Update: Below is a recent (2021) video I did on the process in vSphere 7.0:īefore you even consider nuking a LUN from your SAN, you’ll want to ensure all VMs, templates and files have been migrated off. Today, I’ll be decommissioning an SSD drive from my freenas server, which will require me to go through these steps. Despite these improvements, you still don’t want to yank storage out from under your hypervisors. VMware has made many strides in these areas, including better host resiliency in the face of APD (all paths down) events, as well as introducing PDL (permenant device loss) several years back. Often hosts would become unmanageable and reboots were the only way to recover. ESX 4.x was particularly bad when it came to handling unexpected storage loss. Having done a short stint on the VMware storage support team, I knew all too well the chaos that would ensue after improper LUN decommissioning. Unfortunately, improper LUN removal is still something I encountered all too often when I worked in GSS years back. This is admittedly a well-covered topic in both the VMware public documentation and in blogs, but I thought I’d provide my perspective on this as well in case it may help others.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |