HA - guests with local VMFS and SAN devices

Similar Questions

• It is possible and effective: high availability (failover) on 2 guests with local storage?

  Hello

  I have a discussion on the implementation of ha (failover) with 2 guests with local storage.

  My advice is to go with a shared storage. But there is another view, use the cluster failover MS with local storage service to save on the shared storage hardware.

  2 "mirorred" on each host machines. Is it feasible at all?

  The HughesNet: have 2 virtual machines (SQL server and server applications in a highly available environment). The workload of the machines will be raised to 2 very powerful servers that are supposed to be buying.

  1. Please briefly explain a feature of local storage to provide HA.

  2. I got to cluster in the virtual environment, not so I guess that the shared storage is used only in the virtual environment.

  Thank you.

  Michael.

  There is software that can replicate a running, physical or virtual machine to another accessible location on the network. This could be as simple that between two close hosted ESXi of VMS or high-speed WAN. Take a look at things like neverfail, doubletake others.  The costs would probably be a bit prohibitive in a smaller environment. It might be possible and maybe even practice to use a virtual storage device having a failover replication. Use of storage on each host and allows to provide the data store. Open-e

  The Microsoft Clustering solution needs a shared storage.

• LabVIEW: Concerns with local Variables and the readability of the program

  Hello everyone. I was hired for the summer to work at my University to a new laboratory. All right, but I have some problems with my main VI. I am a new user of labview coming from a C++ background. I went through several iterations of adding features, fixing bugs and doing my readable program. Before the last "cleaning" my program was so big that I couldn't see it all at once on my screen. My goal was to solve this problem. My solution contained three parts: use a state machine show parts of my code at the same time, to remove the son as much as possible, and use structures element to position my code manually.

  I met since problems write other programs that brought me here, and I saw a series of messages condemning the new programmers for their use of local variables instead of cables. I do not know my use of structures element as fancy boxes I can exclude the automatic cleaning is also a terrible practice.

  After doing some more reasearch on the subject I see local variables to add the duplicate in memory entries and their suppression can significantly speed up execution time. I have a delay programmed in a part of my code, but the rest can run as fast as he can as far as I'm concerned.

  I have attached my main program. Looking at it I think I did a good job to make it readable. But I'm not a user expert labVIEW.

  How to balance (do not use local variables, these structures element, etc.) efficiency and readability. Before you make these changes, there was so many things and so many threads all over the place that I couldn't even tell what was going on, and even less my teacher. I really wish I could see my entire program without scrolling on this computer of the laboratory (resolution 1280 x 1024).

  Advice on how I can achieve the efficiency, simplicity and common readability would be greatly appreciated. I feel I've done the latter while sacrificing the first two. Ultimately the three should probably be equally important.

  Thank you.

  Nukem

  LabVIEW 2010

  

  As said altenbach, attach your event structures.  It should really be only need structure of an event, especially for a simple VI like that (I counted 3).  This is the second time I have recommended this today, but fetch JKI State Machine.  I use as the basis for most of my interfaces.

  Here's a way to manage the break with JKI.

  

  

  

• Configure Jabber for Mac with local CUCM and WebEx Connect

  Hi, I was wondering if someone could set up the Jabber client Mac 8.6.2 to use the server of presence of WebEx Connect with a local farm the CUCM and connection of the unit. The tab preferences accounts show or allow the addition of voice services. I added work CUCM preferences plist file local, which, according to me, are the correct entries, however I still can't see the accounts under the Preferences tab. We currently do not have a presence server local cisco where the obligation of trial WebEx Connect Server because I can't get past the first step of configuration without it.

  concerning

  Paul

  You must connect to your Webex portal and activate these settings to connect.  Once they are allowed, log out/log in Connect and you should be able to configure CUCM TFTP, etc..

• How to extend a drive with createType = "vmfs" and ddb.adapterType = "buslogic".

  Hi VMware experts.

  You need help to solve a problem.

  I sda.vmdk the file next to the vmdk descriptor and the sda flat, the hard file

  Disk DescriptorFile

  version = 1

  Encoding = 'UTF-8 '.

