Probability is high, that your setup indeed does not allow write access to the target for VMWare. Please check target parameters (e.g. demo_mode) and / or ACLs. Bodo On 28.12.20 18:40, Björn Wiggert (wiggert.it) wrote: > Hi, we are running > * QNAP NAS > * Debian 10 > * Host VMware 6.7U3 Hypervisor > > a) Exporting an iSCSI-LUN-target with the QNAP, what is using LIO therfor, and accessing it from VMware (read/write) works fine. > b) Exporting an iSCSI-LUN-target with a fresh Debian 10 using LIO and accessing it with a Windows 7 iSCSI initiator (read/write) works fine. > > Using the target b) (Debian 10 / LIO) and the initiator a) (VMware v6.7) works as far as > * VMware sees the target host > * VMware can login and sees the target > * VMware can READ the data on the LUN (sees partition table, size of it, partition types, etc) > > As soon as we try to write anything VMware reports > >> 2020-12-28T14:36:00.775Z info hostd[2098690] [Originator@6876 sub=Partitionsvc opID=esxui-2f96-fbd9 user=root] Status : 255 Output: gpt 0 0 0 0 >> >> Error : Error: Read-only file system during write on /dev/disks/naa.60014054b666e78a1c443ee941c60e3e SetPtableGpt: Unable to commit to disk > > > and the Debian 10 box reports: > >> kernel: [ 80.210044] TARGET_CORE[iSCSI]: Detected WRITE_PROTECTED LUN Access for 0x00000000 > > I don't recognize why VMware mounts the iSCSI LUN read-only but Windows 7 mounts it read-write and VMware mount the QNAP-iSCSI-LUN also read-write. > > I appreciate any hint - thank you therfor in advance. > > Jan > > >
