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Page 1: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

1

© 2010 VMware Inc. All rights reserved

Page 2: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

2

© 2010 VMware Inc. All rights reserved

万翀

27 Otc, 2011

VMware产品故障排除和调优经验分享

Page 3: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

3

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

Page 4: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

4

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

Page 5: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

5

ESX主机不响应

现象

Page 6: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

6

ESX主机不响应

工作原理:

1. vCenter第一次加入ESX时会自动部署vpxa程序到ESX

2. vpxa作为守护程序运行在ESX console

3. vpxa维护ESX(hostd)和vCenter(vpxd)之间的心跳

4. vpxa默认每10秒发送心跳到vCenter

vCenter

ESX

Page 7: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

7

ESX主机不响应

可能原因:

vCenter Agent service(vmware-vpxa) 停止运行/挂起/崩溃/不能启动

ESX Manamgent Agent(mgmt-vmware)停止运行/挂起/崩溃/不能启动

防火墙禁用端口

DNS解析ESX/vCenter错误

ESX主机网络连通性

ESX service console 资源不足

ESX 重启,紫屏,掉电,挂起(Alt+F12)

存储APD

Page 8: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

8

ESX主机不响应

排查方法:

1. 【程序】首先定位是hostd还是vpxa的问题 (VIC直连)

2. 【网络】检查网络包括IP层和网络端口 (Ping/telnet/Firewall)

3. 【硬件】检查主机健康状况 (console/tty)

Page 9: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

9

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

Page 10: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

10

分区表丢失

现象

VMFS数据存储丢失或不可访问

通过VMware vSphere Client或VMware Infrastructure Client,在主机配置的存储适配器视图上仍然可以显示并发现这个丢失的VMFS数据存储卷

ESX vmkernel日志 显示:

cpu0:1031)LVM: 2294: Could not open device , vol [45e3ef74-706b3012-b730-000423cd, 45e3ef74-706b3012-b730-000423cd17ea, 1]: No such partition on target

Page 11: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

11

分区表丢失

可能原因:

这些错误会发生在当ESX/ESXi在使用分区表的同时,该分区表被删除。这可能是其它操作系

统对其可见的卷进行初始化导致的结果。例如:

• 安装一个新的操作系统时,会删除或覆盖这些卷上的分区表,比如Windows2008

• 在一个操作系统被安装后,也有可能去覆盖其可见卷的分区表,比如ESXi

• ESX安装程序会选择去覆盖一个已经存在的VMFS数据存储的分区表

• 自动安装程序比如kickstart, jumpstart或磁盘镜像软件比如ghost,可能会覆盖VMFS数据存储的内容

• 磁盘工具如fdisk, parted或dd,可能被手工或程序调用移除或更改LUN的分区表

• 存储阵列发生故障也可能影响卷的内容

• 如果卷被同时分配给ESX/ESXi和非ESX/ESXi的系统,上述或类似的情况可能会发生。为了避免上述情况

的发生,将卷限制给那些信任的,并且要求访问VMFS数据存储的服务器使用

Page 12: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

12

分区表丢失

修复方法:

运行查看命令:

fdisk -l <dev>

输出结果类似如下:

Disk /dev/sde: 268.4 GB, 268440698880 bytes

255 heads, 63 sectors/track, 32636 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

运行编辑命令,并按回车

fdisk -u <dev>

1. 按n并按回车来创建一个新的分区

2. 按p并按回车来选择该分区为一个主分区

3. 按1并按回车做为第一个分区

4. 按128并回车调整分区到扇区128

5. 再按回车来保留缺省数据

6. 将分区类型更改为fb(VMFS):

7. 按t并按回车.分区1被自动选择

8. 按fb并按回车

9. 按w并按回车来保存

10. 运行vmkfstools -V并按回车来发现VMFS

MBR 第一分区 第二分区

磁盘

Page 13: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

13

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

Page 14: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

14

PCoIP 连接中断

现象:

View Client/Zero Client/Thin Client 和虚拟桌面的连接突然丢失

断连没有规律,随机性强

Page 15: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

15

PCoIP 连接中断

可能原因1:

ThinClient/ZeroClient 固件版本低, PCoIP通信协议版本不一致

方法:

设备提供商官网下载最新固件进行升级

Page 16: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

16

PCoIP 连接中断

可能原因2:

虚拟桌面 Windows 出现故障

• 病毒

• IP地址变更或丢失(DHCP)

• Windows本地连接(网卡)丢失

• vCPU利用率持续很高

• 内存不足

• 系统时钟和域控不一致

• 系统服务停止,如:事件服务

• 虚拟机显存较小

• Windows注册表中wssm.exe 会话管理程序被意外清除

方法:

检查Windows事件查看器

检查Windows任务管理器

检查Windows系统配置

日志错误:

Pending portal logon timed out for user domain\account, wssm may have failed to start correctly, or the user was not able to connect and log in.

