Thank you for your fast answer.
When i unterstand the threads right the Delayed ACK is a network problem but i don´t have network storage.
My HDD is directly attached to the internal SATA Controler.
t10.ATA_____SAMSUNG_HD203WI_________________________S1UYJ1LZ110488______ vmhba33:C0:T1:L0
under storage adapters the disk is mountet.
under storage the datastore is shown as inactive and not mountet
Have you any over idea??
Thanks
Michael