Re: Determining which spindle is out of order

["Mathias Burén" <mathias.buren@gmail.com>]

On 6 November 2010 16:02, Phil Turmel <philip@turmel.org> wrote:
> [added linux-raid CC: back in]
>
> On 11/06/2010 11:46 AM, John Robinson wrote:
>> On 06/11/2010 15:12, Phil Turmel wrote:
>> [...]
>>> Thanks for the feedback.  The script only looks in sysfs for controllers
>>> implementing the scsi_host interface.  So it won't pick up anything using
>>> the legacy IDE interface.  If that's not the case on the first server, I'd
>>> like to see lspci -vvv for the controller in question.
>>
>> I get no output on my CentOS 5, kernel-xen-2.6.18-194.8.1.el5.centos.plus, much the same as the CentOS/RHEL kernel-xen-2.6.18-194.8.1.el5.
>>
>> Here's my lspci -vvv for my storage/SCSI devices:
>
> [snip /]
>
>> [...]
>>> find /sys/devices/ -name scsi_host |check_host
>>
>> This may be the culprit, this find command finds nothing, but I think my devices still support the sysfs scsi_host interface:
>>
>> [root@beast ~]# find /sys/devices/ -name scsi_host
>> [root@beast ~]# find /sys/devices/ -name *scsi_host*
>> /sys/devices/pci0000:00/0000:00:1f.2/host7/scsi_host:host7
>> /sys/devices/pci0000:00/0000:00:1f.2/host6/scsi_host:host6
>> /sys/devices/pci0000:00/0000:00:1f.2/host5/scsi_host:host5
>> /sys/devices/pci0000:00/0000:00:1f.2/host4/scsi_host:host4
>> /sys/devices/pci0000:00/0000:00:1f.2/host3/scsi_host:host3
>> /sys/devices/pci0000:00/0000:00:1f.2/host2/scsi_host:host2
>> /sys/devices/pci0000:00/0000:00:1e.0/0000:05:01.1/host9/scsi_host:host9
>> /sys/devices/pci0000:00/0000:00:1e.0/0000:05:01.0/host8/scsi_host:host8
>> /sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host1/scsi_host:host1
>> /sys/devices/pci0000:00/0000:00:1c.4/0000:03:00.0/host0/scsi_host:host0
>> [root@beast ~]#
>>
>> When I change the script to use my find command, I get:
>>
>> [root@beast ~]# ~john/projects/describe_scsi/describe_scsi
>> /home/john/projects/describe_scsi/describe_scsi: line 8: udevadm: command not found
>> Controller device @ pci0000:00/0000:00:1f.2 []
>>     host7: [Empty]
>>     host6: [Empty]
>>     host5: [Empty]
>>     host4: [Empty]
>>     host3: [Empty]
>>     host2: [Empty]
>> /home/john/projects/describe_scsi/describe_scsi: line 8: udevadm: command not found
>> Controller device @ pci0000:00/0000:00:1e.0/0000:05:01.1 []
>>     host9: [Empty]
>> /home/john/projects/describe_scsi/describe_scsi: line 8: udevadm: command not found
>> Controller device @ pci0000:00/0000:00:1e.0/0000:05:01.0 []
>>     host8: [Empty]
>> /home/john/projects/describe_scsi/describe_scsi: line 8: udevadm: command not found
>> Controller device @ pci0000:00/0000:00:1c.4/0000:03:00.0 []
>>     host1: [Empty]
>>     host0: [Empty]
>> [root@beast ~]#
>
> Indeed.  The sysfs layout changed since kernel 2.6.18.  I'm guessing the use of
> CONFIG_SYSFS_DEPRECATED and/or CONFIG_SYSFS_DEPRECATED_V2 will interfere with my
> script in current kernels.
>
> I'll poke around in one of my VMs when I get a chance.
>
>> Now I need to find udevadm I guess. It must have been introduced since the udev version that comes with RHEL/CentOS 5, which is udev-095-14.21.el5_5.1. rpmfind.net suggests it's only been in since version 118 or so. Never mind :-)
>
> Heh.  Anyone know the equivalent command in earlier versions of udev?
>
>>
>> Cheers,
>>
>> John.
>>
>
> Regards,
>
> Phil
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Hi, just tested the script (nice!) and it seems to work fine on 2.6.36
(Archlinux) 64-bit:


[fackamato@ion bin]$ sudo ./drivescan.sh
Controller device @ pci0000:00/0000:00:0b.0 [ahci]
  SATA controller: nVidia Corporation MCP79 AHCI Controller (rev b1)
    host0: /dev/sda ATA Corsair CSSD-F60
    host1: /dev/sdb ATA WDC WD20EARS-00M
    host2: /dev/sdc ATA WDC WD20EARS-00M
    host3: /dev/sdd ATA WDC WD20EARS-00M
    host4: [Empty]
    host5: [Empty]
Controller device @ pci0000:00/0000:00:16.0/0000:05:00.0 [sata_mv]
  SCSI storage controller: HighPoint Technologies, Inc. RocketRAID
230x 4 Port SATA-II Controller (rev 02)
    host6: [Empty]
    host7: /dev/sde ATA SAMSUNG HD204UI
    host8: /dev/sdf ATA WDC WD20EARS-00M
    host9: /dev/sdg ATA SAMSUNG HD204UI
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