Re: Slow I/O performance on SAS1064

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On Thu, Mar 06, 2014 at 12:51:27PM -0800, Mark Knecht wrote:
> On Wed, Mar 5, 2014 at 1:40 PM, markus <markus@xxxxxxx> wrote:
> > On Wed, Mar 05, 2014 at 10:21:07AM -0800, Mark Knecht wrote:
> >> On Wed, Mar 5, 2014 at 9:50 AM, Markus <markus@xxxxxxx> wrote:
> >> <SNIP>
> I am not familiar with this message:
> 
> "Device supports SMART and is Disabled"
> 
> but there are lots of posts out there with folks asking about it.
> Possibly you can figure out what's causing smart not to turn on, get
> it turned on and get some info.
right , thats why i writing to the scsi and lsi devs , because die disk supports smart and lots of other features, but the controller driver failes to enable support for this.

Now i get that the mpt driver provides /dev/sg[0-1] 

root@outpost:~# smartctl -d scsi -x /dev/sg1
smartctl 6.2 2013-07-26 r3841 [sparc64-linux-3.13.5-mar] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

User Capacity:        2,000,398,934,016 bytes [2.00 TB]
Logical block size:   512 bytes
Logical Unit id:      0x50000394e2380537
Serial number:        7365P4KNT
Device type:          disk
Local Time is:        Fri Mar  7 09:54:47 2014 CET
SMART support is:     Available - device has SMART capability.
SMART support is:     Disabled
Temperature Warning:  Disabled or Not Supported
Read Cache is:        Enabled
Writeback Cache is:   Enabled

=== START OF READ SMART DATA SECTION ===
SMART Health Status: OK

Error Counter logging not supported

Device does not support Self Test logging
Device does not support Background scan results logging
scsiPrintSasPhy Log Sense Failed [unsupported field in scsi command]

so i had read those posts and i tried but it won't work.

root@outpost:~/lsiutil# smartctl -r scsiioctl,3 -s on -d scsi /dev/sg1
smartctl 6.2 2013-07-26 r3841 [sparc64-linux-3.13.5-mar] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

 [inquiry: 12 01 00 01 fc 00 ]
  scsi_status=0x0, host_status=0x0, driver_status=0x0
  info=0x0  duration=0 milliseconds  resid=500
  Incoming data, len=8:
 00     00 00 00 04 00 80 83 89                                                 
 [inquiry: 12 00 00 00 24 00 ]
  scsi_status=0x0, host_status=0x0, driver_status=0x0
  info=0x0  duration=4 milliseconds  resid=0
  Incoming data, len=36:
 00     00 00 05 12 45 00 00 02  41 54 41 20 20 20 20 20                        
 10     54 4f 53 48 49 42 41 20  4d 51 30 31 41 42 42 32                        
 20     30 55 20 20                                                             
=== START OF ENABLE/DISABLE COMMANDS SECTION ===
 [mode sense(6): 1a 00 1c 00 40 00 ]
  scsi_status=0x0, host_status=0x0, driver_status=0x0
  info=0x0  duration=4 milliseconds  resid=40
  Incoming data, len=24:
 00     17 00 00 08 00 00 00 00  00 00 02 00 1c 0a 08 06                        
 10     08 00 00 00 00 00 00 00                                                 
 [mode sense(6): 1a 00 5c 00 40 00 ]
  scsi_status=0x0, host_status=0x0, driver_status=0x0
  info=0x0  duration=0 milliseconds  resid=40
  Incoming data, len=24:
 00     17 00 00 08 00 00 00 00  00 00 02 00 1c 0a 00 00                        
 10     00 00 00 00 00 00 00 00                                                 
 00     00 00 00 08 00 00 00 00  00 00 02 00 1c 0a 08 06                        
 10     08 00 00 00 00 00 00 00                                                 
 [mode select(6): 15 10 00 00 18 00 ]
  Outgoing data, len=24:
  scsi_status=0x2, host_status=0x0, driver_status=0x8
  info=0x1  duration=0 milliseconds  resid=24
  >>> Sense buffer, len=18:
 00     70 00 0b 00 00 00 00 0a  00 00 00 00 00 00 00 00                        
 10     00 00                                                                   
  status=2: sense_key=b asc=0 ascq=0
unable to enable Exception control and warning [aborted command]


> 
> Sorry I cannot help more.
> 
> Good luck,
> Mark

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