Apologies to have not answering on the answer of AT10.
And thanks for these answers, AT10 and AakashJ.
the command partedUtil setptbl "/vmfs/devices/disks/naa.600605b00581fb6018c09f852081693a" gpt "9 115087360 4087881694 AA31E02A400F11DB9590000C2911D1B8 0" didn't work either.
Same error of Read-only.
I decided to give away on multiple partitions because of this : VMware do not support creating multiple vmfs partition from single disk.
I had extended the last partition to 4087881694. by this command : partedUtil resize "/vmfs/devices/disks/naa.600605b00581fb6018c09f852081693a" 3 10229760 4087881694
then i created one datastore
vmkfstools -C vmfs5 -b 1m -S DATASTORE /vmfs/devices/disks/naa.600605b00581fb6018c09f852081693a:3
For my initial problem, i decided to use new hardrive in the VM and use multiwriting and then create the partitions in it.
To answer to AVT123, your command seemed correct.
It's similar to my case except i did a extension where you tried to create another partition.
Do you try with another partition number as 9 per example ?
Regards.