Solved

dd command

Posted on 2011-03-08
3
765 Views
Last Modified: 2012-06-21
Ran a dd command to create a 10GB file on both Linux and AIX.
When issued top on Linux, saw only one process being used while on AIX in the ou
tput of topas, it was showing 2 lines for dd.
Does 2 lines in AIX's topas mean, AIX parallelizing the dd command operation?
0
Comment
Question by:ReliableDBA
3 Comments
 
LVL 3

Assisted Solution

by:CarlsbergFTW
CarlsbergFTW earned 50 total points
ID: 35080538
Most likely, yes.
0
 
LVL 6

Accepted Solution

by:
tangchunfeng earned 200 total points
ID: 35080547
# ps -ef|grep dd
    root 282644 565384 120 16:48:49  pts/0  0:18 dd if=a.jar of=a.aa bs=1
    root 524420 282644 120 16:48:49  pts/0  0:22 dd if=a.jar of=a.aa bs=1

yes, one dd command forks a child process

0
 
LVL 8

Author Closing Comment

by:ReliableDBA
ID: 35087292
Thanks for the timely response.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Background In several of the companies I have worked for, I noticed that corporate reporting is off loaded from the production database and done mainly on a clone database which needs to be kept up to date daily by various means, be it a logical…
Using SQL Scripts we can save all the SQL queries as files that we use very frequently on our database later point of time. This is one of the feature present under SQL Workshop in Oracle Application Express.
This video shows setup options and the basic steps and syntax for duplicating (cloning) a database from one instance to another. Examples are given for duplicating to the same machine and to different machines
This video shows how to Export data from an Oracle database using the Datapump Export Utility.  The corresponding Datapump Import utility is also discussed and demonstrated.

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now