Two ESX 3.x hosts mounting to same VMFS datastore on SAN

I'm running two ESX 3.x servers with virtual center. I know that it is possible to create redundancy or high availability by configuring a clustered environment. For HA to work, both ESX hosts must mount to the same datastore on SAN. When one ESX host goes down, the other ESX can take over the VM. How do I configure the second ESX 3.5 server to mount on to an existing VMFS datastore, but the primary ESX host must still maintain its master status? Could someone explain the configuration steps?
Thanks

hello and welcome!
first question: do you have vCenter Server?
If not--> how can you create a VMWare cluster? No need to have shared storage between hosts as you may not leverage features such as vMotion and HA ( and all the dependant features)
if yes:
create datacenter(optional)
create cluster.
insert the two hosts in the cluster.
present external storage wwn or iscsi iqn to the two hosts the hosts (remember to zone / mask on the fabric)
create a VMFS volume.
also the other host will get the same partition(s)
If the external storage is NFS, repeat Mount NFS Mount point for each host; there's no need to format it as it's NFS
PS: there is no master status: VMWare cluster is not a "Failback" cluster by design. VMFS is a clustered FS that's designed for small big file and supports the "VMWare Way " of doing Clustering.
with HA you can achieve the three 9s availability. Now with FT on 5.5 you can achive 9s availability on critical VMs (max 4 per host)
Aleph
remember to give points and set the question as answered..

Similar Messages

Two separate enterprise WiFi networks in the same building

I work in a building that currently has Cisco controller based access points. The access points aren't managed by us and are actually part of another campus. We are given access to them but they don't work quite like we want them to. So we are wanting to bring in our own Cisco WLC 2504 with 3702 APs. But when we brought this up with the main campus they said we can't have two separate enterprise wireless networks in the same building. That their APs will mark our APs as rogues and try to shut them down. There was also mention that they can't share the same channel and that the radios will negotiate with each other to determine how much power they need for coverage. But from what I've read none of that is true. So maybe I misunderstanding something and hoping someone here with more experience can shed some light on this. The only reason we would want to keep their wireless in the building is so when their staff come to our office they can use it.
So can two separate WLC/AP systems on different subnets and broadcasting different SSIDs exist in the same building with out causing any issues?

By default, the WLC code does not try to contain rogue AP's. Just lots of alarm's and unclassified rogue's.
In this case you hosts may have actually enabled containment but would have also received a screen full of warning about the public nature of the unlicensed wifi band.
Here the Superior Court system is side by side with the County system even to the extent that the AP's are next to each other. Gets fun. Since each SSID constitutes a rogue, each unit represents a LOT of rogues to report.
Good Luck

I am unable to get two external LaCie drives to mount. I switched computer desks and everything was disconnected for a few days. My 2T g drive mounted with no trouble. What can I do to mount the two LaCie drives? One is a 4T, the other is 1T.

After disconnected all the computer peripherals and trading computer desks, today I can't get the two LaCie external drives to mount. They were working yesterday, but not without problems. The 1T is hooked up for Time Machine, and it ran continually yesterday. Today it isn't mounting. The 4T showed on my mac desktop, but an error message stated it wouldn't mount. I'm not super computer savvy and really need some help. Also, the 2T g-drive is working without any problems. My iMac is an older 2008 24" aluminum model. It has been working well, but gets very hot in back. What should I try now?

How have you been connecting these drives to your iMac? USB?
Have you connected them back to your iMac the same way they were connected before? Including making sure they have the power they need?
If all the connections are just as before, and all the drives have the power they need, have you tried shutting down your iMac and starting it up from a cold start?
If you still have trouble I would ask whether you shut everything down correctly before disconnecting/unplugging/powering-down the drives. Unfortunately, it is possible that some of the drives were not disconnected or whatever in the proper manner, and, so, have become corrupted. (I'm hoping not, for your sake. However, even if so, such can be recovered, but it will take more expertise than you seem to claim for yourself.)

Do we need to create two zones for Two HBA for a host connected with SAN ?