  CID = 1eed866e

  parentCID = ffffffff

  isNativeSnapshot = 'no '.

  createType = "vmfs".

  # Description of the measure

  RW 2097152 VMFS "sda - flat hard."

  # The database disk

  #DDB

  ddb.adapterType = "buslogic".

  DDB. Geometry.sectors = "32".

  DDB. Geometry.Heads = "128".

  DDB. Geometry.Cylinders = '512 '.

  DDB. UUID = '60 00 C2 9 d 4 b 04 74 e0 - cd bf being 7th e3 7 d f1 c5'

  ddb.longContentID = "4270b56ea10a34306eb588651eed866e".

  ddb.virtualHWVersion = '8 '.

  The sda-apartment has two partitions linux below

  Sda - flat hard disk: 0 MB, 0 bytes

  Heads of 34, 61 sectors/track, 0 cylinders

  Units = cylinders of 2074 * 512 = 1061888 bytes

  Device boot start end blocks Id system

  SDA - flat .vmdk1 * 3 1011 1046333 83 Linux

  SDA - flat .vmdk4 1 2 2043 83 Linux

  Partition table entries are not in the order of disc

  Can you please how can I resize this disc. Also, I'm confused about the disparity between the hard disk geometry information in the descriptor vmdk file and the output of the fdisk.

  Concerns

  Ivan

  I always used to gparted to expand the vdisk, I don't think that you can recreate the partition as it already of the filesystems on it.  You will have to destroy the current partition and recreate if necessary.  Be very careful because this could result in loss of data.

  Is there a reason you want to recreate rather than simply extend your existing partition?

• Log InSight can work with Cisco Catalyst and Nexus devices?

  Hi guys,.

  someone at - it use Log Insight for catalyst devices and Nexus?

  Yes, the Insight journal will work with all the unstructured data sent via the syslog Protocol. Support for devices Cisco remote log to a syslog destination shipping as newspaper Insight.

• Hot spot doesn't work only with I Phone and other devices Application Compatibility

  Point hot apperas to work and show my iPhone as a user, but I can't access the internet with the phone?

  Hello

  Thanks for posting your question in the Microsoft Community.

  You can check these links:

  iOS: Troubleshooting Personal Hotspot

  http://support.Apple.com/kb/ts2756

  iOS: Understanding Personal Hotspot

  http://support.Apple.com/kb/ht4517

  If this does not help, then contact Apple support team.

  http://www.Apple.com/contact/

  It will be useful.

• Why don't the date and time on my mail in sync with local time and my PC?

  TB 31.5
  Earn 8.1

  Thank you
  ORI

  See http://kb.mozillazine.org/Time_and_time_zone_settings for more details.
  If you set the local time on your system are on the zone 'wrong', all messages (sent or received) will have a lag as noticed in your case.

• Local storage and multiple ESXi hosts

  Hi, I was wondering how vWorkspace manages local storage in an environment with a single server Vcenter and two ESXi, with a local data store each.

  If I store a 'master' (I mean the gold statue) vm on the local storage of an ESXi, can replicate vWorkspace this virtual machine to the local storage of the other ESXi as Citrix VIAB?

  If not, how can I use both my ESXi servers with local storage and maybe provide some sort of HA?

  Am I forced to use a storage shared, if I want to be able to deploy clones related both to my ESXI?

  Thanks in advance.

  Hello

  Use vSAN, or no matter what virtual SAN Appliance as an iSCSI SAN storage to prosecute two storage facilities... You can replicate between the two servers and same LUNS are used by vWorkspace.

  • StarWind free iSCSI Solution A
  • OpenFiler
  • vSAN
  • Open-e iSCS SAN

  Quick search... www.unixarena.com/.../Top-10-Storage-appliance.html

• The upgrade of our guests 5.0 ESXi and vCenter Server 5 and 5.5 Enterprise Plus

  We are the 4 upgrade hosts of ESXi 5 to 5.5

  We add 4 more guests with own ESXi 5.5 installed

  We are also upgrading our vCS 5 in the vCSA 5.5

  Using Enterprise + licenses

  Question: I'm trying to understand the best way to achieve this transition.  4 guests run about 100 virtual machines and 4 guests we add are clean slates.

