to one of our servers. I'm unable to increase the size of it on the Hardware tab in the properties of the VM because there aren't any options there to do this, in contrast to the virtual disks. The only information about it is that it is in physical compatibility mode.

  Pointers would be appreciated.

  Hello.

  You will need to do this on the side of SAN storage, using its software.  Once the disc has been increased in size, you can use the native OS utilities (such as diskpart in Windows) to spread the disk inside the VM.

  Good luck!