ID mapping session Iscsi MPIO path

Similar Questions

• iSCSI MPIO (Multipath) with Nexus 1000v

  Anyone out there have iSCSI MPIO successfully with Nexus 1000v? I followed the Cisco's Guide to the best of my knowledge and I tried a number of other configurations without success - vSphere always displays the same number of paths as it shows the targets.

  The Cisco document reads as follows:

  Before you begin the procedures in this section, you must know or follow these steps.

  •You have already configured the host with the channel with a port that includes two or more physical network cards.

  •You have already created the VMware kernel NIC to access the external SAN storage.

  •A Vmware Kernel NIC can be pinned or assigned to a physical network card.

  •A physical NETWORK card may have several cards pinned VMware core network or assigned.

  That means 'a core of Vmware NIC can be pinned or assigned to a physical NIC' average regarding the Nexus 1000v? I know how to pin a physical NIC with vDS standard, but how does it work with 1000v? The only thing associated with "pin" I could find inside 1000v was with port channel subgroups. I tried to create a channel of port with manuals subgroups, assigning values of sub-sub-group-id for each uplink, then assign an id pinned to my two VMkernel port profiles (and directly to ports vEthernet as well). But that doesn't seem to work for me

  I can ping both the iSCSI ports VMkernel from the switch upstream and inside the VSM, so I know Layer 3 connectivity is here. A strange thing, however, is that I see only one of the two addresses MAC VMkernel related on the switch upstream. Both addresses show depending on the inside of the VSM.

  What I'm missing here?

  Just to close the loop in case someone stumbles across this thread.

  In fact, it is a bug on the Cisco Nexus 1000v. The bug is only relevant to the ESX host that have been fixed in 4.0u2 (and now 4.1). Around short term work is again rev to 4.0u1. Medium-term correction will be integrated into a maintenance for the Nexus 1000V version.

  Our implementation of code to get the multipath iSCSI news was bad but allowed in 4.0U1. 4.0U2 no longer our poor implementation.

  For iSCSI multipath and N1KV remain 4.0U1 until we have a version of maintenance for the Nexus 1000V

• iSCSI MPIO + Jumbos

  I see lots of information about iSCSI MPIO and Jumbo support with iSCSI sw in vSphere 4.0. I see not a lot of information of the HBA iSCSI and MPIO + Jumbo support. Am I missing something? The HBA have access to the same improvements?

  Thank you

  HBAS are already supported these features in ESX 3.5.

  And multipath also exist in ESX 3.x.

  The 'new' storage module also accepts NEW 3rd party modules (only the Enterprise Plus edition) have native multichemin of the seller.

  Right now there's EMC PowerPath/VE modules products (I suppose that could also be used for iSCSI) and a beta version of Dell Equallogic MPIO.

  By Jumbo Frame, now vSphere supported also for iSCSI and NFS software, so you can activate and use it.

  Also the map of 10 GB are now supported.

  André

• Insert adds parallel sessions expect "direct path read temp".

  Hi all.
  
  The database is 11.2.0.3 on a linux machine.
  
  I published the following query, and I found that parallel query sessions were waiting for "direct path read temp.
  
  And SDPCSM. Table SDP_CHILD_SVC_PROFATTR_HIS does NOT index and is in nologging mode.
  
  Why the pq sessions expect "direct path read/write temp?
  

  insert /*+ append parallel (8) */ into SDPCSM.SDP_CHILD_SVC_PROFATTR_HIS
  select /*+ parallel (SDP_CHILD_SVC_PROFATTR_HIS_E, 8) */ * from SDPCSM.SDP_CHILD_SVC_PROFATTR_HIS_E@tb_link;

  Thanks in advance.
  Best regards.

  Please check this blog:
  http://www.Confio.com/blog/Oracle-wait-event-explained-direct-path-read-temp

• Replacing the forms and file reports on LIKE, mapped session user error

  Hi all
  
  We have an ERP that runs on the environment of the OAS when the user are saved in and administrator wants to replace any file form or reports. Do not ALLOW to replace file and give the message of session mapped user while in the client/server environment, we did the same thing. For this update, we must stop shape services or kill user session, and then replace the file.
  Other methods ppl you suggest without downing shape services.
  
