<div>
Have you checked your network, and completed basic checks such as <br />
<br />
1. ping from the console<br />
<br />
2. vmkping from the console<br />
<br />
to the EMC AX4 ?
</div>


Have you checked your network, and completed basic checks such as

1. ping from the console

2. vmkping from the console

to the EMC AX4 ?

<div>
Ping from Console OK!<br />
But vmkping... doesn't work!<br />
<br />
All production systems is stopped now...
</div>


Ping from Console OK!
But vmkping... doesn't work!

All production systems is stopped now...

<div>
Okay, so you need to look at your VMKernel and IP Addresses, and it looks like your vSwitches, and network interfaces on the vSwitches have become &quot;disconnected&quot;<br />
<br />
iSCSI Traffic goes through the VMKernel Port Groups, so this is good news, that you've found, this.
</div>


Okay, so you need to look at your VMKernel and IP Addresses, and it looks like your vSwitches, and network interfaces on the vSwitches have become "disconnected"

iSCSI Traffic goes through the VMKernel Port Groups, so this is good news, that you've found, this.

<div>
Ok... vswitches are connected... i tries to restart hosts, but problem persists... any other &nbsp;tip?
</div>


Ok... vswitches are connected... i tries to restart hosts, but problem persists... any other  tip?

<div>
Network problems with some problems on storage.
</div>


Network problems with some problems on storage.

<div>
<div class="content wysiwyg-content">
Hello everyone,<br />
<br />
Suddenly 3 hosts in cluster managed by vCenter lost access to Datastores stored on EMC AX4 , I used Navisphere and I can see that the hosts are registered but shows &quot;&nbsp;not connected &quot;&nbsp;. In ESXi I made several attempts to solve the problem . Any suggestions?
</div>
</div>


Hello everyone,

Suddenly 3 hosts in cluster managed by vCenter lost access to Datastores stored on EMC AX4 , I used Navisphere and I can see that the hosts are registered but shows " not connected " . In ESXi I made several attempts to solve the problem . Any suggestions?

Esxi can't connect to iSCSI EMC AX4

VMware, a software company founded in 1998,  was one of the first commercially successful companies to offer x86 virtualization. The storage company EMC purchased VMware in 1994. Dell Technologies acquired EMC in 2016. VMware’s parent company is now Dell Technologies.

VMware has many software products that run on desktops, Microsoft Windows, Linux, and macOS, which allows the virtualizing of the x86 architecture.  Its enterprise software hypervisor for servers, VMware vSphere Hypervisor (ESXi), is a bare-metal hypervisor that runs directly on the server hardware and does not require an additional underlying operating system.