Recovering a Mirrored Devspace
Use
If the
You use this function to recover a damaged mirror devspace. This can be a
To ensure the availability of your system, however, it is advisable to mirror log devspaces only. We recommend RAID 5 configurations to protect your data and system devspaces.
Recovering a damaged log devspace mirror
When you trigger the recovery of a log devspace, it is only reinitialized. In other words, the data is not copied from the intact devspace. Following this, both log devspaces are written to sequentially. The devspace originally marked
BAD must be written to fully before the contents of both devspaces are identical again and both devspaces can be read.The defective devspace remains marked
BAD during the entire reintegration phase.Prerequisites
The database instance is
ONLINE or ADMIN mode.Procedure
Recovering a damaged data devspace mirror
When a damaged data devspace is recovered, the intact data devspace is copied to the repaired data devspace. Following this, both data devspaces operate normally again in mirrored mode.
Prerequisites
The database instance is in
ONLINE mode.Procedure