Question about snapshots and virtual machines

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• Questions about replication of virtual machines using EMC storage

  Hello

  If we have a configuration on 5200 VNX and ready to replicate to Dominican Republic

  What are EMC replication Solutions, if not use Recoverpoint?
  I have to add licenses of replication with the Suites of the app for that?

  and whether using Recoverpoint, it is essential to use SRM for replication can be configured using Recoverpoint and VNX licenses only?

  and for another program installation is with 10 GB iscsi ports, what are the possible solutions?

  Thank you
  
  

  There are several choices for replication with EMC VNX. You can use Mirrorview. MirrorView/S (synchronous) is for short distances and Mirrorview/A (asynchronous) for longer distances and time of higher latency and low latency. You will need a license from EMC Recoverpoint or Mirrorview. Recoverpoint appliances can now be virtual with version 4. ISCSI is required for a virtual Recoverpoint deployment.

  You don't have to use RS with Recoverpoint, although I would recommend that you do. SRM automates many manual steps that are necessary to retrieve your VMs. SRM will be integrated with Recoverpoint or Mirrowview and you will be able to script recovery plans. In the case of the manual recovery plans would be required and will need to be updated.

  You can also duplicate with suppliers other than EMC software. VMware has built the replication that is fine. Veeam also sells software for replication.

  John

• Question about ESXi and NFS

  Greetings!  I'm hoping to get feedback on the following possible scenerio.

  Computer 1:

  The computer that is running Windows Server 2008.  Large amount of storage available, via dedicated hardware raid or 'software' / raid ICH10.

  Computer 2:

  Computer running ESXi v4 (installed on the local hard drive).  Core2Quad w / 8 GB RAM.  Responsible for about 4-5 virtual machines.  Each virtual computer will be low IO load (DCs environment lab, MySQL server, web server).

  I have three questions:

  1. are there any problems with the use of the space on 1 computer through Windows 2008 NFS to host virtual machines that will run on computer 2.

  2. because I do not use hardware RAID on computer 2, I won't RAID1 for redundancy.  If the hard drive fails, but virtual machines are on a redundant protected NFS share on Computer1, is there loss of data outside the need to reinstall ESXi on a new hard drive?

  3. someone can tell the performance of a 'software' RAID (probably RAID5) NFS share (ICH10, etc.) from the point of view of virtual machines hosting?

  Thanks in advance!

  1. are there any problems with the use of the space on 1 computer through Windows 2008 NFS to host virtual machines that will run on computer 2.

  Although the NFS Windows service is not the most ideal, it will work fine. You want to make sure there is no automated etc. updates and limited storage functions of the machine.

  2. because I do not use hardware RAID on computer 2, I won't RAID1 for redundancy.  If the hard drive fails, but virtual machines are on a redundant protected NFS share on Computer1, is there loss of data outside the need to reinstall ESXi on a new hard drive?

  It would not be otherwise than a hardware failure on any machine. You don't have the risk of data damage whether physical or virtual.

  3. someone can tell the performance of a 'software' RAID (probably RAID5) NFS share (ICH10, etc.) from the point of view of virtual machines hosting?

  Without hardware raid with a caching controller you won't have better disk performance. Controllers setting cached on RAM and will require a battery to protect the cache failure.

• Difference between the hosts and virtual machines

  Happy new year!

  I guess that's a stupid question, but I don't know the answer to it.

  I created pools from VM. Some jobs in the pool are hosts and some virtual machines. What is the difference between the hosts and virtual machines. I thought I could only create virtual machines, but I guess I could create hosts as well. -What happened?

  Thanks for your help.

  where does say desktops are hosts?  A host is usually referring to an ESXi server.  A virtual machine is just the guest OS running on the host computer.  A pool is a group of VMs that can extend over several hosts.

  Gunnar

• About a month ago I posted a question about iMovie and not being able to "share". I solved the problem thanks, so no more emails!

  About a month ago I posted a question about iMovie and not being able to "share". I solved the problem thanks, so no more emails!

  Hi Michael,

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• Question about business and Service of Proxy

  Hi friends,
  I have a question about services and proxy services business IE I need to find the time it takes to call an operation on multipoint business of proxy service, how can I do in oracle service bus (OSB)? You can help quickly

  If your question is only about the performance analysis,
  try to activate the 'monitoring' on the 'operational' of the Service Proxy Service/Company tab.
  For the Proxy Services, if you activate at the level of the 'Action' you get a lot of information about each individual action in a power of attorney.

  See http://www.javamonamour.org/2011/06/osb-profiling-your-proxy-service.html

• To cut and paste between Mac and Virtual Machine

  My husband and I have VMware Fusion installed on our MacBooks. We use it to run WIndows XP.

  His continues to have problems. Windows crash then left outstanding programs. Now, he can not copy / paste between Mac and Virtual Machine.

  I can't find all the differences in our backgrounds. I'm not having problems he knows.

  Any advice on how to solve this problem, so it can copy / paste between systems again?

  Assuming that the MAC is stable and not giving any problems I try and see why the XP VM crashes and at least re - install VMWare Tools on XP because that is what is needed to copy and paste between host and guest operating system.

