Hi all,

I have two 500 GB hard drives that are configured in a raid 1 array.
They are partitioned into two: a 2gb swap partition and a 498gb
partition (mounted as /).

My problem is as follows:

When I do df -h I get the following:
Filesystem Size Used Avail Use% Mounted on
/dev/md0 19G 9.8G 7.8G 56% /
varrun 1013M 128K 1013M 1% /var/run
varlock 1013M 0 1013M 0% /var/lock
udev 1013M 80K 1013M 1% /dev
devshm 1013M 0 1013M 0% /dev/shm
lrm 1013M 34M 979M 4% /lib/modules/2.6.22-14-
generic/volatile

md0 should be 498gb, not 20!!

I tried using fdisk (but I don't really know how to use it that well)
And I print the following:

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 60557 486424071 fd Linux raid
autodetect
/dev/sdb2 60558 60801 1959930 fd Linux raid
autodetect

Device Boot Start End Blocks Id System
/dev/sda1 * 1 60557 486424071 fd Linux raid
autodetect
/dev/sda2 60558 60801 1959930 fd Linux raid
autodetect

Further information:

$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
# /dev/md0
UUID=3130e988-88a8-4e87-8b85-7a267904a370 / ext3
defaults,errors=remount-ro 0 1
# /dev/md1
UUID=8e35bf5c-6501-49fa-960e-ac3f589ffa1b none swap
sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec 0 0

$ swapon -s
Filename Type Size
Used Priority
/dev/md1 partition 1959800
34756 -1

$ free
total used free shared buffers
cached
Mem: 2074372 1124088 950284 0 80548
909980
-/+ buffers/cache: 133560 1940812
Swap: 1959800 34756 1925044

$ lsmod
Module Size Used by
af_packet 24840 2
vmnet 39092 13
vmmon 1825708 8
rfcomm 42136 2
l2cap 26240 11 rfcomm
bluetooth 57060 4 rfcomm,l2cap
ppdev 10244 0
ipv6 273892 14
acpi_cpufreq 10568 1
cpufreq_stats 7232 0
cpufreq_ondemand 9612 1
cpufreq_conservative 8072 0
freq_table 5792 3
acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
cpufreq_userspace 5280 0
cpufreq_powersave 2688 0
sbs 19592 0
video 18060 0
ac 6148 0
button 8976 0
container 5504 0
dock 10656 0
battery 11012 0
lp 12580 0
loop 19076 0
psmouse 39952 0
parport_pc 37412 1
parport 37448 3 ppdev,lp,parport_pc
pcspkr 4224 0
shpchp 34580 0
pci_hotplug 32704 1 shpchp
evdev 11136 2
ext3 133896 1
jbd 60456 1 ext3
mbcache 9732 1 ext3
sg 36764 0
sr_mod 17828 1
cdrom 37536 1 sr_mod
sd_mod 30336 6
usbhid 29536 0
hid 28928 1 usbhid
ata_generic 8452 0
floppy 60004 0
ahci 23300 4
pata_it8213 9348 1
e1000 126272 0
libata 125168 3 ata_generic,ahci,pata_it8213
scsi_mod 147084 4 sg,sr_mod,sd_mod,libata
ehci_hcd 36492 0
uhci_hcd 26640 0
usbcore 138632 4 usbhid,ehci_hcd,uhci_hcd
raid10 26496 0
raid456 128016 0
xor 16904 1 raid456
raid1 25984 2
raid0 9728 0
multipath 9984 0
linear 7552 0
md_mod 82324 9
raid10,raid456,raid1,raid0,multipath,linear
thermal 14344 0
processor 32072 2 acpi_cpufreq,thermal
fan 5764 0
fuse 47124 1
apparmor 40728 0
commoncap 8320 1 apparmor

$ du -h --max-depth=1 /
156M /lib
4.0K /srv
4.0K /opt
236K /dev
4.7M /bin
12K /media
0 /sys
40K /root
4.0K /initrd
0 /proc
7.9M /home
9.5M /etc
322M /var
2.1G /usr
18M /boot
16K /lost+found
6.4M /sbin
20K /tmp
4.0K /mnt
2.6G /

