Adaptec 1430SA

Does anyone have any experience with Adaptec controllers? Namely

http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/

I want to increase my machines drive capacity and reply the existing 2 =
port pci-e with this bad boy.

Also; any ideas of a good price? Have seen for ~=A370 + p&p

-----------------------
N: Jon Hardcastle
E: Jon@eHardcastle.com
'Do not worry about tomorrow, for tomorrow will bring worries of its ow=
n.'
-----------------------


=20
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Re: Adaptec 1430SA

Jon, Are you going to use the RAID capability on that card or just use
it to get extra SATA ports?

On Tue, Sep 8, 2009 at 4:56 PM, Jon Hardcastle=
wrote:
> Does anyone have any experience with Adaptec controllers? Namely
>
> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
>
> I want to increase my machines drive capacity and reply the existing =
2 port pci-e with this bad boy.
>
> Also; any ideas of a good price? Have seen for ~£70 + p&p
>
> -----------------------
> N: Jon Hardcastle
> E: Jon@eHardcastle.com
> 'Do not worry about tomorrow, for tomorrow will bring worries of its =
own.'
> -----------------------
>
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid"=
in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.ht=
ml
>



--=20
Majed B.
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Re: Adaptec 1430SA

Jon, According to this link (
http://groups.google.com/group/linux.debian.ports.x86-64/bro wse_thread/=
thread/12f2084ceace4c08?pli=3D1
) that card uses fake raid, so you're better off using it as just a
SATA port provider rather than using the RAID capabilities of the card
itself.

On Tue, Sep 8, 2009 at 4:59 PM, Majed B. wrote:
> Jon, Are you going to use the RAID capability on that card or just us=
e
> it to get extra SATA ports?
>
> On Tue, Sep 8, 2009 at 4:56 PM, Jon Hardcastle m> wrote:
>> Does anyone have any experience with Adaptec controllers? Namely
>>
>> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
>>
>> I want to increase my machines drive capacity and reply the existing=
2 port pci-e with this bad boy.
>>
>> Also; any ideas of a good price? Have seen for ~£70 + p&p
>>
>> -----------------------
>> N: Jon Hardcastle
>> E: Jon@eHardcastle.com
>> 'Do not worry about tomorrow, for tomorrow will bring worries of its=
own.'
>> -----------------------
>>
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-raid=
" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.h=
tml
>>
>
>
>
> --
>       Majed B.
>



--=20
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Re: Adaptec 1430SA

--- On Tue, 8/9/09, Majed B. wrote:

> From: Majed B.
> Subject: Re: Adaptec 1430SA
> To: Jon@ehardcastle.com
> Cc: linux-raid@vger.kernel.org
> Date: Tuesday, 8 September, 2009, 3:06 PM
> Jon, According to this link (
> http://groups.google.com/group/linux.debian.ports.x86-64/bro wse_threa=
d/thread/12f2084ceace4c08?pli=3D1
> ) that card uses fake raid, so you're better off using it
> as just a
> SATA port provider rather than using the RAID capabilities
> of the card
> itself.
>=20
> On Tue, Sep 8, 2009 at 4:59 PM, Majed B.
> wrote:
> > Jon, Are you going to use the RAID capability on that
> card or just use
> > it to get extra SATA ports?
> >
> > On Tue, Sep 8, 2009 at 4:56 PM, Jon Hardcastle com>
> wrote:
> >> Does anyone have any experience with Adaptec
> controllers? Namely
> >>
> >> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
> >>
> >> I want to increase my machines drive capacity and
> reply the existing 2 port pci-e with this bad boy.
> >>
> >> Also; any ideas of a good price? Have seen for
> ~=A370 + p&p
> >>
> >> -----------------------
> >> N: Jon Hardcastle
> >> E: Jon@eHardcastle.com
> >> 'Do not worry about tomorrow, for tomorrow will
> bring worries of its own.'
> >> -----------------------
> >>
> >>
> >>
> >> --
> >> To unsubscribe from this list: send the line
> "unsubscribe linux-raid" in
> >> the body of a message to majordomo@vger.kernel.org
> >> More majordomo info at =A0http://vger.kernel.org/majordomo-info.ht=
ml
> >>
> >
> >
> >
> > --
> > =A0 =A0 =A0 Majed B.
> >
>=20
>=20
>=20
> --=20
> =A0 =A0   =A0Majed B.
>=20

Hi, thanks for the link! I was planning on just using it as a means to =
get more ports - and then use mdadm to actually to the raid part.

