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From: Tejun Heo <htejun@gmail.com>
To: Richard Scobie <r.scobie@clear.net.nz>
Cc: linux-ide@vger.kernel.org
Subject: Re: Port multiplier
Date: Mon, 28 Aug 2006 22:05:43 +0900	[thread overview]
Message-ID: <44F2EA27.9090603@gmail.com> (raw)
In-Reply-To: <44F2984F.6030100@clear.net.nz>

Hello,

Richard Scobie wrote:
> I have ordered an ASUS M2N SLI Deluxe which in addition to the NVIDIA
> SATA controller, has a JMicron 363 SATA controller which handles one
> internal SATA connector and an external eSATA connector.
> 
> My understanding is that the JMicron will work using kernel AHCI support
> and the board BIOS has an AHCI setting.
> 
> My hope is to be able to connect an Addonics AD5APM-E 5 disk port
> multiplier module to this. From the photo and some other information at
> their website, this appears to use either a Silicon Image 3124 or 3132 
> chip.
> 
> Do you think this will work, if I use the current patch 20060710 on your
> Wiki?

PMP support for AHCI isn't yet included in PMP patches, so, no, it won't.

> If so, and it supports hotplugging, which I believe it may do, what
> exactly does this mean?
> 
> Can I power up an external enclosure containing the Addonics and 3
> drives, configured as a RAID 5 and plug it straight into the running 
> system?

Yeap.  libata should detect the new drives and attach them.

> If so, can this be set up to mount automatically?

Well, the kernel detects the device and notifies hotplug.  The rest is 
upto how hotplug is configured.

> Can I unmount the connected and mounted array and just unplug the array
> with no further concern?

The machine will survive and detach the device correctly but 
yet-unwritten data will be lost.

-- 
tejun

  reply	other threads:[~2006-08-28 13:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-28  7:16 Port multiplier Richard Scobie
2006-08-28 13:05 ` Tejun Heo [this message]
2006-08-28 15:35   ` Jim Paris
2006-08-28 15:38     ` Tejun Heo
2006-08-29  7:02   ` Richard Scobie

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