ESXi new install; failed to create new Datastore

Well I booted up a new server, created a new logical drive, bot ESXi and Failed to create datastore… what is this?

Google help? Yeah Forms help.

1. Show connected disks.

ls -lha /vmfs/devices/disks/

(Verify the disk is seen. You will probably see your disk ID then :1. This is a partition on the disk. We only need to work about the main disk ID.)

Neat. next

2. Show the error on disk.

partedUtil getptbl /vmfs/devices/disks/(disk ID)

(It will probably indicate that the GPT is located beyond the end of the disk.)

Ohhh yeah, huh… fix it

3. Wipe disk and rewrite with a basic MSDOS partion.

partedUtil setptbl /vmfs/devices/disks/(disk ID) msdos

(The output from this should be similar to msdos and the next line will be o o o o)

Go to create data store after this, yay it worked. Please note to use your own values, images are just for reference.

*UPDATE* I went to reuse some old drives from an old RAID controller. In this case I had removed the logical drive from the old RAID configuration, pulled the disks. Since they were same Caddy as an alternative server, and went on to create some new logical drives to use as an alternative datastore on this particular host.

In the examples above, it would fail at creation of the datastore. In this example it failed at the point in the wizard to define the partition to create. with an error as follows:

“Either the selected disk already has a VMFS datastore or the host cannot perform a partition table conversion. Select another disk” in a nice red banner.

Now attempting My usual fix as mentioned above resulted in…

… to be updated (i have such a headache right now from the endless issues)

Had to clear the drives to fix this problem (delete logical drive) rip Drives out of server, use a USB enclosure to use “diskpart” and the “clean command on windows to clean the drives.

Then after that the health light on the server went off, saying my one disk or caddy is “unauthentic” even though it was just working. Apparently terrible engineer caddy’s.

Which to find out this issue I had to get into iLO which the admin password was unknown so had to run up my old blog post to get into that. and now after all that.. I have a headache.

Good job computers, you managed to make my day fantastic… again.

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