$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
[raid4] [raid10]
md1 : active raid1 sda2[0] sdb2[1]
1959808 blocks [2/2] [UU]

md0 : active raid1 sda1[0] sdb1[1]
486424000 blocks [2/2] [UU]

unused devices: <none>

Very strange is the following:

# mount /dev/md0
mount: /dev/md0 already mounted or / busy
mount: according to mtab, /dev/md0 is already mounted on /

# mount /dev/md1
mount: mount point none does not exist
(must be swap?)

# fdisk /dev/md1
p

Warning: invalid flag 0x0000 of partition table 4 will be corrected by
w(rite)

Command (m for help): p

Disk /dev/md1: 2006 MB, 2006843392 bytes
2 heads, 4 sectors/track, 489952 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0xd436a49e

Device Boot Start End Blocks Id System

# fdisk /dev/md0
p
Warning: invalid flag 0x0000 of partition table 4 will be corrected by
w(rite)

Command (m for help): p

Disk /dev/md0: 498.0 GB, 498098176000 bytes
2 heads, 4 sectors/track, 121606000 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
Disk identifier: 0xfe9d38d6

Device Boot Start End Blocks Id System

So, according to this, / should be 498 GB..
But it's only 20..

Any ideas?

On Apr 15, 3:46 pm, Diego <ivans.addr...******.com> wrote:
> Hi all,
>
> I have two 500 GB hard drives that are configured in a raid 1 array.
> They are partitioned into two: a 2gb swap partition and a 498gb
> partition (mounted as /).
>
> My problem is as follows:
>
> When I do df -h I get the following:
> Filesystem Size Used Avail Use% Mounted on
> /dev/md0 19G 9.8G 7.8G 56% /
> varrun 1013M 128K 1013M 1% /var/run
> varlock 1013M 0 1013M 0% /var/lock
> udev 1013M 80K 1013M 1% /dev
> devshm 1013M 0 1013M 0% /dev/shm
> lrm 1013M 34M 979M 4% /lib/modules/2.6.22-14-
> generic/volatile
>
> md0 should be 498gb, not 20!!
>
> I tried using fdisk (but I don't really know how to use it that well)
> And I print the following:
>
> Device Boot Start End Blocks Id System
> /dev/sdb1 * 1 60557 486424071 fd Linux raid
> autodetect
> /dev/sdb2 60558 60801 1959930 fd Linux raid
> autodetect
>
> Device Boot Start End Blocks Id System
> /dev/sda1 * 1 60557 486424071 fd Linux raid
> autodetect
> /dev/sda2 60558 60801 1959930 fd Linux raid
> autodetect
>
> Further information:
>
> $ cat /etc/fstab
> # /etc/fstab: static file system information.
> #
> # <file system> <mount point> <type> <options> <dump> <pass>
> proc /proc proc defaults 0 0
> # /dev/md0
> UUID=3130e988-88a8-4e87-8b85-7a267904a370 / ext3
> defaults,errors=remount-ro 0 1
> # /dev/md1
> UUID=8e35bf5c-6501-49fa-960e-ac3f589ffa1b none swap
> sw 0 0
> /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0
> /dev/fd0 /media/floppy0 auto rw,user,noauto,exec 0 0
>
> $ swapon -s
> Filename Type Size
> Used Priority
> /dev/md1 partition 1959800
> 34756 -1
>
> $ free
> total used free shared buffers
> cached
> Mem: 2074372 1124088 950284 0 80548
> 909980
> -/+ buffers/cache: 133560 1940812
> Swap: 1959800 34756 1925044
>
> $ lsmod
> Module Size Used by
