Re: formatting a 12.73 Tb disk on ROCKS 5.2

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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.



# parted -s /dev/sda mklabel gpt

# parted –s /dev/sda rm 1

# parted –s /dev/sda “mkpart primary xfs 1 -1”



At this point, you should be able to continue as you were trying to do
before.



# mkfs.xfs /dev/sda1


On Thu, May 9, 2013 at 2:39 PM, Doll, Margaret Ann
<margaret_doll@xxxxxxxxx>wrote:

>
>
> On Thu, May 9, 2013 at 1:34 PM, Mike Burger <mburger@xxxxxxxxxxxxxxxxx>wrote:
>
>> > I was going to use parted and create a partition, but I don't know what
>> to
>> > use for the end point.
>> >
>> > Model: AMCC 9650SE-16M DISK (scsi)
>> > Disk /dev/sda: 14.0TB
>> > Sector size (logical/physical): 512B/512B
>> > Partition Table: gpt
>> >
>> >
>> > On Thu, May 9, 2013 at 11:44 AM, <m.roth@xxxxxxxxx> wrote:
>> >
>> >> Doll, Margaret Ann wrote:
>> >> > I used the BIOS setting to create the raid system.  I couldn't format
>> >> it,
>> >> > so I ran fdisk, deleted the partition and created a new partition.
>> >> The
>> >> > new partition with fdisk was approximately the same size as the
>> >> original
>> >> > partition created by the BIOS.
>> >>
>> >> Ok, I don't know what you mean by the BIOS setting - on what? Is this
>> >> attached to a server, or is this an "appliance"? If the former, do you
>> >> mean the firmware for an HBA?
>> >>
>> >> At any rate, you *cannot* use fdisk to do anything with this. There are
>> >> hard-coded limits with fdisk - you *must* use either parted (which is
>> >> user
>> >> surly, if not outright hostile) or gparted (the GUI version, which is,
>> >> well, ok). And you must specify that the partition table - there is no
>> >> MBR
>> >> as we know it, for something this big - must be GPT, not MBR.
>> >>
>> >>       mark
>> >> >
>> >> > On Thu, May 9, 2013 at 11:19 AM, <m.roth@xxxxxxxxx> wrote:
>> >> >
>> >> >> Doll, Margaret Ann wrote:
>> >> >> > I have a raid-5, /dev/sda on a NAS node that has 12.73 Tb of
>> space.
>> >> >> >
>> >> >> > mkfs xfs /dev/sda1
>> >> >> > mke2fs 1.39 (29-May-2006)
>> >> >> > mkfs.ext2: invalid blocks count - /dev/sda1
>> >> >> >
>> >> >>
>> >> >> Question 1: Margaret - did you use parted or gparted, or fdisk, or
>> >> some
>> >> >> NAS utility to create the logical partition? If anything other than
>> >> an
>> >> >> HBA
>> >> >> controller, you've cannot use fdisk, which cannot deal with anything
>> >> >> larger than 2TB.
>> >> >>
>> >> >>         mark
>> >> >>
>> >> >> > I can use
>> >> >> >
>> >> >> > mkfs.ext3 /dev/sda1 works, but it only formats the first 2Tb of
>> >> space.
>> >> >> >
>> >> >> > filesystem            Size  Used Avail Use% Mounted on
>> >> >> > /dev/sdb1              19G  2.8G   16G  16% /
>> >> >> > /dev/sdb5             875G  200M  830G   1% /state/partition
>> >> >> > /dev/sdb2             4.8G  184M  4.4G   5% /var
>> >> >> > tmpfs                 3.9G     0  3.9G   0% /dev/shm
>> >> >> > /dev/sda1             2.0T  199M  1.9T   1% /bigdisk1
>> >> >> >
>> >> >> > How do I get the complete raid system formatted?
>> >> >> >
>> >> >> > Thanks
>>
>> There's another option, altogether.
>>
>> Skip gparted, altogether, and use LVM. Set the entire /dev/sda as an LVM
>> physical volume (instead of creating any partitions on it), add the PV to
>> a volume group, and then build filesystem(s) out using logical volume(s),
>> instead.
>>
>
> More details please.  I want just one giant partition of 12 Tb or more
> when I am finished.
>
>>
>> --
>> Mike Burger
>> http://www.bubbanfriends.org
>>
>> "It's always suicide-mission this, save-the-planet that. No one ever just
>> stops by to say 'hi' anymore." --Colonel Jack O'Neill, SG1
>>
>> --
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>>
>
>
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