hmhef
January 7th, 2010, 02:24 PM
hi
i want to be able to use all that space that is mirrored in the /home folder
(either raid0, or have 2 partitions)
i understand that /home is mounted on /dev/md2 ( /dev/sda2 + /dev/sdb2)
i have NO physical access to the server, and i plan to do it while logged on as root, so i can unmount the home folder while doing it
my question is
is that possible to do ?
if yes, how ?
running ubuntu 8.04 desktop x86 tls
fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000984bf
Device Boot Start End Blocks Id System
/dev/sda1 * 1 653 5242880 fd Linux RAID autodetect
Partition 1 does not end on cylinder boundary.
/dev/sda2 653 60736 482615296 fd Linux RAID autodetect
/dev/sda3 60736 60801 525856 82 Linux swap / Solaris
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0002c088
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 653 5242880 fd Linux RAID autodetect
Partition 1 does not end on cylinder boundary.
/dev/sdb2 653 60736 482615296 fd Linux RAID autodetect
/dev/sdb3 60736 60801 525856 82 Linux swap / Solaris
Disk /dev/md2: 494.1 GB, 494197997568 bytes
2 heads, 4 sectors/track, 120653808 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md2 doesn't contain a valid partition table
Disk /dev/md1: 5368 MB, 5368643584 bytes
2 heads, 4 sectors/track, 1310704 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn't contain a valid partition table
df -a
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 5201472 3110740 1828592 63% /
/dev/root 5201472 3110740 1828592 63% /
proc 0 0 0 - /proc
sysfs 0 0 0 - /sys
tmpfs 1023116 92 1023024 1% /var/run
tmpfs 1023116 0 1023116 0% /var/lock
/dev/root 5201472 3110740 1828592 63% /dev/.static/dev
udev 1023116 36 1023080 1% /dev
tmpfs 1023116 0 1023116 0% /dev/shm
devpts 0 0 0 - /dev/pts
tmpfs 1023116 92 1023024 1% /var/run
tmpfs 1023116 0 1023116 0% /var/lock
/dev/md2 478812216 8255436 446426020 2% /home
binfmt_misc 0 0 0 - /proc/sys/fs/binfmt_misc
cat /etc/fstab
/dev/md1 / ext3 errors=remount-ro 0 1
/dev/md2 /home ext3 defaults 0 2
/dev/sda3 none swap defaults 0 0
/dev/sdb3 none swap defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0
i want to be able to use all that space that is mirrored in the /home folder
(either raid0, or have 2 partitions)
i understand that /home is mounted on /dev/md2 ( /dev/sda2 + /dev/sdb2)
i have NO physical access to the server, and i plan to do it while logged on as root, so i can unmount the home folder while doing it
my question is
is that possible to do ?
if yes, how ?
running ubuntu 8.04 desktop x86 tls
fdisk -l
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000984bf
Device Boot Start End Blocks Id System
/dev/sda1 * 1 653 5242880 fd Linux RAID autodetect
Partition 1 does not end on cylinder boundary.
/dev/sda2 653 60736 482615296 fd Linux RAID autodetect
/dev/sda3 60736 60801 525856 82 Linux swap / Solaris
Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0002c088
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 653 5242880 fd Linux RAID autodetect
Partition 1 does not end on cylinder boundary.
/dev/sdb2 653 60736 482615296 fd Linux RAID autodetect
/dev/sdb3 60736 60801 525856 82 Linux swap / Solaris
Disk /dev/md2: 494.1 GB, 494197997568 bytes
2 heads, 4 sectors/track, 120653808 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md2 doesn't contain a valid partition table
Disk /dev/md1: 5368 MB, 5368643584 bytes
2 heads, 4 sectors/track, 1310704 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0x00000000
Disk /dev/md1 doesn't contain a valid partition table
df -a
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 5201472 3110740 1828592 63% /
/dev/root 5201472 3110740 1828592 63% /
proc 0 0 0 - /proc
sysfs 0 0 0 - /sys
tmpfs 1023116 92 1023024 1% /var/run
tmpfs 1023116 0 1023116 0% /var/lock
/dev/root 5201472 3110740 1828592 63% /dev/.static/dev
udev 1023116 36 1023080 1% /dev
tmpfs 1023116 0 1023116 0% /dev/shm
devpts 0 0 0 - /dev/pts
tmpfs 1023116 92 1023024 1% /var/run
tmpfs 1023116 0 1023116 0% /var/lock
/dev/md2 478812216 8255436 446426020 2% /home
binfmt_misc 0 0 0 - /proc/sys/fs/binfmt_misc
cat /etc/fstab
/dev/md1 / ext3 errors=remount-ro 0 1
/dev/md2 /home ext3 defaults 0 2
/dev/sda3 none swap defaults 0 0
/dev/sdb3 none swap defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs defaults 0 0