What happens if vcenter fails?

Similar Questions

• VSA and what happens if Vcenter falls down?

  Hi, im specing a vmware project and we will use VSA and wanted to get the opinion of peoples

  Option 2 is to go with a two host or a three node host.

  In the node option 2 host, I would need a third vCenter server and act as the tiebreaker in a failure scenario

  With the option of node 3 host I was running on one of the three hosts vcenter

  IM leaning more towards option two node because of the storage.

  Ive price on some Dell servers, and I am planning purchase servers that can have up to 8 disks in them, and im going to use all 8 disks with Raid 5.  If in the end im planning to have Abu 3.6 TB of space used on each server.  I intend maxing out the storage, so I won't be able to extend the storage later.

  Since VSA reflects things, guests 2 or 3 guests have not give me more space.  So in the end, no matter what option I'm going with evil have almost 3.6 TB of usable space after VSA things mirrors

  I plan buy 2 processors in each server with 64 GB of memory for each server.  I think I ran out of storage before having more cpu and memory, so im thinking the option three node would be wasefull

  If lead hosts 2 will probably be about $10,000 each, in order to get a third one which would not really be used seems exaggerated

  So I can just spend $3,000 and get a vCenter Server

  But what happens if the Vcenter server has a hardware failure.

  I know in Vshpere the computers physical hosts have all failover so HA will work again and so on so im not worried about that

  But if Vcenter is down, which will have harmful effects on the VSA of things part?

  Thank you

  Mike

  Nothing happens to the ASB if vCenter down - she keeps using data.  You will not be able to manage the ASB, but you will lose access to the data.

• What happens if the network goes down when the broker DataGurad (with fast failover) is configured?

  Hello Experts,

  We have configured Dataguard in our environment, now anxious as the broker. But we have some queries.

  1. what happens if primary fails (failover or passage)?

  2-if failover occurs, go back manually when the primary is available?

  3-if Eve falls down, how would react broker?

  4 - If the network goes down (for any reason) for some time, observer cant find primary and standby, how would he react then?

  Please help me with your advice.

  Thank you and best regards,

  Vignacourt zerwali.

  Hi David,

  Let me put in a way if I understand your question. So, you have broker + observer configured in your environment. FSFO occurred which means your watch becomes primary and is running. Then after some main real-time is alive and what will be the observer will do here. ? right. ?,...

  If my interpretation is correct, here is the answer,

  (i) when the old primary remains alive, just bring up the State. The observer resets automatically (if its market) the database, bounce the old primary and synchronize with the new primary (i.e. your old database pending). But remember that your old primary will undergo sleep role yet...

  After the process described above,

  (II) If you want that your old primary again, we have to do a manual failover to get your old configuration.

  Hope he would have deleted you. !!

  Kind regards

  Pradeep. V

• What happens if the vCentre server fails

  We will have two hosts ESXi in a center of blade HP c7000 with a distributed vswitch

  The vCenter software will install a separate physical machine with the stroed in the database on our SQL2005 server again a separate physical host.

  A few questions on this configuration.

  1. what happens if the vCentre server loses the connection to the database server?

  2. what happens if the vCentre server loses the connection with the center of HP Blade?

  3. what happens if the vCentre loses the connection with the database server and the Server Blade HP?

  The biggest concern we have is if all the foregoing happen our system will fall, not being able to accessed from the main network, and since it will be the host of our messaging platform I'm eager to get this right.

  Thank you

  Kimble

  The configuration you describe will not let you take advantage of VMware HA because VMware HA will still work even if vCenter isn't up - so if the virtual hosting machine a vCenter runs in a HA cluster the VM resumes if the host it will run on fails.

  If you find this or any other answer useful please consider awarding points marking the answer correct or useful

• What happens if the controller fails?

  Hello

  It is a fundamental issue. What happens if wireless controller (4404) fails? All APs will be going down too, or only new users will not access not the wireless network?

  TIA

  Alex

  It's really one depends on these issues.  If of the AP is in local mode and it is not all the other controllers available to join then the AP will go down.  If there are other controllers available as the AP could join then it move to that controller and the failure would be the process of discovery/join.

