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Unable to mount the datastore on ESXI host with message: This host does not support ATS, or ATS initialization failed


Host has lost connection with the data store.

In the vmkernel.log you see message similar to:

2017-01-31T20:49:15.992Z cpu13:34177 opID=e922c397) [HB state abcdef02 offset 3616768 gen 33 stampUS 17643062981621 uuid 5783c299-eea160ad-aae8-e0db550386c6

jrnl <FB 0> drv 14.61 lockImpl 4]

2017-01-31T20:49:15.992Z cpu13:34177 opID=e922c397)WARNING: FSAts: 1498: Denying reservation access on an ATS-only vol 'SYN01'

2017-01-31T20:49:15.992Z cpu13:34177 opID=e922c397)WARNING: HBX: 2227: ATS-Only VMFS volume 'SYN01' is not mounted. This host does not support ATS, or ATS ini

tialization failed.

2017-01-31T20:49:15.992Z cpu13:34177 opID=e922c397)WARNING: HBX: 2240: Failed to initialize VMFS distributed locking on volume 56f52615-c7d247e4-e688-90b11c26

8865: Not supported

2017-01-31T20:49:15.992Z cpu13:34177 opID=e922c397)Vol3: 3147: Failed to get object 28 type 1 uuid 56f52615-c7d247e4-e688-90b11c268865 FD 0 gen 0 :Not support


2017-01-31T20:49:15.992Z cpu13:34177 opID=e922c397)WARNING: Fil3: 2469: Failed to reserve volume f530 28 1 56f52615 c7d247e4 b190e688 6588261c 0 0 0 0 0 0 0

  1. Run below command to check the locking mode.

    [root@host108:~] esxcli storage vmfs lockmode list

    You see output similar to:

    Volume Name UUID Type Locking Mode ATS Compatible ATS Upgrade Modes ATS Incompatibility Reason

    ----------- ----------------------------------- ------ ------------ -------------- ----------------- ---------------------------

    datastore1 5714d652-9d35c588-8184-a4badb2db0d4 VMFS-5 ATS+SCSI false None Device does not support ATS

    SYN01 56f52615-c7d247e4-e688-90b11c268865 VMFS-5 ATS true No upgrade needed

    SYN02 578356c4-5abc30bc-2cbd-a4badb2db0d4 VMFS-5 ATS+SCSI false None Device does not support ATS

    SYN03 57835724-1494af5a-ff89-a4badb2db0d4 VMFS-5 ATS+SCSI false None Device does not support ATS

    SYN04 57835750-afdce504-9a68-a4badb2db0d4 VMFS-5 ATS+SCSI false None Device does not support ATS

  2. Unmount the VMFS datastore from all the ESXi hosts which are using it and keep it mounted to the ESXi on which its locking mode is showing as ATS.
  3. Run the below command to set the locking mode to ATS+SCSI

esxcli storage vmfs lockmode set -s -l VMFS_label

After running the above command, all the ESXi hosts which were not able to see the datastore will be able to see it now.


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