19.06.2013 Views

DB2 UDB for z/OS Version 8 Performance Topics - IBM Redbooks

DB2 UDB for z/OS Version 8 Performance Topics - IBM Redbooks

DB2 UDB for z/OS Version 8 Performance Topics - IBM Redbooks

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

In <strong>DB2</strong>, the <strong>IBM</strong> Data Encryption tool implements encryption through the standard<br />

EDITPROC exit.<br />

Data Encryption <strong>for</strong> IMS and <strong>DB2</strong> Databases V1.1 supports and exploits <strong>DB2</strong> V8.<br />

For per<strong>for</strong>mance data see 4.7.1, “Per<strong>for</strong>mance” on page 184.<br />

For more in<strong>for</strong>mation about this <strong>DB2</strong> tool, see<br />

http://www.ibm.com/software/data/db2imstools/<br />

10.9 <strong>DB2</strong> Data Archive Expert<br />

One of the pressing concerns <strong>for</strong> In<strong>for</strong>mation Technology is the increasing volumes of data;<br />

databases are growing at an exponential rate and many organizations are alarmed at the<br />

volume of data they need to keep on hand. Inactive data exists everywhere; data warehouses<br />

grow every day. Inactive data is not unusable; it just has a lower probability of access.<br />

Organizations may have governmental requirements to keep certain data and there may be<br />

be a valid business need.<br />

As databases grow in size, the percentage of inactive data also grows. Inactive data costs are<br />

high and many organizations are examining ways to archive dormant data to keep operational<br />

costs down. The Data Archive Expert tool can help you manage your archived data so that it<br />

can be quickly accessed whenever necessary.<br />

For more in<strong>for</strong>mation about this <strong>DB2</strong> tool, see<br />

http://www.ibm.com/software/data/db2imstools/<br />

The <strong>DB2</strong> Data Archive Expert <strong>for</strong> z/<strong>OS</strong> V1.1 supports and exploits <strong>DB2</strong> V8.<br />

10.10 <strong>DB2</strong> Bind Manager<br />

It might be important to know if you per<strong>for</strong>m a rebind: Will the access path change? Does a<br />

plan or package need a rebind? Can we bypass a rebind because the application logic<br />

changed but not the SQL? Often, with a new release of <strong>DB2</strong>, there are changes in the access<br />

path, but it would be advantageous to know ahead of time the effect of a rebind on the access<br />

path selection by <strong>DB2</strong>. The bind process uses CPU resources and <strong>DB2</strong> must quiesce access<br />

to the plan or package. If the bind is unnecessary, you can save much in resource<br />

consumption by avoiding a bind.<br />

As the name implies, the <strong>DB2</strong> Bind Manager tool manages binds in the <strong>DB2</strong> environment and<br />

can help with all of the issues mentioned above.<br />

For more in<strong>for</strong>mation about this <strong>DB2</strong> tool, see<br />

http://www.ibm.com/software/data/db2imstools/<br />

The <strong>DB2</strong> Bind Manager Tool V2.2 supports and exploits <strong>DB2</strong> V8.<br />

10.11 <strong>DB2</strong> High Per<strong>for</strong>mance Unload<br />

The <strong>DB2</strong> High Per<strong>for</strong>mance Unload (HPU) is a tool that allows you to unload data from your<br />

<strong>DB2</strong> tables outside of <strong>DB2</strong>. The UNLOAD utility is provided with the <strong>DB2</strong> Utilities Suite V7<br />

370 <strong>DB2</strong> <strong>UDB</strong> <strong>for</strong> z/<strong>OS</strong> <strong>Version</strong> 8 Per<strong>for</strong>mance <strong>Topics</strong>

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!