HP StorageWorks MSA2012i HP StorageWorks 2000 Modular Smart Array Reference Gu - Page 172
Rate Statistics for Virtual Disks
View all HP StorageWorks MSA2012i manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 172 highlights
Rate Statistics for Virtual Disks You can view the following I/O statistics for all virtual disks: ■ The total IOPS and bandwidth for all virtual disks ■ The IOPS and bandwidth for each virtual disk To view overall rate statistics for virtual disks: ● Select Monitor > Statistics > Overall Rate Stats. Statistics shown are based on host-side activity in the interval since the page was last refreshed. The page automatically refreshes at a 60-second interval. Cumulative Statistics for Virtual Disks You can view the following I/O statistics for all virtual disks: ■ The Statistics For All Virtual Disks panel shows the total number of host read and write operations, sectors read and written, and queue depth for each controller module's host ports. ■ The Total For All Virtual Disks - Host Read I/O Size Histogram panel shows how many host read operations fell into a particular size range for all virtual disks. The I/O ranges are based on powers of two. ■ The Total For All Virtual Disks - Host Write I/O Size Histogram panel shows many host write operations fell into a particular size range for all virtual disks. The I/O ranges are based on powers of two. ■ The Host Port Queue Depth & I/O Details panel shows the activity for each port connected to a host. Queue depth is the number of host-originated commands currently queued for the port. Last I/O size is the size of the last host access in sectors. An operation that is not a read or write sets this value to zero. To view cumulative statistics for virtual disks: ● Select Monitor > Statistics > Cumulative Stats. Statistics shown are based on host-side activity in the interval since the page was last refreshed. The page automatically refreshes at a 60-second interval. 172 HP StorageWorks 2000 Family Modular Smart Array reference guide • August 2008