Re: 3 TB disk troubles

2013-02-14 Thread Thomas Mueller

>  I recently bought a 3 TB external hard drive.  I attached it to the
> Firewire (400) bus and waited for my 8.2-STABLE i386 system to recognize it.
> After a small flurry of Firewire protocol messages, the kernel eventually
> said,

> Feb 12 23:35:42 hellas kernel: da2 at sbp0 bus 0 scbus0 target 1 lun 0
> Feb 12 23:35:42 hellas kernel: da2:  Fixed Direct 
> Access SCSI-0 device
> Feb 12 23:35:42 hellas kernel: da2: 50.000MB/s transfers
> Feb 12 23:35:42 hellas kernel: da2: 2861588MB (5860533167 512 byte sectors: 
> 255H
 63S/T 364801C)

> So far, so good, I thought.
>  Next I tried to use gpart(8) to set up a partition table.  However,
> gpart, gpte (from sysutils/gpte), diskinfo(8), et al. only see the device
> as a 2 TB drive.

> hellas# diskinfo -v /dev/da2
> /dev/da2
> 512 # sectorsize
> 2199023253504   # mediasize in bytes (2T)
> 4294967292  # mediasize in sectors
> 0   # stripesize
> 0   # stripeoffset
> 267349  # Cylinders according to firmware.
> 255 # Heads according to firmware.
> 63  # Sectors according to firmware.
> # Disk ident.

> hellas#

>  I have searched the archives of this list and several others, but
> haven't found anything helpful.  This disk is *not* intended as a boot
> disk, just data storage.  Is there any hope of using its full capacity?
> Or have I effectively bought an overpriced 2 TB drive?
>  Please Cc: me directly in any replies because I am subscribed to
> the digest form of this list and would like to see responses without
> having to wait up to 24 hours. :-)  Thanks in advance for any help!


> Scott Bennett, Comm. ASMELG, CFIAG

There is Rod Smith's gdisk, a gpt counterpart of fdisk.

http://rodsbooks.com/gdisk/

and available in FreeBSD ports collection, one version (0.8.5) behind Rod's 
current version 0.8.6.

This works for me.


Tom

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Re: 3 TB disk troubles

2013-02-14 Thread Damien Fleuriot

On 14 Feb 2013, at 17:01, Warren Block  wrote:

> On Thu, 14 Feb 2013, Scott Bennett wrote:
> 
>>The confusing thing is that the kernel says it's a 3 TB device,
>> but the utility programs say otherwise.
> 
> There are more than a few SATA to USB adapters that are not capable of 
> dealing with larger devices.  I've seen at least one that could not handle a 
> 1T drive.  Now that larger drives are becoming more common, the limits are 
> often shown on the device box or description.
> 
> The kernel may still identify the device correctly, possibly with different 
> capacity detection.
> 
> As mentioned, ESATA or just bypassing the SATA/USB/Firewire adapter and 
> connecting directly to the drive should give the full capacity.
> 

I might be completely off here but, what about trying it over FireWire on a x64 
box, as opposed to his 32bit 8.2 ?

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Re: 3 TB disk troubles

2013-02-14 Thread Warren Block

On Thu, 14 Feb 2013, Scott Bennett wrote:


The confusing thing is that the kernel says it's a 3 TB device,
but the utility programs say otherwise.


There are more than a few SATA to USB adapters that are not capable of 
dealing with larger devices.  I've seen at least one that could not 
handle a 1T drive.  Now that larger drives are becoming more common, the 
limits are often shown on the device box or description.


The kernel may still identify the device correctly, possibly with 
different capacity detection.


As mentioned, ESATA or just bypassing the SATA/USB/Firewire 
adapter and connecting directly to the drive should give the full 
capacity.

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Re: 3 TB disk troubles

2013-02-14 Thread Paul Schmehl
--On February 14, 2013 6:33:31 AM -0600 Scott Bennett  
wrote:



 The confusing thing is that the kernel says it's a 3 TB device,
but the utility programs say otherwise.
 Thanks for your reply, though.  I may have to take the device back
to the store I bought it and ask them to demonstrate to me that it
actually works for them as a 3 TB drive.  Sigh.



