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A technician receives reports that a file server is performing slower than usual after a power failure. While investigating the issue, the technician discovers the write cache was disabled. The technician checks a server configuration document and confirms the cache was previously enabled. Which of the following events most likely caused this change?
Comprehensive and Detailed
Write caching improves disk performance by temporarily storing write operations in faster cache memory before writing to disk. However, to prevent data loss during power failures, write caching relies on a battery-backed cache. If the RAID controller's battery fails, the system may automatically disable write caching to protect data integrity, leading to reduced performance.
A technician is setting up a repurposed server. The minimum requirements are 2TB while ensuring the highest performance and providing support for one drive failure.The technician has the following six drives available:
Which of the following drive selections should the technician utilize to best accomplish this goal?
RAID 5 configuration:Using five of the available drives in a RAID 5 configuration meets the requirements for:
Storage capacity:Four 600GB drives (2, 5, and 6) provide a total usable capacity of 2.4TB (4 * 600 * 0.8), exceeding the minimum requirement of 2TB. RAID 5 introduces parity data for fault tolerance, sacrificing some usable space (one drive's worth).
Performance:The combination of multiple drives in a RAID 5 array improves read performance compared to a single drive setup.
Fault tolerance:Even with a single drive failure (any of the five drives used in the RAID 5), the remaining drives can reconstruct the lost data, allowing the server to continue operating.
A technician wants to limit disk usage on a server. Which of the following should the technician implement?
Disk quotas are a way to limit disk usage on a server by setting a maximum amount of space that each user or group can use. Disk quotas can help manage disk space allocation, prevent disk space exhaustion, and enforce fair usage policies. Disk quotas can be set at the volume level or at the folder level, depending on the file system and operating system used.Reference:https://docs.microsoft.com/en-us/windows-server/storage/ntfs/ntfs-disk-quotas-overview
An administrator receives an alert that one of the virtual servers has suddenly crashed. The administrator confirms the data center does not have any power failures and then connects to the remote console of the crashed server After connecting to the server console, which of the following should the administrator complete first?
When a virtual server crashes and presents a Purple Screen of Death (PSOD), the immediate response should be to document the incident. Collecting a screenshot of the PSOD is crucial as it contains error codes and state information that can be used for diagnosing the root cause of the crash. Noting the details, especially those that come after the line detailing the OS version, can provide specific clues to what might have caused the server to crash. This is a standard best practice before rebooting the server, as it ensures that there is a record of the event to investigate and potentially prevent future occurrences. A hard reboot should only be done after this critical information has been recorded.
A video card in an application server was recently replaced. The server administrator is now able to log in locally and view the screen with no issues; however, the administrator notices other performance issues, including the server's slow response time. The administrator reboots the server, but the issues persist. The server's cooling fans are running as normal, and the BIOS shows the dual power supplies are each working at 30%. Which of the following is most likely causing the performance issues?
Replacing hardware components, such as a video card, can sometimes lead to compatibility issues, especially if the system's firmware (BIOS/UEFI) does not support the new hardware. In this scenario, the server operates, and the display functions correctly, but there are performance issues like slow response times. This suggests that while the basic functionality is intact, there may be underlying compatibility problems affecting overall system performance.
