Date: Sun, 21 Sep 2014 10:34:54 +0200 From: Matthias Andree <matthias.andree@gmx.de> To: freebsd-scsi@freebsd.org Subject: Re: How to disable hard disk write cache? Message-ID: <541E8DAE.8010407@gmx.de> In-Reply-To: <54184484.1070304@delphij.net> References: <541804B0.7070407@gmail.com> <54184484.1070304@delphij.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Am 16.09.2014 um 16:09 schrieb Xin Li: > Modern SATA/SAS/SCSI devices usually comes with the capability of > tagged commands, allowing the OS to know when a write buffer is on > stable storage. With this, file systems can easily implement the > right semantics and recover from e.g. a power outage, etc. Yes, they *can easily implement* that, but which file systems in FreeBSD *actually do* that? Do we have a list which file systems are safe to use with WCE=1 as long as they do NCQ? And what do you need to do on those Samsung drives where NCQ is flakey (HD103SI for one)?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?541E8DAE.8010407>