Hello,
On Mon, 29 Sep 2008 17:02:33 +0900
Tejun Heo <tj@xxxxxxxxxx> wrote:
> Hello,
>
> I'm writing to everyone who reported to me or linux-ide about frequent
> head unload problem and the report is not yet committed to
> storage-fixup.conf.
>
> I'm a bit worried about the explosion of reports because I really
> wanna avoid creating false entries as they will increase power
> consumption on Linux unnecessarily. I've just updated the Known
> Issues wiki page. Here are the update parts.
>
> Note that modern laptop drives are supposed to unload frequently to
> save power. Unless the unloading is excessive, disabling powersaving
> is not a good idea. It seems that most modern drives are rated for
> 600,000 load/unload cycles which translates to about two years of
> uptime at 35 unloads per hour. Even when assuming continuous 12 hours
> of usage everyday, this means the drive will only reach its rated
> load/unload cycle limit after four years and shouldn't be considered
> malfunctioning. Please only report cases where the expected uptime is
> significantly lower than two years.
>
> ... Also, please include how many times the drive unloads the head
> per-hour under nominal usage without any adjustment.
I also have the following :
[root@tux ~]# while : ; do smartctl --all /dev/sda | grep ^193; sleep 60; done
193 Load_Cycle_Count 0x0012 075 075 000 Old_age Always - 257584
193 Load_Cycle_Count 0x0012 075 075 000 Old_age Always - 257590
193 Load_Cycle_Count 0x0012 075 075 000 Old_age Always - 257593
and counting up...
The machine is not an HP one, but a Dell Inspiron 6400. The disk is :
/dev/sda:
Model=Hitachi HTS542525K9SA00 , FwRev=BBFOC31P, SerialNo=071007BB0F00WDGA8U9C
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=7229kB, MaxMultSect=16, MultSect=?8?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,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=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-2,3,4,5,6,7
* signifies the current active mode
[root@tux ~]# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: Hitachi HTS542525K9SA00
Serial Number: 071007BB0F00WDGA8U9C
Firmware Revision: BBFOC31P
Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5; Revision: ATA8-AST T13 Project D1697 Revision 0b
Standards:
Supported: 8 7 6 5
Likely used: 8
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 488397168
device size with M = 1024*1024: 238475 MBytes
device size with M = 1000*1000: 250059 MBytes (250 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Vendor, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 8
Advanced power management level: 128 (0x80)
Recommended acoustic management value: 128, current value: 254
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
Power-Up In Standby feature set
* SET_FEATURES required to spinup after power up
SET_MAX security extension
Automatic Acoustic Management feature set
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* WRITE_{DMA|MULTIPLE}_FUA_EXT
* 64-bit World wide name
* IDLE_IMMEDIATE with UNLOAD
* WRITE_UNCORRECTABLE command
* SATA-I signaling speed (1.5Gb/s)
* Native Command Queueing (NCQ)
* Host-initiated interface power management
* Phy event counters
* unknown 76[12]
Non-Zero buffer offsets in DMA Setup FIS
DMA Setup Auto-Activate optimization
Device-initiated interface power management
In-order data delivery
* Software settings preservation
* SMART Command Transport (SCT) feature set
* SCT LBA Segment Access (AC2)
* SCT Error Recovery Control (AC3)
* SCT Features Control (AC4)
* SCT Data Tables (AC5)
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
supported: enhanced erase
106min for SECURITY ERASE UNIT. 108min for ENHANCED SECURITY ERASE UNIT.
Checksum: correct
The machine is running Linux 2.6.27-rc5.
> Machines currently on the storage.fixup list are (or at least supposed
> to be) the extreme cases where the drive unloads its head multiple
> times per minute decreasing its life expectancy to under a year.
> Please double check your machine falls into this category.
Seems that I do :(
Can I help in any way ?
Regards,
Paul
--
Paul Rolland E-Mail : rol(at)witbe.net
CTO - Witbe.net SA Tel. +33 (0)1 47 67 77 77
Les Collines de l'Arche Fax. +33 (0)1 47 67 77 99
F-92057 Paris La Defense RIPE : PR12-RIPE
Please no HTML, I'm not a browser - Pas d'HTML, je ne suis pas un navigateur
"Some people dream of success... while others wake up and work hard at it"
There's no heavier burden than a great potential.
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