  Rashid

  For Forms services, you can add the following setting in your default.env.

  Add a new line:
  FORMS_MMAP = FALSE
  The above allows you to compile a fmx, while the form runs.

  However, take a look this: http://orafrm.blogspot.com/2007/07/formsmmap.html

• Link to maps software iSCSI NIC vmkernal and the vsphere client

  Hello

  IM playing with our VMware 4.1 hosts a Dell Equallogic PS4000E, connection

  So far, I have:

  Created ports VMkernal

  Apply adapters

  The iSCSI initiator enabled

  But apparently, I need to run the following command to bind the ports of iscsi software adapter:

  Add an esxcli swisscsi nic - n vmk # vmhba d #.

  Is anyway in the Vsphere Client?

  Hello.

  Unfortunately, there is no way to do it from the vSphere client.

  Good luck!

• find the number of map software iscsi vmhba

  Hi, im trying to write scripts for automation but I find on different server models the software iscsi adapter varies from vmhba32 to vmhba39

  Is it possible that I can find that number using powercli so I can put it as a variable to be used for another command later in the script?

  Thank you

  Forget the bug with iscsi.

  It's the derivation

  $esxName = 
  (Get-VmHost $esxName).StorageInfo.ExtensionData.StorageDeviceInfo.HostBusAdapter | where {$_.Model -like "iSCSI Software Adapter" -and $_.Status -notlike "unbound"} | Select Device
  

  ____________

  Blog: LucD notes

  Twitter: lucd22

• MPIO - iscsi - ARE links/Ops / s

  Am I correct in saying get;

  iSCSI MPIO will not increase your IOPS / s for a given machine, unless your ethernet connection is saturated?

  MPIO does not increase performance per say, but give you a "big pipe" for several virtual machines on?

  My scavaging on the net I find there are TWO ways to enable MPIO for you.

  (1) Add second Teddy (physical nic), assign the nic to your switch. Create a second VMkernal, substitute blanace loading options and set an active nic by vmk. Add the two vmk to the iscsi HBA, enable repetition alternate on the management of the paths to the data store. Shows that I have two paths.

  or

  (2) add the second bear to switch, allow the two bears will use the unique vmk. storage system, create two targets that map to the same LUN. Shows two paths.

  Does it matter which way MPIO is configured as it shows several paths?

  Out of curiosity I configured esxi using the first way to configure MPIO, then created a second target with the same number of LUN on the storage. ESXi shows that I have 4 paths to storage. A path is a link right? so 4 paths would be unnecessary, at least that I had 4 links and very high demand?

  I read that it takes about 14 000 iops to saturate a gigabit link. Does this mean that since my storage system cannot achieve worldwide real scenerio MPIO is a waste of time?

  Thank you to everyone who takes the time to communicate with me!

  You are confused of serveral things in your argument.

  Let's first start IOPS / s. To make an e/s of the mechanical components are involved on a disk and the number of IOs can run a disc is therefore very limited.

  For this example lets assume that a disk can do 100 IOs (some less, some more do) and that you have 10 disks at hand. This means that your storage hardware can make 1000 IOPS / s. If you invest in a storage Bay real intelligence of implementing adding caching and controller you can get you more out of your drives as long your load is a good target for caching, but I don't know this option.

  How to tie up your storage space (FC, iSCSI,) at an ESX Server direct changes nothing on the number of the IOPS / s your disks can do a lot.

  However, it influences the bandwidth you can achieve.

  Suppose that your consumption of storage is a WIndows NTFS machine. NTFS uses a typical 4 K block size. That calculates to a maximum block size of 4 K x 1000 = 4 MB bandwidth. Which can easily be done on a 100 MB link and you will see this flow if your consumption is doing sequential i/o only.

  Now suppose that your ESX Server has a VMFS formatted with 1 MB (512 GB). While loading fully your 10 discs, you can reach 1 MB x 1000 = 10 GB.

