Coraid documentation

I was able to do quite a bit of technical writing with Coraid. It is useful for those of you using AoE technology. I wrote all of the quickstart documentation here:

http://www.coraid.com/RESOURCES/Quickstart-Documentation

Also, I wrote the driver installation guides here:

http://www.coraid.com/SUPPORT/AoE-Drivers

LVM snapshots

Here is a script to create LVM snapshots in Linux. It is a skeleton only provided for your modification and my reference, but I am using AoE storage as my PV.

#create PV

pvcreate /dev/etherd/e1.0

#create VG

vgcreate cascade /dev/etherd/e1.0

#create LV

lvcreate cascade -n original -L 500G

#make XFS filesystem

mkfs.xfs /dev/cascade/original

#mount (and use) LV

mount /dev/cascade/original /mnt

#freeze filesystem (will hang processes that are using IO on /mnt)

xfs_freeze -f /mnt

#create snapshot of original (works best if it is the same size)

lvcreate -s /dev/cascade/original -n backup -L 500G

#mount snapshot

mount -o nouuid,ro /dev/cascade/backup /mnt2

#backup directory with rsync or backup utility

#unmount LV

umount /mnt2

#remove snapshot

lvremove /dev/cascade/backup

#additional information is found here: http://arstechnica.com/articles/columns/linux/linux-20041013.ars and here: http://tldp.org/HOWTO/LVM-HOWTO/snapshots_backup.html

Coraid blogging

I am now working for Coraid as a systems engineer. I will be blogging professionally at Coraid's blog, and also will be responsible for much of the company's new documentation, which has kept me very busy so far. I will continue to blog here when I find interesting things to blog about.