vmkping to the loss of packets of san storage

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• Need help in the choice of VMware DR SAN technology

  Hi all
  I look at which one is the better choice for DR environment?
  between SAN based technology replication or 3rd party application (Veeam Backup and replication, or VMware Site Recovery Manager).
  my situation is that I have running for most VMware ESX virtual environment as follows:
  1. production environment that is mixed HP DL 380 and the server blades with EMC Clariion CX4 - 500 FC - SAN
  2. planning for DR environment that uses the same model of server, but still think that SAN technology that we could use for replication between two sites. The recovery site is not necessarily to be as fast as the current production and the SAN cannot be EMC
  Any comments would be greatly appreciated.
  Thank you.

  you will need almost the same model in order to achieve the SAN replication by using the built-in function of SAN storage. If this is not possible, you may be able to virtualize the SAN, so that both are of the same type. One way is using HP Lefthand VSA or Falconstore.

• Reports on the TMS - network packet loss

  Hello world

  I'm seeing packet loss reports in TMS, but there is no info here.

  My network is: VCS 7.0.2 movi, c20 and ex60 registered (SIP) as well as a TMS 13.1.2.

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  I am very new to the TMS, and I wonder if there is something I should be doing in order to make endpoints send info packet loss to TMS.

  I sshed in endpoints and I can see the info on packet loss and jitter through the api.

  Described above is my test network on which I can make prety much all about. I also have the same problem (this time with EX60 endpoints, control VCS and TMS) on a network of clients and on this network that I really need this job.

  Any help would be appreciated. Form what I read end points to send this info by HTTP to MSDS. Am I wrong?

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  Hello

  Endpoint to send your comments to tms on http Yes. I'm not at the office and this cannot be verified at the moment, but I don't know if devices running software like c-series and ex support tc this packetloss reports, I know the MXP legacy for this. If anyone can check it out that would be great. If this isn't the case, I will check it tomorrow.

  At least, you can check that endpoints send your comments to the tms at all looking at the system in the browser tab newspapers.

  Check the trap logs. If you see connect and disconnect traps here, feedback should work.

  /Magnus

  Sent by Cisco Support technique iPhone App

• HA with the loss of SAN connectivity

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  We organize three identical hosts of the ESX 4.0 U1 configured in a Cluster like HA and DRS using CF to shared storage.

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  http://professionalvmware.com/2010/01/vSphere-host-died-abandon-ship-vSphere-vCenter-alarms-actions/

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• Packages oversized can cause loss of packets with Dell PC6248

  Hello

  We are seeing packet loss on our voice network which causes the phone sometimes sounds without interruption.  This could be the result of oversized packets (more details below).  On a separate note, if I transfer images using Windows Deployment Services multicast it floods all ports (so I don't more :-).  I had initially activated IGMP but he already caused the switch block at random which may have been connected with firmware earlier.

  We have the fairly simple network:

  1. 3 Dell PC6248s connected in a star (dist 1 and 2 switches access) topology connected together with LAG trunks running latest firmware.
  2. Several VLANS: voice VLAN (100) production data for IP phones, the vlan 1, dev on vlan 5.
  3. IP phones are mainly Aastra 9133i popular with some Polycom.

  I dug more and we are seeing a certain 'oversized packages' on the LAG trunks.  I was wondering if it is at the origin of packets to drop.  If Yes, can I change the MTU size to 1522 (I read that marking adds 4 bytes to the default MTU of 1518) or is there a configuration error I forget somewhere?

