Date: Mon, 4 Dec 2006 10:51:18 -0800 (PST) From: mjacob@freebsd.org To: Dieter <freebsd@sopwith.solgatos.com> Cc: freebsd-bugs@freebsd.org, freebsd-gnats-submit@freebsd.org Subject: Re: kern/106340: Need to control disk write cache on per-disk basis Message-ID: <20061204104730.H15778@ns1.feral.com> In-Reply-To: <200612041827.kB4IRpQb056456@www.freebsd.org> References: <200612041827.kB4IRpQb056456@www.freebsd.org>
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> FreeBSD only allows setting disk write cache mode on a system wide basis, > and only at boot time. NetBSD allows setting the disk write cache mode > of each disk individually, and does not require a reboot. See the NetBSD > dkctl(8) man page. Which disks are you talking about? ATA disks? For scsi disks you can do modepage edits via camcontrol that change it on a per-disk basis, so I assume you must be talking about ATA disks here, in which case it sounds like a simple addition to atacontrol(8). -matt
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