Adaptec AHA-3980 User's Guide download pdf (Page 37)

5-3

Monitoring Array Performance

Creating and Managing Arrays

Stock Number: 510685-00, Rev. A Page: 5-3

Print Spec Number: 493069-00

Current Date: 3/3/99 ECN Date: 3/28/95

At the last information screen, press any key to return to the

Status menu.

Press

Esc

to return to the System menu or Main menu.

Displaying Performance Statistics

To display the performance statistics for an array or the disks in an

array, follow these steps:

If the system has only one array, skip to step 2. Otherwise,

from the System menu select the array for which you want the

statistics. The Main menu for that array appears.

From the Main menu, select

isplay Array Status

. The Status

menu appears.

Select

Display S

tatistics

. The Statistics menu for that array

appears.

Select one of the following options:

emporary Array Statistics:

To display for the entire array the

number of read requests and write requests.

Temporary Drive S

tatistics:

To display for each drive the num-

ber of reads, the number of writes, and the total sectors read

from and written to.

Permanent D

rive Statistics:

To display for each drive the

errors that were corrected, successful retries, and reassigned

blocks.

When finished viewing the screen of statistics, press

Esc

to dis-

play a pop-up menu and then select

uit

Note:

Totals are reset to zero when an array is formatted or

when you reset the totals to zero (see Resetting the Temporary

Statistics to Zero on page 5-4).

Changing the Data Sampling Rate

To develop the performance statistics, the arrays and drives are sam-

pled once every second. If this slows the driver performance when

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