Critical Event Descriptions

Related Topics

The following reference provides more information about events with a critical priority, shown with this icon in the Event Log.

Critical Event Type and Sense Key/ASC/ASCQ

Description/Action

Event 1001 - Channel failed
Sense key/ASC/ASCQ: 6/3F/C3

Description: The controller failed a channel, and will not access drives on this channel any more. The FRU Group Qualifier (byte 26) in the sense data will indicate the 1-relative channel number of the failed channel. This condition is typically caused by a drive ignoring SCSI protocol on one of the controller's destination channels. The controller typically fails a channel if it issued a reset on a channel, and it continued to see drives ignore the SCSI Bus Reset on this channel.

Action: Select the Recovery Guru to obtain the "Failed Drive SCSI Channel" recovery procedure. Contact your customer support representative to complete this procedure.

Event 1010 - Impending drive failure (PFA) detected
Sense key/ASC/ASCQ: 6/5D/80

Description: A drive has reported that a failure prediction threshold has been exceeded. This indicates that the drive may fail within 24 hours. Select the Recovery Guru to obtain the recovery procedure.

Action: Select the Recovery Guru to obtain the "Impending Drive Failure" recovery procedure.

Event 1015 - Incorrect mode parameters set on drive
Sense key/ASC/ASCQ: 6/3F/BD

Description: The controller was unable to query the drive for its current critical mode page settings, or was unable to change these to the correct setting. Currently, this indicates the Qerr bit is set incorrectly on the drive specified in the FRU field of the Request Sense data.

Action: The controller has not failed yet. Contact your customer support representative for instructions on recovering from this failure.

Event 1207 - Fibre channel link errors - threshold exceeded
Sense key/ASC/ASCQ: None

Description: Invalid characters have been detected in the Fibre channel signal. Possible causes for the error are a degraded laser in a gigabit interface connector (GBIC) or media interface adapter (MIA), damaged or faulty Fibre channel cables, or poor cable connections between components on the loop.

Action: In the main Subsystem Management Window, select Help >> Recovery Procedures. Select "Fibre Channel Link Errors - Threshold Exceeded" for more information about recovering from this failure.

Event 150E - Controller loopback diagnostics failed
Sense key/ASC/ASCQ: None

Description: The controller can't initialize the drive-side Fibre channel loops. A diagnostic has been run identifying a controller problem and the controller has been placed offline. This event will only occur on certain controller models.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 202E - Read drive error during interrupted write
Sense key/ASC/ASCQ: 3/11/8A

Description: A media error has occurred on a read operation during interrupted write processing.

Action: Select the Recovery Guru to obtain the "Unrecovered Interrupted Write" recovery procedure. Contact your customer support representative to complete this procedure.

Event 2109 - Controller cache not enabled - cache sizes do not match
Sense key/ASC/ASCQ: 6/A1/00

Description: The controller will not allow mirroring to be enabled if the alternate controller's cache size is different. Make sure that both controllers have the same cache size.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 210C - Controller cache battery failed
Sense key/ASC/ASCQ: 6/0C/80

Description: The controller has detected that the battery is (1) not physically present, (2) it is fully discharged, or (3) it has reached its expiration date.

Action: Select the Recovery Guru to obtain the "Failed Battery Canister" recovery procedure.

Event 210E - Controller cache memory recovery failed after power cycle or reset
Sense key/ASC/ASCQ: 6/0C/81

Description: Recovery from a Data Cache error was unsuccessful. User data may have been lost.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 2110 - Controller cache memory initialization failed
Sense key/ASC/ASCQ: 6/40/81

Description: The controller has detected the failure of an internal controller component (RAID Buffer). This failure may have been detected during operation as well as during an on-board diagnostic routine.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 2113 - Controller cache battery nearing expiration
Sense key/ASC/ASCQ: 6/3F/D9

Description: The cache battery is within the specified number of weeks of failing.

Action: Select the Recovery Guru to obtain the "Battery Nearing Expiration" recovery procedure.

Event 2229 - Drive failed by controller
Sense key/ASC/ASCQ: None

Description: The controller has failed a drive because of a problem with the drive.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the procedures to correct the failure.

Event 222D - Drive manually failed
Sense key/ASC/ASCQ: 6/3F/87

Description: The drive was manually failed by a user.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 2247 - Data lost on logical drive during unrecovered interrupted write
Sense key/ASC/ASCQ: 6/3F/EB

Description: An error has occurred during interrupted write processing during the start-of-day routine causing the logical drive to transition to the failed state.

