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Date: Thu, 14 Apr 2016 21:56:22 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Warner Losh <imp@bsdimp.com>
cc: FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: Heads up
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On Thu, 14 Apr 2016, Warner Losh wrote:

> The CAM I/O scheduler has been committed to current. This work is described
> in https://people.freebsd.org/~imp/bsdcan2015/iosched-v3.pdf though the
> default scheduler doesn't change the default (old) behavior.
>
> One possible issue, however, is that it also enables NCQ Trims on ada SSDs.
> There are a few rogue drives that claim support for this feature, but
> actually implement data corrupt instead of queued trims. The list of known
> rogues is believed to be complete, but some caution is in order.

Is the list of drives queryable?  Is there an easy way to tell if the 
currently-connected drives are on the list?