Solaris 10系统频频被挂起

sghhttp

现象:  能ping通，tnsping通，但很慢，数据库不能访问，ssh连接不了，显示器、键盘接服务器没有反应。
系统内核：SunOS DB02 5.10 Generic_142910-17 i86pc i386 i86pc
数据库：  ORACLE RDBMS Version: 10.2.0.1.0.
检查： oracle alter警告日志，adump ,bdump ,cdump ,udump 都已经检查，宕机前后没有发现有价值的的日志。
       系统的 /var/log ，/var/mail，/ var/adm 下的日志也查过没有发现有价值的日志。
各位大哥请帮忙分析问题出在哪里，我还可以从哪些地方去分析查找问题。不胜感激！

wolfeyes_cu

你机器的硬件配置是怎么样的?

bj161109

more /etc/nsswitch.conf

看下 host 后面是否有dns
more /etc/resolv.conf

sghhttp

bash-3.00# more /etc/nsswitch.conf
#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident "@(#)nsswitch.files     1.14    06/05/03 SMI"

#
# /etc/nsswitch.files:
#
# An example file that could be copied over to /etc/nsswitch.conf; it
# does not use any naming service.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.

passwd:     files
group:      files
hosts:      files
ipnodes:    files
networks:   files
protocols:  files
rpc:        files
ethers:     files
netmasks:   files
bootparams: files
publickey:  files
# At present there isn't a 'files' backend for netgroup;  the system will
#   figure it out pretty quickly, and won't use netgroups at all.
netgroup:   files
automount:  files
aliases:    files
services:   files
printers:       user files

auth_attr:  files
prof_attr:  files
project:    files

tnrhtp:     files
tnrhdb:     files
bash-3.00# more /etc/resolv.conf
/etc/resolv.conf: No such file or directory

sghhttp

我的服务器硬件配置：
bash-3.00# prtdiag -v
System Configuration: Dell Inc. PowerEdge R710
BIOS Configuration: Dell Inc. 1.3.6 10/30/2009
BMC Configuration: IPMI 2.0 (KCS: Keyboard Controller Style)

==== Processor Sockets ====================================

Version                          Location Tag
-------------------------------- --------------------------
Intel(R) Xeon(R) CPU           E5504  @ 2.00GHz CPU1
Intel(R) Xeon(R) CPU           E5504  @ 2.00GHz CPU2

==== Memory Device Sockets ================================

Type    Status Set Device Locator      Bank Locator
------- ------ --- ------------------- --------------------
Unknown empty  1   DIMM_A1            
Unknown in use 1   DIMM_A2            
Unknown in use 2   DIMM_A3            
Unknown empty  2   DIMM_A4            
Unknown empty  3   DIMM_A5            
Unknown empty  3   DIMM_A6            
Unknown empty  4   DIMM_A7            
Unknown empty  4   DIMM_A8            
Unknown empty  5   DIMM_A9            
Unknown empty  5   DIMM_B1            
Unknown in use 6   DIMM_B2            
Unknown in use 6   DIMM_B3            
Unknown empty  4   DIMM_B4            
Unknown empty  5   DIMM_B5            
Unknown empty  6   DIMM_B6            
Unknown empty  4   DIMM_B7            
Unknown empty  5   DIMM_B8            
Unknown empty  6   DIMM_B9            

==== On-Board Devices =====================================
Embedded Matrox G200 Video
Embedded Broadcom 5709C NIC 1
Embedded Broadcom 5709C NIC 2
Embedded Broadcom 5709C NIC 3
Embedded Broadcom 5709C NIC 4
Integrated RAID Controller

==== Upgradeable Slots ====================================

ID  Status    Type             Description
--- --------- ---------------- ----------------------------
1   available Unknown          PCI1
2   available Unknown          PCI2
3   available Unknown          PCI3
4   available Unknown          PCI4

sghhttp

在这里先谢过楼上两位大哥了

peterwang_60

provide output
#svcs ssh

sghhttp

svcs ssh输出如下
# svcs ssh
STATE          STIME    FMRI
online         Jun_20   svc:/network/ssh:default

peterwang_60

Try from local host with
ssh userid@localhost

Try from remote machine with
telnet yourservername 22

Also you could try from remote machine with
ssh -v userid@servername or with ip

provide output

sghhttp

bash-3.00$ ssh oracle@DB02
The authenticity of host 'db02 (192.168.19.11)' can't be established.
RSA key fingerprint is 7f:c4:8d:88:d7:66:4a:1e:a1:85:63:93:e9:92:33:41.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'db02,192.168.19.11' (RSA) to the list of known hosts.
Password:
Last login: Mon Jun 27 16:35:18 2011 from 192.168.19.51
Oracle Corporation      SunOS 5.10      Generic Patch   January 2005