-----------------------
N: Jon Hardcastle
E: Jon@eHardcastle.com
'Do not worry about tomorrow, for tomorrow will bring worries of its ow=
n.'
-----------------------



=20
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Re: Adaptec 1430SA

I had bought one of these to use with my Intel D955XBK board and ended
up returning it. I could not get the Adaptec controller BIOS screen to
come up. It kept saying something about not having enough memory. Not
sure why it wasn't compatible as Adpatec adapters are normally good.

I ended up returning and it purchasing a Supermicro AOC-USAS-L8i
adapter which uses the LSI SAS 1068E chip. You can get these cheap off
eBay. The only downside is theses are made for the PCI Express UIO
slot on the Supermicro boards. I didn't realize it at the time, but
the UIO boards have the components mounted on the opposite side. I had
to swap out the PCI bracket so I could secure it in the case and it
takes up the space of two slots. If this isn't a big deal to you then
the card works great.

There are three different firmware modes available from Supermicro for
that card. I have the IT mode firmware which disables the RAID support
of the card. The drives are passed straight through to the OS without
having to configure anything in the card's BIOS. I can even use the
smartmontools to monitor the drives health.

Ryan

On Tue, Sep 8, 2009 at 9:56 AM, Jon Hardcastle=
wrote:
> Does anyone have any experience with Adaptec controllers? Namely
>
> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
>
> I want to increase my machines drive capacity and reply the existing =
2 port pci-e with this bad boy.
>
> Also; any ideas of a good price? Have seen for ~=A370 + p&p
>
> -----------------------
> N: Jon Hardcastle
> E: Jon@eHardcastle.com
> 'Do not worry about tomorrow, for tomorrow will bring worries of its =
own.'
> -----------------------
>
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid"=
in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at =A0http://vger.kernel.org/majordomo-info.html
>
--
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Re: Adaptec 1430SA

On 08/09/2009 15:34, Jon Hardcastle wrote:
> --- On Tue, 8/9/09, Majed B. wrote:
>> Jon, According to this link (
>> http://groups.google.com/group/linux.debian.ports.x86-64/bro wse_thread/thread/12f2084ceace4c08?pli=1
>> ) that card uses fake raid
[...]
> Hi, thanks for the link! I was planning on just using it as a means to get more ports - and then use mdadm to actually to the raid part.

Been doing a spot of Googling around this myself. Looks like there's
open source code available to support seeing the discs, either with
sata_mv or Adaptec's own aar81xx drivers, which will get you going for
what you say above. However, if you did want to use HostRAID (Adaptec's
name for fakeraid) you either have to build Adaptec's driver linking in
their closed-source binary HostRAID code or use the open source dmraid.

I'm a bit mystified at the idea of Adaptec using Marvell chips, though.
I wonder what that's all about?

Cheers,

John.
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Re: Adaptec 1430SA

Check this link out:
http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-h ow-to-build-cheap-cloud-storage/

AT the end, they have a list of components, cheap ones. One is a
2-port sata card and another is a 4-port sata card. You might find
them appealing to your usage.

On Tue, Sep 8, 2009 at 6:39 PM, John
Robinson wrote:
> On 08/09/2009 15:34, Jon Hardcastle wrote:
>>
>> --- On Tue, 8/9/09, Majed B. wrote:
>>>
>>> Jon, According to this link (
>>>
>>> http://groups.google.com/group/linux.debian.ports.x86-64/bro wse_thread/thread/12f2084ceace4c08?pli=1
>>> ) that card uses fake raid
>
> [...]
>>
>> Hi, thanks for the link! I was planning on just using it as a means to get
>> more ports - and then use mdadm to actually to the raid part.
>
> Been doing a spot of Googling around this myself. Looks like there's open
> source code available to support seeing the discs, either with sata_mv or
> Adaptec's own aar81xx drivers, which will get you going for what you say
> above. However, if you did want to use HostRAID (Adaptec's name for
> fakeraid) you either have to build Adaptec's driver linking in their
> closed-source binary HostRAID code or use the open source dmraid.
>
> I'm a bit mystified at the idea of Adaptec using Marvell chips, though. I
> wonder what that's all about?
>
> Cheers,
>
> John.
>



