[linux-lvm] >2TB with LVM v1.0.3?

[Peter Smith]

I'm running Redhat v7.2 (very old I know) and LVM v1.0.3 .  I have a 
1600GB ext3 partition currently in use and am planning to grow that by ~ 
6000GB.  From the documentation that I have found, it looks like I may 
be able to do this without modification to my system.  However, I'm 
querying to verify it..

Current ext3 filesystem has 4KB block size (supposedly good to 16TB total.)

I have one LV defined with a size of "3456106496".  I have two PVs, the 
first (sdc) with a size of "1646481408" and a PE size of "1048576", the 
second (sdd) with a size of "1815863296" and a PE size of "1048576" as well.

Allocation of the ext3 is at "1152717492" 1k-blocks used and "548221548" 
1k-blocks available right now.  The RAID system that the storage resides 
on has, up until now, sort-of enforced a roughly <2TB limit per device 
(2 cabinets currently with 1600GB and the RAID can not span cabinets,) I 
can continue to allocate ~ 2TB per device to fit within the kernel 2.4 
32-bit block device limit.  I do not know if I am actually limited to 
1TB per device as I've read before from Redhat, so that may be a 
possibility.

Here is my current vgdisplay
[root at swlx201 root]# vgdisplay
--- Volume group ---
VG Name               data
VG Access             read/write
VG Status             available/resizable
VG #                  0
MAX LV                256
Cur LV                1
Open LV               1
MAX LV Size           2 TB
Max PV                256
Cur PV                2
Act PV                2
VG Size               1.61 TB
PE Size               1 GB
Total PE              1648
Alloc PE / Size       1648 / 1.61 TB
Free  PE / Size       0 / 0


Any comments, questions, etc VERY welcome.

Peter Smith


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