bdev subcommand
The bdev subcommand displays Workload Manager (WLM) I/O statistics for block devices.
Format
bdev [a] [c] [s] * | -d major minor | effectiveaddress
Parameters
| Item | Description |
|---|---|
| a | Displays detailed (all) I/O statistics. |
| c | Displays I/O statistics for each class. |
| s | Displays I/O statistics for each device. This is the default. |
| * | Displays I/O statistics for all managed devices. |
| -d | Displays I/O statistics for a device specified by the major and minor numbers. |
| major | Specifies the major number. This is a hexadecimal value. |
| minor | Specifies the minor number. This is a hexadecimal value. |
| effectiveaddress | Specifies the effective or virtual address for a device with a control block. Symbols, hexadecimal values, or hexadecimal expressions can be used to specify the address. |
Other
wlm_bdev
Examples
The following is an example of how to use the bdev subcommand:
Display summary statistics for all devices
KDB(0)> bdev *
33507000: ~ dev: 14,0 in_queue: 0 classes: 0 rq/s: 0 act: 0
33459000: ~ dev: 14,1 in_queue: 0 classes: 0 rq/s: 0 act: 0
334B0000: + dev: 14,2 in_queue: 2 classes: 7 rq/s: 157 act: 100
Description of output (above)
Column Description
1 eaddr of bdev control block
2 status of device
"-" = uregulated
"~" = no activity
"+" = active
3 dev: device major, minor number
4 in_queue: number of requests enqueued
5 classes: number of active classes for the device
6 rq/s: number of requests per second for the device
7 act: the percent active for the device
Display statistics for device with major # 14 and minor # 2
KDB(0)> bdev s -d 14 2
334B0000: + dev: 14,2 in_queue: 2 classes: 7 rq/s: 157 act: 100
flags 0x00000000 lock 0x00000000
next 00000000 nb_cntrl 4416
cntrl 334B00F0 reguls 334C14F0
delayed 32AEE000 in_use 0
ev_want_free 0xFFFFFFFF wbd_active_cntrl 7
wbd_in_queue 2 wbd_max_queued 6
dkstat 32AD5274 prev_dk_time 919418
¤t 334B00CC &info.wbd_last 334B0024
&info.wbd_max 334B003C &info.wbd_av 334B0054
&info.wbd_total 334B0070
Type RTHR WTHR RQSTS QUEUE STRVD ACTVT
current 0 672 42 11 0 0
wbd_last 0 2512 157 36 0 100
wbd_max 9280 12192 1172 145 1 100
wbd_av 0 2441 152 33 0 100
wbd_total 12584 23267266 1460289 112491 578 918479
Examples for BIO statistics using cla command
KDB(0)> cla * 6
(wlm is ON) TIER %% MIN SHA SMAX HMAX DES RAP URAPH URAP URAPL
[ 0]: Unclassified 0 0 0 -1 100 100 100 100 0 0 511
[ 64]: Unmanaged 0 0 0 -1 100 100 100 100 0 0 511
[128]: Default 0 0 0 -1 100 100 100 100 0 0 511
[129]: Default.Default 0 0 0 -1 100 100 100 100 0 0 255
[130]: Default.Shared 0 0 0 -1 100 100 100 100 0 0 255
[192]: Shared 0 0 0 -1 100 100 100 100 0 0 511
[193]: Shared.Default 0 0 0 -1 100 100 100 100 0 0 255
[194]: Shared.Shared 0 0 0 -1 100 100 100 100 0 0 255
[256]: System 0 0 0 -1 100 100 100 100 0 0 511
[257]: System.Default 0 0 0 -1 100 100 100 100 0 0 255
[258]: System.Shared 0 0 0 -1 100 100 100 100 0 0 255
[320]: Test1 0 25 0 -1 100 100 100 58 0 106 511
[321]: Test1.Default 0 25 0 -1 100 100 100 58 53 106 308
[322]: Test1.Shared 0 0 0 -1 100 100 100 100 53 53 308
[384]: Test2 0 3 0 -1 10 100 10 53 0 119 511
[385]: Test2.Default 0 3 0 -1 100 100 100 53 59 119 315
[386]: Test2.Shared 0 0 0 -1 100 100 100 100 59 59 315
[448]: Test3 0 3 0 -1 10 100 10 53 0 119 511
[449]: Test3.Default 0 3 0 -1 100 100 100 53 59 119 315
[450]: Test3.Shared 0 0 0 -1 100 100 100 100 59 59 315
[512]: Test4 1 0 0 -1 100 100 100 100 512 512 1023
[513]: Test4.Default 0 0 0 -1 100 100 100 100 512 512 767
[514]: Test4.Shared 0 0 0 -1 100 100 100 100 512 512 767
KDB(0)> cla * 7
(wlm is ON) TIER %% MIN SHA SMAX HMAX DES RAP URAPH URAP URAPL RTHR WTHR DELAY VERSION
[320]: Test1 0 25 0 -1 100 100 100 58 0 106 511
hdisk1 0 77 0 -1 100 100 100 12 0 224 511 0 0 0 2
[321]: Test1.Default 0 25 0 -1 100 100 100 58 53 106 308
hdisk1 0 77 0 -1 100 100 100 12 112 224 367 0 496 0 1
[384]: Test2 0 3 0 -1 10 100 10 53 0 119 511
