You may want to add storage space to the HADB in the following circumstances:
4592: No free blocks on data devices
4593: No unreserved blocks on data devices
hadbm deviceinfo
command reports insufficient free size. See "Getting Device Information".
You can increase the device size in MB using either of the following hadbm set
commands:
hadbm set DataDeviceSize=size
hadbm set TotalDatadeviceSizePerNode=size
For example:
hadbm set DataDeviceSize=1024
The TotalDatadeviceSizePerNode
is equal to the DataDeviceSize
multiplied by the NumberOfDatadevices
. Therefore, TotalDatadeviceSizePerNode
and DataDeviceSize
are mutually dependent: changing one changes the other.
The DataDeviceSize
should be as large as possible. The recommended size is four times the expected size of the user data, based on the number of users and the size of each user record.
Changing the DataDeviceSize
or TotalDatadeviceSizePerNode
on a database in a FaultTolerant or higher state means that the system is upgraded without loss of data, and the database remains in an Operational state during the reconfiguration. If you change device size on a system that is not FaultTolerant or better, data is lost. For more information about database states, see "Database Status".