Hi,While creating Zone , Do we need to create two zones for Two HBA for a host connected with SAN ? Or a zone is enough for
a host which having Two HBAs...We have two 9124s for our SAN fabric...
As I found like one zone below, I little bit confused that , if a host having two HBA connected with SAN, should I expect two zones for every Host?
from the zone set, I gave the command show zoneset
zone name SQLSVR-X-NNN_CX4 vsan 1
    pwwn 50:06:NN:NN:NN:NN:NN:NN
    pwwn 50:06:NN:NN:NN:NN:NN:NN
          pwwn 10:00:NN:NN:NN:NN:NN:NN
But I found only one zone for the server's HBA2:by the same time in the fabric I found switches A & B showing the WWNs of those HBAs on its
connected N port...Its not only for this server alone, but for all hosts..Can you help me to clarify on this please..that should we need to create one zone for
one HBA?

if u have two independent fabrics between hosts and storage, i think the below confs are recommended.
Scenario 1: 2 HBAs single port each ( redundancy across HBA / Storage port )
HBA1 - port 0 ---------> Fabric A ----------> Storage port ( FAx/CLx )
HBA2 - port 0 ---------> Fabirc B ----------> Storage port ( FAy/CLy )
Scenario 2: 2 HBAs of dual port each
HBA1 - port 0 -------> Fabric A ---------> Storage port ( FAx/CLx )
HBA2 - port0 ---------> Fabric A ---------> Storage port ( FAs/CLs )
HBA1 - port 1 --------> Fabric A --------> Storage port ( FAy/CLy )
HBA2 - port 1 ---------> Fabric B --------> Storage port ( FAt/CLt )
the zone which is in your output is VSAN 1. if its a production VSAN, Cisco doesn't recomends to use VSAN 1 ( default vsan ) for production.

Two or more people editing at the same time

Dear All,
I am planning to purchase FCP Server, and I am just in a very beginning of consideration.
Immediately, I am wondering if FCP Server can let two or more people editing on the same project at the same time.
I know it has Check-in function, and it seems to me that it just takes the project to another computer to do editing. What if another person wants to do editing on the same project?
Also, if it allows us many people to do editing on the same project, can we save the project at the same time on the same computer installed FCP Server?
Please advise.
Many thanks in advance.
King

In Final Cut Server (FCSvr) checking out a Final Cut Pro project (FCProj) creates a copy of the project file at a location you specify saving it to on your local computer. When you check out a FCProj, the project asset is locked and cannot be modified by other users. Additionally, every media asset that is used in the project is locked from being modified by other users.
However in a you're trying to have multiple users work on and edit the same project, I'd suggest start by duplicating the FCProj asset within FCSvr. Maybe start with a master capture / digitize project that contains all the media needed to work on by both editor. This will allow for multiple editors to have access to the same project media assets. In any scenario where multiple editors are collaborating, I'd suggest have them also work on separate project file and maybe split / divi up the work, based on scene, act etc.
Sequences can be easily merge between project later.
Hope this helps.
Nicholas Stokes
XPlatform Consulting
< Edited by Host >

If you registrate one Apple ID for each iPhone/iPad, you'll get 5GB on iCloud for each Apple ID, right? I have two iPhones and one iPad with the same Apple ID, why can't I get 5 GB fo each of them?

If you registrate one Apple ID for each iPhone/iPad, you'll get 5GB on iCloud for each Apple ID, right? I have two iPhones and one iPad with the same Apple ID, why can't I get 5 GB fo each of them?

Actually, everyone missed one point, when a device is priced, the cost of icloud storage space for that device is also included in it that is why they are able to give you 5gb each for each user ID, in nutshell there is nothing free coming with apple device purchase, it is paid for. What they are trying by giving only 5gb per user ID irrespective of the number of devices used is pure broadlight looting, they take money from you when you buy each device and give you nothing, This is a case of goods and services bought but not fully deliverd ie apple can be suied for discreminatory treatment towards it's users. I wonder why no one tried this yet in America where everyone sue everyone for petty things..... there is no one to take up this issue? . if tim got any love for the guys who shell out money for the devices his company makes, he should be implimenting this as priority before someone wake up from sleep and sue him.