  1. • show rmon statistics port-channel 1
       
       Port: ch1Dropped: 0Octets: 3436040607  Packets: 947867566Broadcast: 1158102  Multicast: 24535676CRC Align Errors: 0  Collisions: 0Undersize Pkts: 0  Oversize Pkts: 43969059Fragments: 0  Jabbers: 064 Octets: 24107589  65 - 127 Octets: 868940536128 - 255 Octets: 133380606  256 - 511 Octets: 76138498512 - 1023 Octets: 90380909  1024 - 1518 Octets: 72636117
       

     • show statistics port-channel 1
       
       Total Packets Received (Octets)................ 175230301131Packets Received > 1518 Octets................. 43968808Packets RX and TX 64 Octets.................... 24107385Packets RX and TX 65-127 Octets................ 868914890Packets RX and TX 128-255 Octets............... 133371613Packets RX and TX 256-511 Octets............... 76133886Packets RX and TX 512-1023 Octets.............. 90379490Packets RX and TX 1024-1518 Octets............. 72634059Packets RX and TX 1519-2047 Octets............. 4344763899Packets RX and TX 2048-4095 Octets............. 0Packets RX and TX 4096-9216 Octets............. 0
       
       Total Packets Received Without Errors.......... 947838588Unicast Packets Received....................... 922145059Multicast Packets Received..................... 24535481Broadcast Packets Received..................... 1158048
       
       Total Packets Received with MAC Errors......... 0Jabbers Received............................... 0Fragments/Undersize Received................... 0Alignment Errors............................... 0FCS Errors..................................... 0Overruns....................................... 0802.3x Pause Frames Received................... 0Unacceptable Frame Type........................ 0
       
       Total Packets Transmitted (Octets)............. 6732668920146Packets Transmitted > 1518 Octets ............. 5827795Max Frame Size................................. 1518
       
       Total Packets Transmitted Successfully......... 367499338Unicast Packets Transmitted.................... 4651719996Multicast Packets Transmitted.................. 5064125Broadcast Packets Transmitted.................. 5682513
       
       Total Transmit Errors.......................... 0FCS Errors..................................... 0Underrun Errors................................ 0
       
       Total Transmit Packets Discarded............... 0Single Collision Frames........................ 0Multiple Collision Frames...................... 0Excessive Collision Frames..................... 0
       
       802.3x Pause Frames Transmitted................ 0GVRP PDUs received............................. 0GVRP PDUs Transmitted.......................... 0GVRP Failed Registrations...................... 0BPDU: sent 1286910, received 9
       

  Here is the config for our switch dist:

  !Current Configuration:!System Description "PowerConnect 6248, 3.3.6.4, VxWorks 6.5"!System Software Version 3.3.6.4!Cut-through mode is configured as disabled!configurevlan databasevlan 5,10,15,20,25,50,100,150,200vlan routing 1 1vlan routing 5 2vlan routing 100 3exithostname "SW1-M01"sntp unicast client enablesntp server 192.168.0.211clock summer-time recurring USA zone "CDT"clock timezone -6 minutes 0 zone "CST"stackmember 1 2exitip address 192.168.150.250 255.255.255.0ip address vlan 150ip domain-name ***ip name-server 192.168.0.211ip name-server 192.168.0.212logging 192.168.0.128level warningexitip routingip route 0.0.0.0 0.0.0.0 192.168.0.253interface vlan 1routingip address 192.168.0.254 255.255.255.0exitinterface vlan 5name "Dev_VLAN"routingip address 192.168.10.254 255.255.255.0exitinterface vlan 25name "DSL_VLAN"exitinterface vlan 100name "Voice_VLAN"routingip address 10.116.116.2 255.255.252.0exitinterface vlan 150name "Management_VLAN"exitusername "admin" password ---- level 15 encryptedvoice vlanline telnetexec-timeout 1800exitip ssh serverspanning-tree priority 4096!interface ethernet 1/g1channel-group 1 mode autodescription 'SWI-M02_Uplink'lldp transmit-tlv port-desc sys-name sys-desc sys-caplldp transmit-mgmtlldp notificationlldp med confignotificationlldp med transmit-tlv locationlldp med transmit-tlv inventoryexit!interface ethernet 1/g2channel-group 1 mode autodescription 'SWI-M02_Uplink'lldp transmit-tlv port-desc sys-name sys-desc sys-caplldp transmit-mgmtlldp notificationlldp med confignotificationlldp med transmit-tlv locationlldp med transmit-tlv inventoryexit-- snipped due to length --
  

  Thanks!
  