> af_packet 24840 2
> vmnet 39092 13
> vmmon 1825708 8
> rfcomm 42136 2
> l2cap 26240 11 rfcomm
> bluetooth 57060 4 rfcomm,l2cap
> ppdev 10244 0
> ipv6 273892 14
> acpi_cpufreq 10568 1
> cpufreq_stats 7232 0
> cpufreq_ondemand 9612 1
> cpufreq_conservative 8072 0
> freq_table 5792 3
> acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
> cpufreq_userspace 5280 0
> cpufreq_powersave 2688 0
> sbs 19592 0
> video 18060 0
> ac 6148 0
> button 8976 0
> container 5504 0
> dock 10656 0
> battery 11012 0
> lp 12580 0
> loop 19076 0
> psmouse 39952 0
> parport_pc 37412 1
> parport 37448 3 ppdev,lp,parport_pc
> pcspkr 4224 0
> shpchp 34580 0
> pci_hotplug 32704 1 shpchp
> evdev 11136 2
> ext3 133896 1
> jbd 60456 1 ext3
> mbcache 9732 1 ext3
> sg 36764 0
> sr_mod 17828 1
> cdrom 37536 1 sr_mod
> sd_mod 30336 6
> usbhid 29536 0
> hid 28928 1 usbhid
> ata_generic 8452 0
> floppy 60004 0
> ahci 23300 4
> pata_it8213 9348 1
> e1000 126272 0
> libata 125168 3 ata_generic,ahci,pata_it8213
> scsi_mod 147084 4 sg,sr_mod,sd_mod,libata
> ehci_hcd 36492 0
> uhci_hcd 26640 0
> usbcore 138632 4 usbhid,ehci_hcd,uhci_hcd
> raid10 26496 0
> raid456 128016 0
> xor 16904 1 raid456
> raid1 25984 2
> raid0 9728 0
> multipath 9984 0
> linear 7552 0
> md_mod 82324 9
> raid10,raid456,raid1,raid0,multipath,linear
> thermal 14344 0
> processor 32072 2 acpi_cpufreq,thermal
> fan 5764 0
> fuse 47124 1
> apparmor 40728 0
> commoncap 8320 1 apparmor
>
> $ du -h --max-depth=1 /
> 156M /lib
> 4.0K /srv
> 4.0K /opt
> 236K /dev
> 4.7M /bin
> 12K /media
> 0 /sys
> 40K /root
> 4.0K /initrd
> 0 /proc
> 7.9M /home
> 9.5M /etc
> 322M /var
> 2.1G /usr
> 18M /boot
> 16K /lost+found
> 6.4M /sbin
> 20K /tmp
> 4.0K /mnt
> 2.6G /
>
> $ cat /proc/mdstat
> Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
> [raid4] [raid10]
> md1 : active raid1 sda2[0] sdb2[1]
> 1959808 blocks [2/2] [UU]
>
> md0 : active raid1 sda1[0] sdb1[1]
> 486424000 blocks [2/2] [UU]
>
> unused devices: <none>
>
> Very strange is the following:
>
> # mount /dev/md0
> mount: /dev/md0 already mounted or / busy
> mount: according to mtab, /dev/md0 is already mounted on /
>
> # mount /dev/md1
> mount: mount point none does not exist
> (must be swap?)
>
> # fdisk /dev/md1
> p
>
> Warning: invalid flag 0x0000 of partition table 4 will be corrected by
> w(rite)
>
> Command (m for help): p
>
> Disk /dev/md1: 2006 MB, 2006843392 bytes
> 2 heads, 4 sectors/track, 489952 cylinders
> Units = cylinders of 8 * 512 = 4096 bytes
> Disk identifier: 0xd436a49e
>
> Device Boot Start End Blocks Id System
>
> # fdisk /dev/md0
> p
> Warning: invalid flag 0x0000 of partition table 4 will be corrected by
> w(rite)
>
> Command (m for help): p
>
> Disk /dev/md0: 498.0 GB, 498098176000 bytes
> 2 heads, 4 sectors/track, 121606000 cylinders
> Units = cylinders of 8 * 512 = 4096 bytes
> Disk identifier: 0xfe9d38d6
>
> Device Boot Start End Blocks Id System
>
> So, according to this, / should be 498 GB..
> But it's only 20..
>
> Any ideas?