Page 17: © 2010 VMware Inc. All rights reserveddownload3.vmware.com/elq/pdf/vforum_cn_2011/PDF... · 9/27/2011  · Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End

17

PCoIP 连接中断

可能原因3:

基础网络环境导致

• DHCP服务器IP地址池较小而且租赁期过短

• 物理交换机配置不当,比如设置QoS导致UDP包传递延时

• 网络不稳定或网络设备负载高,丢包率高、重传率高或延时高

方法:

• 有网络拓扑发生调整吗?有网络设备配置(硬件/软件)调整吗?

• 检查View Client 和 View Agent PCoIP日志,建议保持时间同步

• 在不同的办公网段设置检测点测试丢包率,定位故障范围

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18

PCoIP 连接中断

日志分析(延时)

MGMT_PCOIP_DATA :Tx thread info: round trip time (ms) = 2, variance = 2, rto = 104

MGMT_PCOIP_DATA :Tx thread info: round trip time (ms) = 0, variance = 0, rto = 100

0

5

10

15

20

25

30

35

40

08

/08

/20

11,0

8:0

9:4

7.72

6

08

/08

/20

11,0

8:1

8:4

5.8

75

08

/08

/20

11,0

8:2

7:4

2.2

16

08

/08

/20

11,0

8:3

6:3

6.7

82

08

/08

/20

11,0

8:4

5:31

.88

9

08

/08

/20

11,0

8:5

4:3

1.55

1

08

/08

/20

11,0

9:0

3:36

.439

08

/08

/20

11,0

9:1

2:4

1.6

06

08

/08

/20

11,0

9:2

1:4

7.2

67

08

/08

/20

11,0

9:3

0:5

2.9

40

08

/08

/20

11,0

9:3

9:5

6.2

07

08

/08

/20

11,0

9:4

8:5

2.4

15

08

/08

/20

11,0

9:5

7:4

5.0

01

08

/08

/20

11,1

0:0

6:3

5.9

13

08

/08

/20

11,1

0:1

5:2

7.6

42

08

/08

/20

11,1

0:2

4:2

2.1

10

08

/08

/20

11,1

0:3

3:15

.719

08

/08

/20

11,1

0:4

2:5

8.8

55

08

/08

/20

11,1

0:5

1:52

.68

7

08

/08

/20

11,1

1:0

0:5

0.4

68

08

/08

/20

11,1

1:0

9:5

3.34

9

08

/08

/20

11,1

1:18

:47.

84

8

08

/08

/20

11,1

1:2

7:4

2.0

22

08

/08

/20

11,1

1:36

:37.

535

08

/08

/20

11,1

1:4

5:33

.30

4

08

/08

/20

11,1

1:54

:28

.74

8

08

/08

/20

11,1

2:0

3:2

4.3

43

08

/08

/20

11,1

2:1

2:1

9.7

80

08

/08

/20

11,1

2:2

1:15

.48

2

08

/08

/20

11,1

2:3

0:1

1.2

47

08

/08

/20

11,1

2:3

9:0

6.7

12

08

/08

/20

11,1

2:4

8:0

2.1

86

08

/08

/20

11,1

2:5

6:5

7.6

45

08

/08

/20

11,1

3:0

5:52

.72

8

08

/08

/20

11,1

3:14

:48

.92

0

08

/08

/20

11,1

3:2

3:4

1.0

55

08

/08

/20

11,1

3:32

:34

.72

4

08

/08

/20

11,1

3:4

1:34

.39

1

08

/08

/20

11,1

3:50

:27.

62

3

08

/08

/20

11,1

3:59

:21.

510

08

/08

/20

11,1

4:0

8:1

5.34

7

08

/08

/20

11,1

4:1

7:0

4.1

27

08

/08

/20

11,1

4:2

5:56

.80

0

08

/08

/20

11,1

4:3

9:1

7.4

24

08

/08

/20

11,1

4:4

7:55

.556

08

/08

/20

11,1

5:4

9:3

5.54

5

08

/08

/20

11,1

5:58

:27.

