Disk partitions and LVM limits

[Vinod Kumar]

Hi Peter,

You can use parted (or gparted) to create partitions greater than 2TB.

Regards,
Vinod


On 2/12/08, Jonathan Klay <Jonathan.Klay at noaa.gov> wrote:
>
> I found this a bit difficult, but look at Redhat knowledge base article
> 11461.  Seems you have to guess at the max size, as it doesn't tell you
> what it is (it will be something less than 5.4TB!), so I created and
> removed as I zeroed in on it best I could.
>
> Peter Blajev wrote:
>
> > Date: Fri, 8 Feb 2008 11:01:21 -0800
> > From: Peter Blajev <pblajev at ucsd.edu>
> > Subject: Disk partitions and LVM limits
> > To: redhat-sysadmin-list at redhat.com
> > Message-ID: <200802081101.21774.pblajev at ucsd.edu>
> > Content-Type: text/plain;  charset="us-ascii"
> >
> > Hi,
> >
> > I've got a DAS DELL MD1000 with a bunch of SATA drives in RAID 5
> configuration
> > with total space of 5.4TB. This box is attached to a CentOS5 system
> (kernel
> > 2.6.18-53.1.6.el5).
> >
> > Any idea how to make this space usable?
> > Is there a limit how big a partition can be? What is the work around?
> > Is there a limit how big a file system ca be?
> >
> > I've tried to partition it but no matter how bug partition I create
> fdisk
> > spits out these messages on the console:
> > ---
> > sdb: very big device. try to use READ CAPACITY(16).
> > SCSI device sdb: 10248519680 512-byte hdwr sectors (5247242 MB)
> > sdb: Write Protect is off
> > ---
> >
> > I decided to not partition the drive and use LVM but the physical volume
> > stopped at 2TB.
> >
> > So, right now I can't use LVM because of this 2TB limit and I'm not sure
> if I
> > partition the drive how good these partitions are because of the the
> message
> > from fdisk.
> >
> > Any help or idea is highly appreciated.
> >
> > Thank you
> > Peter
> >
> >
> >
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> >
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>
> --
>
> Jonathan Klay     <+>
> System Administrator
>
>
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