Having dead path to the iSCSI target

Similar Questions

• Could not see the iSCSI target in the adapters iSCSI software under Configuration details page

  Detailed description:

  After you add the IP address of the iSCSI target in the target iSCSI dynamic discovery Tab names can be seen under static discovery. But, iSCSI target is not considered as adapters iSCSI software tab Configuration details page.

  This iSCSi target is already mounted as a data store VMFS5 with some VMS on an another ESX which is part of the different ESX cluster in the same center of work data.

  thinking the im network configuration

  You vm kernel ports configured correctly?

  you use VLAN? If so see if your config of vlan is correct

• Best practices the iSCSI target LUN

  I connect to my ESX laboratory to a QNAP iSCSI target and wonder what best practices to create LUNS on the target. I have two servers each connection to its own target. Do I create a LUN for each virtual machine, I intend to create in the laboratory, or is it better to create a LUN of the largest and have multiple VMs per LUN? Place several virtual machines on a LUN has concequenses HA or FA?

  Concerning

  It is always a compromise...

  ISCSI reservations are per LUN.    If you get many guests on the same logical unit number, it becomes a problem and Yes we saw it.

  Slim sure to layout.   This way you can make your smaller LUN and still get several s VM we each their.

• Unable to see the iSCSI target

  Hello

  I just configured an Openfiler area supposed to be some storage additional iSCSI for backup of the virtual computer.

  The target seems to be configured fine that I am able to connect to storage successfully from a machine of W2K3.

  However when I try a scan of the host ESX 3.02 they fail to find the storage.

  I entered the details contained in the dynamic discovery, the service console is in the same subnet and I opened the necessary firewall port.

  Our main storage is a SAN DS3400 of fiber and they use LUNS 0 & 1

  When I try to map a LUN to the target in Openfiler he tries to use LUN 0, this could be the cause, or am I missing something else?

  Any help would be appreciated

  What you added is good news: vSwitch0 1) speaks through a NIC team, and 2) vSwitch0 only SC and VMotion only: you can go ahead, put your Openfiler box on your network admin/VMotion. If your vmkping did not before, I guess it's because the VMotion IP subnet field is different from the ordinary SC subnet IP field, right? If so, adds an extra port SC vSwitch0 in VMotion, to get the subnet of the ping responses and vmkping in the table. Otherwise, if the VMotion network, it's the same as SC network, so I don't understand why your old vmkpings didn't work. Well... This solution is simple, but what I don't like in it, it's that time VMotion traffic and iSCSI will use the same physical link because you don't have a single vmkernel port, that is too bad, when you have 2 physical links. You would think something even more intelligent. The idea would be to force the VMotion traffic to run priority through a vmnic and iSCSI traffic running through the other, each vmnic being the road to recovery on the other.

  To achieve this, at first glance, I would say that should you be the Openfiler box on a subnet dedicated Y. Then, on vSwitch0, create 1 SC port and port 1 vmkernel having both a subnet address Y. Then play with team vSwitch0 NIC settings, the idea would be to configure ports VMK and SC on the subnet Y with an explicit failover of vmnic0 command then vmnic1, and then configure the port VMotion and the SC current port with also an explicit failover command, but with an order of vmnic1 then vmnic0 (i.e., the opposite direction). In this way, iSCSI through vmnic0, VMotion, through vmnic1, and even if there is some VMotion overnight, everyone will not work correctly. And if a vmnic fails, it will suffer a degraded mode, both using the same link, but it will be temporary... The limitation of this solution will potentially come from your physical network architecture: your physical switches will allow all these subnets routed properly through these 2 vmnic? May be that VLAN would help...

  Let me know how it goes!

  Kind regards

  Pascal.

• ESXi 4 installed on the iSCSI target

  Hello

  I'm looking using an IBM 3650 M2 series with external DS3300 iSCSI storage using a Qlogic Single-Port PCIe HBA iSCSI for system IBM 3650 x series and ESx4i installation as the hypervisor

  I noticed that initiating equipment thePCI WHAT HBAS is supported.

  My question is can I install ESX4i on storage that presents the target iSCSI on the server?

