Hi
This topic is perhaps not for this list, but it I'm running on a CentOS 4.4 and it seems that a lot of people here uses 3Ware and RAID volumes.
I did a RAID migration on a 3Ware 9590SE-12, so that an exported disk grew from 700GB to 1400GB. The exported disk is managed by LVM. The problem now is that I don't really know what to do now to let LVM and my locigal volume to make use of this new disk size, and probably future disk size growth.
I initially imagined that I could let the physical partition grow and then the LVM PV, the LV and the FS (ext3) to grow to fill up the new exported disk size. Then I realized that this is not how LVM is designed - you add PVs and let the LV and FS to grow.
But, what if the underlying exported disk from a RAID card is growing as you add disks to it's RAID volume? Should you create new physical partitions on the exported disk, and specifically, extended partitions, since you might in the future add more than 4 partitions?
Secondly, it seems there is a problem after this migration: The graphical LVM shows that I have an "Unpartitioned space" on the exported disk, but I can't click on "Initialize entry" button. The property window on the right says: "Not initializable: Partition manually".
parted shows only one partition:
[root@acrux ~]# parted /dev/sdb print Disk geometry for /dev/sdb: 0.000-1430490.000 megabytes Disk label type: msdos Minor Start End Type Filesystem Flags 1 0.000 715245.000 primary lvm
fdisk in expert mode (x) shows that partition 2-4 fields are all zeros.
Should I now make a lvm partition in an extended partition in parted, and then hopefully, the graphical LVM will be able to add the new physical partition to my logical volume, and then resize my fs (ext3)?
Thanks in advance for any input on this, Christian