A DBA has notified the storage administrator that a well-established, long-running database server is experiencing delays writing to /tempdb, where log files are stored. Which of the following should

The reported issue specifically concerns "delays writing to /tempdb," so focusing on the read queue length would be less relevant than examining write-specific performance metrics.

Replication status refers to the synchronization of data between database instances and is not a direct metric for diagnosing local storage I/O bottlenecks causing delays in writing to /tempdb.

A high write queue length directly indicates a bottleneck in the storage subsystem's ability to process outgoing write requests from the database server. Monitoring this metric helps pinpoint if the storage itself is overwhelmed, causing the reported delays writing to /tempdb.

netstat is a network utility used for displaying network connections, routing tables, and interface statistics, and is not relevant for diagnosing local disk I/O performance issues on /tempdb.

perfmon (or equivalent system performance monitoring tools) allows the administrator to collect and analyze various disk I/O specific counters, such as average disk queue length, disk writes per second, and average disk seconds per write. These metrics are crucial for identifying specific storage performance bottlenecks impacting /tempdb write operations.