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Re: Adaptec 1430SA

On Tue, Sep 8, 2009 at 10:13 PM, Majed B. wrote:
>
> Check this link out:
> http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-h ow-to-bui=
ld-cheap-cloud-storage/
>
> AT the end, they have a list of components, cheap ones. One is a
> 2-port sata card and another is a 4-port sata card. You might find
> them appealing to your usage.
>
> On Tue, Sep 8, 2009 at 6:39 PM, John
> Robinson wrote:
> > On 08/09/2009 15:34, Jon Hardcastle wrote:
> >>
> >> --- On Tue, 8/9/09, Majed B. wrote:
> >>>
> >>> Jon, According to this link (
> >>>
> >>> http://groups.google.com/group/linux.debian.ports.x86-64/bro wse_t=
hread/thread/12f2084ceace4c08?pli=3D1
> >>> ) that card uses fake raid
> >
> > [...]
> >>
> >> Hi, thanks for the link! I was planning on just using it as a mean=
s to get
> >> more ports - and then use mdadm to actually to the raid part.
> >
> > Been doing a spot of Googling around this myself. Looks like there'=
s open
> > source code available to support seeing the discs, either with sata=
_mv or
> > Adaptec's own aar81xx drivers, which will get you going for what yo=
u say
> > above. However, if you did want to use HostRAID (Adaptec's name for
> > fakeraid) you either have to build Adaptec's driver linking in thei=
r
> > closed-source binary HostRAID code or use the open source dmraid.
> >
> > I'm a bit mystified at the idea of Adaptec using Marvell chips, tho=
ugh. I
> > wonder what that's all about?
> >
> > Cheers,
> >
> > John.
> >
>
> --
> =A0 =A0 =A0 Majed B.


Hi all,

I've used a Supermicro 8-port Marvell PCI-X card in Linux that works
really well. There's driver support in the kernel for it and it's
great. The type is AOC-SAT2-MV8:
http://www.supermicro.com/products/accessories/addon/AOC-SAT 2-MV8.cfm

I've also used a PCI-Express card from Supermicro, the AOC-SASLP-MV8,
that did NOT work as well. I only managed to get it running on the
Linux 2.6.31 release candidates, and even then, it loses disks under
heavy load such as when building an array. There is work ongoing in
the relevant subsystems of the Linux kernel, so I predict that it will
work fine in kernel 2.6.31 final, but I wouldn't count on it just yet.
The card is well built and looks good, it's just that driver support
isn't solid yet.

So, Supermicro multiport SATA cards: PCI-X good, PCI-Express not so
great. Both cards are quite cheap as far as I can tell, and solidly
designed. Supermicro using them is also a vote of confidence in my
book.

Hope this helps someone!

-- Kristleifur
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Re: Adaptec 1430SA

Hello,
I am using Adaptec 1430SA. I chose it because it was the only:
* reasonably priced (no hw raid),
* >2 port controller,
* pci-e faster than x1.

=46rom bad news, I cannot access its "configuration utility" during
startup, just as Ryan mentioned. I'm using Asus P5K-E (P35 chipset),
and 1430SA lives in non-gfx pci-e slot. I don't cry though, I never
wanted to use its fakeraid for anything.

I'm running 2.6.23-0.214.rc8.git2.fc8 and currently only a WD10EADS is
hooked up to the 1430SA. I'm using sata_mv driver, and it looks more
or less like this:

sata_mv 0000:04:00.0: version 1.0
ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 16 (level, low) -> IRQ 16
sata_mv 0000:04:00.0: Applying 60X1C0 workarounds to unknown rev
sata_mv 0000:04:00.0: Gen-IIE 32 slots 4 ports ? mode IRQ via INTx
PCI: Setting latency timer of device 0000:04:00.0 to 64
scsi10 : sata_mv
scsi11 : sata_mv
scsi12 : sata_mv
scsi13 : sata_mv
ata11: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa2120
bmdma 0x0000000000000000 irq 16
ata12: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa4120
bmdma 0x0000000000000000 irq 16
ata13: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa6120
bmdma 0x0000000000000000 irq 16
ata14: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa8120
bmdma 0x0000000000000000 irq 16
ata11: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata11.00: ATA-8: WDC WD10EADS-00M2B0, 01.00A01, max UDMA/133
ata11.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
ata11.00: configured for UDMA/133
ata12: SATA link down (SStatus 0 SControl 300)
ata13: SATA link down (SStatus 0 SControl 300)
ata14: SATA link down (SStatus 0 SControl 300)
scsi 10:0:0:0: Direct-Access ATA WDC WD10EADS-00M 01.0 PQ: 0 A=
NSI: 5
sd 10:0:0:0: [sdh] 1953525168 512-byte hardware sectors (1000205 MB)
..

