Date: Sat, 8 Jun 2013 12:38:24 -0500 (CDT) From: Dan Mack <mack@macktronics.com> To: Steven Hartland <killing@multiplay.co.uk> Cc: current@freebsd.org Subject: Re: should TRIM be working on my ZFS L2ARC devices? Message-ID: <20130608123143.F76215@coco.macktronics.com> In-Reply-To: <2511265B30D641F58EE30309F9A4695D@multiplay.co.uk> References: <20130608104911.V76215@coco.macktronics.com> <2511265B30D641F58EE30309F9A4695D@multiplay.co.uk>
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On Sat, 8 Jun 2013, Steven Hartland wrote: <snip> >> Does the Vertex 4 and Intel 520 not work with TRIM on FreeBSD or is >> something else going on here? > > Connected to an controller which supports BIO_DELETE yes they > should. > > Check with: > camcontrol identify ada0 Feature Support Enabled Value Vendor read ahead no yes write cache yes yes flush cache yes yes overlap no Tagged Command Queuing (TCQ) no no Native Command Queuing (NCQ) yes 32 tags SMART yes yes microcode download yes yes security yes no power management yes yes advanced power management no no automatic acoustic management no no media status notification no no power-up in Standby no no write-read-verify yes yes 0/0x0 unload no no free-fall no no Data Set Management (DSM/TRIM) yes DSM - max 512byte blocks yes 16 DSM - deterministic read no Host Protected Area (HPA) yes no 250069680/250069680 HPA - Security no > camcontrol identify ada1 Feature Support Enabled Value Vendor read ahead yes yes write cache yes yes flush cache yes yes overlap no Tagged Command Queuing (TCQ) no no Native Command Queuing (NCQ) yes 32 tags SMART yes yes microcode download yes yes security yes no power management yes yes advanced power management yes yes 254/0xFE automatic acoustic management no no media status notification no no power-up in Standby yes no write-read-verify no no unload yes yes free-fall no no Data Set Management (DSM/TRIM) yes DSM - max 512byte blocks yes 1 DSM - deterministic read yes any value Host Protected Area (HPA) yes no 234441648/234441648 HPA - Security no I don't see BIO_DELETE called out in the camcontrol output anywhere else but and the DSM/TRIM line is marked as supported with the enabled column ambiguous :-) Thanks for the help, Dan
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