I used to open many tabs in the same page and i move from one to other by mouse but since3 two days the tabs open in the same page normaly but i can't move from one to other when i clik with mouse on any tab it don't open/ do u have any solve for this?

i used to open many tabs in the same page and i move from one to other by mouse but since3 two days the tabs open in the same page normaly but i can't move from one to other when i clik with mouse on any tab it don't open/ do u have any solve for this

Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do not click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

I have two devices (Iphone and Ipad) on the same Apple ID. When I go to Icloud and click at the "find Iphone" I see only one of my devices. How can I do to see both of them?

I have two devices (Iphone and Ipad) on the same Apple ID. When I go to Icloud and click at the "find Iphone" I see only one of my devices. How can I do to see both of them?

Obvious question, but have you got 'Find My iPhone' set on both devices? Settings>iCloud>Find My iPhone.

I have two Macs and I am using the same Apple ID on both. All of my info, history etc is showing up on both. How do I turn this off?

I have two Macs and I am using the same Apple ID on both. All of my info, history etc is showing up on both. How do I turn this off?

You likely have iCloud turned on in at least Safari. If you don't want Safari to sync between these devices turn one of them off. System Preferences - iCloud - Safari (uncheck the box)

We have two Apple ID's but share the same computer....that runs Itunes...How do i setup Icloud for ea. user ID?

We have two Apple ID's but share the same computer....that runs Itunes...How do i setup Icloud for ea. user ID?

You can't merge Apple IDs. What you could do is set up your phone to use the same iCloud accout you are using on your Mac. To do this, go to Settings>iCloud and turn all synced data (Contacts, Calendars, etc.) to Off. When prompted, choose to keep the data on the phone. When everything is off, scroll to the bottom and tap Delete Account. Now add the iCloud account you set up on your Mac (with the same Apple ID) and turn syncing back on for Calendars, Contacts, etc. When prompted, you will probably want to choose merge, to merge the data on your phone with the existing data on this iCloud account.

Can I sync two ipods with different ID on the same computer?

can I sync two ipods with different ID on the same computer?

Hi,
Yes you can as long as you have two seperate user accounts on your computer. Hope this helps.
xxmitchxx90

Why can't two different users use Itunes on the same computer with different log ins

Why can't two different users use Itunes on the same computer with different log ins

Pmorgan5672 wrote:
Why can't two different users use Itunes on the same computer with different log ins
They can, but not at the same time.
If one user left iTunes running, and another user tries to use iTunes from a different Windows user ID, that second user will get an error message. If they really want to use iTunes, they either have to beg the first user to log in and close iTunes, or else they have to restart the computer.
If you are asking the technical reason why, it is something about context switching.

How do I set up two iPods (nano and touch) on the same computer?

I have to configure two Ipod (touch and nano) on the same computer but with two different music libraries. It can be done?How?
Thank

See:
How to use multiple iPods, iPads, or iPhones with one computer
and this previous discussion:
What is the best way to manage multiple...: Apple Support Communities

Can I have two active versions of JRE on the same PC?

Some one please advice me if I can keep two different versions of JRE on the same PC running under Win NT. I have to use one version(1.2.2) of JRE for running an application and a later version(1.3) for running some other applications.
I tried to install both and when I checked the registry entries, only one verion seems to be active at a time. Is there any workaround?
thanx,
Anoop.

Multiversion support is available in JDK 1.4.
You can download JRE 1.4 Beta 3 from http://java.sun.com/j2se/1.4
and test this functionality.
The following url discusses this topic in detail with a mix of version 1.3 and 1.4 examples. Similarly, you can have a mix of version
1.2 and 1.4 also for your needs.
http://java.sun.com/j2se/1.4/docs/guide/plugin/developer_guide/version.html
Hope this helps.
Cheers!
Sun-DTS

Can I use one Apple TV device on two different HD televisions to view the same info from a mini Mac?

Can I use one Apple TV device on two different HD televisions to view the same info from a mini Mac?

Welcome to the Apple Community Lschaef5318.
You need one Apple TV for each TV.

Two ESX 3.x hosts mounting to same VMFS datastore on SAN

Similar Messages

Maybe you are looking for