  Look in XP Event Viewer to see if you can see what happens wrong... Click Start and then right-click my computer and then click on manage, and then click Event Viewer.

  Perpahs try running a virus scanner or applications malicious XP if you think that it might be infected.

  If all else fails, try and repair the machine virtual XP from your XP CD...

• questions about snapshot

  (my first post here... Please let me know if this isn't in the right place)

  
  

  I have a few questions on the snapshot after reading a bunch of KB articles:

  
  

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1025279

  -Don't use any single snapshot for more than 24 to 72 hours.

  Most of my live pictures for a long time and I have not noticed any problems. I do not understand why such suggestion.

  
  

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1013163

  ' In this example, the process took about 64 seconds... ". »

  This sounds like the take a snapshot on a production server might be a risky company is - it true?

  
  

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US & cmd = displayKC & externalId = 1003302

  -I see that consolidate you option on vSphere and it also indicates if a virtual machine needs it or not, but what are the criteria? I understand that if you take a snapshot, the content of the link delta gets grouped in the parent disk, but when should you do consolidate without deleting?

  When you create a snapshot, a delta VMDK is created for each VMDK. These delta VMDK can grow bigger as size put into service of the VMDK. The problems are to have a free space on data warehouses. The longer a snapshot around, he can take to commit the changes when you remove it. In addition, to commit the changes, you must have enough free space on the data store equal space in service of the virtual machine itself.

  I saw snapshots is damaged after staying close to a lot of time. In addition, the more instant stored with a virtual machine, more corruption risks.

  I manipulated the environments with lots of snapshots and it was rough. I had the VMs is damaged and must be restored from backups on a regular basis.

  I avoid them when I can.

  Backup software is a better choice. As Veeam!

• question about SQL and VMDK places

  Hello world. Im kinda new here so please be gentle

  I'm confused on the locations of the files for sql.

  At this moment I have 1 with 3 vmdk files sql server executes a muscular 100 GB sql database.

  My disks are as follows

  1 OPERATING SYSTEM

  2 DB

  3 newspapers

  They are all thick and they are all stored with the virtual machine in the virtual machine configuration.

  It lies in a cluster HA/DRS and we use them both.

  The question boils down to performance.

  If my VM is stored on DATASTORE_A and the VM folder on this data store has all the VMDK files in it, it would be safe to say that they are all on the same disk as much as vsphere is concerned.

  Now to get best performance, I want to separate my VMDK files to separate data (with faster operation) warehouses to avoid conflicts of drive on my current data store. What is the right way to go about this?

  How separate you your VMDK to other data warehouses, and enjoy other performance data store? WE do not use DTS at all so im sure it although we use HA/DRS in our group... and yet, I don't think that it is important in this case... just more of an FYI.

  What do you do to get your SQL servers to run in vmware?

  Seems like a basic question.

  The answer seems easy. Separate disks so that they do not fight.

  'S virtually done it with VMDK but the data store underlying is 1 speed and they all exist on this subject, so... How to separate them at that level for best performance?

  Also... once I keep them separated, how can I keep my sanity by knowing my VMDK are not with the virtual machine? This kind of made a mess . Of course the performance takes a front seat for my mental health.

  Thank you all

  1. If I sVmotion my other vmdk files via the advanced options of one in another data store, it will create the files folder structure based on my VM name and place the vmdk inside?  (I guess I could just test it and see).

  Yes, the VM configuration file (.) VMX) will be modified to point to the new location of the virtual disk. You can use the virtual machine property editor to check for this, once the Storage vMotion.

  2. with regard to the disk controller, I assume you mean a virtual controller by VMDK in the vmx / correct the settings of the virtual machine and not a phyical on the hardware controller? (IM pretty sure I know the answer here but I just want to be clear).

  Yes, the virtual controller is correct.

  If so, what type of controller? LSI Logic or it would benefit all a paravirtual adapter?

  As long as your operating system is supported, go with the PVSCSI every time - especially for newspapers and the controller file data.

• Cannot snapshot a virtual machine

  We run a virtual machine on one of our ESX (vSphere 4 Standard) host in a taking snapshots problem. We get the lovely 'operation is not allowed in the current state' and that's what keeps us save the machine through Veeam. I see a lot of messages for this error but found no which dealt specifically on taking snapshots suggesting just reboot the box. It is a production server, and I was hoping to avoid that if possible. I was wondering if anyone has any ideas or clues as to what might be wrong.

  Thank you in advance and here is the message from the vSphere client securely reproducible we get immediately after the launch of the snapshot.

  Create instant virtual computer
  Annex
  The
  the operation is
  not allowed
  in the
  current state
  .
  RX\tmunn
  vCenterSvr.rx.umaryland.edu
  04/03/2011 09:04:06
  04/03/2011 09:04:06
  04/03/2011 09:04:07

  Thank you

  Tim Munn

  University of Maryland, school of Pharmacy
  

  As you have mentioned, an interesting question

  Maybe something was wrong with the virtual machine when reinstalling vCenter. What I would try to do, is to stop the virtual machine, remove the inventory, (do not drive - remove would probably also solve the problem of the snapshot, but certainly not a way you satisfied), remove the ctk file (this serves to changed block tracking and will be recreated when the next backup/snapshot) and then add the virtual machine to inventory again by right-clicking the vmx file. Once that is done, try to set the "Client" virtual CDROM dirve If it works, you may need to reconfigure this machine virtual of Veeam backup too.

