[dm-devel] Re: Clariion EMC CX300 and "long trespass command will be send" message

[Javier Barroso]

On Tue, Mar 10, 2009 at 11:41 AM, Javier Barroso <javibarroso at gmail.com>wrote:

> Hi list,
>
> We have debian lenny a iscsi + multipath system with a Clariion EMC RX300
> as iscsi server. It is working fine, but from some days ago, it is writting
> (continously) on syslog:

Sorry, I wanted to say EMC Clariion CX300

>
>
> [5078349.903410] scsi 6:0:0:0: rejecting I/O to dead device
> [5078349.903410] scsi 7:0:0:0: rejecting I/O to dead device
> [5078349.903410] device-mapper: multipath emc: long trespass command will
> be send
> [5078349.903410] device-mapper: multipath emc: honor reservation bit will
> not be set (default)
> [5078349.947653] device-mapper: table: 254:6: multipath: unknown path
> selector type
> [5078349.947708] device-mapper: ioctl: error adding target to table
>
> scsi 6:0:0:0 not exist at lsscsi:
>
> # lscsi
> [8:0:0:0]    disk    DGC      RAID 5           0324  /dev/sdc
> [9:0:0:0]    disk    DGC      RAID 5           0324  /dev/sdd
> [10:0:0:0]   disk    DGC      RAID 5           0324  /dev/sda
> [11:0:0:0]   disk    DGC      RAID 5           0324  /dev/sdb
>
> multipath is working fine:
> # multipath -ll
> mpath0 (360060160e5101f0020efc45a01cddd11) dm-6 DGC     ,RAID 5
> [size=512G][features=1 queue_if_no_path][hwhandler=1 emc]
> \_ round-robin 0 [prio=2][active]
>  \_ 8:0:0:0  sdc 8:32  [active][ready]
>  \_ 9:0:0:0  sdd 8:48  [active][ready]
> \_ round-robin 0 [prio=0][enabled]
>  \_ 10:0:0:0 sda 8:0   [active][ready]
>  \_ 11:0:0:0 sdb 8:16  [active][ready]
>
> Dispositve 254:6 is mpath0:
> # devmap_name 254 6
> mpath0
>
> How could can I stop scsi system / multipath from this messages ?
>
> Is there any command who could help us ?
>
> Thank you for any advice
> PD: Sorry for my english
>
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