Jumbo frames for domain UCS

Similar Questions

• iSCSI without Jumbo frames for 15 Virtual Machines

  I have a physical to VME to be implemented which took the material for the SAN already purchased and resources research I see I have a HP MSA2324i table, two HP DL 380 G6 servers with two HP 2512 switches, but I found that this switch does not support jumbo frames.

  This means that I'll have to stick to the default 1 500 bytes for Ethernet iSCSI frames and I worry, how this may affect the performance of storage network.  I have migrated 15 servers, and of them, I have both SQL Server 2005 and a role of mailbox Exchange 2010 for 100 users.

  My thought is that I have a load of really light work that the SQL Server, databases don't support every 20 users and I should be able to keep these virtual machines running efficiently without the use of frames.

  Are there experiences of the V sphere 4.1 functioning when using standard Ethernet iSCSI?

  See you soon

  Kyle

  I don't have not upgraded to 4.1 yet, but we ran standard ethernet iSCSI on 3.5 for several different machines and never encountered any problems.    VSphere is out with enabled frames, but I did not notice a huge difference.   I think you'll be fine, but you should definilty keep an eye on things.

  Here's a nice blog on putting in place of iSCSI for vSphere environments, http://virtualgeek.typepad.com/virtual_geek/2009/09/a-multivendor-post-on-using-iscsi-with-vmware-vsphere.html

  If you have found this device or any other useful post please consider the use of buttons useful/correct to award points

• ESXi 5 and Jumbo frames

  What is the proper way to configure some jumbo frames for an ESXi cluster used shared storage NetApp?  Configure extended frames to the bottom of the VM Guest NETWORK card or I stop at the dvSwitch?  I already configure jumbo images throughout the storage on the physical hardware.  It's just the virtual machine where I'm not sure and if I do not set up the virtual machine, will there be problems?

  Thank you!!

  Then, you don't need to do anything for the virtual machines.

• vMotion and Jumbo frames

  Enabling Jumbo frames ever advantage vMotion traffic bad? We will migrate out of our HP EVA on Netapp Storage soon. Currently, we are a single Fibre Channel shop now, but consider using NFS on Netapp only to align virtual machines (recommendation of Netapp Professional Services to increase the speed of the mbralign of a Linux VM).

  As we will only use really based on IP storage for the storage of virtual machine production, someone suggests to go even bother to change the size of the MTU on our switches and virtual switches?

  We are currently using 4.0U1 ESX and vCenter 4.0U1 but will be upgrading to 4.1 ASAP.

  I have never heard or read something about enabling Jumbo frames for vMotion. I don't think it's even a supported configuration.

  There are docs on activation of traffic iSCSI Jumbo frames. Most say, there is no advantage to 1 GBit networks but a significant advantage for 10 Gbps networks.

  André

• Airport Extreme Gigabit Ethernet and Jumbo frames

  Hi all.

  Can anyone support me kindly about Gigabit Ethernet & Jumbo Frames with Airport Express?

  I currently have and use a 5th generation Airport Express and you want to buy the QNAP TS - 453 Pro NAS. In any implementation of storage NAS, Gigabit Ethernet, the frames extended as matching Ethernet card well, are all very important to achieve broadband performance, so my questions are:

  5th generation Airport Express

  
  

  • Are the NETWORK Gigabit NIC Ethernet card?
  • It also works with extended frames (QNAP NAS supports 4074, 9000 and 7418 bytes for MTU)?
  • QNAP can trunk NIC (if more then one) with the following options:
    • IEEE 802.3ad (dynamic link aggregation)
    • Balance-tlb (Adaptive Transmit Load Balancing)
    • Balance-alb (Adaptive Load Balancing)
    • others (mainly for failover)

  Is 5th generation Airport Express enough or should I think about moving to the 6th generation?

  Thank you.

  You mix up the terminology... Express and Extreme are totally different.

  The title is correct... Extreme... your question text replaces by Express... they are only 10/100... and gen only 2 of them.

  Any airport extreme Gen2 - Gen6

  Use the Gigabit ports.

  Do not support jumbo frames

  Do not support pairing.

• EqualLogic SAN and Jumbo frames

  I can't get the jumbo frames to work on our Equallogic PS6000.  We have the following configuration PS6000-> Dell PowerConnect 6248 (bunk)-> Windows 2008 Server.

  The network cards on the SAN has been set at 9000 MTU, ports on switches are set to MTU 9216 and the NIC on Server 2008 is fixed to 9014 with active RX & Tx flow control.

