Suddenly having an issue backup up VMs on VMWARE using Veeam B&R (up to date).
The backup fails with the error: Processing SERVER Error: VM 'SERVER' (ref: 'vm-68') is 'Disconnected'
The VM is not disconnected but in the logs I see:
2019-11-19T10:45:18.719Z cpu3:2097837)NMP: nmp_ResetDeviceLogThrottling:3519: last error status from device eui.00e04c2020202000 repeated 2 times
2019-11-19T10:45:51.715Z cpu0:2097191)NMP: nmp_ThrottleLogForDevice:3689: Cmd 0x9e (0x459a9389a840, 0) to dev "eui.00e04c2020202000" on path "vmhba32:C0:T0:L0" Failed: H:0x7 D:0x0 P:0x0 Invalid sense data: 0x0 0x0 0x0. Act:EVAL
2019-11-19T10:45:51.715Z cpu0:2097191)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "eui.00e04c2020202000" state in doubt; requested fast path state update...
2019-11-19T10:45:51.715Z cpu0:2097191)ScsiDeviceIO: 3029: Cmd(0x459a9389a840) 0x9e, CmdSN 0x251fc from world 0 to dev "eui.00e04c2020202000" failed H:0x7 D:0x0 P:0x0 Invalid sense data: 0x0 0x6e 0x73.
2019-11-19T10:45:51.724Z cpu3:2097194)WARNING: NMP: nmp_DeviceRequestFastDeviceProbe:237: NMP device "eui.00e04c2020202000" state in doubt; requested fast path state update...
When the back tries to run.
The storage is iSCSi presented on 10GB Ethernet dedicated links.
NAS is alive and well and operating normally and is a Synology RS3617xs+ running latest DSM Image.
The host, the VM and the NAS have all been rebooted.
What is happening to cause this error?
Is the device "eui.00e04c2020202000" / "vmhba32:C0:T0:L0" the iSCSI LUN where the VM is located? If so, how many paths do you see for this LUN?
Which vCenter and ESXi Version are you running?
Are other hosts / VMs in your cluster also effected?