mps questions

Kenneth D. Merry ken at freebsd.org
Thu Feb 3 23:01:11 UTC 2011 

On Wed, Jan 26, 2011 at 11:16:57 +0100, Borja Marcos wrote:
> 
> On Jan 20, 2011, at 6:00 PM, Kenneth D. Merry wrote:
> 
> > If you see all the disks in the LSI BIOS, it most likely means there is a
> > driver bug that is keeping FreeBSD from seeing all the disks.
> > 
> > Try booting with -v (boot -v at the boot loader prompt) and send the full
> > dmesg output.  That will cause the driver to print some additional
> > information when it probes.
> > 
> > After that, try booting with hw.mps.N.debug_level=1 set in loader.conf,
> > where N is either 0 or 1, depending on which mps instance is having the
> > problem.
> > 
> > You can turn it off via sysctl after you boot.
> 
> Sorry, more complete output follows. boot -v and debug enabled for the driver.
> 
> I've omitted plenty of "mps0: writing postindex NNN" messages

It looks like the driver does see 8 disks initially.  Here are the SAS
device pages, interleaved with their repsective PHY pages.  The last two
disks don't have PHY pages associated with them, so that means that the
probe failed to get the PHY page from the controller for those devices.

Try booting with hw.mps.N.debug_level=4

That should give us a printout with the IOC status, and perhaps it'll be
clearer why those devices are failing to probe.

They're in slots 6 and 7 of the enclosure, by the way.  I'm not sure how
that maps to their physical location.

> mps0: SAS Device Page 0	:
> 	Slot: 0
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c4f7d2d
> 	ParentDevHandle: 0xa
> 	PhyNum: 2
> 	AccessStatus: 0x0
> 	DevHandle: 0xb
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

> mps0: SAS PHY Page 0	:
> 	OwnerDevHandle: 0x0001
> 	AttachedDevHandle: 0x000a
> 	AttachedPhyIdentifier: 21
> 	AttachedPhyInfo Reason: Loss DWORD Sync (0x14)
> 	ProgrammedLinkRate: 6.0Gbps (0xa8)
> 	HwLinkRate: 6.0Gbps (0xa8)
> 	ChangeCount: 1
> 	Flags: 0x1
> 	PhyInfo Reason: Power On (0x10000)
> 	NegotiatedLinkRate: 6.0Gbps (0xaa)
> mps0: Found device <c01<SspTarg,Direct>,End Device> <6.0Gbps> <0x000b> <2/0>
> mps0: Triggering rescan of 0:1:-1

> mps0: SAS Device Page 0	:
> 	Slot: 4
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c4f6ec1
> 	ParentDevHandle: 0xa
> 	PhyNum: 3
> 	AccessStatus: 0x0
> 	DevHandle: 0xc
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

> mps0: SAS PHY Page 0	:
> 	OwnerDevHandle: 0x0001
> 	AttachedDevHandle: 0x000a
> 	AttachedPhyIdentifier: 20
> 	AttachedPhyInfo Reason: Loss DWORD Sync (0x14)
> 	ProgrammedLinkRate: 6.0Gbps (0xa8)
> 	HwLinkRate: 6.0Gbps (0xa8)
> 	ChangeCount: 1
> 	Flags: 0x1
> 	PhyInfo Reason: Power On (0x10000)
> 	NegotiatedLinkRate: 6.0Gbps (0xaa)
> mps0: Found device <c01<SspTarg,Direct>,End Device> <6.0Gbps> <0x000c> <2/4>
> mps0: Triggering rescan of 0:4:-1

> mps0: SAS Device Page 0	:
> 	Slot: 5
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c4f7425
> 	ParentDevHandle: 0xa
> 	PhyNum: 4
> 	AccessStatus: 0x0
> 	DevHandle: 0xd
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

> mps0: SAS PHY Page 0	:
> 	OwnerDevHandle: 0x0001
> 	AttachedDevHandle: 0x000a
> 	AttachedPhyIdentifier: 15
> 	AttachedPhyInfo Reason: Loss DWORD Sync (0x14)
> 	ProgrammedLinkRate: 6.0Gbps (0xa8)
> 	HwLinkRate: 6.0Gbps (0xa8)
> 	ChangeCount: 1
> 	Flags: 0x1
> 	PhyInfo Reason: Power On (0x10000)
> 	NegotiatedLinkRate: 6.0Gbps (0xaa)
> mps0: Found device <c01<SspTarg,Direct>,End Device> <6.0Gbps> <0x000d> <2/5>
> mps0: Triggering rescan of 0:5:-1