396

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19

PCoIP 连接中断

日志分析(重传)

07/25/2011, 11:59:25.812> LVL:2 RC: 0 MGMT_IMG :rcv nak 3 seq_id 187 disp 0 fsp 10 f_ref 30

07/25/2011, 11:59:25.812> LVL:2 RC: 0 MGMT_IMG :SW_HOST_IPC: NAK for fsp 10 seq 30. (ref id=59) Ack ref available, recode from input

07/25/2011, 11:59:25.812> LVL:2 RC: 0 MGMT_IMG :rcv nak 3 seq_id 188 disp 0 fsp 11 f_ref 215

07/25/2011, 11:59:25.812> LVL:2 RC: 0 MGMT_IMG :SW_HOST_IPC: NAK for fsp 11 seq 215. (ref id=53) Ack ref available, recode from input

07/25/2011, 11:59:25.812> LVL:2 RC: 0 MGMT_IMG :rcv nak 3 seq_id 189 disp 0 fsp 12 f_ref 69

07/25/2011, 11:59:25.812> LVL:2 RC: 0 MGMT_IMG :SW_HOST_IPC: NAK for fsp 12 seq 69. (ref id=24) Ack ref available, recode from input

07/25/2011, 11:59:25.828> LVL:2 RC: 0 MGMT_IMG :rcv nak 3 seq_id 190 disp 0 fsp 13 f_ref 69

07/25/2011, 11:59:25.828> LVL:2 RC: 0 MGMT_IMG :SW_HOST_IPC: NAK for fsp 13 seq 69. (ref id=33) Ack ref available, recode from input

07/25/2011, 11:59:25.828> LVL:2 RC: 0 MGMT_IMG :rcv nak 4 seq_id 191 disp 0 fsp 14 f_ref 194

07/25/2011, 11:59:25.828> LVL:2 RC: 0 MGMT_IMG :SW_HOST_IPC: NAK for fsp 14 seq 194. (ref id=9) Bad decode, recode from scratch

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20

PCoIP 连接中断

日志分析(丢包率)

案例:

09/16/2011, 16:56:23.789> LVL:1 RC: 0 VGMAC :Stat frms: R=000000/000000/237621 T=001420/202164/097937 (A/I/O)

Loss=57.23%/0.00% (R/T)

08/22/2011, 17:12:16.558> LVL:1 RC: 0 VGMAC :Session stats: Average TX=0.0236513 average RX=0.764855 (Mbps) Loss=18.42%/0.00%(R/T)

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

08

/01/

20

11,1

3:2

6:0

3.14

00

8/0

1/2

011

,14

:29

:18

.16

80

8/0

1/2

011

,15:

32:1

8.8

91

08

/01/

20

11,1

6:3

4:4

6.3

83

08

/01/

20

11,1

7:37

:33.

84

40

8/0

1/2

011

,18

:40

:59

.539

08

/02

/20

11,0

8:2

1:4

0.9

520

8/0

2/2

011

,09

:23:

34.4

45

08

/02

/20

11,1

0:2

5:57

.34

60

8/0

2/2

011

,11:

27:

17.8

90

08

/02

/20

11,1

2:2

9:2

4.0

91

08

/03/

20

11,0

8:1

7:11

.32

40

8/0

3/2

011

,09

:18

:49

.475

08

/03/

20

11,1

0:2

1:2

2.4

88

08

/03/

20

11,1

1:2

3:2

6.0

190

8/0

3/2

011

,12

:26

:36

.356

08

/03/

20

11,1

3:2

9:2

2.1

760

8/0

3/2

011

,14

:30

:59

.08

80

8/0

3/2

011

,15:

33:0

5.8

97

08

/03/

20

11,1

6:3

5:33

.919

08

/04

/20

11,0

8:1

7:2

8.7

700

8/0

4/2

011

,09

:20

:13.

86

90

8/0

4/2

011

,10

:21:

19.4

82

08

/04

/20

11,1

1:2

4:0

7.4

720

8/0

4/2

011

,12

:28

:06

.80

80

8/0

4/2

011

,14

:21:

23.

