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How to train Unix staff to manage Linux environment, in view of this problem, this article introduces the corresponding analysis and answer in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

There are a lot of difficulties in migrating Unix to Linux. Is it more difficult to train employees to migrate? Will there be more problems? What do you know about backup and high availability? How do you monitor performance and tune your system? How can you make sure that you provide adequate skills training and certification for your employees? The following will explain in detail the solutions that encounter difficulties when migrating Unix to Linux system training from these aspects.

System management across UNIX and Linux

Don't be persuaded by anyone that Unix and Linux are mostly the same. In fact, they still have many differences, in some subtle and non-subtle places.

The three popular UNIX systems that dominate the market are AIX, HP-UX and Solaris, which are different in many ways. These differences include: kernel, performance monitoring, tuning commands, network, configuration, virtualization, and other processes.

For AIX, it has the dominant GUI or SMIT (abbreviation for system management interface tool). The front end of other UNIX types is similar to the LINUX version.

Although you can use the command line to handle most AIX tasks, it is actually some tasks that are performed through SMIT, otherwise they will not be saved after reboot. A good example is a network command such as ifconfig. On LINUX, you can use ifconfig, which will be saved after reboot.

For AIX, you can use specific commands to change kernel processes, such as vmo, ioo, and schedo. For Solaris, you can use / etc / system. For Linux, you can use sysctl.

If you want to see your running level, on AIX and Solaris, you can type who-r. For Linux, you can use the runlevel command. When you want to check the swap space, use the lsps command on AIX, while for LINUX, you can use swapon- s or free.

Use / etc/filesystems on / etc/vfstab,LINUX on Solaris and / etc/filesystems on fstab,AIX when you want to view file system information.

These are all basic commands. When you work on logical volumes and file systems, things may get more complicated. Please keep in mind that you need effective training. Many vendors now provide specific customized classes for LINUX system administrators from UNIX environments. Take a look at the specific classes from your hardware vendor. IBM provides a specific class called Linux Jumpstart for UNIX professionals.

When considering a Unix-to-Linux migration, there are some advantages to staying on the same hardware platform. Let's take a look at IBM's Power system, which can run AIX or Red Hat or Novell SUSE's Linux version. Because whether you run the AIX or Linux version on the server, the virtualization engine PowerVM on the IBM Power system is the same, and managing virtualization and logical partitioning on these different operating systems is the same. Only understanding a type of virtualization technology that spans multiple OS platforms is a big bonus.

Another benefit is that on a hardware platform, you don't have to worry about endianess, which means that when you migrate to different platforms, it can cause serious problems. But assuming you have a large enough environment, you don't need to learn the architecture of another platform or retrain your hardware staff.

Strategies for backup and high availability

How to back up your system now? In most cases, on IT workstations in large enterprises, you can use third-party products such as NetBackup or TSM, which can provide Unix and Linux clients.

If you use the general Unix tool to back up part of the system data, for Linux systems, because Unix specialized tools do not work, you will need to use equivalent tools instead. I have encountered some problems when using general Unix/Linux tools, such as tar and cpio between different platforms, so be careful.

As for high availability, you may use similar tools in one place. For example, if you use Veritas on Solaris for high availability, there is also a Veritas on the LINUX client. It's the same thing as IBM's PowerHA, formerly known as HACMP, and there are also versions of LINUX that come with the AIX version. The best way is, if possible, to use the tools you are most familiar with.

Monitoring and performance measurement strategy

Performance monitoring is also different between Unix and Linux. The following table shows the differences and uses of some performance tools between Unix and Linux. Again, training is the key.

Unix / Linux performance tool matrix

Make sure you have sufficient skills or certificates

In recent years, Linux certification may still have a long way to go, but since 1999, Red Hat has set up Red Hat certified engineers or RHCE. Red Hat now provides RHCT and RHCA. For RHCE certification, you need to go through a full day of experiments, including written tests, server installation, and network trials.

The Linux Professional Institute has LPI certification, which is a neutral version designed in accordance with the basis of the Linux standard and other relevant regulations. It is divided into three levels: level 1 is junior administrator, level 2 is intermediate administrator, level 3 is senior engineer and administrator. Novell has three certifications: entry-level CLP, engineer-level CLE, and its latest certification is Novell Certified Linux Administrator or CLA, which proves that the person with the certificate knows how to perform the day-to-day management of installing SUSE Linux Enterprise Server networks.

This is the answer to the question about how to train Unix staff to manage the Linux environment. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

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