Fixed the issue --


# resize2fs -f /dev/md0 400000M

Diego wrote:
> On Apr 15, 3:46 pm, Diego <ivans.addr...******.com> wrote:
>> Hi all,
>>
>> I have two 500 GB hard drives that are configured in a raid 1 array.
>> They are partitioned into two: a 2gb swap partition and a 498gb
>> partition (mounted as /).
>>
>> My problem is as follows:
>>
>> When I do df -h I get the following:
>> Filesystem Size Used Avail Use% Mounted on
>> /dev/md0 19G 9.8G 7.8G 56% /
>> varrun 1013M 128K 1013M 1% /var/run
>> varlock 1013M 0 1013M 0% /var/lock
>> udev 1013M 80K 1013M 1% /dev
>> devshm 1013M 0 1013M 0% /dev/shm
>> lrm 1013M 34M 979M 4% /lib/modules/2.6.22-14-
>> generic/volatile
>>
>> md0 should be 498gb, not 20!!
>>
>> I tried using fdisk (but I don't really know how to use it that well)
>> And I print the following:
>>
>> Device Boot Start End Blocks Id System
>> /dev/sdb1 * 1 60557 486424071 fd Linux raid
>> autodetect
>> /dev/sdb2 60558 60801 1959930 fd Linux raid
>> autodetect
>>
>> Device Boot Start End Blocks Id System
>> /dev/sda1 * 1 60557 486424071 fd Linux raid
>> autodetect
>> /dev/sda2 60558 60801 1959930 fd Linux raid
>> autodetect
>>
>> Further information:
>>
>> $ cat /etc/fstab
>> # /etc/fstab: static file system information.
>> #
>> # <file system> <mount point> <type> <options> <dump> <pass>
>> proc /proc proc defaults 0 0
>> # /dev/md0
>> UUID=3130e988-88a8-4e87-8b85-7a267904a370 / ext3
>> defaults,errors=remount-ro 0 1
>> # /dev/md1
>> UUID=8e35bf5c-6501-49fa-960e-ac3f589ffa1b none swap
>> sw 0 0
>> /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0
>> /dev/fd0 /media/floppy0 auto rw,user,noauto,exec 0 0
>>
>> $ swapon -s
>> Filename Type Size
>> Used Priority
>> /dev/md1 partition 1959800
>> 34756 -1
>>
>> $ free
>> total used free shared buffers
>> cached
>> Mem: 2074372 1124088 950284 0 80548
>> 909980
>> -/+ buffers/cache: 133560 1940812
>> Swap: 1959800 34756 1925044
>>
>> $ lsmod
>> Module Size Used by
>> af_packet 24840 2
>> vmnet 39092 13
>> vmmon 1825708 8
>> rfcomm 42136 2
>> l2cap 26240 11 rfcomm
>> bluetooth 57060 4 rfcomm,l2cap
>> ppdev 10244 0
>> ipv6 273892 14
>> acpi_cpufreq 10568 1
>> cpufreq_stats 7232 0
>> cpufreq_ondemand 9612 1
>> cpufreq_conservative 8072 0
>> freq_table 5792 3
>> acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
>> cpufreq_userspace 5280 0
>> cpufreq_powersave 2688 0
>> sbs 19592 0
>> video 18060 0
>> ac 6148 0
>> button 8976 0
>> container 5504 0
>> dock 10656 0
>> battery 11012 0
>> lp 12580 0
>> loop 19076 0
>> psmouse 39952 0
>> parport_pc 37412 1
>> parport 37448 3 ppdev,lp,parport_pc
>> pcspkr 4224 0
>> shpchp 34580 0
>> pci_hotplug 32704 1 shpchp