  Thank you

  Ml «»

  ?:|

  Hello.

  "You use the CD of ESXi 4.0 to install ESXi 4.0 on a hard drive, SAS, SATA, or SCSI software.

  Installation on a Fibre Channel SAN network is supported experimentally. Do not try to install ESXi with a fixed SAN, unless you want to try this experimental feature.

  Install the IP storage, such as NAS or iSCSI SAN, is not supported. "- p.22 of the ESXi Installable and vCenter Server Installation Guide

  Good luck!

• iSCSI target

  can we use USB HDD for the iscsi target?

  Hello Manu,

  1. which Windows operating system you are using on the computer?

  2. are you connected to a domain?

  Please provide more information to help you best.

  Suggestions for a question on the help forums

  http://support.Microsoft.com/kb/555375

• Kickstart install the iscsi disk not found

  I can't get my order of kickstart to install the iscsi disk.

  the line

  install - firstdisk = distance does not sutable found records

  I also tried

  Installer--disk=/vmfs/devices/disks/EUI.XXXXXXXXXXXXXXXXXXXXXXXXX

  install - disk = mpx.vmhba32:C0:T0:L0

  None of them sees the iscsi drive

  But if I run the Setup manually, I don't see the iscsi drive.

  any idea?

  I think that I understand it. In cisco ucs, I had to change my font of startup and add iscsi as secondary targets.

  the policy must be

  1 LAN

  2. the ISCSI targets

  The kickstart file can always use install - firstdisk

• ISCSI Target VM address RDM?

  I have 300 GB local disks on some of my hosts connected to our SAN.  I would like to take advantage of this local space for models and ISO files.  I intend to install the iSCSI Target Framework (tgt).  My question is...

  If this CentOS VM that turns our iSCSI Target just plug the local disks on VMFS or should I try to present the local disk as a RDM (Raw Device Mapping).

  Since the machine will use local disks, vMotion and anything that is out of the question anyway, so I think this could be a good situation for the use of RDM.

  Hello.

  If this CentOS VM that turns our iSCSI Target just plug the local disks on VMFS or should I try to present the local disk as a RDM (Raw Device Mapping).

  I would use VMFS for this. You will have more flexibility with VMFS and RDM the local approach seems to add unnecessary complexity.

  Good luck!

• Removed VMFS3 iSCSI target volume - I'm screwed?

  Hello. I "tried" to move virtual machines between servers and the San. On a single server, ESXi 3.5, I 'got' a VMFS volume on a target iSCSI on a basic SAN device.

  The volume "was" listed in the configuration of the server/storage tab. I removed thinking it would be just to delete the reference to the volume from the point of view of the host, but he seems to have deleted the iSCSI target volume.

  Is this correct - is my missing volume? If I'm screwed? Is there anyway to recover the volume?

  Any help or advice would be really appreciated. Thanks in advance.

  We must thank Edward Haletky, not me

  In the VMware communities, his nickname is Texiwill.

  André

• Excerpt from the path of device iSCSI in a list

  Hello

  Can someone please help on how to extract a name of a particular device (for example, a path of the device that contains the string "clone") of a software iSCSI storage card. Here is the script that I found in the internet that retrieves the device attached to the HBA for iSCSI, but I'm having a hard time creating the logic.

  $esxImpl = Get-VMHost -Name

  $storImpl = Get VMHostStorage -$vmhost $esxImpl

  stor = get-view $storImpl. ID

  F oreach ($adapter in $stor. StorageDeviceInfo . ScsiTopology . Adapter) {

    foreach($target in $adapter. Target) {

    $nimblevolname = $target. Transport . IScsiName

  Write-Host $nimblevolname

  Write-Host $nimblevolname | where {$_. $nimblevolname - like ' * clone "" "}

  }

  }

  Thank you.

