Author: anthonypoh

IT Geek?!?

Upgrading vCenter Server

Just a quick post today as I've had numerous clients call me recently regarding the same issue with upgrading their vCenter Server.....If you're upgrading from vCenter Server 5.5 to a later addition (like 5.5 update 1c), then if you mount the ISO and try to update vCenter using the "Simple Install", the installer will probably display … Continue reading Upgrading vCenter Server

Has your root password for your vCenter Server Appliance expired? No problems, check out this KB!!

So it slipped my mind that the root/admin passwords for the vCenter Server Appliance expires after 90 days by default..... and when I tried to access the admin webpage today in my demo environment so that I could update the appliance, I couldn't log in...... dammit.....!Surprisingly this must be a really common issue with customers … Continue reading Has your root password for your vCenter Server Appliance expired? No problems, check out this KB!!

VM displays to two port groups after migrating to a distributed vSwitch

Do you ever encounter the same issue over and over again and forget how you solved it the first time, or what caused it to happen in the first place?!? It happened to me today on a customer site..... we were migrating a couple hundred VMs off a standard vSwitch onto a newly created Cisco Nexus … Continue reading VM displays to two port groups after migrating to a distributed vSwitch

vSphere Patch released to resolve APD errors

Finally VMware have patched the problem with the previous vSphere update that ended up causing All Paths Down errors with NFS storage which I blogged about here: https://thevirtualunknown.wordpress.com/2014/04/24/intermittent-nfs-all-paths-down-on-esxi-5-5-u1-upgrade/ ESXi 5.5 Express Patch 04 has resolved this issue and so any customers with NFS storage should be able to safely patch their VMware environment to resolve the … Continue reading vSphere Patch released to resolve APD errors

Intermittent NFS All Paths Down on ESXi 5.5 U1 upgrade

Those of you using NFS storage and planning to upgrade to the latest version of vSphere - 5.5 U1 - please hold off your upgrades as there is a bug within the code which is currently causing issues on paths to NFS volumes. The bug causes the intermittent loss of connectivity, which can lead to … Continue reading Intermittent NFS All Paths Down on ESXi 5.5 U1 upgrade

VMware Product Updates – OpenSSL Vulnerability (Heartbleed)

If anyone is concerned about the OpenSSL Vulnerability that was highlighted earlier this month, then pop along to the Security Advisory below: http://www.vmware.com/security/advisories/VMSA-2014-0004.html   Updates for the majority of VMware products to combat the "Heartbleed" vulnerability is now available..... Please note that post upgrade of products, you will need to regenerate the OpenSSL certificates! vCenter … Continue reading VMware Product Updates – OpenSSL Vulnerability (Heartbleed)

Thick Provisioned virtual disks – Eager or Lazy?

It's been a while since I posted anything, and that's just mainly down to how busy I've been since the turn of the new year!!I guess it's good to be busy as it occupies the mind! =)Although really busy, the MTI TAMs still managed to fly over to Cork to visit EMC's factory..... it was … Continue reading Thick Provisioned virtual disks – Eager or Lazy?

Site Recovery Manager SSL error

Recently had to regenerate the SSL certificates on my vCenter Server Appliance as I had noticed they were originally created with localhost.localdom as the DNS name. Quite easy to regenerate the SSL certs, just log onto the admin page of the vCSA (http://ip-address:5480) and log in as root. Click on the Admin tab and by Certificate regeneration … Continue reading Site Recovery Manager SSL error

vCenter Site Recovery Manager – Shared Recovery Site

So a lot of customers use Site Recovery Manager as the tool to automate their Disaster Recovery Policy, usually it's deployed on an one-to-one relationship - i.e. a single protected site and a single recovery site where the SRM/vCenter server on the protected site is paired to a SRM/vCenter server on the recovery site. Not … Continue reading vCenter Site Recovery Manager – Shared Recovery Site