moving_from_rhel_to_centos_or_oracle_linux
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moving_from_rhel_to_centos_or_oracle_linux [2020/05/22 17:41] – sgriggs | moving_from_rhel_to_centos_or_oracle_linux [2020/06/03 16:55] (current) – [Benefits of Migration] sgriggs | ||
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+ | ==== Disclaimer ==== | ||
+ | |||
+ | This article should be considered an opinionated editorial rather than any type of unbiased review. As a potential Red Hat refugee, it'll give you a lot of useful info. However, It's not supposed to be an impartial product review of Red Hat Enterprise Linux. The author' | ||
+ | |||
==== Moving from Redhat Enterprise Linux (RHEL) to CentOS or Oracle Enterprise Linux ==== | ==== Moving from Redhat Enterprise Linux (RHEL) to CentOS or Oracle Enterprise Linux ==== | ||
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- Red Hat requires every install have a subscription no matter what it's used for (dev, test, UAT, doesn' | - Red Hat requires every install have a subscription no matter what it's used for (dev, test, UAT, doesn' | ||
- | - Red Hat charges too much money for support. | + | - Many believe |
- | - Many of the useful and interesting features such as clustering, glusterfs, and virtualization have been broken into separate and expensive layered products. | + | - Many of the useful and interesting features such as clustering, glusterfs, and virtualization have been broken into separate and expensive layered products. |
- | - Red Hat's kernel patches require a reboot. Oracle Linux with ksplice doesn' | + | - Red Hat's kernel patches require a reboot. Oracle Linux with ksplice doesn' |
- | - Red Hat began the move to Lennart Pottering' | + | - Red Hat began the move to Lennart Pottering' |
- Some customers dislike Red Hat's update schedule, considering it to be overly frequent and aggressive. | - Some customers dislike Red Hat's update schedule, considering it to be overly frequent and aggressive. | ||
- | - Patches and even trivial packages aren't available unless your subscription is up to date. If not, you have a partially broken system. | + | - Patches and even trivial packages aren't available unless your subscription is up to date. If not, you have a partially broken system |
- | - Red Hat sales people | + | - Red Hat sales people |
- | - Red Hat training | + | - Some consider |
- | - Red Hat has been bought by IBM who has begun the process of strip mining | + | - Red Hat has been bought by IBM who some suspect to have begun the process of strip mining |
- | - Red Hat has a history of making poor technical choices. Example: they eschewed XFS and badmouthed | + | - Much criticism has been directed at Red Hat for making poor technical choices. Example: they eschewed XFS and badmouthed |
- | - RHEL follows Fedora and bad decisions in Fedora (of which therea are MANY) filter into RHEL eventually. | + | - RHEL follows Fedora and thus any bad decisions in Fedora (and most sysadmins would never choose a desktop distro like Fedora that has a long history |
- | - Red Hat isn't excited about BTRFS because the main developer works at Oracle. This could lead to more stagnation with Red Hat's already stagnant choices for filesystems. It's missing inline compression and deduplication without either BTRFS, ZFS-on-Linux, | + | - Red Hat isn't excited about BTRFS because the main developer works at Oracle. This could lead to more stagnation with Red Hat's already stagnant choices for filesystems. It's missing inline compression and deduplication without either BTRFS, ZFS-on-Linux, |
These are the reasons folks usually migrate when they are facing internal struggles. | These are the reasons folks usually migrate when they are facing internal struggles. | ||
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- It becomes too expensive to keep dev/ | - It becomes too expensive to keep dev/ | ||
- The sysadmin gets tired of being cut off from OS packages and patches every time entitlements expire. | - The sysadmin gets tired of being cut off from OS packages and patches every time entitlements expire. | ||
- | - Sysadmin frustration with the licensing portal or "Red Hat Satellite" | + | - Sysadmin frustration with the licensing portal or "Red Hat Satellite" |
- | - The management gets tired of some of Red Hat' | + | - The management gets tired of some of Red Hat's salespeople |
- The customer needs clustering, ksplice, storage or OS virtualization, | - The customer needs clustering, ksplice, storage or OS virtualization, | ||
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The main way to decide on a migration target is to consider the reason why you want to ditch Red Hat. If you plan to keep Red Hat's tools and structure but you are just tired of paying so much, then [[https:// | The main way to decide on a migration target is to consider the reason why you want to ditch Red Hat. If you plan to keep Red Hat's tools and structure but you are just tired of paying so much, then [[https:// | ||
- | If you are completely tired of Red Hat (and as an RHCE I totally understand) and want to run away screaming | + | If you are completely tired of Red Hat (and as an RHCE I totally understand) and want to switch |
Check out the features below which are the ones our customers cite the most as being in play when considering a Red Hat migration. | Check out the features below which are the ones our customers cite the most as being in play when considering a Red Hat migration. | ||
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- You are tired of every system needing a subscription even to have basic package functionality. **Solution: | - You are tired of every system needing a subscription even to have basic package functionality. **Solution: | ||
- | - You want a way to escape from Redhat without doing a huge dump-and-load migration on every box. **Solution: | + | - You want a way to escape from Redhat without doing a huge dump-and-load migration on every box. **Solution: |
- You want better choices for advanced filesystems. Solution: Move to Debian, Devuan, Ubuntu Server, or FreeBSD and use either ZFS-on-Linux (or native ZFS in FreeBSD) or migrate to BTRFS when it stabilizes. Also, see if you might be able to get a specific feature by combining [[https:// | - You want better choices for advanced filesystems. Solution: Move to Debian, Devuan, Ubuntu Server, or FreeBSD and use either ZFS-on-Linux (or native ZFS in FreeBSD) or migrate to BTRFS when it stabilizes. Also, see if you might be able to get a specific feature by combining [[https:// | ||
- You want to move to a distro with a stable upgrade path. **Solution: | - You want to move to a distro with a stable upgrade path. **Solution: | ||
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- Access to advanced storage technology Red Hat doesn' | - Access to advanced storage technology Red Hat doesn' | ||
- | Personally, I'd also include "the satisfaction of telling your ultra-rude & aggressive salesperson that you no longer even run Redhat and please stop calling and threatening to audit or otherwise hassle you." In my personal case, I had around 600 RHEL machines convert to Oracle Enterprise Linux and Red Hat's only response was to threaten to do a forced software audit. Since we'd completely migrated every machine, it would have been a very short audit (as in "Would you like a cup of coffee before you go?", but they never actually did it (probably because they knew they had no leg to stand on). |
moving_from_rhel_to_centos_or_oracle_linux.1590169277.txt.gz · Last modified: 2020/05/22 17:41 by sgriggs