Increasing Space in Software Raid

[culkinj3 at scranton.edu]

Hello

I have a server running RHEL 4 and it has a software Raid (1) of 2 250
gb Sata disks. I want to upgrade this to two 750 gb disks in a Raid 1
configuration. There is not another SATA slot available. 

Here is some more information

# df -ah
/dev/md1              229G  196G   21G  91% /
none                     0     0     0   -  /proc
none                     0     0     0   -  /sys
none                     0     0     0   -  /dev/pts
usbfs                    0     0     0   -  /proc/bus/usb
/dev/md0               99M   11M   83M  12% /boot
none                  505M     0  505M   0% /dev/shm
none                     0     0     0   -  /proc/sys/fs/binfmt_misc
automount(pid2042)       0     0     0   -  /var/autofs/bacula
/dev/sdc1             451G  340G   88G  80% /mnt/usb
#
cat /proc/mdstat
Personalities : [raid1]
md1 : active raid1 sda3[0]
      242983040 blocks [2/1] [U_]

md0 : active raid1 sda1[0]
      104320 blocks [2/1] [U_]

unused devices: <none>


# cat /etc/fstab
/dev/md1                /                       ext3    defaults        1 1
/dev/md0                /boot                   ext3    defaults        1 2
none                    /dev/pts                devpts  gid=5,mode=620  0 0
none                    /dev/shm                tmpfs   defaults        0 0
none                    /proc                   proc    defaults        0 0
none                    /sys                    sysfs   defaults        0 0
LABEL=SWAP-sdb2         swap                    swap    defaults        0 0
LABEL=SWAP-sda2         swap                    swap    defaults        0 0
/dev/sdc1               /mnt/usb                ext3    defaults        0 0


Any suggestions/tips?

-- John C.