DbAppWeb.com - Page 15 of 28 - Solution of Database, Application and Web Server Problems

March 21, 2018 Linux

mount: mount to NFS server ’10.xx.x.xx’ failed: timed out (giving up)

Problem I had an NFS server from which some folders were shared with client servers. Shared folders were mounted on the client servers. Due to some hardware problem in the NFS server, the server suddenly becomes dead and after that, I created and configured a new …

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March 18, 2018 IBM WebSphere Application Server, Linux

Switching to JAVA SDK 8.0 from JAVA SDK 7.1 on WAS 8.5.5.x

Before trying to update/upgrade the running JAVA SDK on WAS 8.5.5.x you need to check whether your setup is fulfilling the minimum requirements or not. Fix Pack 9 or higher should be applied to your WAS to switch the JAVA SDK 8.0 from JAVA SDK 7.1. In …

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March 16, 2018 Linux

Transfer file using scp: Permission denied

Problem I tried to copy a file from one Linux server dbappweb to another Linux server dbappweb1 but got the error ‘Permission denied’. I tried to copy the file using the SCP command over ssh. # scp -p PKIServer.zip user1@dbappweb1:/home/user1/ user1@dbappweb1's password: scp: /home/user1/PKIServer.zip: Permission denied Reason I got …

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March 14, 2018 Storage Servers

HP MSA Default Username & Password

To manage and monitor an HP MSA storage array we need to log in on this. Here HP MSA refers to HP MSA 1040 and HP MSA 2040. Default usernames and passwords are given below to log in to HP MSA. Administrative/Management User Username: manage Default …

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March 12, 2018 IBM WebSphere Application Server

How to Check JAVA SDK installed on WAS 8.5.5.x and running JAVA SDK

There may be more than one JAVA version installed on a WebSphere Application Server but only one JAVA version will be active at a time. Use the command managesdk to check and manage the JAVA SDK on WAS 8.5..5.x. List all installed JAVA SDK Use the below command …

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March 8, 2018 Linux

NFS mount points unreachable and df hangs

Problem I had an NFS server from which some folders were shared with the client-server. Shared folders were mounted on the client server. Due to some hardware problem in the NFS server, the server suddenly becomes dead and after that when I tried to access the …

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February 23, 2018 IBM WebSphere Application Server

exception: java.lang.ClassNotFoundException: DSRA8000E: Java archive (JAR) or compressed files do not exist in the path or the required access is not allowed. Path: /ojdbc6.jar.

I have installed WebSphere Application Server 8.5 on a new RHEL 6.8 server. After WAS installation I created the data source but when I tried to test the database connection for this data source it becomes failed with the message given below. Problem I got the below error message …

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February 22, 2018 Linux

How to create tar archive and remove original files

Sometimes we need to remove or delete the files after creating the tar archive to increase the free space. Use the tar command with –remove-files option to remove/delete the files after creating the tar archive. List the files # ll total 1015088 -rw-r--r-- 1 root root 810695 Dec 31 04:00 …

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February 21, 2018 IBM WebSphere Application Server

How to find JAVA version used by WebSphere Application Server (WAS)

There may be more than one version of JAVA installed on the server but the server will use only one. To find the JAVA version used by WebSphere Application Server (WAS) see the SystemOut.log Find JAVA Version used by WAS using SystemOut.log Navigate to the folder where SystemOut.log …

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February 9, 2018 VMware ESXi

How to find system info, processor info, cache info, memory info etc from ESXi host CLI

During an upgrade of a DELL PowerEdge R730/R830 server, we have increased the RAM from 24 GB to 88 GB and CPU from 1 to 2. After booting the system when we checked from the BIOS we found the system is showing 2 CPU but showing RAM …

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