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AdministeringIn addition to administering the database server, you can tune performance, replicate data, and archive data.
System administrationThese topics contain concepts, procedures, and reference information for database and database server administrators to use for managing and tuning HCL OneDB™ database servers.
Administrator's GuideThe HCL OneDB™ Administrator's Guide provides the information required to administer HCL OneDB™.
Disk, memory, and process management
Manage disk spaceYou can use several utilities and tools to manage disk spaces and the data that the database server controls.
Monitor disk usage
Monitor chunks
Monitor chunk I/O activity with the onstat -g iof commandUse the onstat -g iof command to monitor chunk I/O activity, including the distribution of I/O requests against the different fragments of a fragmented table.

Monitor chunk I/O activity with the onstat -g iof command

Use the onstat -g iof command to monitor chunk I/O activity, including the distribution of I/O requests against the different fragments of a fragmented table.

The onstat -g iof command displays:

The number of reads from each chunk and the number of writes to each chunk
I/0 by service level, broken down by individual operation
The type of operation
The number of times the operation occurred
The average time the operation took to complete

If one chunk has a disproportionate amount of I/O activity against it, this chunk might be a system bottleneck.

For an example of onstat -g iof output, see information about the onstat utility in the HCL OneDB™ Administrator's Reference.

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