New Years Resolutions

by rus

A lot of people hate the idea of new year resolutions, but if you want to make some changes and the fact it’s the start of a year will give you motivation, then so be it! Lets see how many I keep in 2009!

  • Give up smoking
  • Give up caffeine
  • Stick to diet and gym
  • Less red meat and fatty meats
  • No takeaway pizza, McDonalds or Burger King
  • Attend martial arts classes more regularly
  • Join a yoga/pilates class to improve posture/flexibility
  • Visit another contenant

Last year my resolution was to give up McDonalds, I only wavered once when stranded at Liverpool St. Station!

Resize Xen Filesystem

by rus

We run a lot of Xen instances for our development and test servers and a few were starting to get full. Fortunately the disks in the real servers were very large and the xenlet partitions were made using LVM so resizing them to add more space was possible!

root@dev-myfiles0:~# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/hda1             4.0G  3.8G  200M  95% /

varrun                257M   48K  257M   1% /var/run

varlock               257M     0  257M   0% /var/lock

udev                  257M   40K  257M   1% /dev

devshm                257M     0  257M   0% /dev/shm

Basically we just have to shut down the xenlet, resize the partition and then restart the xenlet again, simple!

root@brandy:~# xm shutdown dev-myfiles0

root@brandy:~# lvextend -L40G /dev/vg0/dev-myfiles0-disk

  Extending logical volume dev-myfiles0-disk to 40.00 GB

  Logical volume dev-myfiles0-disk successfully resized

root@brandy:~# e2fsck -f /dev/vg0/dev-myfiles0-disk

e2fsck 1.40.2 (12-Jul-2007)

Pass 1: Checking inodes, blocks, and sizes

Pass 2: Checking directory structure

Pass 3: Checking directory connectivity

Pass 4: Checking reference counts

Pass 5: Checking group summary information

/dev/vg0/dev-myfiles0-disk: 16541/524288 files (0.9% non-contiguous), 138346/1048576 blocks

root@brandy:~# resize2fs /dev/vg0/dev-myfiles0-disk

resize2fs 1.40.2 (12-Jul-2007)

Resizing the filesystem on /dev/vg0/dev-myfiles0-disk to 10485760 (4k) blocks.

The filesystem on /dev/vg0/dev-myfiles0-disk is now 10485760 blocks long.

root@brandy:~# cd /etc/xen

root@brandy:/etc/xen# xm create dev-myfiles0.cfg

Using config file "./dev-myfiles0.cfg".

Started domain dev-myfiles0

Wee, lots of free space now!

root@dev-myfiles0:~# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/hda1              40G  3.8G   37G  10% /

varrun                257M   40K  257M   1% /var/run

varlock               257M     0  257M   0% /var/lock

udev                  257M   40K  257M   1% /dev

devshm                257M     0  257M   0% /dev/shm