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I tried hundreds of forums and posts, but nothing seem to help!

I have vSphere ESXi 5.5. and when starting ESXi the first time it created and formatted a storage automatically.

For some reason I removed it and now I cannot get my disks/storage back! No problem if I need to reformat but even that is impossible !

I tried to reuse it, to format it, whatever possible, but nothing is working:

The only message I get is : Error: Read-only file system during write on /dev/disks/naa.(...) !

For example :

# partedUtil mklabel /dev/disks/naa.600605b009a647b01c5ed73926b7ede1 msdos
Error: Read-only file system during write on /dev/disks/naa.600605b009a647b01c5ed73926b7ede1
WriteNewPtable: Unable to commit to device /dev/disks/naa.600605b009a647b01c5ed73926b7ede1
partedUtil delete partition gives the same message.

partedUtil setptbl gives the same message.

fdisk (delete, new partitions, write) is of no use.

# partedUtil  getptbl /dev/disks/naa.600605b009a647b01c5ed73926b7ede1
gpt
1215155 255 63 19521474560
1 63 8386622 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0
2 8386623 13629502 9D27538040AD11DBBF97000C2911D1B8 vmkDiagnostic 0

Really, after trying more than 30 hours, I don't know anymore what to do ?

Any help would be very much appreciated...

Denis

P. S. ESXi 5.5.0 P. P. S. The message in the GUI is Appel "HostDatastoreSystem.CreateVmfsDatastore" pour l'objet "ha-datastoresystem" sur ESXi "172.16.1.244" a échoué

db_ch
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2 Answers2

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Finally I found a solution, thank to communities.vmware.com.

Maybe this solved only 50% of the cause of the problem, but at least access to the disk can be regained.

# esxcli system coredump partition get
Active: naa.600605b009a647b01c5ed73926b7ede1:2
Configured: naa.600605b009a647b01c5ed73926b7ede1:2

We see that this coredump partition is using our disk. This is what I did :

# esxcli system coredump partition set --enable false
# partedUtil delete /dev/disks/naa.600605b009a647b01c5ed73926b7ede1 2

It's now a lot better :

# partedUtil getptbl /dev/disks/naa.600605b009a647b01c5ed73926b7ede1
gpt
1215155 255 63 19521474560
1 63 8386622 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0

But it's not 100% solved :

# partedUtil delete /dev/disks/naa.600605b009a647b01c5ed73926b7ede1 1
Error: Read-only file system during write on /dev/disks/naa.600605b009a647b01c5ed73926b7ede1
Unable to delete partition 1 from device /dev/disks/naa.600605b009a647b01c5ed73926b7ede1

But then, by unactivating that partition, I was able to recreate a coredump partition on the disk from the GUI and then recreate a storage.

Now, this is not clean as initially (some small holes and strangely coredump at the end) but I would say the problem is solved:

# partedUtil getptbl /dev/disks/naa.600605b009a647b01c5ed73926b7ede1
gpt
1215155 255 63 19521474560
1 63 8386622 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0
3 8388608 19521267711 AA31E02A400F11DB9590000C2911D1B8 vmfs 0
2 19521267712 19521472511 9D27538040AD11DBBF97000C2911D1B8 vmkDiagnostic 0
db_ch
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Thanks, this worked but I also had to relocate the syslog file on the host from /scratch/log to /tmp before I could delete the partition. Once the partition was deleted and the datastore created I relocated the syslog file to the original location, /scratch/log. This was on a ESXI 6.5 host.

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Aaron Reed
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