Re: Wrong disk size when partitioning

[Joel Granados]

Hi Raj:

What does `parted DEVCE print free` spit out?

I'm wondering if it would help to just erase the partition table `dd 
if=/dev/zero of=DEVICE bs=1024 count=20` and then create a new one from scratch.

Regards.
----- "Raj Mathur" <address@hidden> wrote:

> Hi,
> 
> Have a strange problem.  System with 6 x 750GB SATA drives installed. 
> 
> One failed, so replaced it.  Drive is recognised properly at boot
> time:
> 
> SCSI device sdc: 1465149168 512-byte hdwr sectors (750156 MB)
> sdc: Write Protect is off
> sdc: Mode Sense: 00 3a 00 00
> SCSI device sdc: drive cache: write back
> SCSI device sdc: 1465149168 512-byte hdwr sectors (750156 MB)
> sdc: Write Protect is off
> sdc: Mode Sense: 00 3a 00 00
> SCSI device sdc: drive cache: write back
>  sdc:<6>ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 23 (level, low) ->
> 
> IRQ 58
> 
> However, both parted and fdisk insist on treating the drive as a 50GB
> 
> drive for some reason:
> 
> fdisk -l /dev/sdc
> 
> Disk /dev/sdc: 50.0 GB, 50000000000 bytes
> 255 heads, 63 sectors/track, 6078 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> 
> parted /dev/sdc
> GNU Parted 1.7.1
> Using /dev/sdc
> Welcome to GNU Parted! Type 'help' to view a list of commands.
> (parted) mklabel gpt
> (parted) print
> 
> Disk /dev/sdc: 50.0GB
> Sector size (logical/physical): 512B/512B
> Partition Table: gpt
> 
> Number  Start  End  Size  File system  Name  Flags
> 
> Any idea why this could be happening?  Would there be any way of 
> recovering the correct disk size without rebooting?  This is a failed
> 
> MD volume and I'd prefer not having to bring the server down again to
> 
> fix this issue.
> 
> Apologies if this is the wrong list to post to, I couldn't locate a 
> parted users mailing list.
> 
> Regards,
> 
> -- Raju
> -- 
> Raj Mathur                address@hidden     
> http://kandalaya.org/
>        GPG: 78D4 FC67 367F 40E2 0DD5  0FEF C968 D0EF CC68 D17F
> PsyTrance & Chill: http://schizoid.in/   ||   It is the mind that
> moves
> 
> 
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-- 
Joel Andres Granados
Red Hat / Brno Czech Republic