A systems administrator is troubleshooting a Linux server that hosts both a critical database application and a file share. Users report that database queries are timing out and they are unable to upload new files to the share. The administrator verifies the application service is running, network connectivity is stable, and the server's RAID controller management utility shows the logical drive is healthy. Which of the following is the MOST likely cause of these combined issues?
The RAID controller's write cache battery has failed.
The disk partition has insufficient space.
File and share permissions are configured incorrectly.
A misconfigured RAID is causing slow I/O performance.
The correct answer is that the disk partition is full. A full disk partition explains both reported symptoms simultaneously. The database application cannot write new transaction logs or data, causing it to slow down and time out. Concurrently, users are unable to write new files to the share because there is no available space on the volume. A misconfigured RAID or a failed cache battery would likely cause performance degradation but not necessarily prevent all file writes, and the scenario states the RAID utility reports a healthy state. Incorrect file permissions would explain the inability to upload files but would not explain the database performance issues.
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What is a disk partition, and why is insufficient space a problem?
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