Action: Select the Recovery Guru to obtain the "Unrecovered Interrupted Write" recovery procedure. Contact your customer support representative to complete this procedure.

Event 2248 - Drive failed - write failure
Sense key/ASC/ASCQ: 6/3F/80

Description: The drive failed a write command to it. The drive will be marked failed.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 2249 - Drive capacity less than minimum
Sense key/ASC/ASCQ: 6/3F/8B

Description: During drive replacement, the capacity of the drive is not large enough to support all the logical drives that must be reconstructed on it.

Action: Replace the drive with a larger capacity drive.

Event 224A - Drive has wrong block size
Sense key/ASC/ASCQ: 6/3F/8C

Description: The drive's block size does not match that of the other drives in the logical drive. The drive will be marked failed.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 224B - Drive failed - initialization failure
Sense key/ASC/ASCQ: 6/3F/86

Description: The drive failed either a Format Unit command, or a Write operation (issued when a logical drive was initialized). The drive will be marked failed.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 224D - Drive failed - no response at start of day
Sense key/ASC/ASCQ: 6/3F/85

Description: The drive failed a Read Capacity or Read command during the start-of-day routine. The controller was unable to read the configuration information stored on it. The drive will be marked failed.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 224E - Drive failed - initialization/reconstruction failure
Sense key/ASC/ASCQ: 6/3F/82

Description: The (previously-failed) drive was marked failed because either (1) the drive failed a Format Unit command issued to it, or (2) the reconstruction on the drive failed due to the controller being unable to restore it (for example, an error occurring on another drive required for reconstruction).

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 2250 - Logical Drive failure (3F E0)
Sense key/ASC/ASCQ: 6/3F/E0

Description: The controller has marked the logical drive failed. User data and/or redundancy (parity) can no longer be maintained to ensure availability. The most likely cause is the failure of a single drive in non-redundant configurations or a second drive in a configuration protected by one drive.

Action: Select the Recovery Guru to obtain the "Failed Logical Drive - Drive Failure" recovery procedure.

Event 2251 - Drive failed - reconstruction failure
Sense key/ASC/ASCQ: 6/3F/8E

Description: A drive failed due to a reconstruction failure during the start-of-day routine.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 2252 - Drive marked offline during interrupted write
Sense key/ASC/ASCQ: 6/3F/98

Description: An error has occurred during interrupted write processing causing the logical drive to be marked failed. Drives in the array that did not experience the read error will transition to the Offline state and log this error.

Action: Select the Recovery Guru to obtain the "Unrecovered Interrupted Write" recovery procedure. Contact your customer support representative to complete this procedure.

Event 2254 - Redundancy (parity) and data mismatch was detected
Sense key/ASC/ASCQ: 6/8E/01

Description: The controller detected inconsistent redundancy (parity)/data during a parity verification.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 2255 - Logical Drive definition incompatible with ALT mode - ALT disabled
Sense key/ASC/ASCQ: 6/91/3B

Description: Auto-LUN Transfer (ALT) only works with arrays that have only one logical drive defined. There are currently arrays on the storage subsystem that have more than one logical drive defined; therefore, ALT mode has been disabled. The controller will operate in normal redundant controller mode and if there is a problem, will transfer all logical drives on an array instead of transferring individual logical drives.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 2602 - Automatic controller firmware synchronization failed
Sense key/ASC/ASCQ: 02/04/81

Description: The versions of firmware on the redundant controllers are not the same because the automatic controller firmware synchronization failed. Controllers with an incompatible version of firmware may cause unexpected results.

Action: Try the firmware download again. If the problem persists, contact your Customer Support Representative.

Event 2801 - Storage Subsystem running on UPS battery
Sense key/ASC/ASCQ: 6/3F/C8

Description: The Uninterruptible Power Source (UPS) has indicated that AC power is no longer present and the UPS has switched to standby power. While there is no immediate cause for concern, you should save your data frequently, in case the battery is suddenly depleted.

Action: Select the Recovery Guru to obtain the "Lost AC Power" recovery procedure.

Event 2803 - UPS battery - two minutes to failure
Sense key/ASC/ASCQ: 6/3F/C9

Description: The Uninterruptible Power Source (UPS) has indicated that its standby power source is nearing depletion.

