Disk partitions and LVM limits

[Tom Greaser]

If you man fdisk 
fdisk  doesn’t  understand  GUID  Partition  Table  (GPT) and it is not 
       designed for large partitions. In particular case use more
advanced GNU 
       parted(8). 

try parted and let use know if that works.. im coming up on a large BOD
setup soon 


Message: 3
Date: Sat, 9 Feb 2008 23:42:46 +1300
From: "Geofrey Rainey" <Geofrey.Rainey at tvnz.co.nz>
Subject: RE: Disk partitions and LVM limits
To: "General Red Hat Linux discussion list" <redhat-list at redhat.com>
Message-ID:
<FCFF2EC7A020964FBC98B17F17A88AC453D246 at AKVXCH01.tvnzad.tvnz.co.nz>
Content-Type: text/plain; charset="us-ascii"

You could change the sizing of the 5.4TB logical partition into smaller
logical partitions
Of 2TB in size, make each of these a physical volume and add them to a
volume group, then create a logical volume from that volume group.
I don't know if this 2TB limit will affect this procedure though.

-----Original Message-----
From: redhat-list-bounces at redhat.com
[mailto:redhat-list-bounces at redhat.com] On Behalf Of Peter Blajev
Sent: Saturday, 9 February 2008 7:59 a.m.
To: Red Hat List
Subject: Disk partitions and LVM limits

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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