  When the server connects to the SAN, newspapers account connection iSCSI target to the initiator "172.21.X.X:3260, iqn.2001-05.com.equallogic:0-8a0906-xxxxxxxxxxx-23a001a955452af6-server1" ' 172.21.X.X:49156, iqn.1991 - 05.com.microsoft:server1' managed, using the length of the standard framework.

  When I ping the SAN of Server 2008 with a shitload of 8972 bytes, it works very well.

  C:\Users\system>ping 172.21.x.x f-l 8972
  Ping 172.21.x.x with 8972 bytes of data: reply from 172.21.x.x: bytes = 8972 times<1ms ttl="255" reply="" from="" 172.21.x.x:="" bytes="8972"><1ms ttl="255" reply="" from="" 172.21.x.x:="" bytes="8972"><1ms ttl="255" reply="" from="" 172.21.x.x:="" bytes="8972"><1ms ttl="">

  Why 8972?  Told that some genius on the internet.  Any help would be greatly appreciated.

  Well we got it to work.  On Server 2008, we have Broadcom and Intel network adapters.  For our tests, we were just using the Broadcom NIC.  Properties Advanced NETWORK adapter, we initially have the value package Jumbo 9014 and it did not work.  So, we opened the Broadcom Advanced Control Suite that came with the NIC and searched and found that there are two parameters that need to be addressed.  There is a jumbo packet definition which has been set at 9014, which is what we wanted it in the advanced NIC Properties.  There is another parameter, MTU, which can be seen on the advanced NIC Properties.  It has been set at 1500.  Once we define to 9000, frames jumbo started working.  We then uncabled Broadcom NIC and wired the card NETWORK Intel and the value of frames 9014 on advanced network adapter properties.  Once we have that frame has worked on this NETWORK adapter, no other measures were needed.  If it's working now.  Thanks to everyone for their help.

• Best practices of Jumbo frames

  Hello

  I'm looking to use a pair of N3048s in a branch, as the heart of the network and for iSCSI (connected to a new equallogic).

  If I understand correctly, you can set the jumbo frames on the basis of a single port so it must be enabled on all ports.

  Will this cause a problem with the LAN network (i.e. not an iSCSI storage) that none of the devices are configured to use frames?

  Bravo for any advice,

  Huw

  It will not cause any problems. Frames allows the switch works with larger packets. If the switch receives a smaller package, it will be the leash at this size and it transmits on. If a larger packet is sent to a device that cannot receive the biggest package, then the package will be broken down into smaller.

• Enabling Jumbo frames on VMXNET3 adapter in Windows Server 2012

  Hello everyone on the forums of wonderful Equallogic :)

  We have a PS4100X of the virtual computer running on vSphere 5.1 EQL. Everything works very well, and we are about to migrate a VM 2012 SQL our database. I did some research on the issue of whether we should allow the frames extended on the VMXNET3 adapter in the virtual machine.

  Reading this white paper, it seems there are large performance benefits to enable jumbo frames and a few other options in the NETWORK adapter settings:

  http://en.community.Dell.com/TechCenter/Extras/m/white_papers/20403565.aspx

  Just curious as to how other people and if they saw an improvement in performance. Someone at - he had experience with this?

  Thank you

  Lee

  Frames being good or bad, is highly dependent on the switching infrastructure.   If the switches do not manage flowcontrol and frames, then performance could be worse with frames enabled.

  If the switches are not on the list certified for EQL tables, I tend to start with the standard frames, get a baseline run, then try frames gradually and do things of course worsen.

  Extended frames may provide an advantage, he will never be a huge increase, but it improves the efficiency of the network and could reduce the overhead of the processor.    Which are not mandatory for EQL iSCSI environments.

  Please check best practices with document ESX.  That can really help to maximize your performance with storage EQL.

  http://en.community.Dell.com/TechCenter/Extras/m/white_papers/20434601.aspx

  Kind regards

• How do I configure jumbo frames

  PC 3548p

  Could not find orders for frames / mtu setting?

  want to set overall n switch?

  I don't see any mention in the technical specifications for the P switch 3548 it supports Jumbo frames.  The 5500 series is the first model to offer the frames extended as a supported feature.

  Thank you

• 5524 - jumbo Frames - entire unit or only to certain ports / vlan

  Hello

  is - anyone idea, if possible to use frames only for ports specific it s?

  After enable JumboFrames, it will create a problem of common computers network traffic? I intended to create a VIRTUAL LAN to connect to the storage and r.620 (under XenServers).

  * We plan to use this unit to connect a Dell Power Vault MD3200i volumes as iSCSI offering.

