Date: Sun, 06 Feb 2005 11:03:25 +0100 From: "Kjell B." <homebell@telia.com> To: questions@freebsd.org Subject: ATA Tagged Queuing? Message-ID: <4205EB6D.8040600@telia.com>
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I'm considering turning on Tagged Command Queuing in my ATA system. My disks are all Hitachi 7K250 (two HDS722512VLAT80 and one HDS722516VLAT80) which according to Hitachi support this feature (queue depth = 32). However, I read in http://lists.freebsd.org/pipermail/freebsd-current/2003-July/007378.html that there may be problems doing this and not really improving performance. Is that recommendation still valid or should I go for it? My uname: [homebell] ~> uname -a FreeBSD homebell.dyndns.org 4.10-RELEASE-p2 FreeBSD 4.10-RELEASE-p2 #0: Mon Oct 18 21:48:34 CEST 2004 homebell@homebell.dyndns.org:/usr/obj/usr/src/sys/HOMEBELLapmipfw i386 -- Kjell
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