* SiI 3114 and sata_sil
@ 2007-02-15 18:31 Florin Andrei
2007-02-15 18:42 ` Jeff Garzik
0 siblings, 1 reply; 6+ messages in thread
From: Florin Andrei @ 2007-02-15 18:31 UTC (permalink / raw)
To: jgarzik; +Cc: linux-ide
(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.
The other was installed with CentOS 4.4 (kernel 2.6.9-42.0.8.ELsmp) by
myself. I tried many different things, but I couldn't activate RAID. The
installer was always seeing two separate drives instead of one RAID volume.
Is this caused by the sata_sil driver? Is the version used by CentOS too
old to support RAID?
BTW, on Fedora 5, how do I monitor the status of the RAID arrays? There
doesn't seem to be anything in /proc to provide that info.
Thanks,
--
Florin Andrei
http://florin.myip.org/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: SiI 3114 and sata_sil
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
0 siblings, 1 reply; 6+ messages in thread
From: Jeff Garzik @ 2007-02-15 18:42 UTC (permalink / raw)
To: Florin Andrei; +Cc: linux-ide
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
Jeff
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: SiI 3114 and sata_sil
2007-02-15 18:42 ` Jeff Garzik
@ 2007-02-15 18:51 ` Florin Andrei
2007-02-15 19:27 ` Jeff Garzik
0 siblings, 1 reply; 6+ messages in thread
From: Florin Andrei @ 2007-02-15 18:51 UTC (permalink / raw)
To: Jeff Garzik; +Cc: linux-ide
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?
--
Florin Andrei
http://florin.myip.org/
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: SiI 3114 and sata_sil
2007-02-15 18:51 ` Florin Andrei
@ 2007-02-15 19:27 ` Jeff Garzik
2007-02-16 1:11 ` Robin H. Johnson
0 siblings, 1 reply; 6+ messages in thread
From: Jeff Garzik @ 2007-02-15 19:27 UTC (permalink / raw)
To: Florin Andrei; +Cc: linux-ide
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
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: SiI 3114 and sata_sil
2007-02-15 19:27 ` Jeff Garzik
@ 2007-02-16 1:11 ` Robin H. Johnson
2007-02-16 1:14 ` Jeff Garzik
0 siblings, 1 reply; 6+ messages in thread
From: Robin H. Johnson @ 2007-02-16 1:11 UTC (permalink / raw)
To: Jeff Garzik; +Cc: Florin Andrei, linux-ide
[-- Attachment #1: Type: text/plain, Size: 1665 bytes --]
On Thu, Feb 15, 2007 at 02:27:58PM -0500, Jeff Garzik wrote:
> >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
No, that's not a correct assertion. We can only say that device-mapper
is being used somehow. It could be LVM, EVMS2, dmraid, or a few other
things.
Use dmsetup (info,ls,status,targets) as well as the sysfs block slave
entries on dm-* to figure it out from scratch. (or at a higher level,
try the LVM tools etc).
--
Robin Hugh Johnson
Gentoo Linux Developer
E-Mail : robbat2@gentoo.org
GnuPG FP : 11AC BA4F 4778 E3F6 E4ED F38E B27B 944E 3488 4E85
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: SiI 3114 and sata_sil
2007-02-16 1:11 ` Robin H. Johnson
@ 2007-02-16 1:14 ` Jeff Garzik
0 siblings, 0 replies; 6+ messages in thread
From: Jeff Garzik @ 2007-02-16 1:14 UTC (permalink / raw)
To: Robin H. Johnson; +Cc: Florin Andrei, linux-ide
Robin H. Johnson wrote:
> No, that's not a correct assertion. We can only say that device-mapper
> is being used somehow. It could be LVM, EVMS2, dmraid, or a few other
> things.
When using the stock open source ATA drivers, of those DM-related actors
only dmraid can claim support for Sil 3114 proprietary "hardware RAID"
as the user would see it.
Jeff
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2007-02-16 1:14 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
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
2007-02-16 1:11 ` Robin H. Johnson
2007-02-16 1:14 ` Jeff Garzik
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