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1362
December 13th, 2015 22:00
Adding device errors Found an invalid device header signature
Hi
I am attempting to add a new disk to an SDS using this command:
scli --add_sds_device --sds_ip 10.2.201.197 --storage_pool_name esx --device_path /dev/sdd
It replies with:
Error: MDM failed command. Status: Found an invalid device header signature
And /opt/emc/scaleio/mdm/bin/showevents.py -a reports:
1489 2015-12-14 01:44:52.430 MDM_CLI_CONF_COMMAND_RECEIVED INFO Command add_sds_device received, User: 'admin'. [6469] SDS: Hostname: 10.2.201.197, SDS Device: name N/A path /dev/sdd, Storage Pool: esx, Test Mode: 'Test and activate' Test Time: 0
1490 2015-12-14 01:44:52.103 OPEN_SDS_DEVICE_FAILED ERROR Could not open a device on SDS: e00b633d00000000 (Path: /dev/sdd). Error message: Found an invalid device header signature
1491 2015-12-14 01:44:52.117 CLI_COMMAND_FAILED WARNING Command add_sds_device was not successful. Error code: Found an invalid device header signature [6469] ID: 0000000000000000
I can see the disk in /dev/ as sdd and fdisk shows no partitions. Can anyone guide me in the right direction?
Thanks
Andrew
andrewag
2 Posts
0
December 14th, 2015 15:00
Turns out I replaced the disk without doing a sds_remove_device command. I couldn't add the new disk because it didn't match what the SDS knew. I couldn't add the old disk back in to remove it properly. Instead I removed the entire SDS from teh cluster and added it again.
Hope this helps someone!
chenry3
1 Message
1
June 22nd, 2016 21:00
I had the same error with one of my disks (sdc) and wiping the first 100KB of the disk fixed the issue.
eg for sdc: "sudo dd if=/dev/zero of=/dev/sdc bs=102400 count=1"
I tried doing the first 1KB to wipe the MBR/partition table and that didn't work... threw a few more zero's on and was able to add the device