  Again, this is possible if your VMFS was only sequential writing which he did not.

  When you run virtual machines VMs operating system will write to his type of typical files (i.e. 4 K on WIndows) and so the underlying VMFS will buffer a bit in its own cache and access discs in shuffle mode. Thus, you should expect a lot less bandwidth used. It many cases a single gigabit link will not be saturated.

  MPIO is a function which can reach:

  -Path redundancy

  -Additional bandwidth and IOPS / s in some cases

  If MPIO can also add to the number if IOPS / s depends on the type of controller you have on the side storage. If you have a single controller with ports different frontend IOPS gain / s should not be dramatic. With several controllers, indivdual caches and mutual paths to the disks that you can achieve additional IOPS if you get a good cache reference rate.

  How many different ways you can use with MPIO depends on what can make your storage space. What is a passive connection active? Reach you reduncancy but no INCREASE in the Ops / s or bandwidth. Only an active-active array will increase the bandwidth and, possibly, the number of IOPS / s you can achieve.

  With ESX4 you can use up to 8 channels, if it's something your taken storage array supported by parallel controller access.

• ISCSI in VMware guest - slow speed

  SAN is a PS4100 with dedicated switches.

  In VMware, I have a Setup vSwitch according to EQ DELL Documentation. The VMKernal properties are:

  • VLAN ID = None (0)
  • vMotion = unchecked
  • Fault tolerance = unchecked Logging
  • Management traffic = unchecked
  • iSCSI Port Binding = Enabled
  • MTU = 9000

  NIC Teaming settings tab:

  • Load balancing = unchecked
  • Failover detection network = unchecked
  • Notify the switches = unchecked
  • Failback = check = No
  • Failover = checked to Override switch control failover

  One in which adapter is set to Active the other place in is not used. This command is enabled for the second VMKernal iSCSI connection.

  The DELL MPIO extension has been added to the VMware host and the connection is configured to use DELL_PSP_EQL_ROUTED for the managed to the ISCSI target paths.

  Managed paths show also active / active status.

  Flow tests with a physical server through a single initiator iSCSI LUNs dedicated show speeds completely saturate the link with 99 MB/s of throughput. All I can manage to inside the guest OS of Server 2012 with NIC vmxnet3, who is also on the SAN is around 30 MB throughput.

  Drops of speed even more during transfer of a network SAN Fibre Channel AX150 hosted VMware guest OS, with an Intel Pro 1000 MT network card, on the one hand of SAN PS4100, it falls to 13 MB/s.

  What I missed, and where should I look to make changes?

  What I should look to increase flow?

  Hello

  There's not much info here to go. I would like to start by making sure that the server is configured by Dell best practices doc.

  en.Community.Dell.com/.../20434601.aspx

  VMware iSCSI configuration will not affect the speed of connection iSCSI comments.   Ideally, comments iSCSI traffic should have its own NIC, separated from the ESXi NIC use because it is the iSCSI traffic.

  Make sure that the VMware tools is installed as well.  Who will ensure that the network driver is optimized.  Run the current version of ESXi is too important.  There was a few KBs on performance with the VMXNET3 adapter problems.   Sometimes change to the E1000 might better work.

• Cannot add to the inventory if virtual machine running on the other guests - iSCSI and VMFS5

  5.5 ESXi hosts free standalone version

  iSCSI mounts with multiple paths - relatively new unit with more modern hardware

  CHAP not used

  I'm running a few hosts in order to climb the same iSCSI data stores. The iSCSI LUN is visible and editable by all hosts. If Host1 is to map the iSCSI LUN (VMFS5) and a VM is powered, Host2 can add that VM to the inventory. It's possible with NFS iSCSI for a reason any. This is for a specific reason? Only when I turned off the virtual computer can I add it to both hosts. Other that just lock files are placed in the directory, I missed something related to the lock?

  From now on, adding new esxi hosts does not allow me to add existing virtual machine, less than the voltage first. Once again, NFS does, iSCSI, this isn't. Any ideas?

