Specifications
Replicate New File System
type. There are several different DataKeeper resource types. The following information can help you
determine which type is best for your environment.
Replicate New File System
Choosing aNew Replicated File Systemwill create/extend the NetRAID device, mount the given
mount point on the NetRAID device and put both the LifeKeeper supported file system and the
NetRAID device under LifeKeeper protection. The local disk or partition will be formatted.
CAUTION: All data will be deleted.
Replicate Existing File System
Choosing Replicate Existing File System will use a currently mounted disk or partition and create a
NetRAID device without deleting the data on the disk or partition. SteelEye DataKeeper will unmount
the local disk or partition, create the NetRAID device using the local disk or partition and mount the
mount point on the NetRAID device. It will then put both the NetRAID device and the LifeKeeper
supported file system under LifeKeeper protection.
Important: If you are creating SteelEye Protection Suite for Linux Multi-Site Cluster hierarchies, your
application will be stopped during the create process. You will need to restart your application once
you have finished creating and extending your hierarchies.
DataKeeper Resource
Choosing a DataKeeper Resource will create/extend the NetRAID device and put it under LifeKeeper
protection without a file system. You might choose this replication type if using a database that can
use a raw I/O device.
In order to allow the user continued data access, SteelEye DataKeeper will not attempt to unmount
and delete a NetRAID device if it is currently mounted. The user must manually unmount it before
attempting a manual switchover and mount it on the other server after the manual switchover.
Note: After the DataKeeper resource has been created, should you decide to protect a manually
mounted file system with LifeKeeper, you can do so as follows:
1. Format the NetRAID device with a LifeKeeper supported file system.
2. Mount the NetRAID device.
3. Create and extend a file system hierarchy using the NetRAID device as if it were a shared
storage disk or partition.
LifeKeeper’s file system recovery kit will now be responsible for mounting/unmounting it during
failover.
SteelEye Protection Suite for Linux283