ALM-12015 Partition Filesystem Readonly

Alarm Description

The system checks the partition status every 60 seconds. This alarm is generated when the system detects that a partition to which service directories are mounted enters the read-only mode (due to a bad sector or a faulty file system). The system checks the partition status periodically.

This alarm is cleared when the system detects that the partition to which service directories are mounted exits from the read-only mode (because the file system is restored to read/write mode, the device is removed, or the device is formatted).

Alarm Attributes

Alarm ID	Alarm Severity	Alarm Type	Service Type	Auto Cleared
12015	Major	Physical resource	FusionInsight Manager	Yes

Alarm Parameters

Type	Parameter	Description
Location Information	Source	Specifies the cluster or system for which the alarm is generated.
	ServiceName	Specifies the service for which the alarm is generated.
	RoleName	Specifies the role for which the alarm is generated.
	HostName	Specifies the host for which the alarm is generated.
	DirName	Specifies the directory for which the alarm is generated.
	PartitionName	Specifies the device partition for which the alarm is generated.
Additional Information	Detail	Specifies the details for which the alarm is generated.
Additional Information	Disk serial number	Specifies the serial number of the disk of the device partition for which the alarm is generated.

Impact on the System

Service failure: If a job needs to modify the data on the read-only device partition, the job may fail to run.
Latency: If some components need to synchronize data to the read-only device partition, data synchronization may fail or time out, causing service delay.

Possible Causes

The hard disk is faulty, for example, a bad sector exists.

Handling Procedure

On FusionInsight Manager, choose O&M > Alarm > Alarms, click in the row where the alarm is located.
Obtain HostName and PartitionName from Location. HostName is the node where the alarm is reported, and PartitionName is the partition of the faulty disk.
Contact hardware engineers to check whether the disk is faulty. If the disk is faulty, remove it from the server.
After the disk is removed, alarm ALM-12014 Partition Lost is reported. Handle the alarm. For details, see ALM-12014 Device Partition Lost. After the alarm ALM-12014 Partition Lost is cleared, alarm ALM-12015 Partition Filesystem Readonly is automatically cleared.