Assistant can't see iSCSI SAN software

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  shalinnathan143,

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  I have set up a virtual machine with two vmxnet eth adpt 3. a tip to the network and the other to point to my storage.  Having a problem to see my iscsi storage. I see only an address in the ip observed range and sound of my Vcenter server that has an ip of my config suggestions SAN management.

  You must create a portgroup VM for iSCSI network on the vSwitch where physical right iSCSI network is connected.

  Use the same network address, then try to do some testing with ping (for example).

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  Dave

  This is my golden rule.

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  16 VMDK files per VMFS datastore maximum.

  * A VMFS volume per LUN storage.

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• How can I move virtual machines from a local data store for a new iSCSI SAN?

  Hello guys,.

  Now that we have a new iSCSI SAN market how can I tranfer all the virtual machine to a local data store for a new SAN? Can I stop the VM in the host, and then copy the DataStore files with all the info on the new volume?

  Thank you

  Pesinet

  Alternatively, you can use VMware converter or cold Migration / Storage VMotion if you have the appropriate licenses.

  Duncan

  VMware communities user moderator | VCP | VCDX

  -

• Impossible to mount simultaneously multiple targets since a single iSCSI SAN iSCSI

  Hi guys,.

  I recently deployed FreeNAS 8.0.3 as a practice laboratory iSCSI SAN on one of my HP Proliant microservers.  The first target is a measure of physical disk since it was noted that the drive is faster than file extensions.  I have install the Initiator Software for dynamic and found discovery.  I built on that vCenter.  It was pretty slow going to see that it is also on a 100 MB network.  I decided to buy a gigabit switch and a 240 GB SSD.  I added the SSD as another target.  However, I can't get two data warehouses at the same time.  Am I missing something?  The two are listed under iSCSI Software Initiator...

  Connected targets: 2

  Features: 1

  Paths: 2

  When I'm actually in the paths, I see two targets, but only one can be Active (e/s) and the other is active.  To switch between data warehouses, I had to disable the currently active (e/s) an and the reactivate to failover to the other.  I wish that both target mounted at the same time.  How can I do this?  Thanks for any help.

  Mark

  My apologies in advance if I'm wrong understand something in the description of the problem, but it seems that you have only 1 "" meaning a block at the level of the device (iscsi) LUNS presented through two separate iscsi (two separate cobinations iqn/IP) targets. You can't have a VMFS in LUN data store so I am bit confused with your statement "I can't climb the two warehouses of data at the same time"...

  Peter D

• question of iSCSI san

  Hello everyone,

  I just created my first with software e open iscsi san solution.

  My situation: on the local disk, I put my VM

  I created 4 iscsi data warehouses

  1 will be used to back up my VM and can be reached for Vsphere

  The other 3 serve as a backup for my 3 VMS solution. I am connected to them through the Iscsi initiator in the virtual machine, format them, and now they appear as an additional drive in the virtual machine. I can see them in Vsphere but is no longer in data warehouses, but in devices (because they are formatted as NTFS)

  Now the question:

  Is it possible to see what data is on data warehouses that are formatted to ntfs When you are not connected to the virtual computer?

  When a virtual machine should crash, backupped data should always be saved to disk iscsi, but where can I get it?

  Thanks in advance, onkt

  NTFS is only accessible via windows server only. You can mount the iSCSI drive backup on another virtual computer.

• ESXi 3.5 4 problem to upgrade by adding the VMFS partition existing on iSCSI SAN

  Hi all

  I've got 2 x Dell PowerEdge 2950 III linked directly with Dell MD3000i iSCSI-SAN and today I had once hard to improve my production ESXi 3.5 u 4 ESXi 4.0,.

  First is that the upgrade is failed miserably after following this thread: url = http://communities.vmware.com/thread/211413;jsessionid=47217F9BCCA2DF1325DBE7A266D48A8D?tstart=0VMware communities: error on upgrade the host: this host is not compatible with this upgrade. [url]

  with the following error message: ERROR: unsupported boot disk

  The layout of boot device on the host computer does not support the upgrade.

  That's why I did a clean reinstall of ESXi 4 on top of ESXi 3.5 u 4 and lost all unique settings on my ESXi host. I am now stuck in SAN iSCSI partition mapping after following the guide from: http://support.dell.com/support/edocs/software/eslvmwre/AdditionalDocs/cnfigrtnguide/storage_guide.pdf [/ URL]

  See the following attachment.

  I wonder how people make their upgrade in ESXi 4.0 in the production system running ESXi 3.5 u 4 filled with hundreds of VM? The reason why I use 2 x ESXi server connected to unique SAN server, is that I can just start the virtual machine on the SAN from the other ESXi - & gt; that's fine and tested, but then when I rebuild the failed server, I need to delete all the data inside the shared partition that contains my VMs.

  So in conclusion after one of the ESXi server failed, mapping of iSCSI would eventually destroy all data in the partition?

  CMIIW, any idea and suggestion would be gladly appreciated

  Kind regards

  AWT

  The configuration-> tab cards storage, you should be able to recrawl and find existing VMFS volumes.  You shouldn't need to add storage.

  Andy

• How to get iSCSI SAN connected to ESX when the SAN is on a different subnet?

  Hi all

  I have two machines ESX which are directly connected to a San that are on a different subnet other network cards.  Other network cards are 10.x.x.x and the SAN is on 172.16.x.x, however whenever I try to add the iSCSI storage, the system will never find the LUN.  I put the vmkernel 172.16.x.x but it does not always find them.  I know that the LUNS are configured correctly if its ESX just having problems with the other subnet.

