Optimal way for migration from Linux to PC-BSD

[SMA]

Hello all!

Now I use openSUSE 11.3 and he fully satisfy me. But I have problems with drivers for my RAID HBA (drivers did not to be compiled on 2.6.36 or higher kernel) and want to migrate to PC-BSD. Now I testing PC-BSD on my computer and have some problems with disk array.

I use HighPoint RocketRAID 2640X4 HBA for RAID5 disk array. My partitions:

 # parted -l
Model: HPT DISK_8_0 (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number  Start   End     Size    Type      File system     Flags
 1      32.3kB  280MB   280MB   primary   ext3            boot
 2      280MB   1000GB  1000GB  extended                  lba
 5      280MB   17.5GB  17.2GB  logical   linux-swap(v1)
 6      17.5GB  51.8GB  34.4GB  logical   reiserfs
 7      51.8GB  1000GB  948GB   logical   reiserfs



 # cat /etc/fstab
/dev/sda6 /                    reiserfs   acl,user_xattr        1 1
/dev/sda1 /boot                ext3       data=journal,acl,user_xattr 1 2
/dev/sda5 swap                 swap       defaults              0 0
/dev/sda7 /home                reiserfs   acl,user_xattr   1 2

proc                 /proc                proc       defaults              0 0
sysfs                /sys                 sysfs      noauto                0 0
debugfs              /sys/kernel/debug    debugfs    noauto                0 0
usbfs                /proc/bus/usb        usbfs      noauto                0 0
devpts               /dev/pts             devpts     mode=0620,gid=5       0 0

I need to install PC-BSD but in /home partition (sda7, reiserFS) I have ~630 GiB of UNBACKUPPED data and I not have purposes to backup it. I convert /home partition (sda7, reiserFS) from ext4 to ReiserFS 2 years ago using Gparted by <shrink-grow-copy> loop algorithm (1 week of CPU time need) 2 years ago and I may to repeat this again. But I can not find methods for resizing UFS or ZFS partitions...

Objective:

1. What filesystem is faster: UFS or ZFS?
2. What filesystem is highly supported in PC-BSD 9 (rw support): ext2; ext3; ext4; jfs; xfs
3. Why is optimal way to install PC-BSD on my array and mount existing /home partition (sda7, reiserFS) to PC-BSD?

PS: I am sorry for my little english...