  With a Where clause, you should be able to do it like this

  $esxImpl = get-VMHost-name MyEsx

  $storImpl = get-VMHostStorage - VMHost $esxImpl

  $stor = get-view-Id $storImpl.ID

  Foreach ($adapter in $stor. StorageDeviceInfo.ScsiTopology.Adapter) {}

  {foreach ($target in $adapter.target)}

  $target. Transport | where {$_.} Nomiscsi-match 'clone'} | Select IScsiName

  }

  }

• Session INFO iscsi target - has been closed - sign-out request received from the initatior

  today all of a sudden equallogic Group Manager of its getting flooded

  target iSCSI session - was closed - sign-out request received from the initatior

  target iSCSI session - was closed – iscsi inittator connection fauilure
  no response on the connection for 6 seconds

  been trying to figure out what has changed since yesterday, nothing has changed

  the Member of 4100 not showing this info, all connected to the 6100 Member?

  side esxi 5.5 its projection lost way, restoration of path error messages

  clues

  Hello Dan,.

  This first message is normal, because this is a message of level INFO, not WARN or ERROR.  It only means that a connection has been disconnected so that it can be moved to another port in the group.   I suspect that you run MEM?   Who's going to move, start, stop to need iSCSI sessions to hold the input/output symmetrical on the ports available on the berries.

  ESXi 5.x will always report any kind of connection as an error problem.  Even when he is projected as here.  EQL uses a mandatory iSCSI command under the title "async logout" say disconnect the iSCSI initiator then go to discovery and connect immediately.  However, this time it will be moved to another port on a table.   MEM regularly consults the current connections and may decide to change the layout of the connection.

  The 6100 is probably the head of the group.  So it stores and displays all messages from all members of the group.  Buried in the text it can show you that some are from the 4100.

  The other message on the "6 sec timeout" is different.  This means that, during this period, the table failed this server.  Periodically, initiator and Exchange EQL keep packages of persistent delay.  (KATO for short).   This is so that the two are always answer.  If it fails repeatedly, this message appears and the connection is complete.  Once the initiator (server) is back, he will open a new iSCSI session to replace.   You see this message when you restart a server, or there are problems with the network.

  If you are really interested, you can open a case of pension with Dell.  Please gather the diags table (all members), config switch logs, and supports the VM node ESXi.   They can check this info and verity that the configuration is OK.    They can examine the nodes ESXI to ensure they are in compliance with the best practices with Dell's best practices.   There is a Tech report.   TR1091 that covers this.

  You can find a copy here.

  en.Community.Dell.com/.../Download

  Many problems have been resolved by choosing ESXi for current construction, set up in accordance with this document and Sunrise switches to spec as well.

  Make sure also that the EQL table running 6.0.7 or later.  Running current firmware is much better.  Earlier than 6.0.7 saw potential for corruption VMFS Datastore.  Therefore, it is very important to keep up-to-date.

  Kind regards

  Don

• 'Incorrect function' during the initialization of an iSCSI target

  I have problems when you try to create a partition of 3.7 TB on Windows Server 2008 R2.

  

  I get the following error message when I try to initialize an iscsi target:

  

  What I am doing wrong.  The target is not part of a cluster.

  

  What I am doing wrong? I tried initilizating the disk with MBR and GPT time partitions and all do the same thing.

  Have you installed the software on the server (at least the host software) and establish connections iSCSI on two raid controllers? Looks like that may connect you to a controller, but the virtual disk is owned by the other controller.

• How to change the name of a volume iSCSI target?

  How the name of a volume iSCSI target can be changed?  I created a volume with a typo in a letter.   The volume production data on it now so I can not just it delete and recreate the problem.   It's not a big deal, but it doesn't look good either.

  It's on a PS6100.   When I go into the properties of the Volume in the advance tab I can see the iSCSI name, but cannot change it.  All I change is the public alias.  But it does no good that the name appears in the vCenter with the misspelled name.

  So how can I change the iSCSI name?

  Or am I stuck creating a new volume and telling them to migrate their data for spelling can be fixed?

  See you soon

  Part of the iSCSI specification is that target names must be unique.  Therefore, once created, you cannot change the name of the volume.

  Kind regards

• 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.

  I'm obviously missing something, I just can't understand what it is.

  Any help would be greatly appreciated!

  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.

  To avoid trampling of the ESXi put a lock on the VMDK so that a subsequent host will not be able to power of the virtual machine and write than disj virtuak

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