raid.read events

Contributors

raid.read.cksum.blk.err

Deprecated

Deprecated as of version 9.9.1 because this EMS does not appropriately describe the checksum block error.

Severity

NOTICE

Description

This message occurs when the system detects a checksum block media error in an advanced zoned checksums(AZCS) RAID group during a read operation. Data ONTAP® takes appropriate recovery actions. Other events describe those actions.

Corrective Action

(None).

Syslog Message

Checksum block read error on %s%s for blocks [#%llu - #%llu] during RAID group I/O.

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Information about the disk object, including disk name, path, shelf, bay, serial number, vendor, model, RPM, and carrier serial number.
blockNum (LONGINT): First physical disk block number containing the error.
LblockNum (LONGINT): Last physical disk block number containing the error.

raid.read.cksum.blk.notAvail

Severity

NOTICE

Description

This message occurs when the system detects a checksum block media error in an advanced zoned checksums(AZCS) RAID group during a read operation. As a result checksum information is not available. Data ONTAP® takes appropriate recovery actions to reconstruct the block. Other events describe those actions.

Corrective Action

(None).

Syslog Message

Checksum block is not available on %s%s for blocks [#%llu - #%llu] during RAID group I/O.

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Information about the disk object, including disk name, path, shelf, bay, serial number, vendor, model, RPM, and carrier serial number.
blockNum (LONGINT): First physical disk block number containing the error.
LblockNum (LONGINT): Last physical disk block number containing the error.

raid.read.cksum.bno

Severity

NOTICE

Description

This message occurs when the system detects a block number mismatch during a read operation. The expected Virtual Block Number (VBN)/Disk Block Number (DBN) is not the same as the stored VBN/DBN from the checksum entry, indicating that the block is read from the wrong location. Data ONTAP® makes appropriate recovery actions. Other events describe those actions.

Corrective Action

(None).

Syslog Message

Block number mismatch on %s%s: stored_dbn = %u, expected_dbn = %llu; stored_vbn = %llu, expected_vbn = %llu during a read operation.

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Information about the disk object, including disk name, path, shelf, bay, serial number, vendor, model, RPM, and carrier serial number.
stored_dbn (INT): Physical disk block number stored in the checksum entry.
expected_dbn (LONGINT): Expected physical disk block number.
stored_vbn (LONGINT): Volume block number stored in the checksum entry.
expected_vbn (LONGINT): Expected volume block number.

raid.read.cksum.embed

Severity

NOTICE

Description

This message occurs when the system detects an invalid checksum entry during a read operation. The embedded checksum computed over the checksum entry do not match, indicating the corruption of the checksum entry. Data ONTAP® makes appropriate recovery actions. Other events describe those actions.

Corrective Action

(None).

Syslog Message

Invalid checksum entry on %s%s, block #%llu, during a read operation.

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Information about the disk object, including disk name, path, shelf, bay, serial number, vendor, model, RPM, and carrier serial number.
blockNum (LONGINT): Physical disk block number containing the error.

raid.read.cksum.err

Severity

NOTICE

Description

This message occurs when the system detects a checksum error during a read operation. The checksum computed does not match the stored checksum, indicating that the block is corrupted. Data ONTAP® makes appropriate recovery actions. Other events describe those actions.

Corrective Action

(None).

Syslog Message

Checksum error on %s%s, block #%llu.

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Information about the disk object, including disk name, path, shelf, bay, serial number, vendor, model, RPM, and carrier serial number.
blockNum (LONGINT): Physical block number containing the error.

raid.read.cksum.zero

Severity

NOTICE

Description

This message occurs when the system detects an empty checksum entry during a read operation. The checksum entry is zeroed, but the corresponding block is not zeroed. Data ONTAP® makes appropriate recovery actions. Other events describe those actions.

Corrective Action

(None).

Syslog Message

Empty checksum entry for non-zeroed block on %s%s, block #%llu, during a read operation.

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Information about the disk object, including disk name, path, shelf, bay, serial number, vendor, model, RPM, and carrier serial number.
blockNum (LONGINT): Physical disk block number containing the error.

raid.read.media.err

Severity

NOTICE

Description

This message occurs when rg i/o detects a single-disk medium error

Corrective Action

(None).

Syslog Message

Read error on %s%s, block #%llu

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Formatted information of disk object that contains the error.
blockNum (LONGINT): The physical block number containing the error.
shelf (STRING): Shelf identifier where the disk is located
bay (STRING): Disk bay within the shelf where disk is located
vendor (STRING): Name of the vendor of the disk
model (STRING): Model string of the disk drive
firmware_revision (STRING): Firmware revision number of the disk
serialno (STRING): Serial number of the disk
disk_type (INT): Type of disk drive
disk_rpm (STRING): Rotational speed of disk in RPM
carrier (STRING): Unique ID of the carrier in which the disk is installed.
site (STRING): For a MetroCluster(tm) configuration, indicates the site {Local|Remote} where the disk is located. For non-MetroCluster configurations, site is 'Local'.

raid.read.media.recommend.reassign.err

Severity

NOTICE

Description

This message occurs when rg i/o detects a single-disk recommend reassign error

Corrective Action

(None).

Syslog Message

Block recommended for reassignment on %s%s, block #%llu

Parameters

owner (STRING): Owner of the affected aggregate.
disk_info (STRING): Formatted information of the disk object that contains the error.
blockNum (LONGINT): The physical block number containing the error.
shelf (STRING): Shelf identifier where the disk is located
bay (STRING): Disk bay within the shelf where disk is located
vendor (STRING): Name of the vendor of the disk
model (STRING): Model string of the disk drive
firmware_revision (STRING): Firmware revision number of the disk
serialno (STRING): Serial number of the disk
disk_type (INT): Type of disk drive
disk_rpm (STRING): Rotational speed of disk in RPM
carrier (STRING): Unique ID of the carrier in which the disk is installed.
site (STRING): For a MetroCluster(tm) configuration, indicates the site {Local|Remote} where the disk is located. For non-MetroCluster configurations, site is 'Local'.