Extending ext3 filesystem RHEL5

Yanick Quirion — Tue, 17 Apr 2007 14:27:20 GMT

Dear all,

I would like to resize a sile system in linux. My system is a HP DL380G5 with SmartArray P400 (SAS) controller.

I'm going to HP System Management Homepage and start Array Configuration Utility to extend my LUN. I resize it from 100GB to 150GB. Until then, everything is working fine.

Once the controller has finished its resising operation, I can see that the LUN is now 150GB, but Linux RHEL 5 doesn't see it. I still the old (original) size of it. Why?

To see the correct disk size, I have to reboot the system. Why? I would like to be able to resize filesystem online without having to reboot.

After rebooting, the size is now fine:
Disk /dev/cciss/c0d3: 157.2 GB

At this time, I'm unable to resize the filesystem. When I try resize2fs I have this message:

# resize2fs /dev/cciss/c0d3p1
resize2fs 1.39 (29-May-2006)
The filesystem is already 25599956 blocks long. Nothing to do!

Even I I try ext2online I have this:

# ext2online /dev/cciss/c0d3p1
ext2online v1.1.18 - 2001/03/18 for EXT2FS 0.5b
ext2online: new size is same as current (25599956)

When I use parted, I can see the free space at the end of the disk:

Model: Compaq Smart Array (cpqarray)
Disk /dev/cciss/c0d3: 157GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File
system
1 16.4kB 105GB 105GB primary ext3
105GB 157GB 52.4GB Free
Space

So my question is simple: is it possible to extend a filesystem in Redhat Enterprise 5 without having to restart the system like major OS are supporting? If yes, could you kindly let me know how?

Best regards,
Yanick Quirion

topic Extending ext3 filesystem RHEL5 in HPE ProLiant Servers (ML,DL,SL)

Extending ext3 filesystem RHEL5