Initially I was worried about
sata_mv 0000:04:00.0: Applying 60X1C0 workarounds to unknown rev
sata_mv 0000:04:00.0: Gen-IIE 32 slots 4 ports ? mode IRQ via INTx
because support for 1430SA was added just around 2.6.23, so it seems
my kernel doesn't really recognise it correctly (should be 7-something
chip). I was worried about some data corruption with sata_mv (that
I've just read about) but both issues turned out to be no problem. It
works perfectly and I've not encountered any corruption across 1TB of
md5'ed files. I suggest using newer kernel though.

So to sum up, I found it good value for money with no real drawbacks.

Cheers,
Mike

2009/9/8 Jon Hardcastle :
> Does anyone have any experience with Adaptec controllers? Namely
>
> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
>
> I want to increase my machines drive capacity and reply the existing =
2 port pci-e with this bad boy.
>
> Also; any ideas of a good price? Have seen for ~=A370 + p&p
--
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Re: Adaptec 1430SA

I use this controller and I know of another mate at the office who does=


It works well as a simple SATA controller for four drives (+1 on the mo=
bo).
It is able to drive all disks at full speed and so far I did not have a=
ny
issues with it. I am on fedora 11.

My mobo is unable to handle five disks without hitting some internal
bottlenecks.

cheers

Jon Hardcastle wrote:
> Does anyone have any experience with Adaptec controllers? Namely
>=20
> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
>=20
> I want to increase my machines drive capacity and reply the existing =
2 port pci-e with this bad boy.
>=20
> Also; any ideas of a good price? Have seen for ~ï¿=BD70 + p&p
>=20
> -----------------------
> N: Jon Hardcastle
> E: Jon@eHardcastle.com
> 'Do not worry about tomorrow, for tomorrow will bring worries of its =
own.'

--=20
Eyal Lebedinsky (eyal@eyal.emu.id.au)
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Re: Adaptec 1430SA

It would be nice if you guys posted your reviews in the Hardware
Compatibility List reviews: http://www.linuxquestions.org/hcl/

It would help many others :)