hdisk1 0 10 0 -1 10 100 11 0 0 254 511 0 0 39 5
[385]: Test2.Default 0 3 0 -1 100 100 100 53 59 119 315
hdisk1 0 10 0 -1 100 100 100 5 127 247 382 0 80 28 1
[448]: Test3 0 3 0 -1 10 100 10 53 0 119 511
hdisk1 0 11 0 -1 10 100 12 -100 0 509 511 0 0 35 4
[449]: Test3.Default 0 3 0 -1 100 100 100 53 59 119 315
hdisk1 0 11 0 -1 100 100 100 4 254 376 510 0 96 24 1
KDB(0)> cla * 8
(wlm is ON) TIER %% MIN SHA SMAX HMAX DES RAP URAPH URAP URAPL RTHR WTHR DELAY VERSION
[ 0]: Unclassified 0 0 0 -1 100 100 100 100 0 0 511
cd0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 1
[ 64]: Unmanaged 0 0 0 -1 100 100 100 100 0 0 511
cd0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 1
[128]: Default 0 0 0 -1 100 100 100 100 0 0 511
cd0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk1 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
[129]: Default.Default 0 0 0 -1 100 100 100 100 0 0 255
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
[130]: Default.Shared 0 0 0 -1 100 100 100 100 0 0 255
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
[192]: Shared 0 0 0 -1 100 100 100 100 0 0 511
cd0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk1 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
[193]: Shared.Default 0 0 0 -1 100 100 100 100 0 0 255
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
[194]: Shared.Shared 0 0 0 -1 100 100 100 100 0 0 255
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
[256]: System 0 0 0 -1 100 100 100 100 0 0 511
cd0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk1 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
[257]: System.Default 0 0 0 -1 100 100 100 100 0 0 255
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
[258]: System.Shared 0 0 0 -1 100 100 100 100 0 0 255
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
[320]: Test1 0 25 0 -1 100 100 100 58 0 106 511
cd0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk0 0 0 0 -1 100 100 10 100 0 0 511 0 0 0 2
hdisk1 0 77 0 -1 100 100 100 12 0 224 511 0 0 0 2
[321]: Test1.Default 0 25 0 -1 100 100 100 58 53 106 308
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 77 0 -1 100 100 100 12 112 224 367 0 496 0 1
[322]: Test1.Shared 0 0 0 -1 100 100 100 100 53 53 308
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 112 112 367 0 0 0 1
[384]: Test2 0 3 0 -1 10 100 10 53 0 119 511
cd0 0 0 0 -1 10 100 10 100 0 0 511 0 0 0 5
hdisk0 0 0 0 -1 10 100 10 100 0 0 511 0 0 0 5
hdisk1 0 10 0 -1 10 100 11 0 0 254 511 0 0 39 5
[385]: Test2.Default 0 3 0 -1 100 100 100 53 59 119 315
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 10 0 -1 100 100 100 5 127 247 382 0 80 28 1
[386]: Test2.Shared 0 0 0 -1 100 100 100 100 59 59 315
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 127 127 382 0 0 0 1
[448]: Test3 0 3 0 -1 10 100 10 53 0 119 511
cd0 0 0 0 -1 10 100 10 100 0 0 511 0 0 0 4
hdisk0 0 0 0 -1 10 100 10 100 0 0 511 0 0 0 4
hdisk1 0 11 0 -1 10 100 12 -100 0 509 511 0 0 35 4
[449]: Test3.Default 0 3 0 -1 100 100 100 53 59 119 315
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 11 0 -1 100 100 100 4 254 376 510 0 96 24 1
[450]: Test3.Shared 0 0 0 -1 100 100 100 100 59 59 315
cd0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 0 0 255 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 254 254 510 0 0 0 1
[512]: Test4 1 0 0 -1 100 100 100 100 512 512 1023
cd0 1 0 0 -1 100 100 10 100 512 512 1023 0 0 0 1
hdisk0 1 0 0 -1 100 100 10 100 512 512 1023 0 0 0 1
hdisk1 1 0 0 -1 100 100 0 100 512 512 1023 0 0 0 1
[513]: Test4.Default 0 0 0 -1 100 100 100 100 512 512 767
cd0 0 0 0 -1 100 100 10 100 512 512 767 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 512 512 767 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 512 512 767 0 0 0 1
[514]: Test4.Shared 0 0 0 -1 100 100 100 100 512 512 767
cd0 0 0 0 -1 100 100 10 100 512 512 767 0 0 0 1
hdisk0 0 0 0 -1 100 100 10 100 512 512 767 0 0 0 1
hdisk1 0 0 0 -1 100 100 10 100 512 512 767 0 0 0 1