From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roman Mamedov <rm@romanrm.ru>
Subject: BTRFS misdetects NBD (Network Block Devices) as SSD
Date: Tue, 21 Feb 2012 00:51:57 +0600
Message-ID: <20120221005157.3b9f8db9@natsu>
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Hello,

I have noticed I have the following in my dmesg:

[319769.043163] nbd: registered device at major 43
[319769.104176]  nbd11: unknown partition table
[319769.130273] device fsid c2598ff2-1e3e-4edf-ab19-1f7ab41b0160 devid 1 tr=
ansid 125743 /dev/nbd11
[319769.130522] btrfs: force lzo compression
[319769.130528] btrfs: disk space caching is enabled
[319802.926547] Btrfs detected SSD devices, enabling SSD mode

The /dev/nbd11 device itself is not an SSD, it's an LVM volume situated on a
RAID5 array of regular hard drives, exported via NBD from another computer.

https://en.wikipedia.org/wiki/Network_block_device

--=20
With respect,
Roman

~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Stallman had a printer,
with code he could not see.
So he began to tinker,
and set the software free."

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