LUN mapping question

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.

• LUN mapping - duplicate Monday in ESXi

  Hello

  We have NetApp array with iSCSI to ESXi 5.0u1 servers.

  I'm trying to see if I can identify the iSCSI devices presented to the server ESXi as LUNS created on NetApp. So far, I was under the impression that this mapping must be one for our Installer, but this doesn't seem to be a case:

  That's what I see in the list of devices on the ESXi server. As you can see, the Monday is the same, but the size is different.

  

  Table of NetApp, a single LUN with LUN ID 4 (with 64 GB size) is presented. First initiator group is not used.

  

  This means that ESXi server MONDAY mapping is out of sync with NetApp table?

  How would I be able to identify the LUNs then - I thought that Monday would be a unique identifier, but now I'm at a loss.

  We use RDM in virtual mode, if it allows to specify the configuration.

  Thank you!

  The two LUNS have IDS unique naa. This makes the host thinks that those who are in fact different SCSI devices.

  One of your LUN has a duration of vmhba40:C0 name:T0: L4 while the other has vmhba40:C0:T1: L4, they are behind different targets.

  I would first of all check the initiator groups who have included concerned host iqn and check the unit number logic on NetApp, looking for a 8 GB LUN mapped to one of these groups.

  If you have integrated with vCenter VSC, you maybe more comfortable for the task above (I wish :))

  To ensure that you are on the right at a given time (i.e. before removing the LUN mapping or the number of unit logic itself, in which case you think, it is necessary), you may need to compare the serial number LUN with NAA ID reported by ESXi.

  The only way I have found so far is NetApp CLI: lun - x series

  This returns the serial number hexagonal LUN that actually fits NAA ID seen by the host. The drawback here is that you must specify a path for each LUN to check which can be a considerable effort if you have 100 LUNS to check.

  If anyone here knows better, please share!

  WBR

  Imants

• 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

• 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.

• 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.

• 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

• Based on the IOS VPN Lan-to-Lan (NAT and route map Questions)

  Hello world

  I worked on my review of CCNA security and I have a question about this stage

  LAN1 192.168.0.0/24---(routeur HQ)--10.10.10.0/30--(INTERNET)--20.20.20.0/30--(routeur Branch) - LAN2 192.168.1.0/24

  I use 10.10.10.0/30 and 20.20.20.0/30 networks assuming that these are public addresses (is just a laboratory).

  I read that if I want to make the VPN tunnel while I using NAT I must exclude valuable traffic from the NAT process so I look on the database of cisco for more help and I found this (look at the 3660 router configuration):

  http://www.Cisco.com/en/us/products/ps6120/products_configuration_example09186a008045a2d2.shtml#T1

  so, I applied this config for my routers, so the config is:

  IP nat inside source map route sheep interface fastEthernet0/1

  access list 110 deny ip 192.168.0.0. 0.0.0.255 192.168.1.0 0.0.0.255

  access list 119 permit ip 192.168.0.0. 0.0.0.255 any

  sheep allowed 10 route map

  corresponds to the IP 110

  I didn't really understand who is using the command route-map here, so I made this configuration:

  IP nat inside list sheep interface FastEthernet0/1

  sheep extended IP access list

  deny ip 192.168.0.0 0.0.0.255 192.168.1.0 0.0.0.255

  Licensing ip 192.168.0.0 0.0.0.255 any

  Two of them worked I could translate my LAN addresses to the public to address internet and also could establish the VPN tunnel. So my questions are:

  1. What is the purpose of the road-map command?

  2. What is the difference between these two configuration?

  3. which one I should use and in what cases?

  Thanks in advance

  Jose

  Jose,

  Very good questions and in fact no need to the road map it.

  Personally, I like using course maps because it allows much more flexibility than simply ACL setup, but in order to bypass the NAT source IPs, there is no need of route-maps and you can do this with the ACL directly.

  I personally always use road-maps just because I can (route-maps are cool) haha

  Route-maps are very useful in other scenarios where you need to put more of conditions or factors.

  Remember that it is almost always more than one method to accomplish a task... which is one of those cases.

  It will be useful.

  Federico.

• ISCSi LUN Vmware question

  I have two luins iscsi for vmware build hook etc. up to an emc celerra server.

  question-

  If I extend the iscsi on celerra lun in vmware puts it auto-mattically updated space iscsi LUN or is there more steps involved.

  Hello.

  There are more steps involved, after performing the operations on the Celerra.

  Use http://kb.vmware.com/kb/1752 as your starting point.

  Good luck!

• 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

• 10.2 OWB mapping question

  Hi friends,

  Im working on the 10.2.0.5 owb. I made a sample mapping as below

  Step 1: Created a source module giving him the location as a data source and import the following from the 11g database table

  per_all_assignments_f

  per_all_people_F

  hr_all_organization_units

  Step 2: Created a target such as a data warehouse module by giving my g 10 db Details of the venue and started to create a dimension.

  Step 3: Created the mapping in the target module by dragging the source tables and a dimension of the source and the target module.

  Step 4: Deployment sequence, table, dimension successfully in the control center. When I tried to deploy the mapping of a pop-up window will appear with the details of the source of my 11g database, once I entered the password and shortly after pressing the ok button, I got a message like

  RTC-pair of type Location 5318:Invalid for the name Oracle database and version 11.1

  Im not sure with the light of the foregoing, which runs all through the mapping. Given that I created and saved to the location of the source of my 11 g database. But then too why owb returns error as source location is not. Therefore, I can see my source location in the Explorer of the connection.

  If this problem occurs because I imported the source table of the database 11g as the owb that im using is 10 g. ??

  Kindly help me with this question friends.

  Brgds,

  Mini

  Hi guys,.

  Error is resolved as recommended in article

  Pair of Type RTC-5318 invalid location when you save an OWB 11.1 location [ID 960825.1]

  Thanks for your point of view.

  Brgds,

  Mini

• Map question

  Hi all
  
  I use JDeveloper 11.1.2.3.0
  
  I use the dvt:map component that connect to the server mapviewer
  
  I have one question: How to hide planisphere (small window at the bottom right of the main map)?
  
  Thank you

  http://docs.Oracle.com/CD/E16764_01/apirefs.1111/e12418/tagdoc/dvt_map.html#overview

• 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'*.

• 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!