Proactive administration is the best way to avoid these alerts. Adopt these best practices:
user wants a long article about the ASM Health Checker failure alert. I need to cover what it is, causes, troubleshooting, and solutions. The target audience is technical, likely web hosting users or website administrators. I'll search for information about ASM Health Checker, focusing on cPanel/WHM, common failures, fixes, and similar issues. I'll also look for general troubleshooting guides and community discussions. search results show some relevant pages. Result 0 is a blog post about "ASM Health Checker found 1 new failures" from 2016, which might be about Oracle ASM. Result 1 is about "Checker Failure Detected v$hm_run" and mentions ASM. Result 5 is a tag page for "ASM Health Checker found 1 new failures". I'll open these to get more details. search results show that "ASM Health Checker" can refer to different things: Oracle ASM, cPanel/WHM, and possibly others. The user's keyword is "asm health checker found 1 new failures". I'll need to cover the different contexts. I'll also search for "ASM Health Checker cPanel" and "ASM Health Checker Oracle". search results show various contexts. I'll structure the article to cover the main interpretations: Oracle ASM, cPanel/WHM, and other possibilities. I'll also include troubleshooting steps and solutions. I'll start by explaining what ASM is and then focus on the health checker failure. I'll cite relevant sources. into a technical alert like "ASM Health Checker found 1 new failures" can be disconcerting, especially if you're not sure what it means or where to start. This message isn't a system crash, but it is a clear signal that a critical part of your infrastructure—likely an Automatic Storage Management (ASM) instance—has detected a problem and requires your attention. Failure to address these issues promptly can lead to serious consequences, including data corruption and database downtime. This article provides a comprehensive breakdown of what the alert means, why it happens, and exactly how to diagnose and fix the problem.
In environments like F5 BIG-IP ASM, failures often stem from disk space limits in the /var partition or database table row limits. Immediate Diagnostic Steps asm health checker found 1 new failures
After the repair and any subsequent rebalance operation are complete, re-run the diagnostic CHECK command without the REPAIR clause.
If dd fails with "Input/output error", the disk is physically failing. Proactive administration is the best way to avoid
Note: Replace the above with actual failure description from your ASM health checker output.
The hum of the server room was usually a comforting white noise for Leo, the lead DevOps engineer. But at 3:00 AM, that hum sounded more like a low-pitched warning. The target audience is technical, likely web hosting
Severe underlying disk defects, such as a controller failure, bad blocks, or an unresponsive storage array.
Sometimes, the alert is triggered not by a real failure but by a bug. For example, users of CloudLinux with CageFS enabled reported false-positive health check warnings on cPanel v134 and newer. In this case, the solution was to wait for a patch (e.g., cagefs-7.6.31-1 ) or update your software.
For the disk mentioned in the failure detail:
If you want, I can: