帮忙看下是否是存储性能问题，谢谢
下面是sar -d 的结果，发现有几个盘avserv很高，请问这个是不是存储性能问题？可以看出什么来吗？
什么情况会导致avserv很高？谢谢大家了:)
hdisk11 0 0.0 0 0 0.0 0.0
hdisk13 0 0.0 0 0 0.0 0.0
hdisk15 100 0.0 98 11496 5.6 295.0
hdisk19 37 0.0 2 20 0.0 194.5
hdisk20 2 0.0 1 16 0.0 6.6
hdisk24 0 0.0 0 0 0.0 0.0
hdisk26 0 0.0 0 0 0.0 0.0
hdisk28 100 0.0 94 11852 2.3 296.7
hdisk31 1 0.0 2 32 0.0 6.6
hdisk30 41 0.0 4 124 0.0 148.9
hdisk32 0 0.0 0 0 0.0 0.0
hdisk27 0 0.0 0 0 0.0 0.0
hdiskpower4 55 0.0 6 144 0.0 0.0
hdiskpower5 1 0.0 3 48 0.0 0.0
hdiskpower6 100 0.0 206 23348 0.0 0.0
补充下，这是我用DD测试写的性能，系统信息在6#
命令：
dd if=/dev/zero of=/test/test.dbf bs=8k count=30000000
什么情况会导致avserv很高？谢谢大家了:)
hdisk11 0 0.0 0 0 0.0 0.0
hdisk13 0 0.0 0 0 0.0 0.0
hdisk15 100 0.0 98 11496 5.6 295.0
hdisk19 37 0.0 2 20 0.0 194.5
hdisk20 2 0.0 1 16 0.0 6.6
hdisk24 0 0.0 0 0 0.0 0.0
hdisk26 0 0.0 0 0 0.0 0.0
hdisk28 100 0.0 94 11852 2.3 296.7
hdisk31 1 0.0 2 32 0.0 6.6
hdisk30 41 0.0 4 124 0.0 148.9
hdisk32 0 0.0 0 0 0.0 0.0
hdisk27 0 0.0 0 0 0.0 0.0
hdiskpower4 55 0.0 6 144 0.0 0.0
hdiskpower5 1 0.0 3 48 0.0 0.0
hdiskpower6 100 0.0 206 23348 0.0 0.0
补充下，这是我用DD测试写的性能，系统信息在6#
命令：
dd if=/dev/zero of=/test/test.dbf bs=8k count=30000000
25同行回答
回复 4# zhenzongjian
不好意思，对系统不怎熟悉 ，我的是raid5
[root@dev:/]#prtconf |more
System Model: IBM,8204-E8A
Machine Serial Number: 06ED3A5
Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER 6
Processor Version: PV_6
Number Of Processors: 6
Processor Clock Speed: 4204 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 1 06-ED3A5
Memory Size: 47648 MB
Good Memory Size: 47648 MB
Platform Firmware level: EL350_071
Firmware Version: IBM,EL350_071
Console Login: enable
Auto Restart: true
Full Core: false
Network Information
Host Name: dev
IP Address: 10.11.0.2
Sub Netmask: 255.255.248.0
Gateway: 172.16.120.1
Name Server:
Domain Name:
Paging Space Information
Total Paging Space: 16384MB
Percent Used: 2%
[root@dev:/]#lsvg devvg
VOLUME GROUP: devvg VG IDENTIFIER: 00ced3a500004c00000001395d4e0fe5
VG STATE: active PP SIZE: 256 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 5997 (1535232 megabytes)
MAX LVs: 256 FREE PPs: 388 (99328 megabytes)
LVs: 5 USED PPs: 5609 (1435904 megabytes)
OPEN LVs: 5 QUORUM: 2 (Enabled)
TOTAL PVs: 3 VG DESCRIPTORS: 3
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 3 AUTO ON: yes
MAX PPs per VG: 32768 MAX PVs: 1024
LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable
[root@dev:/]#收起
不好意思，对系统不怎熟悉 ，我的是raid5
[root@dev:/]#prtconf |more
System Model: IBM,8204-E8A
Machine Serial Number: 06ED3A5
Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER 6
Processor Version: PV_6
Number Of Processors: 6
Processor Clock Speed: 4204 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 1 06-ED3A5
Memory Size: 47648 MB
Good Memory Size: 47648 MB
Platform Firmware level: EL350_071
Firmware Version: IBM,EL350_071
Console Login: enable
Auto Restart: true
Full Core: false
Network Information
Host Name: dev
IP Address: 10.11.0.2
Sub Netmask: 255.255.248.0
Gateway: 172.16.120.1
Name Server:
Domain Name:
Paging Space Information
Total Paging Space: 16384MB
Percent Used: 2%
[root@dev:/]#lsvg devvg
VOLUME GROUP: devvg VG IDENTIFIER: 00ced3a500004c00000001395d4e0fe5
VG STATE: active PP SIZE: 256 megabyte(s)
VG PERMISSION: read/write TOTAL PPs: 5997 (1535232 megabytes)
MAX LVs: 256 FREE PPs: 388 (99328 megabytes)
LVs: 5 USED PPs: 5609 (1435904 megabytes)
OPEN LVs: 5 QUORUM: 2 (Enabled)
TOTAL PVs: 3 VG DESCRIPTORS: 3
STALE PVs: 0 STALE PPs: 0
ACTIVE PVs: 3 AUTO ON: yes
MAX PPs per VG: 32768 MAX PVs: 1024
LTG size (Dynamic): 1024 kilobyte(s) AUTO SYNC: no
HOT SPARE: no BB POLICY: relocatable
[root@dev:/]#收起
浏览895
最好把你的系统环境都说一下收起
浏览885
还有就是vg信息收起
浏览865
浏览873