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Date:      Tue, 24 Mar 2009 15:00:14 -0400
From:      Charles Sprickman <spork@bway.net>
To:        =?ISO-8859-1?Q?Peter_Ankerst=E5l?= <peter@pean.org>
Cc:        stable@freebsd.org
Subject:   Re: LSI Logic raid status
Message-ID:  <754A2F8B-21E7-493A-BD31-EA5691082D1E@bway.net>
In-Reply-To: <F0FE0D3A-7190-4877-9946-6542071EF731@pean.org>
References:  <91FBB56E-9B1F-469D-A83E-03396AA850FC@pean.org> <61AAA3A1-B794-4CF5-8F16-F30DB42940D9@verweg.com> <F0FE0D3A-7190-4877-9946-6542071EF731@pean.org>

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On Mar 24, 2009, at 9:20 AM, Peter Ankerst=E5l wrote:

>
> On Mar 24, 2009, at 2:08 PM, Ruben van Staveren wrote:
>
>>
>> On 24 Mar 2009, at 13:40, Peter Ankerst=E5l wrote:
>>
>>> Hi,
>>>
>>> I have a LSI Logic sata/sas raid running, is there a way to see =20
>>> the state of
>>> the volume, like optimal, degraded or resyncing?
>>
>> There is sysutils/linux-megacli
>>
> Sorry about that. This is not megaraid its the mpt driver.
> LSI SAS3041E-R PCI-e
>
> mpt0: <LSILogic SAS/SATA Adapter> port 0x2000-0x20ff mem =20
> 0xd0210000-0xd0213fff,0xd0200000-0xd020ffff irq 16 at device 0.0 on =20=

> pci3
> mpt0: [ITHREAD]
> mpt0: MPI Version=3D1.5.19.0
> mpt0: Capabilities: ( RAID-0 RAID-1E RAID-1 )
> mpt0: 1 Active Volume (2 Max)
> mpt0: 2 Hidden Drive Members (14 Max)

While I haven't found a way to actually configure the thing in =20
FreeBSD, the mpt
driver does make some information available via sysctl:

[spork@uniweb ~]$ sysctl -a|grep dev.mpt
dev.mpt.0.%desc: LSILogic SAS/SATA Adapter
dev.mpt.0.%driver: mpt
dev.mpt.0.%location: slot=3D8 function=3D0
dev.mpt.0.%pnpinfo: vendor=3D0x1000 device=3D0x0054 subvendor=3D0x1028 =20=

subdevice=3D0x1f09 class=3D0x010000
dev.mpt.0.%parent: pci2
dev.mpt.0.debug: 3
dev.mpt.0.role: 1
dev.mpt.0.vol_member_wce: NC
dev.mpt.0.vol_queue_depth: 128
dev.mpt.0.vol_resync_rate: 0
dev.mpt.0.nonoptimal_volumes: 0

Don't test whether the "nonoptimal_volumes" parameter works, it does -
but if you pull a drive, FreeBSD likes to panic both on the loss of a =20=

disk
and then again when the drive is reconnected and the rebuild completes.
This is apparently some problem in the CAM layer, not the mpt driver, =20=

but
it's something to be aware of.  Scott Long has noted that this is being
worked on in 8.x.

Charles


>
>
> --
> Peter Ankerst=E5l
> peter@pean.org
> http://www.pean.org/
>
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Charles Sprickman
NetEng/SysAdmin
Bway.net - New York's Best Internet www.bway.net
spork@bway.net - 212.655.9344






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