From: Jeff Garzik <jgarzik@pobox.com>
To: Florin Andrei <florin@andrei.myip.org>
Cc: linux-ide@vger.kernel.org
Subject: Re: SiI 3114 and sata_sil
Date: Thu, 15 Feb 2007 14:27:58 -0500 [thread overview]
Message-ID: <45D4B43E.2040807@pobox.com> (raw)
In-Reply-To: <45D4AB9C.9050808@andrei.myip.org>
Florin Andrei wrote:
> Jeff Garzik wrote:
>> Florin Andrei wrote:
>>> (I'm not subscribed to linux-ide)
>>>
>>> I've two almost identical systems (slightly different CPUs) that use
>>> SiI 3114 for SATA and RAID.
>>>
>>> One of them was installed a while ago with Fedora Core 5 (kernel
>>> 2.6.15-1.2054_FC5smp) and whoever installed it was able to turn on
>>> hardware RAID.
>>
>> This chip does not support hardware RAID. The capability simply isn't
>> there in the silicon.
>>
>> http://linux-ata.org/faq-sata-raid.html#sii
>
> Wow! :-(
>
> So that means that the FC5 system is not actually on RAID? Even though
> it seems so? (using /dev/dm-* for filesystem volumes)
>
> # lspci | grep -i sata
> 03:05.0 RAID bus controller: Silicon Image, Inc. SiI 3114
> [SATALink/SATARaid] Serial ATA Controller (rev 02)
> # df -m
> Filesystem 1M-blocks Used Available Use% Mounted on
> /dev/dm-6 125931 2999 116432 3% /
> /dev/dm-1 99 13 81 14% /boot
> tmpfs 1012 0 1012 0% /dev/shm
> /dev/dm-2 9917 151 9254 2% /tmp
> /dev/dm-3 9917 237 9168 3% /var
> # lsmod | grep ata
> sata_sil 13897 2
> libata 58321 1 sata_sil
> scsi_mod 129641 3 sg,libata,sd_mod
> # cat /etc/modprobe.conf | tail -n 1
> alias scsi_hostadapter sata_sil
>
> So in fact /dev/dm-* are just on one disk each (not RAID1), or what is
> going on here?
The's dmraid providing /software/ RAID as noted in
http://linux-ata.org/faq-sata-raid.html#dmraid
Jeff
next prev parent reply other threads:[~2007-02-15 19:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-15 18:31 SiI 3114 and sata_sil Florin Andrei
2007-02-15 18:42 ` Jeff Garzik
2007-02-15 18:51 ` Florin Andrei
2007-02-15 19:27 ` Jeff Garzik [this message]
2007-02-16 1:11 ` Robin H. Johnson
2007-02-16 1:14 ` Jeff Garzik
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