HP StorageWorks P9000 Performance Advisor Software v5.4 User Guide (T1789-96328, April 2012)

The Performance Estimator screen corresponding to the selected XP disk array appears.
The Array List displays the XP disk arrays that belong to the selected XP disk array model. By
default, the Performance Estimator screen displays the current configuration for the first XP disk
array that appears in the Array List.
IMPORTANT:
Performance Estimator supports:
• 72 GB, 146 GB, 300 GB, and 400 GB disks.
• RAID 1 (2D + 2D) and RAID 5 (7D + 1P) configurations.
• SAS and SSD drive types.
3. Continue estimating the performance for the default selected XP disk array or select a different
XP disk array from the Array List.
4. To estimate the I/Os, MB/sec, R.T. (ms), and number of disks required:
a. Select the disk type from the Disk Type list.
b. Select the RAID type from the RAID Type list.
c. To choose the number of RAID groups to be configured for the selected RAID type, click the
triangular button on the # RGs horizontal scroll bar and holding it down, drag the button
either forward or backward on the horizontal scroll bar. You can configure a maximum of
288 RAID groups for RAID 1 (2D+2D) and 144 RAID groups for RAID 5 (7D+1P).
Accordingly, the text box on the right side of the # RGs horizontal scroll bar displays the
selected number of RAID groups. The RAID groups number varies depending on where you
place the triangular button on the horizontal scroll bar. You can also enter a different RAID
group number, increment, or decrement this number using the triangular buttons that appear
next to the text box.
d. From the Workload list, select the workload for which you want to estimate the performance
of the XP disk array. The following are the available workloads:
• 4k Random Reads, 4k Random Writes, 4k Random Mix (60/40 r/w)
• 8K Random Reads, 8K Random Writes
• 56k Sequential Reads, 56k Sequential Writes
• 64K Sequential Reads, 64K Sequential Writes
• 512K Sequential Reads, 512K Sequential Writes
e. To choose the workload intensity level, click the triangular button on the Intensity horizontal
scroll bar and holding it down, drag the button either forward or backward on the horizontal
scroll bar.
Accordingly, the text box on the right side of the Intensity horizontal scroll bar displays the
selected intensity level. The intensity level varies depending on where you place the triangular
button on the horizontal scroll bar. You can also enter a different intensity level, increment,
or decrement this number using the triangular buttons that appear next to the text box.
Intensity defines the number of parallel threads that are applied on the XP disk array. Higher
the intensity level, faster is the rate at which the workload is executed. Thus, the intensity
level is automatically load balanced across the disks.
Based on the above selection, the Performance Estimator displays the estimated values in the
following non-editable text boxes:
• IO/sec - Indicates the I/Os that the XP disk array can receive for the selected configuration.
• MB/sec - Indicates the MB/s of data that the XP disk array can receive per second for the
selected configuration.
HP StorageWorks P9000 Performance Advisor Software User Guide 343