  André

• ESXi and virtual machine CPU cores

  The question I would ask is the ESXi processor cores and relationship of the virtual machine CPU. Is it recommended to assign some carrots to VM (this is assuming that the VM needs CPU extra for reasons of performance)? We will use the following example. If the host ESXi lies the VM has 40 cores of the processor is recommended to assign carrots in 2, 4, 8 format to the virtual machine? And that's okay assign 6 since 40 is not divisible by 6.

  jrmunday: when it comes to carrots vs sockets, they are there for purpioses licenses, other than one vcpu is a vcpu

  soda: each kernel is a vcpu, so you should not worry of the underlying hardware and the divisibbility... It is not a mathematical formula to be used on the basis of underlying archatecture. the only reason underlying archatecutre would be important is VCA differences, not the underlying differences.

• Questions about carrots and receptacles

  In vSphere 4 if one machine virtual needed more CPU resources you simply added an extra processor to the virtual machine.  However, in vSPhere 5 you can add additional cores or Sockets.

  I have a few general questions on this subject.

  What are the implications of the addition of an extra base on a socket and vica versa?

  Are there situations where you would choose one over the other (for example, I saw articales on the installation of the ESXi5 in a statement VM, configuration of the virtual machine with 2 virtual Sockets instead of 2 virtual cores)?

  Kind regards.

  Yes, there is really no difference, just some comments from operating system or application can include restrictions on sockets, but not on the carrots.

• List of instant and virtual machines in need of consolidation?

  In the vSphere client 5, it is possible to display all the VM in need of consolidation. In PowerCLI, I can't find this option.

  Is it possible to list all the VM who have snapshot in need of Consolidation?

  It is not (yet) available in the regular cmdlets, but it's pretty simple display this as a calculated property.

  Get-VM | Select Name,
  @{N="Needs Consolidation";E={$_.ExtensionData.Runtime.consolidationNeeded}}
  

  And a Variant perhaps useful, only list virtual machines in need of consolidation of the snapshot.

  Get-VM | where {$_.ExtensionData.Runtime.consolidationNeeded} | Select Name
  

• Question on networks of Virtual Machine

  I have a host machine running Windows 7. I installed VMware player and I create a virtual computer running Oracle Enterprise Linux 5.5 (almost identical to the version 5.5 of Red Hat). In the end I will be installing an application on the virtual machine that is not compatible with DHCP. So, when I install OEL 5.5 I need to manually provide information from network devices (IP address, primary DNS, subnet mask and host name). I've done it before on successfully on a material physical but never before on a virtual machine. On my first attempt I was wrong and my web browser running on the virtual machine can connect to the Internet.

  My instructions say "set the gateway information based on the IP Address of the gateway router. I wonder if this is correct in view of the virtual machine.

  On the machine host, when I run the ipconfig command in the DOS window I see a mask of address and the IP subnet for the host, and I see two additional network adapters for VMware (VMnet1 and VMnet8). The three entries (for example, the host VMnet1 and VMnet8) have the same subnet mask value and different IP addresses (first two segments of the IP addresses are the same, third and fourth segments are different).

  My question is, what are VMWare network cards and I have to pay attention to these IP addresses when I manually configure networking on the virtual machine?

  VMware Player provides essentially 3 types of network connections:

  • 'The bridge' - directly connected to your router
  • "Host-Only' (VMnet1) - limited to the host and the virtual machines network
  • "NAT" (VMnet8) - network address translation

  VMnet1 and VMnet8 virtual cards that allow the host to communicate with the virtual machines and vice versa.

  Depending on if your virtual machine should be accessible from other systems, you can consider using (in - and outgoing) Bridged or NAT (outgoing mail). With Bridged networking, addresses are usually provided by your router/DHCP server. For NAT, the address of the gateway/DNS is 192.168.x.2. Since the VMware Server DHCP internal for NAT and Host-Only uses 192.168.x.128... 254 for dynamic addressing, you want to select a static address in the 192.168.x.3... range 127.

  The easiest way to find out how to correctly configure the network, must first set the operating system to DHCP, note gatherings settings and then just choose another IP address when you configure static settings.

  André.

• Plan load and Virtual Machine Java

  Hello
  
  We are thinking using ODI 11 g workload, but I have a question about their behavior.
  Suppose I have a support plan that launches 2 scenarios in parallel with autonomous agent.
  
  ODI will launch 2 Java Virtual Machine "as if we just run commands 2 ODI (startscen.bat)" or it will use only 1 Virtual Machine?

  In terms of support, both scenarios will be launched with their own session ID. They are independent, with the exception of all the constraints you apply in terms of load. If they are in a parallel step, both scenarios will work in parallel, in different sessions, as if they had been executed individually batch files.