[Bug 1366538] Re: Synchronisation/close /dev/sdX: i/o error on target host

Thu, 05 Feb 2015 16:26:12 -0800 

Can't seem to turn off write caching.

~
dt1:sudo hdparm -I /dev/sdc1

/dev/sdc1:
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

ATA device, with non-removable media
        Model Number:       ��+@�Z#��C����`@�������`�O�@�_�@��=�����
        Serial Number:      i`�ih���I@�k= �l��
        Firmware Revision:  ����퉠
��      Media Serial Num:   Ơ��K���`��,���|�
  ���`
        Media Manufacturer: ���Š����`���
        Transport:          Parallel; Revision: 0xf4bb
Standards:
        Used: unknown (minor revision code 0xf35e) 
        Supported: 12 10 
        Likely used: 12
Configuration:
        CHS addressing not supported
        LBA    user addressable sectors: 4085503040
        Logical  Sector size:            3431065366 bytes
        Physical Sector size:            3431065366 bytes
        device size with M = 1024*1024: 13368250701391 MBytes
        device size with M = 1000*1000: 14017626847461 MBytes (14017626847 GB)
        cache/buffer size  = unknown
        Nominal Media Rotation Rate: 62291
Capabilities:
        LBA, IORDY(may be)(cannot be disabled)
        Queue depth: 13
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 129 Current = 94
        Recommended acoustic management value: 68, current value: 32
        DMA: *mdma0 *mdma1 mdma3 *mdma4 *mdma5 *mdma6 *mdma7 (?)
             Cycle time: min=62312ns recommended=57024ns
        PIO: pio0 pio1 pio2 
             Cycle time: no flow control=62367ns  IORDY flow control=41600ns
           *    reserved 69[2]
           *    reserved 69[3]
           *    reserved 69[4]
           *    reserved 69[6]
           *    DOWNLOAD MICROCODE DMA command
           *    SET MAX SETPASSWORD/UNLOCK DMA commands
           *    DEVICE CONFIGURATION SET/IDENTIFY DMA commands
           *    Long physical sector diagnostics
           *    CFast specification support
           *    Data Set Management TRIM supported (limit 62355 blocks)
           *    Deterministic read ZEROs after TRIM
                Removable Media Status Notification feature set supported
Security: 
        Master password revision code = 34944
        not     supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
                supported: enhanced erase
Integrity word not set (found 0xf371, expected 0x88a5)
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Device Sleep:
        DEVSLP Exit Timeout (DETO): 20 ms (default)
        Minimum DEVSLP Assertion Time (MDAT): 10 ms (default)
~
~
dt1:sudo hdparm -W /dev/sdc1

/dev/sdc1:
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 write-caching = not supported
~
~
dt1:sudo hdparm -W0 /dev/sdc1

/dev/sdc1:
 setting drive write-caching to 0 (off)
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 write-caching = not supported
~
dt1:sudo hdparm -W /dev/sdc1

/dev/sdc1:
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 write-caching =  1 (on)
~
I also tried with /dev/sdc,  
~
dt1:sudo hdparm -W0 /dev/sdc

/dev/sdc:
 setting drive write-caching to 0 (off)
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 write-caching =  0 (off)
~
dt1:sudo hdparm -W /dev/sdc

/dev/sdc:
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 00 00 00 00 20 00 
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 write-caching =  1 (on)
~

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Title:
  Synchronisation/close /dev/sdX: i/o error on target host

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