Doll, Margaret Ann wrote:
> parted align-check optimal /dev/sda1
> Error: Could not stat device align-check - No such file or directory.
> Retry/Cancel? cancel
>
Sorry - you should have check the man page. I see it's parted /dev/sda1
align-check optimal
> On Thu, May 9, 2013 at 3:26 PM, Doll, Margaret Ann
> <[email protected]>wrote:
>
>> The drives are Seagate Constellation disks, 1 Tb apiece. I have 15 of
>> them in the array.
>>
>>
>> On Thu, May 9, 2013 at 3:25 PM, <[email protected]> wrote:
>>
>>> Doll, Margaret Ann wrote:
>>> > On Thu, May 9, 2013 at 3:09 PM, <[email protected]> wrote:
>>> >
>>> >> Doll, Margaret Ann wrote:
>>> >> > The answer came from my vendor at Atipa.
>>> >> >
>>> >> > You will need to change the partitioning scheme to use GPT in
>>> order
>>> to
>>> >> > enable greater than 2TB support.
>>> >>
>>> >> Which is what I was saying.
>>> >> >
>>> >> > # parted -s /dev/sda mklabel gpt
>>> >>
>>> >> This is command-line version of what I said - I was giving you the
>>> >> interactive version. I do not understand why the above would work,
>>> and
>>> >> what I suggested you do gave you "invalid token".
>>> >> >
>>> >> > # parted –s /dev/sda rm 1
>>> >>
>>> >> The above removes partition 1.
>>> >> >
>>> >> > # parted –s /dev/sda “mkpart primary xfs 1 -1”
>>> >> >
>>> >> You've decided to use xfs, yes? And the 1 bothers me, a lot. That's
>>> >> either sector or cylinder... and they did *not* tell you to use -a
>>> optimal for
>>> >> aligning the partition. If you do parted -l, what do you see?
>>> >>
>>> > [root@nas-0-0 ~]# parted -l
>>> >
>>> > Model: AMCC 9650SE-16M DISK (scsi)
>>> > Disk /dev/sda: 14.0TB
>>> > Sector size (logical/physical): 512B/512B
>>> > Partition Table: gpt
>>> >
>>> > Number Start End Size File system Name Flags
>>> > 1 17.4kB 14.0TB 14.0TB xfs primary
>>> >
>>> > df -h
>>> >
>>> > /dev/sda1 13T 8.4G 13T 1% /bigdisk1
>>>
>>> Yup - if this were a single disk, that would not be a good place to
>>> start,
>>> esp. if it was a large disk. I don't know how big the drives in the
>>> array
>>> are, and even though parted says it's 512/512 sector size, most new
>>> large
>>> drives are, in reality, 4k in hardware/firmware. You *might* consider
>>> repartitioning, but start at 2048k, rather than 1. I suspect that if
>>> you
>>> did
>>> parted align-check optimal /dev/sda1
>>> that it would tell you it was not aligned properly.
>>>
>>> mark
>>>
>>>
>>>
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>>
>>
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