10TB filesystem possible on Red Hat 4 EL System?
Jack Murgia
jackmurgia at hubbadubba.com
Tue Aug 14 17:00:30 CDT 2007
A new PE 2950 / MD1000 system was ordered by purchasing with Red Hat 4
preinstalled. We have run all updates and attempted to create a 10tb array
with no success.
One of our principals here is determined to put a 10TB ext3 filesystem on
this array.
Using fdisk will only create a 2TB partition, so I created a partition with
parted instead, but we can't put an ext3 filesystem onto it. Thought I would
try xfs, but RHN doesn't offer an xfsprogs package.
Do we need to move to RH or CentOS 5 in order to have a 10TB array?
Here are the steps I took:
Using /dev/sdc
(parted) mklabel gpt
(parted) mkpart primary 0 -1
(parted) print
Disk geometry for /dev/sdc: 0.000-10008320.000 megabytes
Disk label type: gpt
Minor Start End Filesystem Name Flags
1 0.017 10008319.000
(parted) quit
Information: Don't forget to update /etc/fstab, if necessary.
[root at xxx ~]# pvcreate /dev/sdc1
Physical volume "/dev/sdc1" successfully created
[root at xxx ~]# vgcreate vg0 /dev/sdc1
Volume group "vg0" successfully created
[root at xxx ~]# vgdisplay
--- Volume group ---
VG Name vg0
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 1
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 0
Open LV 0
Max PV 0
Cur PV 1
Act PV 1
VG Size 9.54 TB
PE Size 4.00 MB
Total PE 2502079
Alloc PE / Size 0 / 0
Free PE / Size 2502079 / 9.54 TB
VG UUID OXokb4-nvoM-dErL-zy1S-8xWc-fiNG-MLy7QL
--- Volume group ---
VG Name VolGroup_ID_7137
System ID
Format lvm2
Metadata Areas 2
Metadata Sequence No 6
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 4
Open LV 4
Max PV 0
Cur PV 2
Act PV 2
VG Size 148.31 GB
PE Size 32.00 MB
Total PE 4746
Alloc PE / Size 4579 / 143.09 GB
Free PE / Size 167 / 5.22 GB
VG UUID PyXGhG-zthh-yIee-q98t-w8LK-63h7-2Xwp0l
[root at cadata3 ~]# lvcreate -n raid10tb -l2502079 vg0
Logical volume "raid10tb" created
[root at xxx ~]# mke2fs -j -b 4096 -t largefile /dev/vg0/raid10tb
mke2fs 1.35 (28-Feb-2004)
mke2fs: bad blocks count - /dev/vg0/raid10tb
Jack Murgia,
Senior Engineer,
Windows/Mac/Linux Integration
OS X Server System Administration
802.11 Network Implementation
Business Development
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