https://blog.khmersite.net/tags/sysadmin/ Recent content in Sysadmin on Kenno's Open Note https://blog.khmersite.net/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E https://blog.khmersite.net/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E Hugo -- 0.154.0 en Wed, 30 Jul 2025 21:01:42 +1000 https://blog.khmersite.net/p/how-to-rename-zfs-pool/ Wed, 30 Jul 2025 21:01:42 +1000 https://blog.khmersite.net/p/how-to-rename-zfs-pool/ <p>I&rsquo;ve been a happy ZFS user for years, appreciating its robustness and features. Yet, in all that time, I&rsquo;d never had to rename a pool. That changed today. Whether it&rsquo;s for better organization, a server migration, or just because you&rsquo;ve had a change of heart about a name, renaming a ZFS pool is a task that might pop up when you least expect it.</p> <p>I needed to rename my pool from <code>anime35</code> to <code>anime36</code>. I was pleasantly surprised to find the process is incredibly simple and elegant, which is what I&rsquo;ve come to expect from ZFS.</p> https://blog.khmersite.net/p/becoming-a-red-hat-certified-engineer/ Thu, 13 Sep 2018 23:55:20 +0000 https://blog.khmersite.net/p/becoming-a-red-hat-certified-engineer/ <p>After spending almost 8 weeks preparation, I finally took the Red Hat Certified Engineer (RHCE) exam yesterday. I found the questions are not very difficult, however it&rsquo;s very easy to make mistakes. The exam duration is 3.5 hours and I had about 15 minutes left when I completed the last question.</p> <p>Having done the the Red Hat Certified System Administrator (RHCSA) before, I remember if you receive an email from Red Hat with an attachment, that implies that you pass the exam. Well, the grade came back within 2 hours after exam, and this time there was no attachment. Oh my!</p>