Action: You should take actions to stop I/O activity to the controller. Normally, the controller will change from a write-back caching mode to a write-through mode.

Event 2804 - UPS battery failed
Sense key/ASC/ASCQ: None

Description: The UPS battery has failed.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 2807 - Environmental card failed
Sense key/ASC/ASCQ: None

Description: An environmental card has failed.

Action: Select the Recovery Guru to obtain the "Failed Environmental Card Canister" recovery procedure.

Event 2808 - Enclosure ID not unique
Sense key/ASC/ASCQ: 6/98/01

Description: The controller has determined that there are multiple drive enclosures with the same ID selected. Make sure that each drive enclosure has a unique ID setting.

Action: Select the Recovery Guru to obtain the "Enclosure ID Conflict" recovery procedure.

Event 280A - Controller enclosure component missing
Sense key/ASC/ASCQ: 6/3F/C7

Description: A component other than a controller is missing in the controller enclosure (for example, fan, power supply, or battery). The FRU codes indicate the faulty component.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 280B - Controller enclosure component failed
Sense key/ASC/ASCQ: 6/3F/C7

Description: A component other than a controller has failed in the controller enclosure (for example, fan, power supply, battery), or an over-temperature condition has occurred. The FRU codes indicate the faulty component.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 280D - Drive enclosure component failed
Sense key/ASC/ASCQ: 6/3F/C7

Description: A component other than a drive has failed in the drive enclosure (for example, fan, power supply, battery), or an over-temperature condition has occurred. The FRU codes indicate the faulty component.

Action: Select the Recovery Guru to obtain the recovery procedure and follow the instructions to correct the failure.

Event 280E - Standby power source not fully charged
Sense key/ASC/ASCQ: 6/3F/CA

Description: The Uninterruptible Power Source (UPS) has indicated that its standby power source is not at full capacity.

Event 280F - Environmental card - loss of communication
Sense key/ASC/ASCQ: 6/E0/20

Description: Communication has been lost to one of the dual environmental card canisters in a drive enclosure. The drive enclosure has only one I/O path available.

Action: Select the Recovery Guru to obtain the "Environmental Card Canister - Loss of Communication" recovery procedure.

Event 2813 - Mini-hub canister failed
Sense key/ASC/ASCQ: 6/3F/C7

Description: Communications with the mini-hub canister has been lost. This may be the result of a mini-hub canister failure, a controller failure, or a failure in an internal backplane communications board. If there is only one mini-hub failure, the storage subsystem is still operational but a second mini-hub failure could result in the failure of the affected enclosures.

Action: Select the Recovery Guru to obtain the "Failed Mini-Hub Canister" recovery procedure.

Event 2815 - GBIC failed
Sense key/ASC/ASCQ: None

Description: A Gigabit Interface Converter (GBIC) on either the controller enclosure or the drive enclosure has failed. If there is only one GBIC failure, the storage subsystem is still operational but a second GBIC failure could result in the failure of the affected enclosures.

Action: Select the Recovery Guru to obtain the "Failed GBIC" recovery procedure.

Event 2816 - Enclosure ID Conflict - duplicate ID's across drive enclosures
Sense key/ASC/ASCQ: 6/98/01

Description: Two or more drive enclosures are using the same enclosure identification number.

Action: Select the Recovery Guru to obtain the "Enclosure ID Conflict" recovery procedure.

Event 2818 - Enclosure ID mismatch - duplicate ID's in the same drive enclosure
Sense key/ASC/ASCQ: 6/98/02

Description: A drive enclosure in the storage subsystem contains environmental cards with different enclosure identification numbers.

Action: Select the Recovery Guru to obtain the "Enclosure ID Mismatch" recovery procedure.

Event 281B - Nominal temperature exceeded
Sense key/ASC/ASCQ: 6/98/03

Description: The nominal temperature of the enclosure has been exceeded. Either a fan has failed or the temperature of the room is too high. If the temperature of the enclosure continues to rise, the affected enclosure may automatically shut down. Fix the problem immediately, before it becomes more serious. The automatic shutdown conditions depend on the model of the enclosure.

Action: Select the Recovery Guru to obtain the "Nominal Temperature Exceeded" recovery procedure.

