From: Anssi Hannula <anssi.hannula@iki.fi>
To: Rudy Zijlstra <rudy@grumpydevil.homelinux.org>
Cc: Brad Campbell <brad@wasp.net.au>,
Mikael Abrahamsson <swmike@swm.pp.se>,
Janek Kozicki <janek_listy@wp.pl>,
linux-raid@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: mapping ataXX.YY to a /dev/sdX
Date: Sat, 10 Jul 2010 14:45:53 +0300 [thread overview]
Message-ID: <201007101445.53556.anssi.hannula@iki.fi> (raw)
In-Reply-To: <4C381BC4.9040903@grumpydevil.homelinux.org>
Rudy Zijlstra kirjoitti lauantai, 10. heinäkuuta 2010 10:05:40:
> Judging from my dmesg and lsscsi on a system with both scsi and SATA,
> ataX translates into scsi X:0:0:0
AFAIK this is only because you have a real SCSI occupying scsi0. On systems
with only ATA, ataN is scsi(N-1).
I guess it really depends on the load order of ATA, SCSI and USB storage
device drivers.
This should probably be changed somehow.. either make ataXX binding available
somewhere or use some other known identifier instead of ataXX.
> example dmesg output:
> [ 3.901035] ata10: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 3.937046] ata10.00: ATA-7: WDC WD7500AAKS-00RBA0, 30.04G30, max
> UDMA/133
> [ 3.948794] ata10.00: 1465149168 sectors, multi 0: LBA48 NCQ (depth
> 31/32)
> [ 3.969065] ata10.00: configured for UDMA/133
> [ 3.980847] scsi 10:0:0:0: Direct-Access ATA WDC
> WD7500AAKS-0 30.0 PQ: 0 ANSI: 5
> [ 3.993120] sd 10:0:0:0: [sdf] 1465149168 512-byte hardware sectors:
> (750 GB/698 GiB)
> [ 4.005586] sd 10:0:0:0: [sdf] Write Protect is off
> [ 4.017936] sd 10:0:0:0: [sdf] Mode Sense: 00 3a 00 00
> [ 4.017959] sd 10:0:0:0: [sdf] Write cache: enabled, read cache:
> enabled, doesn't support DPO or FUA
>
> and the lsscsi output:
> [0:2:0:0] disk LSI MegaRAID 8344ELP 1.12 /dev/sda
> [0:2:1:0] disk LSI MegaRAID 8344ELP 1.12 /dev/sdb
> [5:0:1:0] cd/dvd MATSHITA DVD-ROM UJDA780 1.50 /dev/sr0
> [7:0:0:0] disk ATA SAMSUNG HD154UI 1AG0 /dev/sdm
> [8:0:0:0] disk ATA SAMSUNG HD154UI 1AG0 /dev/sdl
> [9:0:0:0] disk ATA SAMSUNG HD154UI 1AG0 /dev/sdo
> [10:0:0:0] disk ATA SAMSUNG HD154UI 1AG0 /dev/sdn
> [11:0:0:0] disk ATA SAMSUNG HD103SJ 1AJ1 /dev/sdk
> [12:0:0:0] disk ATA Hitachi HDT72101 ST6O /dev/sdh
> [13:0:0:0] disk ATA Hitachi HDT72101 ST6O /dev/sdi
> [14:0:0:0] disk ATA Hitachi HDT72101 ST6O /dev/sdj
--
Anssi Hannula
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next prev parent reply other threads:[~2010-07-10 11:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <alpine.DEB.1.10.1007070810540.23489@uplift.swm.pp.se>
[not found] ` <87wrt7ijp3.fsf@rimspace.net>
[not found] ` <alpine.DEB.1.10.1007071749320.23489@uplift.swm.pp.se>
2010-07-08 10:05 ` mapping ataXX.YY to a /dev/sdX Tim Small
2010-07-08 10:26 ` Mikael Abrahamsson
[not found] ` <20100708104422.GA32564@cthulhu.home.robinhill.me.uk>
2010-07-08 11:05 ` Mikael Abrahamsson
[not found] ` <20100708232631.014a5ade@atak.bl.pg.gda.pl>
2010-07-08 21:53 ` Mikael Abrahamsson
2010-07-10 4:42 ` Brad Campbell
2010-07-10 7:05 ` Rudy Zijlstra
2010-07-10 11:45 ` Anssi Hannula [this message]
2010-07-10 19:23 ` Jeff Garzik
2010-07-10 23:49 ` Rudy Zijlstra
2010-07-11 19:01 ` Jérôme Poulin
[not found] ` <AANLkTiluwfd9LTH7Tb0J9N3NBvp1FbZdoJYUYj1g8BJz@mail.gmail.com>
2010-07-14 19:05 ` Jim Paris
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