HPE 3PAR Change DNS Settings

I recently setup a DNS iApp on the F5 load balancers in my datacenters and felt it was time to migrate the Hewlett Packard Enterprise (HPE) 3PAR storage arrays DNS to point to this new virtual IP (VIP) rather than to the static DNS server it currently used. I will demonstrate the command line syntax for … Read more

VMware ESXi Host Long Reboot due to Fibre Channel Binding

I finally got round to looking at a problem which has existed in one of my datacenters for I guess a few years now. It’s really bothered me for a long time but I’ve just been tied up with other projects so it remained. I have two datacenters which are more or less identical in … Read more

VMware Update Manager Cannot Download Software Packages From Patch Source

I’m in the process of deploying updates to a number of VMware ESXi hosts and came across an interesting fault today. When attempting to deploy updates through VMware vCenter Update Manager (VCUM) I was greeted with the following error message – Cannot download software packages from patch source. Check the events and the Update Manager … Read more

VMware ESXi SD Card Problem with HPE Server

Recently a number of servers in my estate began to flag the following error – Lost connectivity to the device mpx.vmhba32:C0:T0:L0 backing the boot filesystem /vmfs/devices/disks/mpx.vmhba32:C0:T0:L0. As a result, host configuration changes will not be saved to persistent storage. All of the servers in question run VMware ESXi 5.5 and are Hewlett Packard Enterprise (HPE) … Read more

HPE 3PAR Interrupt Coalescing

I’m currently working on a case with HPE (Hewlett Packard Enterprise) 3PAR support with regard to excessive retransmit errors on our Remote Copy Fibre Channel (RCFC) connection between two 7400 arrays. While troubleshooting we found that a required option was not set appropriately – namely interrupt coalescing on the RCFC ports. In this post I … Read more