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Hello, Need your advise to understand more about the disk IO issue. When we troubleshoot disk IO issue, how do we confirm whether the issue is occurred due to disk or application workload? which parameter we need to check from iostat output to confirm the exact reason for the slow-io? Also...

Hello, Need your advise to understand more about the disk IO issue. When we troubleshoot disk IO issue, how do we confirm whether the issue occurred due to faulty disk or application workload? which parameter we need to check from iostat output to confirm the exact reason for the io issue?

Hello Everyone, These concepts are little confusing.. Most of them looks same. But actually they are not. Can someone explain me to understand these concepts. Every time i am getting confused. Virtual memory, Swap memory, Paging, Heap memory, Cache, Buffer. Thanks in advance.

I created a post in a different forum. I want to know how to move/delete it.

Hello All, Good day. Hope you are all doing well.. I have 6+years of experience in Linux. I am doing good at my work and got appreciated many times. But still i am not seeing myself as a LINUX SME. when i log a case with SuSE/RHEL vendor, I see that they are really good in analyzing the issue...

Hello All, Good day. I am working as a Linux admin(SLES, RHEL). I have 5 years of experience. I am trying to move in devops team. I have knowledge about AWS, git, ansible and basics about terraform. To become a devops engineer, what and all I need to learn. I know shell scripting. is it...

Hello, when I try to update any package , it is throwing an error as "unsupported protocol https" OS : SLES 12 SP4 I have another production server with the same OS config. where it is working fine. May I know where exactly the https is disabled. No local firewall is enabled. how do I know...

Hello, Happy new year to everyone. I want to execute certain commands on multiple servers. I use to do this using a for loop. But it takes long time. For example, if I have 1000 servers, script should run the cmd on 50 servers in parallel. so that we can achieve the work fast. I don't know...

Hello All, Good day. Hope you are all doing good. I'm learning Ansible.. I have got some questions. As per my understanding, Ansible uses SSH to communicates with other remote hosts. Is there any other medium to communicate with remote hosts other than SSH. Will there by multiple Ansible...

Could someone guide me how to check disk IO during performance issue. I have got some idea to check the memory & cpu utilization. But I'm not very sure how to check disk IO. I ran iostat -x command. But I'm not sure which part I need to look in iostat output. do we have any formula, to...

Hello everyone, what is the difference between the umask value 0022 and 22. Does both are same?

Hello, how to uncompress/unzip the file? #tar -xzvf messages.xz gzip: stdin: not in gzip format tar: Child returned status 1 tar: Error is not recoverable: exiting now # gzip -d messages.xz gzip: messages.xz: unknown suffix -- ignored could someone help me, how to fix this error.