VMFS Datastore could not be mounted after Disk Hardware error

[MCTAG]

Hello

I Have a HP DL380p G9 Server.

At The Weekend the Server Disks crashed.

The Server have 5 Disks in a Raid 5.

One of the Disks are Faild and one is on Predictive.

I have the defect Disks exchanged with new one.

The locical disk is accessible again.

On ESXI i see the scsi Disk:

But i can't mount the VMFS partition as Datastore.

If i add a new Storage, esxi wants to format the VMFS partition.

thanks for Help

Michi

[MCTAG]

I Found in the Log this Error:

2018-05-09T04:25:11.517Z cpu28:33214)NMP: nmp_ThrottleLogForDevice:3178: Cmd 0x85 (0x43a587c09e80, 34538) to dev "naa.600508b1001c37021e185e3b32b56047" on path "vmhba1:C0:T0:L1" Failed: H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0. Act:NONE

2018-05-09T04:25:11.517Z cpu28:33278)ScsiDeviceIO: 2646: Cmd(0x43a587c09e80) 0x4d, CmdSN 0x2d from world 34538 to dev "naa.600508b1001c37021e185e3b32b56047" failed H:0x0 D:0x2 P:0x0 Valid sense data: 0x5 0x20 0x0.

[MCTAG]

I get the following message via ssh

esxcfg-scsidevs -m

VmFileSystem: fsUUID is null, skipping

I do not know if that's good or not

[continuum]

Hi Michi
> fsUUID is null
That does not sound good. Please read my notes here:
Create a VMFS-Header-dump using an ESXi-Host in production | VM-Sickbay
If you provide such a header dump I maybe able to extract the VMs even when the VMFS-filesystem is damaged.
Feel free to call me via skype "sanbarrow" - ich spreche deutsch.
Ulli