[Bug 31072] Re: Hard drive BuffSize=0kB

[dino99]

Using hdparm 9.37-0ubuntu3 on Precise :


oem at oem-desktop:~$ sudo hdparm -i /dev/sda

/dev/sda:

 Model=ST3120026AS, FwRev=3.05, SerialNo=3JT169W6
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=234441648
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:  ATA/ATAPI-1,2,3,4,5,6

 * signifies the current active mode

oem at oem-desktop:~$ sudo hdparm -i /dev/sdb
[sudo] password for oem: 

/dev/sdb:

 Model=ST3160023A, FwRev=3.01, SerialNo=3LJ06087
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
 BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=312579695
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 
 AdvancedPM=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2:  ATA/ATAPI-1,2,3,4,5,6

 * signifies the current active mode

oem at oem-desktop:~$ sudo hdparm -i /dev/sdc

/dev/sdc:

 Model=HDT722516DLAT80, FwRev=V43OA70A, SerialNo=VD071CTCDA8EBN
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=51
 BuffType=DualPortCache, BuffSize=7674kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=321672960
 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4 
 DMA modes:  mdma0 mdma1 mdma2 
 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6 
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1:  ATA/ATAPI-2,3,4,5,6,7

 * signifies the current active mode

So the buffersize is corectly set. I've not found the changelog for this
but it seems fixed now, at least with these 3 hdds.

** Changed in: hdparm (Ubuntu)
       Status: Triaged => Incomplete

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https://bugs.launchpad.net/bugs/31072

Title:
  Hard drive BuffSize=0kB

Status in “hdparm” package in Ubuntu:
  Incomplete

Bug description:
  [nicolas at casimir:~] $ sudo hdparm -i /dev/hda

  /dev/hda:

   Model=TOSHIBA MK8026GAX, FwRev=PA001G, SerialNo=35DO2167T
   Config={ Fixed }
   RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=48
   BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=off
   CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
   IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
   PIO modes:  pio0 pio1 pio2 pio3 pio4
   DMA modes:  sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
   UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
   AdvancedPM=yes: unknown setting WriteCache=enabled
   Drive conforms to: device does not report version:

   * signifies the current active mode

  
  But the cache of this disk are 8Mo

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