  That's what I think... Please help me guys

  1. once the 4 new hosts are installed in the Datacenter clean running ESXi 5.5 I will deploy the vCSA ovf and register 4 guests with the Linux-based device.

  2. now, I have 4 new 5.5 ESXi hosts registered and running with vCSA 5.5 but I still have my old 4 guests with ESXi 5 and registered to the old vCS about 100 virtual machines running WIndows

  3. at this point I think stop on my older hosts 4 virtual machines and remove them from the vCenter Server inventory Windows and everything just their registration with the new vCSA

  4. Will be all my virtual machines or transferred with the hosts if I close them and put the hosts in maintenance mode?

  5. now, I should have all 8 guests registered with my new vCSA.  But the original 4 hosts have yet to be upgraded to ESXi 5.5

  6 move 100 virtual machines to the new 4 hosts running ESXi 5.5 and upgraded the 4 former hosts.

  7. now, I should have 8 guests with ESXi 5.5 using the vCSA

  See you soon!

  Pretty much.

  To make things easier, you can deploy the EGGS for vCSA in your current vCenter (if I remember correctly import an OVA using vCenter allows you to set certain options that should be set to the vCSA shell). After making sure that the vCSA online & configured, you can then install ESXi on all your new hosts, add them to a cluster in the vCSA and put a few trials of virtual machines on there to confirm the network setting is configured correctly. Once it's done (and assuming that the old and the new hosts use the same shared storage) you can stop the vCSA, remove it stock Windows vCS, please write it on one of your new hosts and turn on. You have now two environments (5.0 and 5.5). Next if you disconnect a host from 5.0 vCS (with virtual machines running on it), you can then connect it to the vCSA 5.5. Assuming that the vSwitchs standard networking of the exchanges that are the same name in both environments, you now can vMotion VMs between host 5.0 and 5.5 cluster. At this time, you can repeat with all remaining hosts until everything has been made the transition without service interruption. This will leave a lot of old objects in your old 5.0 vCS, but if that is getting trashed it isn't a big deal.

• My new Apple TV v4 does not smoothly on Airplay with my MacbookPro and Air laptops but with the iPhone and iPad Airlay gets so juddery and then goes off - laptop computer WiFi connections all that happens on clues?

  Devastated to find that the new AppleTV works great on Airplay / mirroring with the iPhone and iPad devices but completely useless on the NEW laptops.

  Trying to show any video for example utube creates immediately hop on the TV screen when you use the Macbook and in no time the WiFi connection is stunned.

  What is going on?

  I use ElCapitan, and the last 15 "16GB i7 Macbook MacbookPro and not expect a problem with streaming media.

  Absolutely well on Airplay with bith an iPhone 6 Plus and also an Air iPad

  This will be due to a network problem. There is a difference between mirroring of a phone/Tablet and grow to a full desktop in real-time

  Mmake that there is no other activity (other streaming, web browsing, backup network etc.)

  Try to connect the Apple TV via ethernet

  To see a current state of the network to obtain a report of istumbler or similar. Look for the strength of the signal, noise, networks nearby

  Test on another network

• Local mode and server transfer

  Hello

  Do I absolutely need a transfer server configuration in order to make the Local Mode with VM fully funded (not linked Clones)?

  Currently, I don't have a forwarding server configuration and while he was trying to "verify" a virtual machine, it fails and cannot connect to the ESX host... I guess it is the firewall between the VM and the ESX blocking, but none of my Firewall admins are currently available to check. I also searched the view guide administration of 4.5 for ports associated with local mode and is not listed.

  Thanks for the help.

  Yes, you will transfer server. It act as a Web site that has stored the vmdk and allows the customer to local mode download and resume features. the forwarding server must be in the vcenter that is connected on the view connection server.

