'Physical disk' presentation slideshows

SQL Server 2008 24X7 Maintenance Considerations

SQL Server 2008 24X7 Maintenance Considerations. Drew Flint Plex Systems, Inc. Database Maintenance. What is the purpose of database maintenance? To ensure consistent , high performance of databases while protecting the integrity of the schema , end user data, and the SQL Server.

804 views • 69 slides

Preparing for the next TSM Version Release

584 views • 46 slides

CSC 660: Advanced OS

CSC 660: Advanced OS. Distributed Filesystems. Topics. Filesystem History Distributed Filesystems AFS GoogleFS Common filesystem issues. Filesystem History. FS (1974) Fast Filesystem (FFS) / UFS (1984) Log-structured Filesystem (1991) ext2 (1993) ext3 (2001) WAFL (1994) XFS (1994)

394 views • 39 slides

Physical Disks

Physical Disks. Module 2.3. Physical Disks. After completing this module, you will be able to: Describe the major physical components of a disk drive and their function Define the logical constructs of a physical disk

557 views • 24 slides

Physical Disks

Physical Disks. Module 2.3. Physical Disks. After completing this module, you will be able to: Describe the major physical components of a disk drive and their function Define the logical constructs of a physical disk

392 views • 24 slides

Disks and Storage Systems

Disks and Storage Systems. CSE451 Andrew Whitaker. Big Picture. OS provides abstractions to allow physical HW resources to be shared CPU sharing with threads Memory sharing with virtual memory Disk sharing with files. Physical disk structure. Disk components platters surfaces tracks

180 views • 17 slides

Using HD_Speed to test I/O performance

Using HD_Speed to test I/O performance. To download HD_Speed , g o to: http://www.steelbytes.com/? mid=20. Testing write performance. *WARNING* Running this test will destroy any data on the selected disk. For this test example, an 8GB LUN was provisioned to the test machine.

196 views • 8 slides

Quiz

Quiz. a. Why is LOOK better than SCAN? Answer the following two questions using exactly one of the words FCFS, SSTF, SCAN, LOOK, C-SCAN, C-LOOK b. Which algorithm possibly results in starvation? c. Which of SCAN or C-SCAN gives better throughput?. Where is RAID, or is SSTF implemented?.

327 views • 7 slides