  I've been searching through your configuration and try to spot something that may be the cause, but nothing is really jumping on me.

  On the phones they have workstations that connect to their internet access? Or is it just the phone itself?

  One thing we can look at the practice enables jumbo frames. Jumbo frame can be let through all ports and the switch will still go from regular sizes. Extended frames must be activate through all the connections at both ends, once activate on the LAG on a switch, you need to activate on another LAG switch also pass to the back.

  Console (config) # interface range ethernet 1/g1-1/g48

  Console (Config-if) #mtu 9216

  Console (Config-if) #exit

  Console (config) # interface ethernet port-channel 1

  Console (Config-if) #MTU 9216

  Console (Config-if) #exit

  Make sure that you back up the configuration in the startup-config on the switch.

  That a try and see if there is a change in behavior.

  Thank you.

• Loss of packets randomly, but only on windows clients

  Hi all

  I worked on this problem for a few days now... I experience intermittent but only on Windows guest os packet loss. Here are more details on the problem, the network, and what I have done.

  The problem:

  Loss of intermittent package at random on the operating system called windows of the sometimes stable, sometimes up to 4% loss of packets for short periods of time. NO problem on FreeBSD, Redhat 5.6 comments or Oracle Linux 6.

  The platform:

  V4.1 ESXi on a motherboard Intel based server built into the House.

  8 GB ram

  1 intel gigabit nic

  Intel E8200 Proc

  high use 4 comments

  1 pFsense (FreeBSD) 256 MB of ram, 4gig, 1cpu, 1 NIC Flexible 3, VMWare tools installed

  2 SBS 2008 4 g ram, 100gig vdisk, 1 cpu, 1 NIC VMXNEXT 3, full VMware tools installed

  3. Windows Server 2008 R2 (Web server) 2 g ram, 100gig vdisk, 1 cpu, 1 NIC VMXNEXT 3, full VMware tools installed

  4. Windows Server 2008 R2 (SQL host) 2 g ram, 100gig vdisk, 1 cpu, 1 NIC VMXNEXT 3, full VMware tools installed

  Test 2 comments

  1 oracle Linux 6 (wanted to play with the new version) 2gig ram, 100gig, 1cpu (usually power off) 1 NIC Flexible 3, VMWare tools installed

  2 Redhat 5.6 (my sandbox) 2gig ram, 100gig, 1cpu (usually power off) 1 NIC Flexible 3, VMWare tools installed

  The network:

  ESXi fed through manageable Cisco switch, Vlan 10 is management vlan, 20 is WAN, 30 is invited, 40 of DVR. pFsense firewall across all data control the VLAN. All OS invited on vLan 10.

  What I did to try to solve the problem.

  Hardware changes:

  1 replace former cisco catalyst switch with a switch SG200 newest. (Nice little switch, incidentally. I recommend)

  2. replace all connection cables, including patch esx box switch and all the range of cables for patch panel that feeds the physical domain-joined computers.

  3. replace the physical NETWORK card to the server (3 times, 3 different maps NETWORK Intel all)

  4. change of individual hard drives in a Raid 10 running on an Intel SAS (6 450gig 15krpm drives) raid controller

  Changes to the software

  1 changed all network cards in all the boxes of windows of E1000 to VMXNEXT 3

  2 disabled TCP Chimney on all windows boxes.

  3 reinstalled all windows systems of fees instead of boxes of physical conversions. The reconfigured all from scratch, reinstall all the software, did all the patches.

  At this point I don't know where else to go to try to solve this problem. Any help would be appreciated.

  Thank you.

  Hello

  I checked your packet capture file, there is a checksum error and, it seems, due to the activation of unloading of stain on your win box, try disabling it, this may solve your problem.

