The following example shows the Disk Statistics Section:
Tabular Report YQUEM (VAX 6000-440) Page 1 PA Vx.x Tuesday 26-JAN-1997 09:00 to 10:00 ************************ Node: YQUEM Final Statistics *********************** ************************ Data Analyzed: from 26-JAN-1997 09:00:00.00 to 26-JAN-1997 10:00:00.00 *********************** +------------------------------------------------ Disk Statistics ------------------------------------------+ ! Work Resp ! ! Node: YQUEM Avail Paging Swping Contlr Rate Read Remote Time Queue Space ! ! % % % % (/s) % I/O% (ms) Length Used % ! ! ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ ! ! DSA0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 95.8 ! ! DSA1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 80.9 ! ! DSA10 2.2 0.0 0.0 2.4 0.7 86.7 0.0 36 0.0 61.1 ! ! DSA111 11.7 26.1 0.0 14.8 4.0 71.8 0.0 34 0.1 98.8 ! ! DSA12 0.6 0.0 0.0 0.5 0.1 79.3 0.0 43 0.0 32.8 ! ! DSA29 0.2 0.0 0.0 0.3 0.1 56.5 0.0 35 0.0 81.8 ! ! DSA30 1.0 34.9 0.0 1.0 0.3 62.4 0.0 39 0.0 99.0 ! ! DSA31 2.1 0.0 0.0 2.9 0.8 57.3 0.0 30 0.0 99.9 ! ! DSA32 1.0 0.0 0.0 0.9 0.2 80.6 0.0 40 0.0 99.3 ! ! DSA33 0.0 0.0 0.0 0.0 0.0 93.3 0.0 28 0.0 85.0 ! ! . . . . . . . . . . . ! ! . . . . . . . . . . . ! ! . . . . . . . . . . . ! ! YQUEM$DFSC7101 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 Unknown ! ! YQUEM$DFSC7102 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 Unknown ! ! YQUEM$DFSC7103 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 Unknown ! ! YQUEM$DFSC7104 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 Unknown ! ! YQUEM$DFSC7105 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0 Unknown ! +-----------------------------------------------------------------------------------------------------------+ User Command: ADVISE PERF REPORT TAB/SECT=DISK/NODE=YQUEM/BEG=26-JAN-1997 09:00:00.00/END=26-JAN-1997 10:00:00.00/OUT=TAB_DISK.YQUEM
The following statistics are given for each mounted disk:
The percentage of time that the disk had any type of I/O request outstanding.
The percentage of the Work Avail time that the disk was doing paging I/O (including I/O to and from paging files, image activations or global section writes.
The percentage of the Work Avail time that the disk was doing swapping I/O. This includes both swapping and modified page writing.
The percentage of this disk controller's activity that was busy because of this disk.
The number of I/O operations per second performed by the disk.
The percentage of read I/O performed to the disk.
The percentage of I/O to a disk performed on behalf of other nodes in a cluster system.
The response time is the mean time, per I/O request, for the device in milliseconds. This is the total time taken to perform an I/O request and is the sum of the queuing time at the server and the service time. It is measured from the time the I/O request is issued until the time the controller completes the request.
The average number of disk I/O requests waiting for service.
The percentage of the total disk volume space that is allocated. Reported only for file structured and mounted disks.
The following example shows the Server Statistics Section:
+-------------------- Server Statistics ---------------------+ ! Work ! ! Avail Paging Swaping Queue ! ! % % % Length ! ! ------ ------ ------ ------ ! ! ARGOT 0.0 0.0 0.0 0.0 ! ! EXURB 0.0 0.0 0.0 0.0 ! ! GLIA 0.0 0.0 0.0 0.0 ! ! HSC0 0.4 0.1 0.0 0.0 ! ! HSC002 0.0 0.0 0.0 0.0 ! ! HSC1 0.6 10.5 0.0 0.2 ! ! MNGLNG 0.0 0.0 0.0 0.0 ! ! SNOLPD 0.0 0.0 0.0 0.0 ! ! ULTRA 0.0 0.0 0.0 0.0 ! ! VERB 0.0 0.0 0.0 0.0 ! +------------------------------------------------------------+
The server statistics reported are as follows:
Work Avail %
The percentage of time there were I/O requests at the server queue. Reported only for By Node statistics.
The percentage of the work available marked as Page I/O.
The percentage of work available marked as Swap I/O.
The average sum of the requests at the server queue.
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