Sun Fire V250 / Solaris9 硬盘问题

[SIZE=-1]            
[/SIZE]                      [SIZE=-1]                          [/SIZE]         
                     
            
                                                         [SIZE=-1]         前天该系统因硬盘故障崩溃，重新安装solaris9后、正常运行一个晚上、然后崩溃。
昨天使用另外一个scsi硬盘，重新安装solaris、运行正常，今天晚上崩溃。
故障信息见文后，请教sun高手，这是什么问题？
以下以今天从系统启动到崩溃的提示信息（前两次故障、信息与此类似）：

SC Alert: Host System has Reset


Sun Fire V250, No Keyboard

Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved.

OpenBoot 4.11.4, 512 MB memory installed, Serial #58147699.

Ethernet address 0:3:ba:77:43:73, Host ID: 83774373.


Boot device: /pci@1d,700000/scsi@4/disk@0,0:a File and args:

SunOS Release 5.9 Version Generic_118558-34 64-bit

Copyright 1983-2003 Sun Microsystems, Inc. All rights reserved.

Use is subject to license terms.

WARNING: /pci@1d,700000/scsi@4 (glm0):

SCSI bus DT DATA IN phase parity error

WARNING: /pci@1d,700000/scsi@4 (glm0):

Target 0 reducing sync. transfer rate

WARNING: /pci@1d,700000/scsi@4 (glm0):

Resetting scsi bus, got incorrect phase from (0,0)

WARNING: /pci@1d,700000/scsi@4 (glm0):

Target 0 disabled wide SCSI mode

WARNING: /pci@1d,700000/scsi@4 (glm0):

Target 0 reverting to async. mode

WARNING: /pci@1d,700000/scsi@4 (glm0):

got SCSI bus reset

WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

auto request sense failed (reason=reset)



WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

SCSI transport failed: reason 'incomplete': retrying command



WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

disk not responding to selection



WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

disk not responding to selection



WARNING: Error reading ufs log

WARNING: ufs log for / changed state to Error

WARNING: Please umount(1M) / and run fsck(1M)

WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

disk not responding to selection



WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

disk not responding to selection



WARNING: /pci@1d,700000/scsi@4/sd@0,0 (sd0):

offline



Cannot mount root on /pci@1d,700000/scsi@4/disk@0,0:a fstype ufs



panic[cpu0]/thread=140a000: vfs_mountroot: cannot mount root



0000000001409970 genunix:vfs_mountroot+70 (0, 0, 0, 200, 1458088, 0)

%l0-3: 000000000144b800 000000000144b800 0000000000002000 0000000001495300

%l4-7: 000000000149b000 0000000001411e60 000000000144c000 000000000144f000

0000000001409a20 genunix:main+90 (1409ba0, f005a0ec, 1409ec0, 393cbf, 2000, 500)



%l0-3: 0000000000000001 000000000140a000 0000000001413020 0000000000000000

%l4-7: 0000000078002000 000000000039c000 00000000014a3b10 0000000001067d98

skipping system dump - no dump device configured

rebooting...

Sun Fire V250, No Keyboard

Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved.

OpenBoot 4.11.4, 512 MB memory installed, Serial #58147699.

Ethernet address 0:3:ba:77:43:73, Host ID: 83774373.

Rebooting with command: boot

Boot device: /pci@1d,700000/scsi@4/disk@0,0:a File and args:

Evaluating:
Can't open boot device
ok[/SIZE]