• Close programs to prevent the loss of information. Your computer is low on memory. You save files and close programs. Java (TM) Platform SE binary Windows Media Player

  Hello

  I keep getting the following error message, and leterally having my computer off over and over again, even if I added 1 GB of RAM (now 3 total RAM) mor and also added a 8 GB SD card as more power:

  Close programs to prevent the loss of information.  Your computer is low on memory.  You save files and close programs.  Java (TM) Platform SE binary Windows Media Player

  I did research on the various search engines to know that many face the same problem, with a variety of possible solutions, but so far, none work.  We suggest that I go to Regedit and change the permissions of the user and then delete the old files, after I import them.

  Needless to say, I am just a user and have just a bit of technical knowledge.  The local PC repair shop in my town has no idea what to do.  For anyone who has a solution to this problem, help will be greatly appreciated!

  Randy Kline

  First of all, unless you know EXACTLY what you do and WHY you do it. I personally recommend never do anything in regedit. I consider myself a moderate to advanced computer user and a moderate user of windows. And I always stay away from regedit, if I can, because you can seriously screw things if you don't know what you're doing... Although, to be honest most of the settings will not have a devastating drama.

  It seems to me that this is a memory leak in the program, you will get this error message to make sure that your computer will just crash, because if she is running out of RAM... Well it will crash.

  If you have a 2 and a 1 GB for a total of 3 GB, I recommend the upgrade once more and just round up to a nice 4 (this is the most of memory a 32-bit system can handle in total)

  Works of memory in a way that you see really only a few performance jump with memory dual channel, the only way to have that is really striking the rods of same in each slot.

  There isn't really a reason that this happens every time, except that simply your computer is low on MEMORY, when your computer says this means RAM, not disk memory storage area.

  If you clean your computer of the programs you never use and stop using windows media player (itunes is better in my opinion, even if you don't have an ipod), you can see an improvement, but to really isolate the problem, I recommend simply opening your task manager as soon as you start your computer (ctrl + alt + delete usually gives you the option or it opens directly) otherwise you can do start-> RUN taskmgr.exe , OR type taskmgr.exe in the search box and press on enter.

  Then, look at the column of memory as I said it sounds like a program has a leak, and you will see that is because memory will begin at low/normal and then numbers just keep climbing...

  Also, make sure that your computer recognizes all 3 GB or RAM. in Task Manager if you have access to the performance tab, under physical memory must be a thing called Total, 3 GB = 3074. If this is not an option in your reason, you can go under Accessories/System Tools system information (on the start menu). (may take a while to load) but on the home page, you should see something that indicates the amount of TOTAL PHYSICAL MEMORY. You want to read this / 3GB or 3074 MB.

  Hope this helps some!

  I recommend to remove all programs, you are ready to, especially those that you never use. Do a complete uninstall. Then start installing windows clean (download google) just to make sure that the program has been removed. then go start--> run msconfig OR just type msconfig in the search and click on go (I don't know if you're running XP or Vista/7)

  In the msconfig dialog, you should see a section that says startup. Don't forget to remove programs that you do not first. Disable startup programs, you use every DAY. Don't go turn off all if windows needs some process to run, and some processes don't effect anything. But if you're curious, you should be able to google all of startup items and see what it's related to and why you do or that you don't need.

  Good luck! Sorry, I'm everywhere with this response.

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  Hello

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  Hello

  See if that helps you.

  Do a system restore to a date before you had this problem:

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  __________________________________________

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  'No sound in Windows.

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• Close the program to prevent the loss of information

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  Hello Julie,

  You can refer to the suggestions mentioned by martelmungo on March 11, 2014.

  Close the programs little memory to avoid the loss of information

  http://answers.Microsoft.com/en-us/Windows/Forum/Windows_7-performance/low-memory-close-programs-to-prevent-information/e1f3960e-6935-44D7-BA11-12a125553387

  I hope this helps. Otherwise, feel free to write us again and we will be happy to help you.

  Thank you

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  Please refer to the help documents below to download the application Adobe CC:

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