[OpenIndiana-discuss] Seagate 3000GB Drive only shows 746GB

[George Wilson]

That's very odd. If you specified the whole disk (c4t0d0) when you do 
the 'zpool create' then zfs should have relabeled the disk as an EFI 
label. From your post it looks like it's still using a Solaris VTOC label:

  Total disk size is 48725 cylinders
              Cylinder size is 32130 (512 byte) blocks

                                                Cylinders
       Partition   Status    Type          Start   End Length    %
       =========   ======    ============  =====   === ====== ===
           1       Active    Solaris           1  48724 48724    100


Instead you should see something like this:

                                                Cylinders
       Partition   Status    Type          Start   End Length    %
       =========   ======    ============  =====   === ======   ===
           1                 EFI               0  50128 50129    100

(obviously with different values)

Does the zpool command fail when you specify the whole disk (i.e. 
c4t0d0)? Or does it just create this whacky partition table? If it's the 
latter then that seems like a bug for sure.

- George


On 9/28/12 2:29 PM, Rainer Heilke wrote:
> Yeah, I always use the whole disk (c4t0d0). Interestingly enough, I 
> have to use slice 0 (c4t0d0s0) partition if I want to use the slice 
> specification to "get the whole disk"; slice 2 doesn't exist, as you 
> can see from the partition info. And slice 0, the "whole disk", says 
> it's only 746GB, same as c4t0d0.... I've been fighting this for a 
> while and tried most everything. :-(
>
> Rainer
> On 9/28/2012 5:40 AM, George Wilson wrote:
>> It looks like this disk has a Solaris VTOC on it so ZFS will only use 
>> the partition size that was manually created (or came shipped with 
>> the drive).
>>
>> Can you try running 'zpool create <pool> <diskname_without_sliceinfo>'?
>>
>> Example: zpool create test c4t0d0
>>
>> - George
>>
>> On 9/28/12 7:27 AM, Rainer Heilke wrote:
>>> When I did a zpool create, it built a 744GB pool.
>>>
>>> Rainer
>>> On 9/28/2012 4:13 AM, Sas(o Kiselkov wrote:
>>>> On 09/28/2012 01:06 PM, Rainer Heilke wrote:
>>>>> Greetings.
>>>>>
>>>>> I've connected a Seagate 3000GB HDD to my OpenIndiana oi_151.1.6 X86
>>>>> server. But when I try to use it, only 746GB show. Printing the
>>>>> partition table from format shows:
>>>>> partition> pri
>>>>> Current partition table (original):
>>>>> Total disk cylinders available: 48722 + 2 (reserved cylinders)
>>>>>
>>>>> Part      Tag    Flag     Cylinders         Size Blocks
>>>>>    0 unassigned    wm       0                0 (0/0/0)              0
>>>>>    1 unassigned    wm       0                0 (0/0/0)              0
>>>>>    2     backup    wu       0 - 48721      746.46GB (48722/0/0) 
>>>>> 1565437860
>>>>>    3 unassigned    wm       0                0 (0/0/0)              0
>>>>>    4 unassigned    wm       0                0 (0/0/0)              0
>>>>>    5 unassigned    wm       0                0 (0/0/0)              0
>>>>>    6 unassigned    wm       0                0 (0/0/0)              0
>>>>>    7 unassigned    wm       0                0 (0/0/0)              0
>>>>>    8       boot    wu       0 -     0       15.69MB 
>>>>> (1/0/0)          32130
>>>>>    9 unassigned    wm       0                0 (0/0/0)              0
>>>>>
>>>>> format> inq
>>>>> Vendor:   ST3000DM
>>>>> Product:  001-9YN166
>>>>> Revision:
>>>>>
>>>>>   Total disk size is 48725 cylinders
>>>>>               Cylinder size is 32130 (512 byte) blocks
>>>>>
>>>>>                                                 Cylinders
>>>>>        Partition   Status    Type          Start   End Length    %
>>>>>        =========   ======    ============  =====   === ====== ===
>>>>>            1       Active    Solaris           1  48724 48724    100
>>>>>
>>>>>
>>>>> So, how can I get ZFS to see the full 3TB?
>>>> Are you trying to use this driver for rpool? If not, you can simply 
>>>> tell
>>>> ZFS to use the entire drive, which should bypass any potential
>>>> partitioning issues.
>>>>
>>>> Cheers,
>>>> -- 
>>>> Saso
>>>>
>>>
>>
>>
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>