  The other option is to have the AP mode H-REAP.  When the AP is in REAP hour mode they will be keep blowing along the same when the controller is down.  There are some limitations here of course, but given that the data of the customer traffic is enabled locally at the fire AP can still flow if the controller is down.

• What happens if a disk in an ASM diskgroup fails?

  Hello

  I intend to build a server with the following configuration:

  Env: Oracle 11 g 2 (11.2.0.3), grid below 11 GR 2 (11.2.0.3) on OEL 64-bit

  For ASM starts, I will use external redundancy. I have a few questions:

  What happens if one of the disks in a diskgroup breaks down?

  Would he not available databases?

  I do a recovery of database?

  Please advise!

  Best regards

  Hello

  If RAID is configured correctly at the SAN level then no matter what failed disk will be transparent to both the database and the operating system and without recovery of the database will be required.

  It goes same for file and ASM system.

  Keep in mind that a disk as the operating system sees that it is in fact a UNIT number is usually spread over several disks on the SAN.  If a drive fails the SAN would be replaced by a hot spare, and the hot spare pool is maintained by the guys from SAN.  Also a host would have several cards HBA will multiple SAN switches and the SAN itself would have several hsarb HBA going to each of the swicth SAN, so you have redundancy all the way and not only at the level of the disc.

  Hope that makes sense.

• What happens IF we replace the default certificates for vCenter 5.1?

  Does anyone have specific vmware documents indicating what happens IF we replace the default certificates for vCenter 5.1 SSO, inventory, Web Client etc... services?

  I found this below at page 19 of https://www.vmware.com/files/pdf/products/vCenter/VMware-vCenter-Server-Single-Sign-On.pdf

  Certificates update

  When you install the vCenter Single Sign-On, each component that registers with it - including

  vCenter Single Sign-On himself - uses SSL to communicate between components and saved solutions.

  By default, SSL certificates are generated automatically by VMware installation and upgrade process

  and are sufficient for the operational security for most VMware customers.

  Some clients prefer to use their own self-signed or purchased SSL certificates. A tool has been developed to

  help the insertion of these certificates after vCenter Server installation. Because of the additional knowledge

  required to create and install self-signed certificates, we recommend that you review the following knowledge of VMware

  basis of articles:

  "Deployment and using the tool to automate SSL certificate.

  (VMware 2041600 knowledge base article)

  "Generation of certificates for use with the VMware Certificate SSL automation tool"

  (VMware 2044696 knowledge base article)

  In 10 years your vCenter starts (because of expiry of the certificate).

  Your users will see pesky warnings of SSL certificate when connecting components.

  Apart from that all traffic is always secure and encrypted with certificates by default, you have simply a chain of trust for them.

• vcenter feature will work properly if my virtual machine to vcenter fail?

  Hello

  1 if my vcenter server machine was stopped or failed and in this time if my esxi host does not HA will or not?

  2 - if a month my judgment of the vcenter server or not will work work vcenter features such as HA and drs and...?

  Best regards

  Yes, if vCenter descends from VMware HA master node will take care to restart virtual machines from the host failed to other hosts that are running.

  DRS will not work if the vCenter server is not available.

  If you keep your vCenter down for a month, then that certainly creates questions about virtual infrastructure management.

  See this URL for the list of features that works and that will not work if vCenter isn't available.

  http://www.yellow-bricks.com/wp-content/uploads/VC.PDF

  What happens if my VirtualCenter server goes down? -Yellow brick

  vCenter is low - impact VMware infrastructure. | Settlersoman - a colon in the world SDDC.

  Thank you

  Hentzien

• What happens if the master boot record to your computer is damaged?

  What happens if the master boot record to your computer is damaged?

  A. boot sequence would be lost

  B. the operating system would fail to start

  C. a series of long and short beeps will be heard when starting the

  D. the post OFFICE would not launch

  Hello

  True, and in many cases, it can be repaired:

  Try these from a Vista startup disk command prompt - type at the command prompt and press
  ENTER after each.