Event 281C- Maximum temperature exceeded
Sense key/ASC/ASCQ: 6/3F/C6

Description: The maximum temperature of the enclosure has been exceeded. Either a fan has failed or the temperature of the room is too high. This condition is critical and may cause the enclosure to shut down if you do not fix the problem immediately. The automatic shutdown conditions depend on the model of the enclosure.

Action: Select the Recovery Guru to obtain the "Maximum Temperature Exceeded" recovery procedure.

Event 281D - Temperature sensor removed
Sense key/ASC/ASCQ: 6/98/03

Description: A canister containing a temperature sensor has been removed from the storage subsystem.

Action: Replace the canister as soon as possible. Select the Recovery Guru to obtain the "Failed or Removed Fan Canister" recovery procedure.

Event 281E - Environmental card firmware mismatch
Sense key/ASC/ASCQ: 6/98/03

Description: A drive enclosure in the storage subsystem contains Environmental Cards with different versions of firmware. Environmental Cards in the same drive enclosure must have the same version firmware. If you do not have a replacement card, call your customer support representative to perform the firmware download.

Action: Select the Recovery Guru to obtain the "Environmental Card Firmware Version Mismatch" recovery procedure.

Event 3019 - Logical Drive ownership changed due to failover
Sense key/ASC/ASCQ: None

Description: The multi-path driver software has changed ownership of the logical drives to the other controller because it could not access the logical drives on the particular path.

Action: Select the Recovery Guru to obtain the "Logical Drive Not on Preferred Path" recovery procedure.

Event 5005 - Place controller offline
Sense key/ASC/ASCQ: None

Description: The controller was placed offline. This could be caused by the controller failing a diagnostic test. (The diagnostics are initiated internally by the controller or by the Controller >> Run Diagnostics menu option.) Or the controller was manually placed Offline using the Controller >> Place Offline menu option.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 5602 - This controller's alternate failed - timeout waiting for results
Sense key/ASC/ASCQ: None

Description: This controller initiated diagnostics on the alternate controller but did not receive a reply indicating that the diagnostics completed. The alternate controller in this pair has been placed offline.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 560B - ctlrDiag task cannot obtain Mode Select lock
Sense key/ASC/ASCQ: None

Description: This controller was attempting to run diagnostics and could not secure the test area from other storage subsystem operations. The diagnostics were canceled.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 560C - ctlrDiag task on controller's alternate cannot obtain Mode Select lock
Sense key/ASC/ASCQ: None

Description: The alternate controller in this pair was attempting to run diagnostics and could not secure the test area from other storage subsystem operations. The diagnostics were canceled.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 560D - Diagnostics read test failed on controller
Sense key/ASC/ASCQ: None

Description: While running diagnostics, the controller has detected that the information received doesn't match the expected return for the test. This could indicate that I/O isn't completing or that there is a mismatch in the data being read. The controller was placed offline as result of this failure.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 560E - This controller's alternate failed diagnostics read test
Sense key/ASC/ASCQ: None

Description: While running diagnostics, this controller's alternate detected that the information received doesn't match the expected return for the test. This could indicate that I/O isn't completing or that there is a mismatch in the data being read. The alternate controller in this pair was placed offline.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 560F - Diagnostics write test failed on controller
Sense key/ASC/ASCQ: None

Description: While running diagnostics, the controller was unable to write data to the test area. This could indicate that I/O isn't completing or that there is a mismatch in the data being written. The controller was placed offline.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 5610 - This controller's alternate failed diagnostics write test
Sense key/ASC/ASCQ: None

Description: While running diagnostics, this controller's alternate was unable to write data to the test area. This could indicate that I/O isn't completing or that there is a mismatch in the data being written. The alternate controller in this pair was placed offline.

Action: Select the Recovery Guru to obtain the "Offline Controller" recovery procedure. Use this procedure to replace the controller.

Event 5616 - Diagnostics rejected - configuration error on controller
Sense key/ASC/ASCQ: None

Description: This controller was attempting to run diagnostics and could not create the test area necessary for the completion of the tests. The diagnostics were canceled.

Action: Contact your customer support representative for instructions on recovering from this failure.

Event 5617 - Diagnostics rejected - configuration error on controller's alternate
Sense key/ASC/ASCQ: None

Description: This controller's alternate was attempting to run diagnostics and could not create the test area necessary for the completion of the tests. The diagnostics were canceled.

Action: Contact your customer support representative for instructions on recovering from this failure.

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