• Comparison of local VMFS SATA vs SAS VMFS SAN deployment

  Hi all

  According to my understanding, run a virtual machine on top of my SAN with VMFS, supposed to be the best practice of the industry of performance running VM salvation

  However, with the current setup, I am very confused why the performance is slower than Local hard disk

  HARD drive space: 4 x 500 GB SATA 7200 RPM RAID-5

  C:\SQLTEST & gt; sqlio.exe

  SQLIO v1.5.SG

  1-wire plays 30 seconds of the file testfile.dat

  using 2 k IOs over 128 KB stripes with 64 IOs by race

  initialization done

  AGGREGATED DATA:

  flow measurements:

  IOs/s: 8826.73

  MBs/s: 17.23

  While on the SAN HARD drive: 14 x 300 GB SAS 15000 rpm RAID-5

  C:\SQLTEST & gt; sqlio.exe

  SQLIO v1.5.SG

  1-wire plays 30 seconds of the file testfile.dat

  using 2 k IOs over 128 KB stripes with 64 IOs by race

  initialization done

  AGGREGATED DATA:

  flow measurements:

  IOs/s: 2314.03

  MBs/s: 4.51

  No idea how this could happen if you please?

  Kind regards

  AWT

  iSCSI is what it is...   You get wow numbers like you do on the DAS.

  On the MD3000i?  We found it important enough to keep really hard hitting servers / vm / guest on LUNs dedicated and virtual disks.  The limits of 160MO iSCSI are sort by target where each lun is considered to be a separate objective.  On the MD3000i controller double load balancing is done by the virtual disk.   If you match a dedicated to a virtual disk lun and divide the VD upward between the controllers, the server's performance seems strong in production.  Still, you won't get the numbers of wow on the tests you get on DAS devices.

  If you want really good performance on account of the VM?    Use the MS iSCSI initiators, even if we do not like this, tests proved much better performance in tests of IO.  In production?  you won't really see a lot of difference in my experiences.

• a few questions about ESXi and SAN CF with HP P2000 G3

  Hello everyone!

  I am new to ESXi and SAN, then I need help for her.

  I have Encolosure C7000 system with 4 blades BL460c already installed ESXi 5.1U1 (HP custome ISO image). Everything works fine now, but I do not understand something:

  -What is the management network which I use vSphare Client to connect to? It is a private network to manage ESXi servers what difference with VMnetwork used by Virtual Machines? Because I've set up an IP address for this connection manually, but it is of course separate with IP addresses, I used on Virtual Machines.

  -If my system has problem, so I have to reinstall ESXi, license keys can be used again? Already, I have 8 license key for 4 blades (2 CPUs per server), but they have not yet used. Because I am new to ESXi, cause I had to reinstall ESXi several times to understand.

  -When I install successful ESXi, I don't know how to start working with SAN. What should I configure P2000 before it be plugged into the SAN switch? Or I can plug it then config later? Because I don't see it on the ESXi server. And on the OS I installed on the Guest Virtual Machines, I see nothing new in Device Manager. I thought that this guest operating system will detect the mezzanine card. But I see only mezzanine card that connect to the P2000 by SAN switch in ESXi (see image here http://img203.imageshack.us/img203/684/dsc04088k.jpg ). To my knowledge, I think that ESXi server have to detect the P2000 as hardware device. Can someone teach me step by step install and configure a San on ESXi? Or show me a tutorial because I searched but only iSCSI results.

  My devices:

  01 7.1 HP BLc7000 CTO 3 IN LCD ROHS Encl.

  04 BL460c G8 servers HP FlexFabric 8.5 10 Gb 2 p 554FLB FIO blade adapter

  02 7.3 HP B-series 8/12 c BladeSystem SAN Switch

  01 HP P2000 G3 MSA FC Dual Controller

  Thanks for any help, sugession or comment!

  -What is the management network which I use vSphare Client to connect to? It is a private network to manage ESXi servers what difference with VMnetwork used by Virtual Machines? Because I've set up an IP address for this connection manually, but it is of course separate with IP addresses, I used on Virtual Machines.

  Yes, it's a separate network used only for traffic management between ESXi hosts and vCenter - it is also the network used to connect to the environment - that's different, then the network used by your virtual machines

  -If my system has problem, so I have to reinstall ESXi, license keys can be used again? Already, I have 8 license key for 4 blades (2 CPUs per server), but they have not yet used. Because I am new to ESXi, cause I had to reinstall ESXi several times to understand.