  Bootrec /fixmbr

  Bootrec /fixboot

  Bootrec /scanos

  Bootrec /rebuildbcd

  How to use the Bootrec.exe tool in the Windows recovery environment to troubleshoot and
  starting in Windows Vista problems
  http://support.Microsoft.com/kb/927392

  See this article here - to repair/rebuild using the Bootrec.exe tool Boot configuration data
  http://www.Vistax64.com/tutorials/163304-dual-boot-using-free-partitioning-software.html

  Sometimes using EasyBCD works when other methods are not.

  Recover the Vista or Windows 7 bootloader from the DVD
  http://NeoSmart.NET/wiki/display/EBCD/recovering+the+Vista+bootloader+from+the+DVD

  Recovering the Vista Bootloader with EasyBCD
  http://NeoSmart.NET/wiki/display/EBCD/recovering+the+Vista+bootloader+with+EasyBCD

  Repair the Windows Vista boot loader
  http://NeoSmart.NET/wiki/display/EBCD/repairing+the+Windows+Vista+bootloader

  If that works then run StartUp Repair twice the Vista boot disk, run once then
  Restart and then run again.

  I hope this helps.

• UTL_MAIL, what happens to the emails if mail server does not

  Sometimes, our mail server fails because the database is remote. What happens to these emails? They disappear, or they are in a queue to be sent when the server is accessible?

  Harry

  If the mail server is really unresponsive, then the attempt to send the email will throw an exception (probably indicating that he doesn't seem to be an SMTP server running on the port that is specified on the specified server).  At least the code that sends an email to catches this exception and writes the message in a table (or a queue) for further processing, the message would be lost.

  Of course, you could mean many things by "no answer" that would produce a different response.  It is quite possible, for example, a mail server may be upward and accept new messages while having a problem sending outbound messages, for example, in which case the mail server would generally queued messages which he accepted for later delivery.

  Justin

• Guide of vSphere 6.0 of hardening - what happened?

  Hello

  I use the Guides of hardening for a number of years and just opened the 6.0 version of discover significant changes brewing?

  The Guide is is no longer divided into tabs depending on the technology Area (ESXi, VM, vCenter, SSO etc.) but they are all in a list. It's ok, but a lot are missing. There is a second document that provides additional parameters but... you pointing to the VMware Documentation. So I don't have a single document to audit my environment against...

  What happened and why the approach has changed?

  I'm not trying to be cynical and say VMware want to make it more difficult for you, so you buy Configuration Manager, but what makes it much, much harder it must be a tedious job.

  Any comments or have I missed something?

  Kind regards

  Mike

  The changes were blog on starting in Feb. I solicited feedback for months. Please read the articles of the blog for the "why".

  http://blogs.VMware.com/vSphere/2015/02/vSphere-6-0-Hardening-Guide-overview-coming-changes.html

  https://blogs.VMware.com/vSphere/2015/06/vSphere-6-Hardening-Guide-GA-now-available.html

  Mike

• What happened to the feature to get around on the artboard by pressing the space bar and dragging with the mouse?

  What happened to the feature to get around on the artboard by pressing the space bar and dragging with the mouse?

  cwalker,

  If it does not, it may be time for the list:

  Sometimes, (some) things may fail or stop working for no apparent reason. When (other) possible reasons/remedies do not work, it is perhaps a kind corruption (temporary or permanent), or even preference settings which disturbs, which can be cured with something on the following list put in place in order to provide a catch-all solution for otherwise intractable cases. It starts with a few easy suggestions and safe) 1 and 2) for cases less serious and goes two ways 3) and 4) to reset the default preferences (easily but irreversibly and more laboriously but more completely and also reversible), then follows a list 5) various other possibilities, and it ends with a complete reinstallation 6). If no other suggestion doesn't work, or if no other suggestion appears, you can start on the list and decide how to go or who can apply.

  The following is a general list of things, try when

  (A) the question is not in a specific file,

  (B) you have a printer installed, connected and turned on if it's a physical printer (you can use Adobe PDF/Acrobat Distiller as a printer by default without the need to have a printer on, of course you will need to specify when you really need print on paper), and

  (C) It is not caused by problems with opening a file from external media (see below).

  You tried/made some of them already; 1 and 2) are easier for temporary strangenesses and 3) and 4) specifically may be corrupted/inconvenient preferences); ((5) is a list in itself and 6) is the last resort.