  * According to our (ftp://ftp.dell.com/Manuals/all-products/esuprt_ser_stor_net/esuprt_powerconnect/powerconnect-5524_User%27s%20Guide_en-us.pdf ) switch mannual: "Activation iSCSI automatically enables Jumbo frames and allows the control of flow on all interfaces.

  Allowing the frames on the switch will allow the frames extended on all interfaces. I don't see a way on this option to activate the frames extended on a specific interface or VLAN. Allowing the Jumbo will not create any problem with common computer network traffic. If this switch is connected to another switch, it's a good idea to have some Jumbo frames enabled on the interface of switches connection also.

  Here is a white paper with some info good iSCSI.

  www.dell.com/.../Dell_EqualLogic_%20iSCSI_Optimization_for_Dell_Power_onnect_%20Switches.pdf

  See you soon

• Jumbo Frame (MTU) option is missing on vSwitch (vSphere Client)

  Hello.  We use ESXi 4.1 in our environment.  I'm going on my ESXi host configuration via vSphere Client, and found out that Jumbo Frame (MTU) is missing in the vSwitch.  That's what I expected, but the "NETWORK card" setting"section is missing.  Any of you had this problem?  Thank you.

  

  With ESXi 4.1 and versions earlier, you must configure several command line parameters, see for example http://kb.vmware.com/kb/1007654

  André

• Jumbo Frame on 1 Gig network

  Hello

  I'm using iSCSI based shared the storage configuration on the 1 Gig host connectivity, iSCSI, physical switch software and storage.

  Should I enable the jumbo frame on all devices of connection in order to have a higher flow rate?

  It will cause no problem as the connection to the store of data or something like that?

  Kind regards

  Sushil

  Allow executives to Jumbro for the IP storage is recommended, in any case may be a glance on the following link to see a few considerations and test results on the Jumbo Frames: Jumbo Frames comparison test with storage over IP and vMotion & raquo; boche.net & #8211; VMware vEvangelist

• How to activate traffic iSCSI jumbo frames?

  Hi all

  I have my separate iSCSI coming out of a NETWORK card dedicated to one vlan traffic.

  Now, I have activated the switch to extended frames, qnas 869 pro for jumbo frames also and I (AFAIK) activated my extended frames ESXI host.

  However on the stats of the switch, I can't have counters increase jumbo frames.  others are but not huge.

  After reading all that I Although jumbo frames can help increase performance?

  So I appreciated if you could help me!

  Thank you

  Josh

  Well some how I made jumbo frames work on my ESXI host.

  I enabled frames for each unique interface on the ESXI host and on my NAS that provides iSCSI (qnap 869 pro), I enabled frames extended on both interfaces on it.

  Now it works no problem!

• question of vMotion iSCSI and jumbo frames

  Hello

  I have a cluster ESXi 4.1 using vCenter and a SAN MD3200i.  I'll do an upgrade to optimize the installation, which includes the installation of four NIC ports in hosts that will be used for iSCSI.  I struggle to enable frames or not, but if I do, I just want to do for the iSCSI, at least for now.  Currently, the maps iSCSI network on the hosts and the MD3200 iSCSI connections are connected to two switches separated, although I have seven other switches in the building connected to the PC, printers, etc.  What I only turn frames on two switches that iSCSI is connected, or do I have to enable frames on all my switches?  There is a Dell 2724 and eight 6224Ps of Dell.  ISCSI is connected to the 2724 and one from the 6224Ps.

  The two switches that are connected to the iSCSI ports are not dedicated iSCSI switches; they have other devices on them, but I can only enable the frames extended globally on the switch.  Would there be any problem allowing the frames extended on the switches, otherwise all connected devices are configured for them?

  Another question about vMotion: I will create four ports on each host for iSCSI vmkernel.  Currently, there is also a port configuration vmkernel for traffic management and vMotion.  Is it possible to set up each of the four iSCSI for vMotion vmkernel channels, or should I leave it configured on the port of vmkernel management?

  Thank you!

  Sure. If you're going to enable Jumbo frames, you need to have dedicated switches for that, or a switch that may have different units MTU on their ports.

• Using jumbo frames rising more than 10 GB

  I have 2 10 GB uplinks that lead to the NFS, vMotion, virtual machine and all the traffic going to the host.  What is the best practice regarding jumbo frames?  If I use them to optimize the NFS traffic, it affects any other traffic as well as VM traffic so the production.   NFS should always use frames?

  TheVMinator wrote:

  It not there no problem to have certain groups of ports using frames and others using the regular size on the same host?  I just put the rest of the network to provide end to end?

  On the side of ESXi, there should be no problem. You have separate VLANs for different types of traffic? (Management, VM, NFS and other.)