What utilities are you referring to?  If it's fdisk and bsdlabel, those can 
only "see" 2TB no matter how big the disk is.  What does gpart show tell 
you?


  Scott Bennett, Comm. ASMELG, CFIAG
**
* Internet:   bennett at mp.cs.niu.edu   *
**
* "A well regulated and disciplined militia, is at all times a good  *
* objection to the introduction of that bane of all free governments *
* -- a standing army."   *
*-- Gov. John Hancock, New York Journal, 28 January 1790 *
**
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--
Paul Schmehl, Senior Infosec Analyst
As if it wasn't already obvious, my opinions
are my own and not those of my employer.
***
"It is as useless to argue with those who have
renounced the use of reason as to administer
medication to the dead." Thomas Jefferson
"There are some ideas so wrong that only a very
intelligent person could believe in them." George Orwell

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Re: 3 TB disk troubles

2013-02-14 Thread Scott Bennett
 On Thu, 14 Feb 2013 13:21:38 +0100 Joar Jegleim 
wrote:

>I could be completely off mark here, but does that external drive have
>eSata too ?

 No, it only has Firewire 400 and USB 2.0 sockets.

>Your problem resembles a lot something I struggled with a while ago.
>I'd bought an external hd case + a 3TB drive for my girlfriend , the
>external hd case supported eSATA and usb .
>
>I had a lot of problems when connecting that 3TB drive to my laptop
>via usb (I didn't have eSATA), the drive showed up as only 2TB .
>It turned out that the external drive case required to be connected
>via eSATA for +2TB drives, the manual said so, I had only forgotten
>about that .

 Unfortunately, mine did not come with a manual. :-(  I suppose
I could try it on a USB 2.0 port to see if that makes any difference.
>
>Via eSATA the drive was recognized as 3TB, I think the 'problem' was
>OS agnostic, since the same happened on my girlfriends mac.
>
 The confusing thing is that the kernel says it's a 3 TB device,
but the utility programs say otherwise.
 Thanks for your reply, though.  I may have to take the device back
to the store I bought it and ask them to demonstrate to me that it
actually works for them as a 3 TB drive.  Sigh.


  Scott Bennett, Comm. ASMELG, CFIAG
**
* Internet:   bennett at mp.cs.niu.edu   *
**
* "A well regulated and disciplined militia, is at all times a good  *
* objection to the introduction of that bane of all free governments *
* -- a standing army."   *
*-- Gov. John Hancock, New York Journal, 28 January 1790 *
**
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Re: 3 TB disk troubles

2013-02-14 Thread Joar Jegleim
I could be completely off mark here, but does that external drive have
eSata too ?
Your problem resembles a lot something I struggled with a while ago.
I'd bought an external hd case + a 3TB drive for my girlfriend , the
external hd case supported eSATA and usb .

I had a lot of problems when connecting that 3TB drive to my laptop
via usb (I didn't have eSATA), the drive showed up as only 2TB .
It turned out that the external drive case required to be connected
via eSATA for +2TB drives, the manual said so, I had only forgotten
about that .

Via eSATA the drive was recognized as 3TB, I think the 'problem' was
OS agnostic, since the same happened on my girlfriends mac.

