Hello,
I tried to create a 4TB file io backed LUN and presented it to an ESX
server. The esx server correctly detects the LUN but can not create a
file system on it. I tried this with Linux tip. In dmesg of the Linux
tip I see:
[ 12.100242] Rounding down aligned max_sectors from 4294967295 to 4294967288
[ 97.343801] Rounding down aligned max_sectors from 4294967295 to 4294967288
A quick look in target_core_file.c shows that the files are open with
O_LARGEFILE so the error is not obvious. Please let me know if you want to
investigate the issue and need my help for it.
I also tried with SAN/IQ where it worked like a charm. On the ESX server when I
tried to create the LUN I got on Linux tip a never ending 'create VMFS' task.
Any ideas?
Cheers,
Thomas
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