>> evdev 11136 2
>> ext3 133896 1
>> jbd 60456 1 ext3
>> mbcache 9732 1 ext3
>> sg 36764 0
>> sr_mod 17828 1
>> cdrom 37536 1 sr_mod
>> sd_mod 30336 6
>> usbhid 29536 0
>> hid 28928 1 usbhid
>> ata_generic 8452 0
>> floppy 60004 0
>> ahci 23300 4
>> pata_it8213 9348 1
>> e1000 126272 0
>> libata 125168 3 ata_generic,ahci,pata_it8213
>> scsi_mod 147084 4 sg,sr_mod,sd_mod,libata
>> ehci_hcd 36492 0
>> uhci_hcd 26640 0
>> usbcore 138632 4 usbhid,ehci_hcd,uhci_hcd
>> raid10 26496 0
>> raid456 128016 0
>> xor 16904 1 raid456
>> raid1 25984 2
>> raid0 9728 0
>> multipath 9984 0
>> linear 7552 0
>> md_mod 82324 9
>> raid10,raid456,raid1,raid0,multipath,linear
>> thermal 14344 0
>> processor 32072 2 acpi_cpufreq,thermal
>> fan 5764 0
>> fuse 47124 1
>> apparmor 40728 0
>> commoncap 8320 1 apparmor
>>
>> $ du -h --max-depth=1 /
>> 156M /lib
>> 4.0K /srv
>> 4.0K /opt
>> 236K /dev
>> 4.7M /bin
>> 12K /media
>> 0 /sys
>> 40K /root
>> 4.0K /initrd
>> 0 /proc
>> 7.9M /home
>> 9.5M /etc
>> 322M /var
>> 2.1G /usr
>> 18M /boot
>> 16K /lost+found
>> 6.4M /sbin
>> 20K /tmp
>> 4.0K /mnt
>> 2.6G /
>>
>> $ cat /proc/mdstat
>> Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
>> [raid4] [raid10]
>> md1 : active raid1 sda2[0] sdb2[1]
>> 1959808 blocks [2/2] [UU]
>>
>> md0 : active raid1 sda1[0] sdb1[1]
>> 486424000 blocks [2/2] [UU]
>>
>> unused devices: <none>
>>
>> Very strange is the following:
>>
>> # mount /dev/md0
>> mount: /dev/md0 already mounted or / busy
>> mount: according to mtab, /dev/md0 is already mounted on /
>>
>> # mount /dev/md1
>> mount: mount point none does not exist
>> (must be swap?)
>>
>> # fdisk /dev/md1
>> p
>>
>> Warning: invalid flag 0x0000 of partition table 4 will be corrected by
>> w(rite)
>>
>> Command (m for help): p
>>
>> Disk /dev/md1: 2006 MB, 2006843392 bytes
>> 2 heads, 4 sectors/track, 489952 cylinders
>> Units = cylinders of 8 * 512 = 4096 bytes
>> Disk identifier: 0xd436a49e
>>
>> Device Boot Start End Blocks Id System
>>
>> # fdisk /dev/md0
>> p
>> Warning: invalid flag 0x0000 of partition table 4 will be corrected by
>> w(rite)
>>
>> Command (m for help): p
>>
>> Disk /dev/md0: 498.0 GB, 498098176000 bytes
>> 2 heads, 4 sectors/track, 121606000 cylinders
>> Units = cylinders of 8 * 512 = 4096 bytes
>> Disk identifier: 0xfe9d38d6
>>
>> Device Boot Start End Blocks Id System
>>
>> So, according to this, / should be 498 GB..
>> But it's only 20..
>>
>> Any ideas?
>
> Fixed the issue --
>
>
> # resize2fs -f /dev/md0 400000M
did you migrated an old system to a new raid system or did you
installed a new system on a new software raid ?

if it's the first
do you have some good info for that ?