2009/9/9 Michał Przyłuski :
> Hello,
> I am using Adaptec 1430SA. I chose it because it was the only:
> * reasonably priced (no hw raid),
> * >2 port controller,
> * pci-e faster than x1.
>
> From bad news, I cannot access its "configuration utility" during
> startup, just as Ryan mentioned. I'm using Asus P5K-E (P35 chipset),
> and 1430SA lives in non-gfx pci-e slot. I don't cry though, I never
> wanted to use its fakeraid for anything.
>
> I'm running 2.6.23-0.214.rc8.git2.fc8 and currently only a WD10EADS i=
s
> hooked up to the 1430SA. I'm using sata_mv driver, and it looks more
> or less like this:
>
> sata_mv 0000:04:00.0: version 1.0
> ACPI: PCI Interrupt 0000:04:00.0[A] -> GSI 16 (level, low) -> IRQ 16
> sata_mv 0000:04:00.0: Applying 60X1C0 workarounds to unknown rev
> sata_mv 0000:04:00.0: Gen-IIE 32 slots 4 ports ? mode IRQ via INTx
> PCI: Setting latency timer of device 0000:04:00.0 to 64
> scsi10 : sata_mv
> scsi11 : sata_mv
> scsi12 : sata_mv
> scsi13 : sata_mv
> ata11: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa212=
0
> bmdma 0x0000000000000000 irq 16
> ata12: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa412=
0
> bmdma 0x0000000000000000 irq 16
> ata13: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa612=
0
> bmdma 0x0000000000000000 irq 16
> ata14: SATA max UDMA/133 cmd 0x0000000000000000 ctl 0xffffc20002fa812=
0
> bmdma 0x0000000000000000 irq 16
> ata11: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> ata11.00: ATA-8: WDC WD10EADS-00M2B0, 01.00A01, max UDMA/133
> ata11.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 0/32)
> ata11.00: configured for UDMA/133
> ata12: SATA link down (SStatus 0 SControl 300)
> ata13: SATA link down (SStatus 0 SControl 300)
> ata14: SATA link down (SStatus 0 SControl 300)
> scsi 10:0:0:0: Direct-Access     ATA      WD=
C WD10EADS-00M 01.0 PQ: 0 ANSI: 5
> sd 10:0:0:0: [sdh] 1953525168 512-byte hardware sectors (1000205 MB)
> ...
>
> Initially I was worried about
> sata_mv 0000:04:00.0: Applying 60X1C0 workarounds to unknown rev
> sata_mv 0000:04:00.0: Gen-IIE 32 slots 4 ports ? mode IRQ via INTx
> because support for 1430SA was added just around 2.6.23, so it seems
> my kernel doesn't really recognise it correctly (should be 7-somethin=
g
> chip). I was worried about some data corruption with sata_mv (that
> I've just read about) but both issues turned out to be no problem. It
> works perfectly and I've not encountered any corruption across 1TB of
> md5'ed files. I suggest using newer kernel though.
>
> So to sum up, I found it good value for money with no real drawbacks.
>
> Cheers,
> Mike
>
> 2009/9/8 Jon Hardcastle :
>> Does anyone have any experience with Adaptec controllers? Namely
>>
>> http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
>>
>> I want to increase my machines drive capacity and reply the existing=
2 port pci-e with this bad boy.
>>
>> Also; any ideas of a good price? Have seen for ~£70 + p&p
> --
> To unsubscribe from this list: send the line "unsubscribe linux-raid"=
in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.ht=
ml
>



--=20
Majed B.
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Re: Adaptec 1430SA

--- On Tue, 8/9/09, Majed B. wrote:

> From: Majed B.
> Subject: Re: Adaptec 1430SA
> To: "John Robinson"
> Cc: Jon@ehardcastle.com, linux-raid@vger.kernel.org
> Date: Tuesday, 8 September, 2009, 11:13 PM
> Check this link out:
> http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-h ow-to-bui=
ld-cheap-cloud-storage/
>=20
> AT the end, they have a list of components, cheap ones. One
> is a
> 2-port sata card and another is a 4-port sata card. You
> might find
> them appealing to your usage.
>=20
> On Tue, Sep 8, 2009 at 6:39 PM, John
> Robinson
> wrote:
> > On 08/09/2009 15:34, Jon Hardcastle wrote:
> >>
> >> --- On Tue, 8/9/09, Majed B.
> wrote:
> >>>
> >>> Jon, According to this link (
> >>>
> >>> http://groups.google.com/group/linux.debian.ports.x86-64/bro wse_t=
hread/thread/12f2084ceace4c08?pli=3D1
> >>> ) that card uses fake raid
> >
> > [...]
> >>
> >> Hi, thanks for the link! I was planning on just
> using it as a means to get
> >> more ports - and then use mdadm to actually to the
> raid part.
> >
> > Been doing a spot of Googling around this myself.
> Looks like there's open
> > source code available to support seeing the discs,
> either with sata_mv or
> > Adaptec's own aar81xx drivers, which will get you
> going for what you say
> > above. However, if you did want to use HostRAID
> (Adaptec's name for
> > fakeraid) you either have to build Adaptec's driver
> linking in their
> > closed-source binary HostRAID code or use the open
> source dmraid.
> >
> > I'm a bit mystified at the idea of Adaptec using
> Marvell chips, though. I
> > wonder what that's all about?
> >
> > Cheers,
> >
> > John.
> >
>=20
>=20
>=20
> --=20
> =A0 =A0   =A0Majed B.
>=20

Are you referring to the Addonics ADSA4R5? Thanks for the heads up! Is =
PCI straight up got the throughput for 4 devices? I have a 2 port cheap=
y PCI via card Sata 1 and it has turned out to be abit of a mare...

Whilst I have a skilled audience :) Do you have any experience with por=
t multiplier?

