Why does db2 use lds




















Each partition will reside in a separate data set. Data Set Names catname. Must be unique within part number; A-E used for parts in excess the database. The primary data set allocation is obtained for each new data set. DB2 automatically relocates your data sets during the utility operations that build or rebuild a data set. It is a DASD data and space management tool for moving and copying data. It provides backup, recovery, migration, and space management functions. Even though it is not saved for non SMS managed data sets, the allocation attributes in the Data Class are used to allocate the data set.

They can handle more than one type of data. Separate Storage Groups should be defined for production table spaces, active logs, other production data, and non-production data. Data Set Placement? A Disk is But a Disk? In other words, physical hardware devices with a one- to-one relationship between a disk drive and a volume. The logical view is broken down as: — Track size, or the number of bytes per track.

The RVA dynamically maps functional volumes to physical drives. This mapping structure is contained in a series of tables stored in the RVA control unit. Adds additional functionality for: — Storage Pool Striping - a method of improving performance by allocating capacity to a logical volume such that the capacity is spread over the set of ranks in the logical volume's extent pool. What is RAID?

RAID 1 segments. What About Disk Cache? It was used to connect mainframe computers to peripheral devices such as disk storage and tape drives. What About Extents? This is the default value. Can You Answer These Questions? My Index Keeps Growing… Help! Problem: My index keeps on growing and tripping extents, even after deletes.

What gives? How can I control the extent growth? What About Compression? Our software solutions will help reduce the amount of time, effort, and human error involved in implementing and maintaining a cost-effective mainframe computing environment.

Whether you are a DBA, a capacity manager, a systems programmer, an application developer or a development manager, SoftwareOnZ has a solution for improving your workload and reducing your computing costs. Total views 6, On Slideshare 0.

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For this reason, we do have powers to grant or remove user permissions in order to delete, add or change devices or filters. In the "FQDN" field, the code that will be sent to the database will be "ehe", but if it does not contain these characters, the symbol will continue to "ige".

Skip to content. Star 0. Branches Tags. Could not load branches. Could not load tags. Latest commit. Git stats 24 commits. Failed to load latest commit information. View code. Crate Tables.. In general, the system is for managing devices connected over the network based on their mail addresses The system is managed by many administrators, Administrators are divided into groups of users, each with different powers than the other group.

Encrypt database passwords and ldap.



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