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Date:      Wed, 20 Jan 2010 18:30:52 +0900
From:      Stephane LAPIE <stephane.lapie@darkbsd.org>
To:        freebsd-hardware@freebsd.org
Subject:   DELL SAS5/E Controller bug
Message-ID:  <4B56CD4C.80503@darkbsd.org>

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Hello list,

Basically I'm experiencing the same problem as described here :
https://forums.freebsd.org/showthread.php?t=3D9407 (linking for reference=
)

Drives disconnections are not recognized instantly, and instead I get
the following dmesg entries :
mpt0: mpt_cam_event: 0x16
mpt0: mpt_cam_event: 0x16

(Sometimes I also get "mpt0: mpt_cam_event: 0x12" events)

This is really crippling as this litterally paralyzes the ZFS pool until
the controller finally comes to its senses (...or until a disk gets
replugged in, which provokes a flush of all the buffered failed SCSI
requests).

Hardware is recognized as :
mpt0@pci0:6:8:0:	class=3D0x010000 card=3D0x1f041028 chip=3D0x00541000 rev=
=3D0x01
hdr=3D0x00
    vendor =3D 'LSI Logic (Was: Symbios Logic, NCR)'
    device =3D 'SAS 3000 series, 8-port with 1068 -StorPort'
    class =3D mass storage
    subclass =3D SCSI

Did anyone else experience this, or find a proper work-around ?

Thanks in advance for your time,
--=20
Stephane LAPIE, EPITA SRS, Promo 2005
"Even when they have digital readouts, I can't understand them."
--MegaTokyo


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