日志信息
[cssd(4537)]CRS-1707ease acquisition for node rac02 number 2 completed
2014-05-24 20:24:16.812
[cssd(4537)]CRS-1605:CSSD voting file is online: /dev/sdc; details in /u01/11.2.0/grid/log/rac02/cssd/ocssd.log.
2014-05-24 20:24:16.941
[cssd(4537)]CRS-1605:CSSD voting file is online: /dev/sdb; details in /u01/11.2.0/grid/log/rac02/cssd/ocssd.log.
2014-05-24 20:24:28.163
[cssd(4537)]CRS-1601:CSSD Reconfiguration complete. Active nodes are rac01 rac02 .
2014-05-24 20:24:29.257
[ctssd(4756)]CRS-2403:The Cluster Time Synchronization Service on host rac02 is in observer mode.
2014-05-24 20:24:49.297
[ctssd(4756)]CRS-2407:The new Cluster Time Synchronization Service reference node is host rac01.
2014-05-24 20:24:49.315
[ctssd(4756)]CRS-2409:The clock on host rac02 is not synchronous with the mean cluster time. No action has been taken as the Cluster Time Synchronization Service is running in observer mode.
2014-05-24 20:24:50.202
[ctssd(4756)]CRS-2401:The Cluster Time Synchronization Service started on host rac02.
2014-05-24 20:24:50.224
[/u01/11.2.0/grid/bin/oraagent.bin(4444)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006" in "/u01/11.2.0/grid/log/rac02/agent/ohasd/oraagent_grid/oraagent_grid.log"
2014-05-24 20:24:50.392
[/u01/11.2.0/grid/bin/oraagent.bin(4444)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006" in "/u01/11.2.0/grid/log/rac02/agent/ohasd/oraagent_grid/oraagent_grid.log"
2014-05-24 20:24:50.891
[/u01/11.2.0/grid/bin/oraagent.bin(4444)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006" in "/u01/11.2.0/grid/log/rac02/agent/ohasd/oraagent_grid/oraagent_grid.log"
2014-05-24 20:24:50.975
[/u01/11.2.0/grid/bin/oraagent.bin(4444)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006" in "/u01/11.2.0/grid/log/rac02/agent/ohasd/oraagent_grid/oraagent_grid.log"
2014-05-24 20:24:50.990
[/u01/11.2.0/grid/bin/oraagent.bin(4444)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006" in "/u01/11.2.0/grid/log/rac02/agent/ohasd/oraagent_grid/oraagent_grid.log"
2014-05-24 20:24:51.040
[/u01/11.2.0/grid/bin/oraagent.bin(4444)]CRS-5011:Check of resource "+ASM" failed: details at "(:CLSN00006" in "/u01/11.2.0/grid/log/rac02/agent/ohasd/oraagent_grid/oraagent_grid.log"
2014-05-24 20:24:52.156
[crsd(4843)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:24:53.095
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:24:54.194
[crsd(4857)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:24:55.153
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:24:56.236
[crsd(4868)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:24:57.198
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:24:58.306
[crsd(4879)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:24:59.262
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:00.352
[crsd(4890)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:01.306
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:02.402
[crsd(4919)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:03.351
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:04.436
[crsd(4931)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:05.385
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:06.464
[crsd(4942)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:07.422
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:08.501
[crsd(4954)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:09.459
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:10.541
[crsd(4965)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:11.497
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:12.579
[crsd(4976)]CRS-1013:The OCR location in an ASM disk group is inaccessible. Details in /u01/11.2.0/grid/log/rac02/crsd/crsd.log.
2014-05-24 20:25:13.535
[ohasd(4331)]CRS-2765:Resource 'ora.crsd' has failed on server 'rac02'.
2014-05-24 20:25:13.536
[ohasd(4331)]CRS-2771:Maximum restart attempts reached for resource 'ora.crsd'; will not restart.

看一下2节点磁盘组的状态，磁盘的权限是否有问题

如果权限合理，你可以试试手工启动一下ASM