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Knowledge Base

The safety mechanism of the Ext2 file system causes the host un-responding

Publication Date:  2012-11-05  |   Views:  202  |   Downloads:  0  |   Author:  c00230043  |   Document ID:  EKB1000018953

Contents

Issue Description

Product and version:
S5500T V100R001 V100R002
S5600T V100R001 V100R002
S5800T V100R001 V100R002
S6800T V100R001 V100R002
The array connects the host normally, map the LUN to the Kylin host. Create the ext2 file system at he mapped LUN and mount successfully, when we copy files to the catalog of the mounted object, the host breakdowns immediately.

Alarm Information

None

Handling Process

After the host has broken-down, plug out and in the power supply, then restart. After the system has run normally, execute the following operations:
1. Create the file system
Command: “mkfs.ext3 /dev/sdX”, where “sdX” denotes the disk mark which is identified by the Operating System. You can also use this command “mkfs -t ext3 /dev/sdX” to create the file system.
2. Mount the file
Command: “mount /dev/sdX /mnt”.

Root Cause

It’s the problem of the ext2 file system in the Kylin, it will cause the host be broken-down while there are safety factors in the ext2 file system.

Suggestions

In the Kylin Linux 3 Operating System, the ext2 has the breakdown risk, so we suggest the Kylin engineer use the ext3 or some other file systems to substitute the ext2 file system. If there is the requirement to use the ext2 file system, you can contact the Kylin after-sales service engineer.