-----------------------
N: Jon Hardcastle
E: Jon@eHardcastle.com
'Do not worry about tomorrow, for tomorrow will bring worries of its ow=
n.'
-----------------------


=20
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Re: Adaptec 1430SA

So on the whole we have glowing reviews all round.. Yippe!

I can get it and switch out my 2 port for a 4 port; add 2 more drives..=
and wait patiently for raid5~6 conversion to get reliable so I can sle=
ep easy about >1TB drives in my array!

Cheers guys.

-----------------------
N: Jon Hardcastle
E: Jon@eHardcastle.com
'Do not worry about tomorrow, for tomorrow will bring worries of its ow=
n.'
-----------------------


--- On Wed, 9/9/09, Eyal Lebedinsky wrote:

> From: Eyal Lebedinsky
> Subject: Re: Adaptec 1430SA
> To: linux-raid@vger.kernel.org
> Date: Wednesday, 9 September, 2009, 12:03 AM
> I use this controller and I know of
> another mate at the office who does.
>=20
> It works well as a simple SATA controller for four drives
> (+1 on the mobo).
> It is able to drive all disks at full speed and so far I
> did not have any
> issues with it. I am on fedora 11.
>=20
> My mobo is unable to handle five disks without hitting some
> internal
> bottlenecks.
>=20
> cheers
>=20
> Jon Hardcastle wrote:
> > Does anyone have any experience with Adaptec
> controllers? Namely
> >=20
> > http://www.adaptec.com/en-US/support/sata/sataii/AAR-1430SA/
> >=20
> > I want to increase my machines drive capacity and
> reply the existing 2 port pci-e with this bad boy.
> >=20
> > Also; any ideas of a good price? Have seen for ~ï¿=BD70
> + p&p
> >=20
> > -----------------------
> > N: Jon Hardcastle
> > E: Jon@eHardcastle.com
> > 'Do not worry about tomorrow, for tomorrow will bring
> worries of its own.'
>=20
> -- Eyal Lebedinsky    (eyal@eyal.emu.id.au)
> --
> To unsubscribe from this list: send the line "unsubscribe
> linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.ht=
ml
>=20


=20
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Re: Adaptec 1430SA

Jon, I don't know what your motherboard is nor what your PCI bus
version is, so you may want to take a look here:
http://en.wikipedia.org/wiki/Conventional_PCI

At that link you can see the PCI bus speeds for the different versions
and calculate how much you'll get out of your disks.

I suggest you run a quick benchmark of how quick your disks can
read/write (using hdparm -tT or dd). If you're not familiar with
either, check this:
http://mbhtech.blogspot.com/2009/09/software-raid-vs-lvm-qui ck-speed-test_08.html

When benchmarking the disk, make sure it's connected to a native SATA
port, not to a PCI card, to make sure that the numbers you're getting
are not crippled by the PCI card or so.

P.S.: Last year I bought 2 dual SATA port cards that were cheap from
Amazon, hoping to expand my storage easily. Those two required
flashing their controller with newer firmware and because the
manufacturer's website was so vague, I ended up bricking the first
card (flashed the wrong BIOS/firmware). And even when the 2nd card
detected the 1TB disks, it was utter crap; the cables were mostly
loose due to low-quality connectors.

So because BackBlaze is using the cards they said they use, I'm sure
at least those have good connectors and firmware!

On Wed, Sep 9, 2009 at 10:44 AM, Jon Hardcastle wrote:
> --- On Tue, 8/9/09, Majed B. wrote:
>
>> From: Majed B.
>> Subject: Re: Adaptec 1430SA
>> To: "John Robinson"
>> Cc: Jon@ehardcastle.com, linux-raid@vger.kernel.org
>> Date: Tuesday, 8 September, 2009, 11:13 PM
>> Check this link out:
>> http://blog.backblaze.com/2009/09/01/petabytes-on-a-budget-h ow-to-build-cheap-cloud-storage/
>>
>> AT the end, they have a list of components, cheap ones. One
>> is a
>> 2-port sata card and another is a 4-port sata card. You
>> might find
>> them appealing to your usage.
>
> Are you referring to the Addonics ADSA4R5? Thanks for the heads up! Is PCI straight up got the throughput for 4 devices? I have a 2 port cheapy PCI via card Sata 1 and it has turned out to be abit of a mare...
>
> Whilst I have a skilled audience :) Do you have any experience with port multiplier?
--
Majed B.
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