  You need to activate the Service Console to see the iSCSI SAN, too. This is because you use the initiator software. For example, you can add a second SC in the vSwitch that your VMKernel Port is connected and align on the same subnet.

  Kind regards

  Gerrit Lehr

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

• How to boost the performance of iSCSI SAN

  People,

  I'm testing below the solution with provided hardware / software Details and I don't get maximum output according to what I'm supposed to get.

  I tried everything and read all the manuals and the recommendation that offers VMware but still no lock...

  Multipathing helped and I was able to acquire 150 MB for all, but a single virtual machine acquires a fraction of it. I tried up to 4 paths, and there was no additional benefit beyond 2!

  Any suggestions would be very boiled so highly appreciated.

  ==========================

  iSCSI target :

  24 GB DDR3 RAM DUAL XENON QC E5620 2.4 GHZ

  7 x SSD in RAID 5

  RAID controller:

  LSI MegaRAID SAS 9280-24i4e

  BBU RAID is installed.

  iSCSI target software: open-e DSS V6,.

  HOST:

  96 GB DDR3 RAM Dual XEON X 5660 2.8 GHZ

  ISCSI initiator Software is the integrated VMware one.

  MTU has 9000 for all.

  ===========================

  Concerning

  Edward

  Hello

  Get a throughput with iperf does not mean that your network is not a bottleneck.

  For example, flow control can have a huge improvement on throughput of SAN, without touching all-time iperf.

  There is not much to go wrong with VMkernel that slow iSCSI, unless you go to paths multiple questions.

  Specific parameters of Multipathing can have a significant impact on the flow - I would like to ask what a summer your recommended ATAS and PSP and if RR IOPS are relevant, but which amounts to determine if your San is actually a taken SAN supported.

• ESXi 4.1 or ESXi 5.0 with iSCSI SAN

  Hello

  I'm trying to establishing an environment that is / will be an iSCSI SAN backend entirely.  I know of a lot of reading that the best practice is to config the ESXi host with:

  VMKernel > vmnic > physical network adapter > switch ports > port on SAN (config 1:1 - no grouping of vmnic)

  Environment:

  ESXi 4.1 & 5.0

  Force10 switches

  EqualLogic iSCSI SAN (PS4000 & 6000)

  Here's my real question (playing the Devil's advocate):

  Why I shouldn't team 3-4 vnmics on a vswitch with multiple vmkernel ports?

  Given my environment.  Can someone point me to a technical document that explains what will / could happen if I set up the environment ESXi in this way?

  Thank you

  BDAboy22

  So, basically, we want the SAN to take full responsibility for the failover instead of the network and/or the SAN for who should resolve the failure (which could lead to the time of restitutio in integrum longer session).   I understand that correctly?

  Yes, that's right, we want to stack storage for vSphere manage with path selection and tipping - and by connecting each vmknic directly to the physical vmnic map we sort of "simulate" how to CF cards and also ignores the network failover mechanisms. As you probably know you also need to "bind" the iSCSI Software to the two vmnic (GUI now in 5.0, esxcli in 4.x)

• ProLiant BL460c G7 iSCSI SAN boot

  Hello
  I'm looking to start a single ProLiant BL460c G7 of our HDS iSCSI SAN and then install ESXi 5. The blade has no local storage. The SAN is already in use by the cluster of our production.  In the iSCSI SAN config guide it States to set up storage so your host has access LUNS. How can you do this if your host is not installed? How can I configure the LUN to only be accesed by my hosts IQN name when I don't have an IQN name yet? What I must first install ESXi? I'm obviously missing something any help would be great!

  This is true, for this, but as your correctly point out if the OS is not installed how do you have a software iSCSI initiator - boot from an iSCSI SAN is supported only if you have an initiator of independent hardware installed in your ESXi host.

• iSCSI SAN Connectivity

  I'm kinda new to this Yes, you can be sweet.

  We are migrating some of our less critical servers to VSphere. Because the servers are at camp, we'll install eSXI on our server and use hosted camp via iSCSI SAN. The camp provided us with a block of IP addresses that we can use for SAN connectivity.
  SAN connectivity is on it's own dedicated NIC (1 for testing purposes) and physical switch.
  Management network
  192.168.72/24
  SAN IP blocked
  172.26.11.0/26
  172.26.11.1 - GW
  The target IPs
  172.31.3.105
  172.31.3.109
  I created a virtual switch for iSCSI and tied a physical NETWORK adapter to it. I then added the iSCSI adapter software, responsible for the target in the dynamic, linked discovery the NIC to the iSCSI Software card.
  I then added a road 172.31.3.0/24 to go to 172.26.11.1.
  When I scan for the storage of the new, I just blank. If I go back into the adapter software, targets are now listed on the static discovery tab. The camp is saying that their HDS does not all applications.
  So I built a virtual Windows machine and loaded on this host (using an Openfiler iSCSI on the management network) and installed the Microsoft iSCSI initiator. By using this software, I am able to connect to the SAN CoLo network from inside the virtual machine.
  What Miss me? Why can I not connect to the network the host SAN? Any help will be much appreciated.
  Bob

  http://pubs.VMware.com/vSphere-50/topic/com.VMware.vSphere.storage.doc_50/GUID-0D31125F-DC9D-475B-BC3D-A3E131251642.html

  (Physical network adapters must be on the same subnet as the iSCSI storage system, that they connect)

  / Rubeck