Hi,
I start a NBD device under Linux with:
% nbd-client localhost /dev/nbd0 -block-size 4096 -name test
Negotiation: ..size = 16MB
bs=4096, sz=16777216 bytes
I would expect that the blocksize would work the same as with physical
disks with 4k sectors. Specifically that programs like GNU Parted would
recognise them:
(parted) p
Model: Unknown (unknown)
Disk /dev/nbd0: 16.8MB
Sector size (logical/physical): 512B/512B
...
Parted should see a physical sector size of 4096B there.
The other issue I have is that I would like the server and client to
negotiate the blocksize during the handshake. If the server is exporting
a disk with 4k it should be able to tell the client that fact so it can
communicate that to its kernel. Can we add a new option for this to the
new style handshake?
MfG
Goswin
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