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Wrong hd Geometry

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DSC_Zer0

Gawd
Joined
Jul 5, 2001
Messages
802
I have 2 identical hard drives, IBM 75GXP 45gigs. The first hardrive has boot, swap, / and /home on it, while the second hardrive is just a 33 gig fat32 drive with winxp on it. Yes, just 33gigs. It does not and will not recognize the full 45 gigs. And yes, i tried multiple paritions, I can use any combination of 33gigs!

I checked somethings out and came up with some interesting points
The "broken" harddrive has 255 heads, 63 sectors, and 4111 cylinders, while the other "working" harddrive has 255 heads, 63 sectors, and 5606 cylinders. These were reported by cfdisk and fdisk.


I figured that I could just use fdisk and change the 4111 to 5606, reboot, and it would register as 45 gigs, but it does not. I have also tried hardcoding into the bios, but that didnt work. Then i tried selecting none in the bios and seeing if maybe it was passing off the parameters, but that did not yeild any more space ethier.

Here are the outputs of hdparm -I /dev/hda and /dev/hdb

The "working" hd
Code: 
hydrogen root # hdparm -I /dev/hda
 
/dev/hda:
 
ATA device, with non-removable media
powers-up in standby; SET FEATURES subcmd spins-up.
        Model Number:       IBM-DTLA-307045
        Serial Number:      YMEYMMX7935
        Firmware Revision:  TX6OA60A
Standards:
        Used: ATA/ATAPI-5 T13 1321D revision 1
        Supported: 5 4 3 2 & some of 6
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           15      15
        sectors/track   63      63
        --
        CHS current addressable sectors:   15481935
        LBA    user addressable sectors:   90069840
        device size with M = 1024*1024:       43979 MBytes
        device size with M = 1000*1000:       46115 MBytes (46 GB)
Capabilities:
        LBA, IORDY(can be disabled)
        bytes avail on r/w long: 40     Queue depth: 32
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 16
        Advanced power management level: unknown setting (0x0000)
        Recommended acoustic management value: 128, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=240ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    NOP cmd
           *    READ BUFFER cmd
           *    WRITE BUFFER cmd
           *    Host Protected Area feature set
                Release interrupt
           *    Look-ahead
           *    Write cache
           *    Power Management feature set
                Security Mode feature set
           *    SMART feature set
                Automatic Acoustic Management feature set
                SET MAX security extension
                Address Offset Reserved Area Boot
                SET FEATURES subcommand required to spinup after power up
                Power-Up In Standby feature set
                Advanced Power Management feature set
           *    READ/WRITE DMA QUEUED
Security:
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
        not     supported: enhanced erase
        38min for SECURITY ERASE UNIT.
HW reset results:
        CBLID- above Vih
        Device num = 0 determined by CSEL
Checksum: correct

the "broken" hd
Code: 
hydrogen root # hdparm -I /dev/hdb
 
/dev/hdb:
 
ATA device, with non-removable media
powers-up in standby; SET FEATURES subcmd spins-up.
        Model Number:       IBM-DTLA-307045
        Serial Number:      YMEYMMX7917
        Firmware Revision:  TX6OA60A
Standards:
        Used: ATA/ATAPI-5 T13 1321D revision 1
        Supported: 5 4 3 2 & some of 6
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        --
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:   66055248
        device size with M = 1024*1024:       32253 MBytes
        device size with M = 1000*1000:       33820 MBytes (33 GB)
Capabilities:
        LBA, IORDY(can be disabled)
        bytes avail on r/w long: 40     Queue depth: 32
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 16  Current = 16
        Advanced power management level: unknown setting (0x0000)
        Recommended acoustic management value: 128, current value: 254
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4
             Cycle time: no flow control=240ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    NOP cmd
           *    READ BUFFER cmd
           *    WRITE BUFFER cmd
           *    Host Protected Area feature set
                Release interrupt
           *    Look-ahead
           *    Write cache
           *    Power Management feature set
                Security Mode feature set
           *    SMART feature set
                Automatic Acoustic Management feature set
                SET MAX security extension
                Address Offset Reserved Area Boot
                SET FEATURES subcommand required to spinup after power up
                Power-Up In Standby feature set
                Advanced Power Management feature set
           *    READ/WRITE DMA QUEUED
Security:
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
        not     frozen
        not     expired: security count
        not     supported: enhanced erase
        38min for SECURITY ERASE UNIT.
HW reset results:
        CBLID- above Vih
        Device num = 1 determined by CSEL
Checksum: correct
As you can see hdparm displays the same cylinder count for both of the drives, however its different than what fdisk/cfdisk reports.


Any help would be great. I've run out of ideas...
 
Strangely, the working hard drive lists 15 heads, while the questionable drive lists 16 heads. Have you consulted Hitachi for technical support/RMA possibilities? They would know best.
 
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