Failed to create VMFS datastore Cannot change the host configuration.

[Nahuel_TKN]

Hi´Communitie, 

This is the case, We where trying to add a Datastore from a Nimble Storage to our Hosts (ESXi 6.7 Upd3) Through iSCSI ...the initiarios are ok, the hosts see the created Lun, but when trying to create the Datastore VMFS, it fails with the error:

Cannot change the host configuration.

this is VMkernel Log:

[root@SAR-ESX-01:~] dcui
2021-03-20T18:53:45.022Z cpu50:2867175)WARNING: VisorFS: 1093: Attempt to setattr non sticky dir/file from tar mount
2021-03-20T18:53:45.665Z cpu6:2867177)WARNING: VisorFS: 1093: Attempt to setattr non sticky dir/file from tar mount
2021-03-20T18:53:45.665Z cpu6:2867177)WARNING: VisorFS: 1093: Attempt to setattr non sticky dir/file from tar mount
2021-03-20T18:53:45.665Z cpu6:2867177)WARNING: VisorFS: 1093: Attempt to setattr non sticky dir/file from tar mount
2021-03-20T18:53:45.671Z cpu6:2867177)WARNING: VisorFS: 1093: Attempt to setattr non sticky dir/file from tar mount
2021-03-20T18:53:46.535Z cpu28:2097857)WARNING: iscsi_vmk: iscsivmk_TaskMgmtIssue:633: vmhba68:CH:3 T:0 L:4 : Task mgmt "Abort Task" with itt=0x2567 (refITT=0x2565) timed out.
2021-03-20T18:53:52.234Z cpu64:2098396)WARNING: iscsi_vmk: iscsivmk_StopConnection:699: vmhba68:CH:3 T:0 CN:0: iSCSI connection is being marked "OFFLINE" (Event:4)
2021-03-20T18:53:52.234Z cpu64:2098396)WARNING: iscsi_vmk: iscsivmk_StopConnection:700: Sess [ISID: 00023d000004 TARGET: iqn.2007-11.com.nimblestorage:gr-sar-dds-nimble-g12c62be7716cc1b4 TPGT: 99d TSIH: 0]
2021-03-20T18:53:52.234Z cpu64:2098396)WARNING: iscsi_vmk: iscsivmk_StopConnection:701: Conn [CID: 0 L: 192.168.96.171:53260 R: 192.168.96.185:3260]
2021-03-20T18:53:52.239Z cpu28:2097857)WARNING: iscsi_vmk: iscsivmk_TaskMgmtIssue:633: vmhba68:CH:3 T:0 L:4 : Task mgmt "Abort Task" with itt=0x2569 (refITT=0x2565) timed out.
2021-03-20T18:53:52.239Z cpu68:2816138)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "eui.15e55d133a888ffa6c9ce90053eaaa63" state in doubt; requested fast path state update...
2021-03-20T18:53:52.239Z cpu35:2097811)VMW_SATP_ALUA: satp_alua_issueCommandOnPath:735: Path "vmhba68:C3:T0:L4" (UP) command 0xa3 failed with status Timeout. H:0x5 D:0x0 P:0x0 Invalid sense data: 0x0 0x0 0x0.
2021-03-20T18:53:52.239Z cpu48:2867017)Partition: 548: Read of GPT entries (hdrlba=6442450943) failed on "eui.15e55d133a888ffa6c9ce90053eaaa63": I/O error
2021-03-20T18:53:52.239Z cpu48:2867017)Partition: 681: Read from both primary and secondary gpt table failed on "eui.15e55d133a888ffa6c9ce90053eaaa63".
2021-03-20T18:53:52.239Z cpu48:2867017)WARNING: Partition: 1261: Partition table read from device eui.15e55d133a888ffa6c9ce90053eaaa63 failed: I/O error
2021-03-20T18:53:52.240Z cpu39:2441572)NMP: nmp_ThrottleLogForDevice:3818: last error status from device<Q> Quit </> RegExp Search <H> Help

I have check creating partition succesfully with PartedUtil  ... 

[root@SAR-ESX-01:~] partedUtil getptbl /vmfs/devices/disks/eui.15e55d133a888ffa6c9ce90053eaaa63
msdos
401024 255 63 6442450944

It´s ok but nonetheless it still fails and cannot create the VMFS DS,  

What am I missing here? 

[a_p_]

Is this a new, or existing setup with the Nimble?

What confuses me is "msdos" from the prtedUtil command.
Without knowing details, it might be an otion to "reset" the partition table to GPT using
partedUtil mklabel /vmfs/devices/disks/DeviceName gpt
Please note that this command will delete any pre-existing partitions on that LUN!

André

[Nahuel_TKN]

Thanks for answering, it is a newly created Nimble Volume, I´ve tried that but it times out same as before

[root@SAR-ESX-01:~] partedUtil mklabel /vmfs/devices/disks/eui.15e55d133a888ffa6c9ce90053eaaa63 gpt

Error: Connection timed out during write on /dev/disks/eui.15e55d133a888ffa6c9ce90053eaaa63
WriteNewPtable: Unable to commit to device /vmfs/devices/disks/eui.15e55d133a888ffa6c9ce90053eaaa63

The connection through iSCSI seems ok, I see al path green, as you can see Im able to see the Lun, but it times out during the partition operation I think

[miltonbibble]

Did you ever figure this one out? I have a nimble with similar issues.