Hi,
can use
Grow Grow (or shrink) an array, or otherwise reshape it in some way.
Currently supported growth options including changing the
active size of component devices in RAID level 1/4/5/6
and changing the number of active devices in RAID1.
Try to add two hdd with grow , once if you feel everything ok just
remove the old partition with mdadm.
Or manual method.
create /dev/mdN
with your new two hdd and boot with rescue mode and try something like
tar , dump etc to copy all the data to new raid device.
Change your mounting device in fstab and grub.
Reboot and check.
Thanx
On Jan 30, 2008 8:07 AM, <culkinj3@xxxxxxxxxxxx> wrote:
> 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.
>
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ElectroMech
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