diaglogd_activity_log is filling up with usb_ms_scsi

[Alexander Ketshvili]

Hi

My diaglogd_activity_log is filling up rapidly

In STM i can see the following errors

Entry Type:  I/O Error
Entry logged on Mon Nov 21 15:46:49 2011
Entry id: 0x4eca3a2900000000

    Device Path:        64000/0x0/0x0
    Product:       
    Product Qualifier:
    Logger:             usb_ms_scsi
    Device Type:       
    Device Qualifier:

---------------------------------------------------------------------------

A corresponding log decoding program name could not be located for usb_ms_scsi.
Below is the raw data (hex) output.

Entry Data:

          0   1   2   3   4   5   6   7   8   9      ASCII
00000000: 00  00  00  00  00  00  01  00  65  73     ........es
00000010: 63  73  69  00  00  00  00  00  00  00     csi.......

******************

Entry Type:  I/O Error
Entry logged on Mon Nov 21 15:48:04 2011
Entry id: 0x4eca3a7400000000
   
    Device Path:        0/3/0/0/0/1.179.3.255.0.0.0
    Product:
    Product Qualifier: 
    Logger:             sctl
    Device Type:
    Device Qualifier:

---------------------------------------------------------------------------

Severity: Critical

Description:
        Target path (class=tgtpath, instance=5) has gone offline.
       
Possible Cause:
        The I-T nexus has gone offline OR has come back online.
       
Recommended Action:
        If I-T nexus has gone offline, check for connectivity
        to the target port. If the I-T nexus has come back  
        online, no action is necessary.

Any ideas how can I stop this i/o errors?