Hello,everyone
I've downloaded e4fsprogs-1.41.12-2 for RHEL5 tool to manage my disk
I created a LV of size 15TB which is now in use
Then I need to enlarge it, so I used lvextend command to add 5TB to it.
When I use resize4fs to resize the partion, error appeared:

[root@localhost ~]# resize4fs /dev/VolGroup01/LogVol02
resize4fs 1.41.12 (17-May-2010)
resize4fs: File too large while trying to determine filesystem size

Now I find the LV size is 20TB, but available size is still 15TB:
--- Logical volume ---
LV Name /dev/VolGroup01/LogVol02
VG Name VolGroup01
LV UUID 4yOAKc-keY7-j9qn-Sap1-V4Td-sXMH-Zn7Kmd
LV Write Access read/write
LV Status available
# open 1
LV Size 19.99 TB
Current LE 5240420
Segments 10
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2

/dev/mapper/VolGroup01-LogVol02
15T 14T 323G 98% /storage

I tryed e4fsck, it does not work. I dont know what to do now, can I enlarge my lv efficiently or do I have to roll back it? and how to do that without risking the data in the partion?
Is there anyone can help me?

thank you!

I'd never heard of the e4... tools. The wiki indicates there are minimum levelset requirements.
Which RHEL (specifically), which kernel ?. And why didn't you just use "yum install" ?.