  It is not specific to ISCSI but rather to the use of VMFS. NFS has no awareness VM VMFS is and why it is not possible to do that with iSCSI / VMFS. There is a lock on the disk for each virtual machine of (race), and that's why the second host is not able to add this host to its inventory. With vSphere HA, this lock is released when a failover should occur.

• vSphere 5 and iSCSI LACP

  Hello - this is my first post here so please, be gentle.

  I tried to find information about configuring LACP in vSphere, ESXi 5. Let me give a brief overview of my environment and the objectives that we strive to achieve. We use NICs 1 GB on 6710 VDX Brocade fabric switches.

  We have a small cluster of vSphere, ESXi 5 standard edition. We have 6 physical network interface cards in each host - 2 are associated to the network of the VM, 2 are associated for vMotion/management, and the last two are vmKernal ports one two separate subnets connected using MPIO to our Compellent SAN iSCSI. This has been our test bench and we use the nic teaming in ESXi 5 running "Route based on the originating virtual port ID" with no specific switch-side config. We have other servers only using LACP 802.3ad configured on the host and the switch that work very well - gives us a better failure protection that we use two switches and plug in a link in each switch. We would like to do the same with ESXi hosts.

  Our new project is coming to virtualize a larger number of systems we currently serve. We want to do is expand our use VM to include a large (30 - big for us) number of SQL servers. The basic functions of these systems require a decent amount of e/s SAN backend. The physical servers we would be virtualize emballerions a density close to 4 / 1 or up to 8:1 with this conversion. We are concerned that having just the 2 iSCSI nic MPIO paths will not be sufficient to support the increased load of I/O.

  We would like to know if you are using LACP on the two subnet iSCSI connections and join 2 + NIC for each connection is viable in ESXi 5 and with iSCSI technology and what configuration parameters that we set up to do this.

  In addition, this project would be to use Enterprise Edition VMWare vSphere 5 - DRS or distributed switching introduced other complications or benfits for this configuration?

  Thanks for any helpful input or direction of already published documents.

  Scott

  I find using LACP / etherchannel is rarely effective or useful in VMware environments.

  For iSCSI storage, my standard configuration is to use 2 uplinks with binding of iSCSI ports. Here are the screenshots of the configuration.

  

  

  

• Hyper-V and iSCSI network

  Hello

  We evaluate a migration of vmware for hyperv.

  I try to understand best practices for networks iSCSI comments.

  I have physical 4ports 1GBit dedicated, on the host for iSCSI traffic.

  I like to use all 4 for iSCSI host (vhdx volumes) traffic.

  Now I thought to do 2 of them shared by creating 2 logical switches in VMM, adding 2 virtual network cards for the host to use.

  The new virtual network cards are 10 Gbit. I don't see an option to change them to 1GBit. To me it seems now that the system prefers the 10 GB adapters. My other two physical cards are no more used.

  I tried to do all 4 ports as virtual, but somehow the 4.7EPA ASM does not see virtual cards. He said only: "no network adapters don't find" at the opening of the MPIO settings.

  Should I just ignore this idea to share and use 2 for host and 2 for iSCSI hosts, or is it a medium work?

  It is recommended to devote at least 2 interfaces on the host iSCSI network.  In addition, you must install the Dell EqualLogic for Microsoft host integration tools and install the MPIO feature.  To enable the MPIO in the guest operating system, you must create at least two virtual switches that are related to the physical SAN on the Hyper-V host adatpers.  Virtual machines must be configured with at least two of these virtual switches.  Then, since the guest operating system, configure interfaces with IP iSCSI network, Subnet, etc...  You must also install the Dell EqualLogic for Microsoft host integration tools and functionality MPIO DSM in the guest operating system, if it is not running Windows.  If you use Jumbo frames, ensure that all NETWORK adapters used for iSCSI (NETWORK physical cards, NETWORK cards, Guest OS NICs) are enabled for frames.

