This is part 4 of this 7 part series.
The series being:
VMFS Snapshots and the FlashArray Part III: Why might a resignature fail?
This is part 3 of this 7 part series. The series being:
- Mounting an unresolved VMFS
- Why not force mount?
- Why might a VMFS resignature operation fail?
- How to correlate a VMFS and a FlashArray volume
- How to snapshot a VMFS on the FlashArray
- How to mount a VMFS FlashArray snapshot
- Restoring a single VM from a FlashArray snapshot
Continue reading “VMFS Snapshots and the FlashArray Part III: Why might a resignature fail?”
VMFS Snapshots and the FlashArray Part II: Why not Force Mount?
This is part 2 of this 7 part series. The series being:
- Mounting an unresolved VMFS
- Why not force mount?
- Why might a VMFS resignature operation fail?
- How to correlate a VMFS and a FlashArray volume
- How to snapshot a VMFS on the FlashArray
- How to mount a VMFS FlashArray snapshot
- Restoring a single VM from a FlashArray snapshot
This is a topic that I have looked into years ago, mainly in ESX 4.0 when they changed how it handled unresolved VMFS volumes by allowing it to be done selectively. I have had some customers working with array-based snapshots recently and have run into issues that prevent them from mounting them, or mounting them in the way they want. The problem is that I forgot most of the caveats from that testing because it was way before I started this blog. And as that quote popularized by Mythbusters’ Adam Savage says:
So let’s write it down to so I can’t forget it all again. That show is on its last season right now. I will certainly miss it! But anyways, I digress. Force mounting. Don’t do it and here is why.
Continue reading “VMFS Snapshots and the FlashArray Part II: Why not Force Mount?”