  Yes the license keys can be reused, and if you use vCenter licenses will be managed by vCenter

  -When I install successful ESXi, I don't know how to start working with SAN. What should I configure P2000 before it be plugged into the SAN switch? Or I can plug it then config later? Because I don't see it on the ESXi server. And on the OS I installed on the Guest Virtual Machines, I see nothing new in Device Manager. I thought that this guest operating system will detect the mezzanine card. But I see only mezzanine card that connect to the P2000 by SAN switch in ESXi (see image here http://img203.imageshack.us/img203/684/dsc04088k.jpg ). To my knowledge, I think that ESXi server have to detect the P2000 as hardware device. Can someone teach me step by step install and configure a San on ESXi? Or show me a tutorial because I searched but only iSCSI results.

  Yes, you will be able to configure the San later - by default, the virtual machine will not see the SAn, as it is virtualized by your ESXi host - all the VM will see is a virtual SCSi disk - this doc's guide to vmware for storage - http://pubs.vmware.com/vsphere-51/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-511-storage-guide.pdf - you can visit the website of HP they might have documentation on configuring P2000 for vSphere -.

• synchronization: How can I store the mails for different accounts remotely and manually copy the most important e-mails in local folders on both devices?

  Hello. I have two machines and two accounts, so what I want is this:
  I want only to store mail from two accounts in a remote place and copy more important mails to local folders.

           (I will be grateful for any ideas as to where/how this "cloud" can be - specially free places)
           * Can I have a copy of these local folders in both devices and the remote storage?
           * Could i synchronize devices so that: when i move a mail to a local folder in any device, its copied to the same folders in
              the other device and the remote storage place?
           * The remote storage place will have many other folders. When I open Thunderbird, I also want to see these and the mail
              inside, and also be able to move mail from the inbox to these folders.
            * One of the accounts is gmail. In Account Setting tool, there is an option for synchronization. If there is no easier way, I can have mail for other account copied to gmail, and just syncronize gmail mail. For this, how will I copy my present folder structure to gmail. And how can I syncronize the local folders on the two devices?
  

  Thanks in advance.

  The first awkwardness that I see is that there is no clear format in which to store the messages remotely such that you can work with them in an email client. It may be possible to set the option "Local Directory" of the account in Thunderbird to point to a remote folder (DropBox comes to mind) but I've never tried, and I'd be nervous about what happens if the connection cannot be established, or if you happened to access it simultaneously from two different locations. The other concern is that mail stores are fast becoming big, and you would be forever download and download large files (several gigabytes). Thunderbird stores what looks like a folder that contains many messages separated as one big file, so there is no simple possibility of incremental changes to load up/down.

  The idea of local folders in Thunderbird is to detach messages from servers, therefore they do not follow what is happening on the servers. I say this to emphasize the distinction between files stored locally and permanently ("Local Folders"), against copies cached files online ("synchronized"). It is not sure to consider your folders synchronized as permanent.

  So folders synchronized on an IMAP server are "mirrored" in Thunderbird you do not have a local (although temporary and transitional) copy of messages. This is done primarily to avoid download repeatedly the messages if you re-read, and it makes the fastest search more effective. But these "synchronized" track of message that are deployed on the server, and so if they are deleted from anywhere, all devices that are synchronized at one point also see messages deleted endangered. (Except if you have saved a local copy on the local folders account).

  I use a gmail account quite as much as you described; Copy or move messages to this account, so that they are visible in my phone, my tablet, my own laptop and my computer works. It's free, and it is "in the cloud"; the only reservation I have is her private life. There are other suppliers (e.g. 1 & 1/gmx) who do not seem to have the fetish of collecting data that google thrives.

  It's pretty simple to create filters in Thunderbird to automatically copy messages to your account "cloud." even better is to implement the translation of rules on the servers of other accounts, to ensure that your messages are automatically sent and waiting for you when you log in next time, already in the cloud account.