Recent versions of the mpt driver and mpxio will grock mpath'ed SATA
drives. This is to support such a feature on the J-series JBODs
specifically, and I make use of that feature on my Solaris 10 machines
which have attached J4200s.
/dale
On Jul 2, 2009, at 1:51 PM, Timothy Creswick wrote:
It was my understanding from a recent discussion with Sun that you
can't multipath to SATA drives. Multipathing is specific to SAS and
there's no support in SATA for this.
Regards,
Tim
-----Original Message-----
From: [email protected] [mailto:[email protected]
] On Behalf Of Marion Hakanson
Sent: 01 July 2009 23:50
To: [email protected]
Subject: [storage-discuss] PCIE SAS HBA, J4400 multipathing
Folks,
We just deployed a J4400 on an X4150 server, PCI-Express SAS HBA
(SG-XPCIE8SAS-E-Z), 24x 500GB SATA drives. The J4400 has two SIM's,
and we've connected each SIM's port-0 to a separate port on the HBA.
Software is Solaris-10U7_x86, patched current as of yesterday, and
we've
got all firmware up-to-date as well (including that from CAM-6.4.1.5,
for SIM's and disks).
Solaris-10_x86 driver: MPT HBA driver v1.85
LSI 1068E p/n: 375-3487-04
LSI 1068E BIOS: 6.26.00.00 (2008.10.14)
LSI 1068E f/w: 1.26.00.00-IT
SIM firmware: 3R21
drives: SEAGATE ST35000N-3AZY
So, all should be compatible with mpt's multipathing, and mpt.conf
has the mpxio-disable="no" and disable-sata-mpxio="no" settings.
We've let "smtsboot -e" do its thing, but multipathing is not
working -- the system continues to see 48 drives.
And yes, it's clear that drive 0 is identical to drive 24, etc.
The GUID's from "raidctl -l -g 0.0.0 0" and "raidctl -l -g 0.24.0 0"
are identical.
So, what magic might we be missing?
Regards,
Marion
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