549

08

/04

/20

11,1

5:2

3:19

.016

08

/04

/20

11,1

6:2

5:54

.22

50

8/0

4/2

011

,17:

27:

53.2

370

8/0

4/2

011

,13:

32:4

4.9

750

8/0

5/2

011

,17:

25:

28

.676

08

/05/

20

11,1

6:4

9:2

5.8

87

08

/05/

20

11,1

0:0

6:0

6.6

22

08

/05/

20

11,1

1:0

8:2

0.8

47

08

/05/

20

11,1

2:1

0:2

1.6

69

08

/05/

20

11,1

3:14

:20

.636

08

/05/

20

11,1

4:1

7:0

7.9

95

08

/05/

20

11,1

5:2

0:3

6.3

340

8/0

5/2

011

,16

:22

:40

.158

08

/06

/20

11,0

7:4

9:2

1.9

180

8/0

6/2

011

,08

:52

:22

.72

20

8/0

8/2

011

,09

:11:

17.7

150

8/0

8/2

011

,10

:13:

24

.20

00

8/0

8/2

011

,11:

16:4

0.3

08

08

/08

/20

11,1

2:2

2:0

8.4

790

8/0

8/2

011

,13:

25:

57.8

46

08

/08

/20

11,1

4:2

6:2

9.4

63

RX

TX

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21

PCoIP 连接中断

日志分析 (UDP Ping 超时)

…..

09/27/2011, 13:13:29.485> LVL:1 RC: 0 VGMAC :Stat frms: R=000000/000000/503705 T=004848/192952/198427 (A/I/O) Loss=0.00%/0.00%

(R/T)

09/27/2011, 13:13:36.282> LVL:2 RC: 0 MGMT_IMG :log: cur_s 0 max_s 30 tbl 0 bwc 0.01 bwt 17.58 fps 0.03 fl_ps 0.90

09/27/2011, 13:13:36.282> LVL:2 RC: 0 MGMT_IMG :log: chg pix: 24064, chg pix not motion: 24064

09/27/2011, 13:13:36.282> LVL:2 RC: 0 MGMT_IMG :log: delta bits encoded: 100960, delta build bits encoded: 24456.

09/27/2011, 13:13:36.282> LVL:2 RC: 0 MGMT_IMG :log: enc bits/pixel - 4.20, enc bits/sec - 3363.96, enc MPix/sec - 0.00, decode rate est

(MBit/sec) - 0.00

09/27/2011, 13:13:38.516> LVL:2 RC: 0 MGMT_PCOIP_DATA :Tx thread info: round trip time (ms) = 0, variance = 0, rto = 100

09/27/2011, 13:14:02.720> LVL:1 RC:-504 MGMT_PCOIP_DATA :Unable to communicate with peer on PCoIP media channels (data manager

ping timer expired)

09/27/2011, 13:14:02.720> LVL:2 RC: 0 MGMT_PCOIP_DATA :mgmt_pcoip_data_set_media_activation: URBoIP is used. OHCI & EHCI media

channel is turned OFF

09/27/2011, 13:14:02.720> LVL:1 RC:-500 VGMAC :tera_sock_recv() failed - Interrupted system call (10004)!

09/27/2011, 13:14:02.720> LVL:2 RC: 0 VGMAC :PCoIP UDP RX thread exiting

09/27/2011, 13:14:02.720> LVL:1 RC:-500 MGMT_PCOIP_DATA :INIT: Peer has reset our PCoIP connection. Aborting session ...

…..

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22

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

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23

CPU评估指标

关键测量指标

主机CPU利用率 PCPU USED(%)

虚机CPU利用率 vCPU %USED

虚机CPU等待时间 vCPU %READY

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24

CPU评估指标

技巧

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25

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

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26

内存评估指标

关键测量指标

主机内存空闲状态 high/soft/hard/low

主机气球活动 4%~2%

主机内存页交换 2%~1%

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27

议题内容

常见故障现象及分析

• ESX主机不响应

• 数据存储分区表丢失

• View PCoIP 连接中断

性能关键指标

CPU评估指标

内存评估指标

存储评估指标

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28

存储评估指标

关键测量指标

磁盘吞吐量 READ/s+WRITE/s=IOPS

IO延时 DAVG+KAVG=GAVG

Aborted IO指令 ABRTS/s

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29

存储评估指标

DAVG 图表# esxtop -ab –d 5 –n 120 >esxtop-sample.csv

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30

存储评估指标

关键测量指标

磁盘吞吐量 READ/s+WRITE/s=IOPS

IO延时 DAVG+KAVG=GAVG

Aborted IO指令 ABRTS/s

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31

Q&A

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© 2011 VMware Inc. All rights reserved

谢谢!

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© 2011 VMware Inc. All rights reserved