Shulou(Shulou.com)05/31 Report--

This article will explain in detail what to do about the downtime of a node in rac caused by dismount in asm. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

Asm log

/ u01/app/grid/diag/asm/+asm/+ASM1/trace

Thu Jul 30 02:10:46 2015 WARNING: Waited 15 secs for write IO to PST disk 0 in group 1.

WARNING: Waited 15 secs for write IO to PST disk 1 in group 1.

WARNING: Waited 15 secs for write IO to PST disk 2 in group 1.

WARNING: Waited 15 secs for write IO to PST disk 0 in group 1.

WARNING: Waited 15 secs for write IO to PST disk 1 in group 1.

WARNING: Waited 15 secs for write IO to PST disk 2 in group 1.

Thu Jul 30 02:10:47 2015 NOTE: process _ b000_+asm1 (38695) initiating offline of disk 0.3915941304 (DATA2_0000) with mask 0x7e in group 1

NOTE: process _ b000_+asm1 (38695) initiating offline of disk 1.3915941302 (DATA2_0001) with mask 0x7e in group 1

NOTE: process _ b000_+asm1 (38695) initiating offline of disk 2.3915941303 (DATA2_0002) with mask 0x7e in group 1 NOTE: checking PST: grp = 1

GMON checking disk modes for group 1 at 12 for pid 28, osid 38695

ERROR: no read quorum in group: required 2, found 0 disks

Dirty Detach Reconfiguration complete Thu Jul 30 02:10:47 2015

WARNING: dirty detached from domain 1

NOTE: cache dismounted group 1/0xB368755B (DATA2) alter diskgroup DATA2 dismount force / * ASM SERVER:3009967451 * /

Thu Jul 30 02:11:24 2015 NOTE: Instance updated compatible.asm to 11.2.0.0.0 for grp 1

SUCCESS: diskgroup DATA2 was mounted

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