regards
Joar Jegleim


On 14 February 2013 12:16, Scott Bennett  wrote:
>  I recently bought a 3 TB external hard drive.  I attached it to the
> Firewire (400) bus and waited for my 8.2-STABLE i386 system to recognize it.
> After a small flurry of Firewire protocol messages, the kernel eventually
> said,
>
> Feb 12 23:35:42 hellas kernel: da2 at sbp0 bus 0 scbus0 target 1 lun 0
> Feb 12 23:35:42 hellas kernel: da2:  Fixed Direct 
> Access SCSI-0 device
> Feb 12 23:35:42 hellas kernel: da2: 50.000MB/s transfers
> Feb 12 23:35:42 hellas kernel: da2: 2861588MB (5860533167 512 byte sectors: 
> 255H
>  63S/T 364801C)
>
> So far, so good, I thought.
>  Next I tried to use gpart(8) to set up a partition table.  However,
> gpart, gpte (from sysutils/gpte), diskinfo(8), et al. only see the device
> as a 2 TB drive.
>
> hellas# diskinfo -v /dev/da2
> /dev/da2
> 512 # sectorsize
> 2199023253504   # mediasize in bytes (2T)
> 4294967292  # mediasize in sectors
> 0   # stripesize
> 0   # stripeoffset
> 267349  # Cylinders according to firmware.
> 255 # Heads according to firmware.
> 63  # Sectors according to firmware.
> # Disk ident.
>
> hellas#
>
>  I have searched the archives of this list and several others, but
> haven't found anything helpful.  This disk is *not* intended as a boot
> disk, just data storage.  Is there any hope of using its full capacity?
> Or have I effectively bought an overpriced 2 TB drive?
>  Please Cc: me directly in any replies because I am subscribed to
> the digest form of this list and would like to see responses without
> having to wait up to 24 hours. :-)  Thanks in advance for any help!
>
>
>   Scott Bennett, Comm. ASMELG, CFIAG
> **
> * Internet:   bennett at mp.cs.niu.edu   *
> **
> * "A well regulated and disciplined militia, is at all times a good  *
> * objection to the introduction of that bane of all free governments *
> * -- a standing army."   *
> *-- Gov. John Hancock, New York Journal, 28 January 1790 *
> **
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> freebsd-questions@freebsd.org mailing list
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-- 
--
Joar Jegleim
Homepage: http://cosmicb.no
Linkedin: http://no.linkedin.com/in/joarjegleim
fb: http://www.facebook.com/joar.jegleim
AKA: CosmicB @Freenode

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3 TB disk troubles

2013-02-14 Thread Scott Bennett
 I recently bought a 3 TB external hard drive.  I attached it to the
Firewire (400) bus and waited for my 8.2-STABLE i386 system to recognize it.
After a small flurry of Firewire protocol messages, the kernel eventually
said,

Feb 12 23:35:42 hellas kernel: da2 at sbp0 bus 0 scbus0 target 1 lun 0
Feb 12 23:35:42 hellas kernel: da2:  Fixed Direct 
Access SCSI-0 device
Feb 12 23:35:42 hellas kernel: da2: 50.000MB/s transfers
Feb 12 23:35:42 hellas kernel: da2: 2861588MB (5860533167 512 byte sectors: 255H
 63S/T 364801C)

So far, so good, I thought.
 Next I tried to use gpart(8) to set up a partition table.  However,
gpart, gpte (from sysutils/gpte), diskinfo(8), et al. only see the device
as a 2 TB drive.

hellas# diskinfo -v /dev/da2
/dev/da2
512 # sectorsize
2199023253504   # mediasize in bytes (2T)
4294967292  # mediasize in sectors
0   # stripesize
0   # stripeoffset
267349  # Cylinders according to firmware.
255 # Heads according to firmware.
63  # Sectors according to firmware.
# Disk ident.

hellas# 

 I have searched the archives of this list and several others, but
haven't found anything helpful.  This disk is *not* intended as a boot
disk, just data storage.  Is there any hope of using its full capacity?
Or have I effectively bought an overpriced 2 TB drive?
 Please Cc: me directly in any replies because I am subscribed to
the digest form of this list and would like to see responses without
having to wait up to 24 hours. :-)  Thanks in advance for any help!


  Scott Bennett, Comm. ASMELG, CFIAG
**
* Internet:   bennett at mp.cs.niu.edu   *
**
* "A well regulated and disciplined militia, is at all times a good  *
* objection to the introduction of that bane of all free governments *
* -- a standing army."   *
*-- Gov. John Hancock, New York Journal, 28 January 1790 *
**
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