On Apr 18, 6:00 am, "goarilla <\"kevin<punt>paulus|\"@|skynet" <"punt>
wrote:
> Diego wrote:
> > On Apr 15, 3:46 pm, Diego <ivans.addr...******.com> wrote:
> >> Hi all,
>
> >> I have two 500 GB hard drives that are configured in a raid 1 array.
> >> They are partitioned into two: a 2gb swap partition and a 498gb
> >> partition (mounted as /).
>
> >> My problem is as follows:
>
> >> When I do df -h I get the following:
> >> Filesystem Size Used Avail Use% Mounted on
> >> /dev/md0 19G 9.8G 7.8G 56% /
> >> varrun 1013M 128K 1013M 1% /var/run
> >> varlock 1013M 0 1013M 0% /var/lock
> >> udev 1013M 80K 1013M 1% /dev
> >> devshm 1013M 0 1013M 0% /dev/shm
> >> lrm 1013M 34M 979M 4% /lib/modules/2.6.22-14-
> >> generic/volatile
>
> >> md0 should be 498gb, not 20!!
>
> >> I tried using fdisk (but I don't really know how to use it that well)
> >> And I print the following:
>
> >> Device Boot Start End Blocks Id System
> >> /dev/sdb1 * 1 60557 486424071 fd Linux raid
> >> autodetect
> >> /dev/sdb2 60558 60801 1959930 fd Linux raid
> >> autodetect
>
> >> Device Boot Start End Blocks Id System
> >> /dev/sda1 * 1 60557 486424071 fd Linux raid
> >> autodetect
> >> /dev/sda2 60558 60801 1959930 fd Linux raid
> >> autodetect
>
> >> Further information:
>
> >> $ cat /etc/fstab
> >> # /etc/fstab: static file system information.
> >> #
> >> # <file system> <mount point> <type> <options> <dump> <pass>
> >> proc /proc proc defaults 0 0
> >> # /dev/md0
> >> UUID=3130e988-88a8-4e87-8b85-7a267904a370 / ext3
> >> defaults,errors=remount-ro 0 1
> >> # /dev/md1
> >> UUID=8e35bf5c-6501-49fa-960e-ac3f589ffa1b none swap
> >> sw 0 0
> >> /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec 0 0
> >> /dev/fd0 /media/floppy0 auto rw,user,noauto,exec 0 0
>
> >> $ swapon -s
> >> Filename Type Size
> >> Used Priority
> >> /dev/md1 partition 1959800
> >> 34756 -1
>
> >> $ free
> >> total used free shared buffers
> >> cached
> >> Mem: 2074372 1124088 950284 0 80548
> >> 909980
> >> -/+ buffers/cache: 133560 1940812
> >> Swap: 1959800 34756 1925044
>
> >> $ lsmod
> >> Module Size Used by
> >> af_packet 24840 2
> >> vmnet 39092 13
> >> vmmon 1825708 8
> >> rfcomm 42136 2
> >> l2cap 26240 11 rfcomm
> >> bluetooth 57060 4 rfcomm,l2cap
> >> ppdev 10244 0
> >> ipv6 273892 14
> >> acpi_cpufreq 10568 1
> >> cpufreq_stats 7232 0
> >> cpufreq_ondemand 9612 1
> >> cpufreq_conservative 8072 0
> >> freq_table 5792 3
> >> acpi_cpufreq,cpufreq_stats,cpufreq_ondemand
> >> cpufreq_userspace 5280 0
> >> cpufreq_powersave 2688 0
> >> sbs 19592 0
> >> video 18060 0
> >> ac 6148 0
> >> button 8976 0
> >> container 5504 0
> >> dock 10656 0
> >> battery 11012 0
> >> lp 12580 0
> >> loop 19076 0
> >> psmouse 39952 0
> >> parport_pc 37412 1
> >> parport 37448 3 ppdev,lp,parport_pc
> >> pcspkr 4224 0
> >> shpchp 34580 0
> >> pci_hotplug 32704 1 shpchp
> >> evdev 11136 2
> >> ext3 133896 1
> >> jbd 60456 1 ext3