  If possible / there is, you must record a current work first, of course.

  (1) close Illy and open again.

  (2) restart the computer (you can make up at least 5 times);

  (3) close Illy and press Ctrl + Alt + Shift / Cmd + Option + shift during startup (easy, but irreversible);

  4) move the folder (follow the link with this name) with closed Illy (more tedious but also more thorough and reversible), for CS3 - CC you can find the file here:

  https://helpx.Adobe.com/Illustrator/KB/preference-file-location-Illustrator.html

  5 look through and try the relevant among the other options (click on the link with that name, item 7) is a list of the usual suspects among other applications which can disturb and confuse Illy, point 15) applies to the maybe CS5, CS6 and CC);

  Even worse, you can:

  6 (A) uninstall (check the box to delete the preferences, if any), B) run the cleanup tool (if you have CS3/CS4/CS5/CS6/CC) and C) reinstall. It is important to use this step three way: otherwise, things may persist.

  http://www.Adobe.com/support/contact/cscleanertool.html

• ESXi Trial - what happens then?

  Hello

  First of all, what I am trying to build is a small laboratory at home that I can use to test some Microsoft server products. I already used vmware esxi but mainly used and installed Xen server for the last 4-5 years. I mainly use a NUC Intel and a small SAN storage (category House). But any means this is a production environment of all kinds.

  So, I started a new Eval of vSphere 6, downloaded and installed ESXi ISO image (includes VMware Tools) later at the time of writing (2015-07 / 07 | 6.0.0b | 348,50 MB | iso)

  Installed client tools and successfully connected to the host running on the NUC esxi. I was warned that the server is not an appropriate license and started the 60-day trial. I intend to install vSphere vCenter Server to a trial as well.

  Doubt / my question is: what happens to the expiration of the 60 day trial with ESXI installation? I understand that vCenter will stop working and I'm happy with the one that 60 days will be enough for me to trial it and because Im only build a laboratory of a host, there is not much anyway that I will conduct trials.

  However, I don't want to continue to use the laboratory that will perform on the ESXI host after the expiry of the 60 day trial. I remember on previous versions, there was a free version of the hypervisor. I hope that has not changed, otherwise I'll stick to other hypervisors.

  Thank you @Crashthegooner.

  I actually find myself responses on other forums (outside)

  After the 60 day trial, ESXI without proper license NOT automatically turns in the free version of ESXI. Although he will continue to run, it will not allow power on virtual machines (I have will continue to operate all the virtual machines that were still in progress). Which is not ideal for my lab.

  As mentioned vCenter will stop working.

  However, there is a way to generate your license key for ESXI and begins an Eval of VMware vSphere Hypervisor 6.0 - https://my.vmware.com/group/vmware/evalcenter?p=free-esxi6

  In addition to the Eval vSphere. (if you want to evaluate vSphere, otherwise, just download the hypervisor)

  Download of the hypervisor is buried deep in the vmware Web site.

• vSAN Datastore - what happens when it meets?

  I understand that vSAN aggregates all of your capacity of magnetic disk in a datastore fat big, what happens when it fills up it kill all running virtual machines, as it normally would?  If Yes is there anything that can be done to protect said: a virtual vCenter in this server?

  See you soon!

  With VSAN a disc is an object. An object exists several components. A component is located on a disk. However, VSAN can have 1 VMDK which is an object consisting of several components. These components can cross physical disks, disk groups, and hosts even if necessary. So there is a lot of flexibility.

• ESXi USB, what happens if you then remove the USB boot?

  Hello

  Someone in our team IT wants to use ESXi 5 bootable, i.e. start an ESXi host for a 2 GB USB flash drive in order to save the cost of buying the hard drives local to a RAID set.

  I know there are a few downsides to this, but one thing I wanted to know more precisely, it is what happens to the ESXi if you remove the USB or the USB drive goes down, while the host is running. The army continues to operate, as it will be charged the ESXi image in memory? Or it will fail if it cannot see the USB as it initialized from?

  Thank you!

  ESXi will work on - running some virtual machines are not affected.

  Usually, there should be no problem to plug new - but I have seen cases where the system does not start after a rough unplug - so avoid it.