* Second drive on VT6421
@ 2011-03-05 19:00 Philippe LeCavalier
2011-03-05 20:05 ` Alejandro Riveira Fernández
0 siblings, 1 reply; 6+ messages in thread
From: Philippe LeCavalier @ 2011-03-05 19:00 UTC (permalink / raw)
To: linux-kernel
I know it's been discussed but since it's been a while, has anyone
managed to get a second drive detected with this card?
I'm on Deb Squeeze with 2.6.32-5
sata_via is loading fine and I can see the drives if they're connected
individually but not if I connect both. If I do connect both I only see
one of them -which is always from the same port-.
To be clear, I'm not referring to the eSATA port. I'm not up to that
yet.
--
Thanks,
Phil
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Second drive on VT6421
2011-03-05 19:00 Second drive on VT6421 Philippe LeCavalier
@ 2011-03-05 20:05 ` Alejandro Riveira Fernández
2011-03-05 20:07 ` Philippe LeCavalier
0 siblings, 1 reply; 6+ messages in thread
From: Alejandro Riveira Fernández @ 2011-03-05 20:05 UTC (permalink / raw)
To: Philippe LeCavalier; +Cc: linux-kernel, linux-ide
El Sat, 05 Mar 2011 14:00:44 -0500
Philippe LeCavalier <support@plecavalier.com> escribió:
Adding linux-ide to CC
> I know it's been discussed but since it's been a while, has anyone
> managed to get a second drive detected with this card?
>
> I'm on Deb Squeeze with 2.6.32-5
>
> sata_via is loading fine and I can see the drives if they're connected
> individually but not if I connect both. If I do connect both I only see
> one of them -which is always from the same port-.
>
> To be clear, I'm not referring to the eSATA port. I'm not up to that
> yet.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Second drive on VT6421
2011-03-05 20:05 ` Alejandro Riveira Fernández
@ 2011-03-05 20:07 ` Philippe LeCavalier
2011-03-05 22:59 ` [RESOLVED] " Philippe LeCavalier
0 siblings, 1 reply; 6+ messages in thread
From: Philippe LeCavalier @ 2011-03-05 20:07 UTC (permalink / raw)
To: Alejandro Riveira Fernández; +Cc: linux-kernel, linux-ide
thx.
If I can provide more nfo pls ask.
Excerpts from Alejandro Riveira Fernández's message of Sat Mar 05 15:05:37 -0500 2011:
> El Sat, 05 Mar 2011 14:00:44 -0500
> Philippe LeCavalier <support@plecavalier.com> escribió:
>
> Adding linux-ide to CC
>
> > I know it's been discussed but since it's been a while, has anyone
> > managed to get a second drive detected with this card?
> >
> > I'm on Deb Squeeze with 2.6.32-5
> >
> > sata_via is loading fine and I can see the drives if they're connected
> > individually but not if I connect both. If I do connect both I only see
> > one of them -which is always from the same port-.
> >
> > To be clear, I'm not referring to the eSATA port. I'm not up to that
> > yet.
--
Thanks,
Phil
^ permalink raw reply [flat|nested] 6+ messages in thread
* [RESOLVED] Re: Second drive on VT6421
2011-03-05 20:07 ` Philippe LeCavalier
@ 2011-03-05 22:59 ` Philippe LeCavalier
2011-03-12 21:06 ` Krzysztof Halasa
0 siblings, 1 reply; 6+ messages in thread
From: Philippe LeCavalier @ 2011-03-05 22:59 UTC (permalink / raw)
To: Alejandro Riveira Fernández, linux-kernel
Hi All,
I tried setting both drives to 1.5Gbps on a whim and low and behold it
worked. btw. setting a single drive to 1.5 didn't help. I had to set
both.
I had considered this from the beginning but thought that since each
drive was detected on their own at 3Gbps there was no good reason they
couldn't both.
There must be something about that chip...Perhaps the way the firmware
allocates the bandwidth. ie 2 channels with a total of 3Gbps then a
second drive cannot coexists if the first requests all 3Gbps?!
Excerpts from Philippe LeCavalier's message of Sat Mar 05 15:07:33 -0500 2011:
> thx.
>
> If I can provide more nfo pls ask.
>
> Excerpts from Alejandro Riveira Fernández's message of Sat Mar 05 15:05:37 -0500 2011:
> > El Sat, 05 Mar 2011 14:00:44 -0500
> > Philippe LeCavalier <support@plecavalier.com> escribió:
> >
> > Adding linux-ide to CC
> >
> > > I know it's been discussed but since it's been a while, has anyone
> > > managed to get a second drive detected with this card?
> > >
> > > I'm on Deb Squeeze with 2.6.32-5
> > >
> > > sata_via is loading fine and I can see the drives if they're connected
> > > individually but not if I connect both. If I do connect both I only see
> > > one of them -which is always from the same port-.
> > >
> > > To be clear, I'm not referring to the eSATA port. I'm not up to that
> > > yet.
--
Thanks,
Phil
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [RESOLVED] Re: Second drive on VT6421
2011-03-05 22:59 ` [RESOLVED] " Philippe LeCavalier
@ 2011-03-12 21:06 ` Krzysztof Halasa
2011-03-13 2:16 ` Philippe LeCavalier
0 siblings, 1 reply; 6+ messages in thread
From: Krzysztof Halasa @ 2011-03-12 21:06 UTC (permalink / raw)
To: Philippe LeCavalier; +Cc: Alejandro Riveira Fernández, linux-kernel
Philippe LeCavalier <support@plecavalier.com> writes:
> There must be something about that chip...Perhaps the way the firmware
> allocates the bandwidth. ie 2 channels with a total of 3Gbps then a
> second drive cannot coexists if the first requests all 3Gbps?!
I think VT6421(A) is 1.5 Gb/s only.
To be honest, It was never able to get it to work reliably, esp. with
Transcend and/or Kingston SSDs.
--
Krzysztof Halasa
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [RESOLVED] Re: Second drive on VT6421
2011-03-12 21:06 ` Krzysztof Halasa
@ 2011-03-13 2:16 ` Philippe LeCavalier
0 siblings, 0 replies; 6+ messages in thread
From: Philippe LeCavalier @ 2011-03-13 2:16 UTC (permalink / raw)
To: Krzysztof Halasa; +Cc: Alejandro Riveira Fernández, linux-kernel
Excerpts from Krzysztof Halasa's message of Sat Mar 12 16:06:25 -0500 2011:
> Philippe LeCavalier <support@plecavalier.com> writes:
>
> > There must be something about that chip...Perhaps the way the firmware
> > allocates the bandwidth. ie 2 channels with a total of 3Gbps then a
> > second drive cannot coexists if the first requests all 3Gbps?!
>
> I think VT6421(A) is 1.5 Gb/s only.
> To be honest, It was never able to get it to work reliably, esp. with
> Transcend and/or Kingston SSDs.
I'm confident you're right. I just haven't come across any doc outlining
that. Since I resolved this, the drives have been running stable no
issues at all.
--
Thanks,
Phil
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-03-13 2:16 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-03-05 19:00 Second drive on VT6421 Philippe LeCavalier
2011-03-05 20:05 ` Alejandro Riveira Fernández
2011-03-05 20:07 ` Philippe LeCavalier
2011-03-05 22:59 ` [RESOLVED] " Philippe LeCavalier
2011-03-12 21:06 ` Krzysztof Halasa
2011-03-13 2:16 ` Philippe LeCavalier
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®