  In regards to ASM v4.7 EPA you don't see not cards network for MPIO - there is a known ASM / ME v4.7 bug in Windows Server R2 2012 linked to the EPA.  It is likely that the configuration of MPIO is fine (you can check it out through the initiator Microsoft iSCSI MPIO EqualLogic tab - it's just that ASM / me has a problem of information display.)  This bug has been fixed in version recommended to v4.7 GA HIT/Microsoft - which is intended to be published very soon.

• Word 2010 - Mapi error - when trying to record and send a document as an attachment

  Just recently, after finally getting WLM2011 to at least send an email without crashing, I started now to experience a problem with sending documents as attachments from Word 2010.

  Here's the Windows Help:

  This error can occur if you try to send a Word document as an attachment in Word and the MAPI session was closed and Word is no longer able to connect to that MAPI session. It can also occur if there is a problem with the fax configuration.

  To correct a MAPI to error: restart the MAPI e-mail program (for example, Outlook) or save and close the document, and then restart Word after restarting your MAPI e-mail application. Word will create a new MAPI session, allowing the document to send.

  To fix a problem with the fax configuration, check the configuration of your fax software settings, and then make the appropriate changes.

  Unfortunately, if the WLM is open or closed, the problem persists in Word 2010.  I repaired Word 2010 and repaired WLM several times and the MAPI error is not resolved.

  Is this something in my control panel > default program settings? perhaps.

  It is a chronic problem which has many causes and solutions almost as much. Boredom is often caused by Outlook the musculature to be the default program wherever possible. Different versions of Office do things differently, too. This is a good way to kick off:

  1. Type regedit in the start search box and press enter. Give permission if necessary.
  2. In the left pane, find the key called
     HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail
     and click on Mail.
  3. In the right pane, double-click (default). In the dialog that opens, turn off what's there, Windows Live Mail and click on OK.
  4. In the left pane, click the subkey called Windows Live Mail
     (HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Windows live mail)
  5. In the right pane, look for DLLPath in the name column.
     If she's not here,
     1. Right-click on an empty part of the right pane, and then select New > string value
     2. Type DLLPath to name the new value and press enter
     3. Double-click DLLPath and in the box that opens, type carefully
        C:\Program Files (x 86) \Windows Live\Mail\smapi.dll
        If yours is a 64-bit computer, or
        C:\Program Files\Windows Live\Mail\smapi.dll
        If it is 32-bit.
        Click OK
     4. If it is, skip 5.1 and 5.2 and go 5.3
  6. Repeat 5, but this time with DLLPathEx

     You should end up with something like this:

  

  Close the registry editor, restart your computer and test the functions you were missing.

• BlackBerry software Mapi Logon Failed

  Just when I thought everything was fine.  That was yesterday and now today out of the blue I get this error on sync Outlook calendar and contacts to my Z10:

  "Failed to open Mapi session.  If please run Outlook with the 'Outlook' selected profile and try again.

  I have reset the setting and set up the sync for nothing will do.

  Once all started work yesterday, nothing has been touched.

  Grrrrrrrrrrrrrrrrrrrr.

  Good, now solved.

  Somehow the files associated with office located on the Z10 account profile has been corrupted. Remove this profile account and then reset the calendar Outlook and Contacts sync on link. then synchronize calendar and contacts, and now everything is back. There is no indication as to how files has been corrupted.

• MAPI Smartphones blackBerry connection failed: can not sync DM with torch more

  I updated the software to OS 6.0 Bundle 2949 DM
  When I try to sync, I get the following error
  Failed the MAPI connection: if it please run outlook with the 'outlook' selected profile and try again
  I have the correct outlook profile selected. I could synchronize my flashlight with older versions on the DM BB software
  I downloaded a new version of DM from the BB site.
  Nothing seems to fix this problem

  Any advice?

  Had the same problem with a Bold 9650 synchronization... "Failed to open MAPI session. "Couldn't you please run Outlook with xxxxxx selected profile and try again" operate with the change of the profile. Take off the Outlook Connector was not an option. I fixed it by putting DM 6.0.0.40 back on my PC and works very well.