Disk partitions and LVM limits

[Geofrey Rainey]

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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