Date: Sat, 20 Sep 2014 01:21:01 +0100 From: "Steven Hartland" <killing@multiplay.co.uk> To: "Justin T. Gibbs" <gibbs@scsiguy.com> Cc: freebsd-stable@freebsd.org, Karl Denninger <karl@denninger.net> Subject: Re: getting to 4K disk blocks in ZFS Message-ID: <29D09E99DD8F46ECBB973FDAE7741B0C@multiplay.co.uk> References: <540FF3C4.6010305@ish.com.au> <A0A549F7A4094F519A3660697AB4983F@multiplay.co.uk> <54114029.3060507@FreeBSD.org> <2128347.Ah5i0RTCvp@overcee.wemm.org> <541230F1.3060402@digiware.nl> <7D0869A9-C114-4C4F-877A-3FB26AD7737D@scsiguy.com> <607F83CE25104CE09C74935BA9E26485@multiplay.co.uk> <541CBD5B.8050603@denninger.net> <BA7CD0B47D5F47159BF73FB196563166@multiplay.co.uk> <82FFB2B2-F1D7-422A-BA92-9AFE95678390@scsiguy.com>
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----- Original Message -----
> From: "Justin T. Gibbs" <gibbs@scsiguy.com>
> >> Where is Smartctl getting it from?
> >> smartctl -i /dev/da2
> >> smartctl 6.3 2014-07-26 r3976 [FreeBSD 10.1-BETA1 amd64] (local build)
> >> Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org
> >> === START OF INFORMATION SECTION ===
> >> Device Model: HGST HDN724040ALE640
> >> Serial Number: PK2334PCG6NA0B
> >> LU WWN Device Id: 5 000cca 24cc30684
> >> Firmware Version: MJAOA5E0
> >> User Capacity: 4,000,787,030,016 bytes [4.00 TB]
> >> Sector Sizes: 512 bytes logical, 4096 bytes physical
> >> Rotation Rate: 7200 rpm
> >> Form Factor: 3.5 inches
> >> Device is: Not in smartctl database [for details use: -P showall]
> >> ATA Version is: ATA8-ACS T13/1699-D revision 4
> >> SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
> >> Local Time is: Fri Sep 19 18:33:16 2014 CDT
> >> SMART support is: Available - device has SMART capability.
> >> SMART support is: Enabled
> >> It's not coming from a database, as Smartctl doesn't know about these
> >> (yet); they're too new.
> >
> > Exception to prove the rule?
> >
> > What to "camcontrol identify da2" report?
>
> Was there some recent change made to have that command report sector size
> information? Last I checked, it didn’t.
camcontrol identify has always done that, but added support for Pass-Through
ATA commands so you can use identify on SATA disks attached to SAS controllers
a while back now.
Regards
Steve
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