Hi,
I'm trying to set up an iscsi 12.5 TB storage for some data backup.
Doing so, I had some difficulties to find the right tool, maybe it's
also a question of the system settings...
The server is a 32Bit CentOS 5.3 with the recent updates. Ths iscsi
connection can be establised.
fdisk and parted fail to create any information on the device or fail
completely.
using the lvm tools (pvcreate, vgcreate, lvcreate), I could finaly
create a logical volume:
lvdisplay /dev/VolGroup02/lvol0
--- Logical volume ---
LV Name /dev/VolGroup02/lvol0
VG Name VolGroup02
LV UUID h7T6tD-JZw2-UEdb-q1ml-BDqp-9E0u-mAop6x
LV Write Access read/write
LV Status available
# open 0
LV Size 12,73 TB
Current LE 3337487
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:4
But, I can't create a filesystem on it:
mkfs.ext3 -m 2 -j -O dir_index -v -b 4096 -L iscsi2lvol0
/dev/mapper/VolGroup02-lvol0
mke2fs 1.39 (29-May-2006)
mkfs.ext3: Filesystem too large. No more than 2**31-1 blocks
(8TB using a blocksize of 4k) are currently supported.
The limits information provided by red hat say, that RH EL 5.1 supports
16 TB filesystems:
http://www.redhat.com/rhel/compare/
-> Maximum filesystem size (Ext3): 16TB in 5.1
Using a block size of 8192 gives a warning, that this size is to large
for that system.
So my question: What is my missunderstanding or what's wrong with my
system? Where are the real limits? Do I have to switch the OS to 64 Bit?
Setting up large Filesystems isn't my staff of life :-)
Thanks for amy how to or help of any kind - Best regards,
Götz
--
Götz Reinicke
IT-Koordinator
Tel. +49 7141 969 420
Fax +49 7141 969 55 420
E-Mail goetz.reinicke@xxxxxxxxxxxxxxx
Filmakademie Baden-Württemberg GmbH
Akademiehof 10
71638 Ludwigsburg
www.filmakademie.de
Eintragung Amtsgericht Stuttgart HRB 205016
Vorsitzende des Aufsichtsrats:
Prof. Dr. Claudia Hübner
Staatsrätin für Demographischen Wandel und für Senioren im Staatsministerium
Geschäftsführer:
Prof. Thomas Schadt
_______________________________________________
CentOS mailing list
CentOS@xxxxxxxxxx
http://lists.centos.org/mailman/listinfo/centos