> >> mbcache 9732 1 ext3
> >> sg 36764 0
> >> sr_mod 17828 1
> >> cdrom 37536 1 sr_mod
> >> sd_mod 30336 6
> >> usbhid 29536 0
> >> hid 28928 1 usbhid
> >> ata_generic 8452 0
> >> floppy 60004 0
> >> ahci 23300 4
> >> pata_it8213 9348 1
> >> e1000 126272 0
> >> libata 125168 3 ata_generic,ahci,pata_it8213
> >> scsi_mod 147084 4 sg,sr_mod,sd_mod,libata
> >> ehci_hcd 36492 0
> >> uhci_hcd 26640 0
> >> usbcore 138632 4 usbhid,ehci_hcd,uhci_hcd
> >> raid10 26496 0
> >> raid456 128016 0
> >> xor 16904 1 raid456
> >> raid1 25984 2
> >> raid0 9728 0
> >> multipath 9984 0
> >> linear 7552 0
> >> md_mod 82324 9
> >> raid10,raid456,raid1,raid0,multipath,linear
> >> thermal 14344 0
> >> processor 32072 2 acpi_cpufreq,thermal
> >> fan 5764 0
> >> fuse 47124 1
> >> apparmor 40728 0
> >> commoncap 8320 1 apparmor
>
> >> $ du -h --max-depth=1 /
> >> 156M /lib
> >> 4.0K /srv
> >> 4.0K /opt
> >> 236K /dev
> >> 4.7M /bin
> >> 12K /media
> >> 0 /sys
> >> 40K /root
> >> 4.0K /initrd
> >> 0 /proc
> >> 7.9M /home
> >> 9.5M /etc
> >> 322M /var
> >> 2.1G /usr
> >> 18M /boot
> >> 16K /lost+found
> >> 6.4M /sbin
> >> 20K /tmp
> >> 4.0K /mnt
> >> 2.6G /
>
> >> $ cat /proc/mdstat
> >> Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
> >> [raid4] [raid10]
> >> md1 : active raid1 sda2[0] sdb2[1]
> >> 1959808 blocks [2/2] [UU]
>
> >> md0 : active raid1 sda1[0] sdb1[1]
> >> 486424000 blocks [2/2] [UU]
>
> >> unused devices: <none>
>
> >> Very strange is the following:
>
> >> # mount /dev/md0
> >> mount: /dev/md0 already mounted or / busy
> >> mount: according to mtab, /dev/md0 is already mounted on /
>
> >> # mount /dev/md1
> >> mount: mount point none does not exist
> >> (must be swap?)
>
> >> # fdisk /dev/md1
> >> p
>
> >> Warning: invalid flag 0x0000 of partition table 4 will be corrected by
> >> w(rite)
>
> >> Command (m for help): p
>
> >> Disk /dev/md1: 2006 MB, 2006843392 bytes
> >> 2 heads, 4 sectors/track, 489952 cylinders
> >> Units = cylinders of 8 * 512 = 4096 bytes
> >> Disk identifier: 0xd436a49e
>
> >> Device Boot Start End Blocks Id System
>
> >> # fdisk /dev/md0
> >> p
> >> Warning: invalid flag 0x0000 of partition table 4 will be corrected by
> >> w(rite)
>
> >> Command (m for help): p
>
> >> Disk /dev/md0: 498.0 GB, 498098176000 bytes
> >> 2 heads, 4 sectors/track, 121606000 cylinders
> >> Units = cylinders of 8 * 512 = 4096 bytes
> >> Disk identifier: 0xfe9d38d6
>
> >> Device Boot Start End Blocks Id System
>
> >> So, according to this, / should be 498 GB..
> >> But it's only 20..
>
> >> Any ideas?
>
> > Fixed the issue --
>
> > # resize2fs -f /dev/md0 400000M
>
> did you migrated an old system to a new raid system or did you
> installed a new system on a new software raid ?
>
> if it's the first
> do you have some good info for that ?

Hi there..

It was a combination of the two..
I built an entyrely new system and copied the old VMs across..