Error: MDM failed command. Status: Found an invalid device header signature

Question

Hello, I try to add a new device to my ScaleIO POC, but I get the following error message : # scli --add_sds_device --device_path /dev/sdy --device_name sdy --sds_ip 10.0.5.112 --storage_pool_name POOL_72K Error: MDM failed command.  Status: Found an invalid device header signature I've reinstalled my POC from scratch without removing this disk from the previous Scaleio installation. Could it be the problem ? If yes, how can I force Scaleio to add this device ? Thanks Daniel

tomer__engineer · Accepted Answer

If you are using v2.0.0 there are 2 option:

1. If you are using the IM to install: there's a flag that can be inserted in the gatewayUser.properties to overcome this

2. If you are doing manually via SCLI: add the following flag to the 'add_sds_device' [--force_device_takeover] -> you can see that also in the command's usage/help.

If you are using v1.32.X I believe you need to format the disk (zero it)

dhz1 · Answer

I use 1.32 I've reformatted the disk and now I can add it to the sds. Thanks a lot Daniel

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