Hello All,
I 've gotten myself into trouble by running out of disk space.
On an all-in-one Ovirt system some users have filled up a Windows7 virtual machine and in doing so filled up an nfs mount and in doing so
filled up a root partition:
B estandssysteem Grootte Gebruikt Besch Geb% Aangekoppeld op
/dev/mapper/centos-root 50G 46G 4,8G 91% /
devtmpfs 7,9G 0 7,9G 0% /dev
tmpfs 7,9G 0 7,9G 0% /dev/shm
tmpfs 7,9G 8,5M 7,9G 1% /run
tmpfs 7,9G 0 7,9G 0% /sys/fs/cgroup
/dev/md127 498M 106M 393M 22% /boot
/dev/mapper/centos-home 20G 33M 20G 1% /home
/dev/mapper/centos-var 360G 623M 360G 1% /var
hotelcaw:/mnt/iso 50G 46G 4,8G 91% /rhev/data-center/mnt/hotelcaw:_mnt_iso
tmpfs 1,6G 0 1,6G 0% /run/user/0
I tried to remedy that today by using ssm to add storage. I added an extra disk witch shows up as sdc:
[ root@hotelcaw ~]# ssm list
----------------------------------------------------------------
Device Free Used Total Pool Mount point
----------------------------------------------------------------
/dev/md126 208.00 MB 437.84 GB 438.05 GB centos
/dev/sda 465.76 GB PARTITIONED
/dev/sda1 0.00 KB 500.94 MB 501.00 MB md
/dev/sda2 0.00 KB 438.05 GB 438.18 GB md
/dev/sdb 465.76 GB
/dev/sdb1 0.00 KB 500.94 MB 501.00 MB md
/dev/sdb2 0.00 KB 438.05 GB 438.18 GB md
/dev/sdc 465.76 GB
----------------------------------------------------------------
------------------------------------------------------
Pool Type Devices Free Used Total
------------------------------------------------------
centos lvm 1 208.00 MB 437.84 GB 438.05 GB
------------------------------------------------------
-------------------------------------------------------------------------------------
Volume Pool Volume size FS FS size Free Type Mount point
-------------------------------------------------------------------------------------
/dev/centos/swap centos 7.88 GB linear
/dev/centos/root centos 50.00 GB xfs 49.98 GB 4.83 GB linear /
/dev/centos/home centos 20.01 GB xfs 20.00 GB 20.00 GB linear /home
/dev/centos/var centos 359.96 GB xfs 359.79 GB 359.23 GB linear /var
/dev/md126 md 438.05 GB raid1
/dev/md127 md 500.94 MB xfs 497.61 MB 417.29 MB raid1 /boot
/dev/sda1 md 501.00 MB xfs 497.61 MB 417.29 MB part
/dev/sdb1 md 501.00 MB xfs 497.61 MB 417.29 MB
-------------------------------------------------------------------------------------
now adding /dev/sdc to pool centos fails with:
[root@hotelcaw ~]# ssm add -p centos /dev/sdc
Device /dev/sdc not found (or ignored by filtering).
Unable to add physical volume '/dev/sdc' to volume group 'centos'.
SSM Error (2012): ERROR running command: "lvm vgextend centos /dev/sdc"
I did a format 0 on the hard drive that makes up /dev/sdc with:
dd if=/dev/zero of=/dev/sdc bs=8M
I suspect I need to prepare it further before it can be added.
Can anyone advise me on this issue?
Many Thanks
J.
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