Monitoring the Disk System
SQL Server performance depends heavily on the I/O subsystem. SQL Server is constantly reading pages from and writing pages to disk via the data cache. It is also constantly writing to disk via the transaction log. Focusing on the database data files, transaction log files, and especially tempdb
can yield great performance for your SQL Server platform. Table 39.6 lists the essential performance objects and counters related to monitoring the disk system.
Slow disk I/O causes a reduction in the transaction throughput. To identify which disks are receiving all ...
Get Microsoft® SQL Server 2008 R2 Unleashed now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.