> mps0: SAS Device Page 0	:
> 	Slot: 1
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c4f7875
> 	ParentDevHandle: 0xa
> 	PhyNum: 5
> 	AccessStatus: 0x0
> 	DevHandle: 0xe
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

> mps0: SAS PHY Page 0	:
> 	OwnerDevHandle: 0x0001
> 	AttachedDevHandle: 0x000a
> 	AttachedPhyIdentifier: 14
> 	AttachedPhyInfo Reason: Loss DWORD Sync (0x14)
> 	ProgrammedLinkRate: 6.0Gbps (0xa8)
> 	HwLinkRate: 6.0Gbps (0xa8)
> 	ChangeCount: 1
> 	Flags: 0x1
> 	PhyInfo Reason: Power On (0x10000)
> 	NegotiatedLinkRate: 6.0Gbps (0xaa)
> mps0: Found device <c01<SspTarg,Direct>,End Device> <6.0Gbps> <0x000e> <2/1>
> mps0: Triggering rescan of 0:2:-1

> mps0: SAS Device Page 0	:
> 	Slot: 2
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c54578d
> 	ParentDevHandle: 0xa
> 	PhyNum: 6
> 	AccessStatus: 0x0
> 	DevHandle: 0xf
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

> mps0: SAS PHY Page 0	:
> 	OwnerDevHandle: 0x0001
> 	AttachedDevHandle: 0x000a
> 	AttachedPhyIdentifier: 13
> 	AttachedPhyInfo Reason: Loss DWORD Sync (0x14)
> 	ProgrammedLinkRate: 6.0Gbps (0xa8)
> 	HwLinkRate: 6.0Gbps (0xa8)
> 	ChangeCount: 1
> 	Flags: 0x1
> 	PhyInfo Reason: Power On (0x10000)
> 	NegotiatedLinkRate: 6.0Gbps (0xaa)
> mps0: Found device <c01<SspTarg,Direct>,End Device> <6.0Gbps> <0x000f> <2/2>
> mps0: Triggering rescan of 0:3:-1


> mps0: SAS Device Page 0	:
> 	Slot: 3
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c545701
> 	ParentDevHandle: 0xa
> 	PhyNum: 7
> 	AccessStatus: 0x0
> 	DevHandle: 0x10
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

> mps0: SAS PHY Page 0	:
> 	OwnerDevHandle: 0x0001
> 	AttachedDevHandle: 0x000a
> 	AttachedPhyIdentifier: 12
> 	AttachedPhyInfo Reason: Loss DWORD Sync (0x14)
> 	ProgrammedLinkRate: 6.0Gbps (0xa8)
> 	HwLinkRate: 6.0Gbps (0xa8)
> 	ChangeCount: 1
> 	Flags: 0x1
> 	PhyInfo Reason: Power On (0x10000)
> 	NegotiatedLinkRate: 6.0Gbps (0xaa)
> mps0: Found device <c01<SspTarg,Direct>,End Device> <6.0Gbps> <0x0010> <2/3>
> mps0: Triggering rescan of 0:6:-1

These two disks don't have PHY pages:

> mps0: SAS Device Page 0	:
> 	Slot: 7
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c5454bd
> 	ParentDevHandle: 0xa
> 	PhyNum: 10
> 	AccessStatus: 0x0
> 	DevHandle: 0x11
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4
> mps0: SAS Device Page 0	:
> 	Slot: 6
> 	EnclosureHandle: 0x2
> 	SASAddress: 0x5000c5002c4f5561
> 	ParentDevHandle: 0xa
> 	PhyNum: 16
> 	AccessStatus: 0x0
> 	DevHandle: 0x12
> 	AttachedPhyIdentifier: 0x0
> 	ZoneGroup: 0
> 	DeviceInfo: c01<SspTarg,Direct>,End Device
> 	Flags: 0x1
> 	PhysicalPort: 0
> 	MaxPortConnections: 1
> 	DeviceName: 0x0
> 	PortGroups: 4
> 	DmaGroup: 0
> 	ControlGroup: 4

Ken
-- 
Kenneth Merry
ken at FreeBSD.ORG

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