ECS: xDoctor: RAP004: Some devices are not accessible, Boot device is not accessible

Summary: There has been a failure detected with the DOM on the reported ECS.

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Symptoms

The status of the DOM has changed from 'awake and running' to another status.

The DOM holds the boot information for the node. If the node is rebooted while there is a DOM failure it may not come back online correctly.

A DOM failure has been detected on the ECS.

Dial Home: 
Please see knowledgebase solution https://support.emc.com/kb/201709.

 Clarify Id: CKM00142601664
 Vendor: EMC
 DeviceType: ElasticCloudStorageG4
 Model: ECS
 SerialNumber: CKM00142601664
 Platform: Intel
 OS: ECS OS
 OS_VER: 2.2.0.0-1196.f7d8051.578
 EmbedLevel: 1
 InternalMaxSize: 0
 Ucode_Ver: 4.4-17
 IP_Address: 169.254.2.2
 AppName: xDoctor4ECS

 SymptomCode: 2000
 Category: Disk
 Severity: CRITICAL
 Status: Warning
 Component: Node
 ComponentID: 169.254.2.2
 SubComponent: Disk
 SubComponentID: DOM
 CallHome: true
 LastTime: 2016-06-23 14:30:02
 CDATA: <![CDATA[DOM Failure on node [169.254.2.2] labeled as device [/dev/sg11: Cannot allocate memory] located in slot [n/a]. The Disk Status is [system_error].]]>

 Description: <![CDATA[DOM Failure]]>
xDoctor: 
 Timestamp    = 2016-05-12_140748
    Category = Health
    Source   = Disk
    Severity = ERROR
    Node     = 169.254.3.1
    Message  = Boot device is not accessible
    Extra    = /dev/sda
    RAP      = RAP004
    Solution = 463067

Cause

There is a failure with the DOM on the reported node.

Resolution

Verify that the issue is still present:

  1. List the disks using cs_hal to find the device ID of the DOM. It should be the first internal drive listed.
# sudo /opt/emc/sbin/iSMART_64 -d /dev/sda

Example output:
sudo /opt/emc/sbin/iSMART_64 -d /dev/sda

************************************************************
* Innodisk iSMART V3.9.7                        2016/03/10 *
************************************************************
[lib_ismart.c][499]open /dev/sde device fail !!
[lib_ismart.c][1389] get_id_table fail !!
  1. Check the status of the DOM using cs_hal. This is found in the "state" field.
Example:
# cs_hal info /dev/sg0 
SCSI disk       : /dev/sg0
block device    : /dev/sda
size (via SCSI) : 29.8182 GB
size (via blk)  : 29.8182 GB
vendor          : ATA
model           : SATADOM-SL 3ME
firmware        : S130
SCSI id         : 2:0:0:0
S/N             : 20140909AAAA94515328
state           : awake and running
RAID            : no
internal        : yes
system disk     : no
VM disk         : no
type            : SSD
volume count    : 2
volume          : /dev/sda1
volume size     : 0.585939 GB
filesystem      : d569fff7-2772-46e7-9dbc-7fd7cfa259f0 (ext3; mounted)
volume          : /dev/sda2
volume size     : 29.2263 GB
filesystem      : no filesystems found
slot name       :
LED             : internal drive; no LED
SMART           : unknown
  1. If the DOM is failed, Dell support can reimage the node so it boots on the SSD instead of the DOM. Open a service request and reference this KB.

Additional Information

Sometimes, depending on the DOM model; Smart output can look like the below. All zero (0) values and no Health percentage are reported. This is considered as a failed DOM as well.  
admin@ecs:/boot>  sudo /opt/emc/sbin/iSMART_64 -d /dev/sdb
192.168.219.1:
************************************************************
* Innodisk iSMART V3.9.7                        2016/03/10 *
************************************************************
Model Name: SATADOM-SL 3ME3
FW Version: S15A19
Serial Number: 20161027AA10521069A4
Capacity: 29.818199 GB
iAnalyzer: Disable
Write Protect: Disable
-------------------------------------------------------------
ID    SMART Attributes                            Value
-------------------------------------------------------------
[09]  Power On Hours                              [0]
[0C]  Power Cycle Count                           [0]
[AA]  Total Bad Block Count                       [0]
[AD]  Erase Count Max.                            [0]
[AD]  Erase Count Avg.                            [0]
[C2]  Temperature                                 [0]
[EB]  Later Bad Block                             [0]
[EB]  Read Block                                  [0]
[EB]  Write Block                                 [0]
[EB]  Erase Block                                 [0]
[EC]  Unstable Power Count                        [0]
-------------------------------------------------------------
  Read & Write
-------------------------------------------------------------
Sequential Read  = 0%
Random Read      = 0%
Sequential Write = 0%
Random Write     = 0%
-------------------------------------------------------------
Sequential
-------------------------------------------------------------
Size    Read    Write
  8MB    0%      0%
  4MB    0%      0%
  1MB    0%      0%
128KB    0%      0%
64KB    0%      0%
32KB    0%      0%
-------------------------------------------------------------
Random
-------------------------------------------------------------
Size    Read    Write
64KB    0%      0%
32KB    0%      0%
16KB    0%      0%
  8KB    0%      0%
  4KB    0%      0%
Checking the disk label: 
admin@ecs:/boot> sudo parted /dev/sdb print
Error: /dev/sdb: unrecognised disk label
Model: ATA SATADOM-SL 3ME3 (scsi)
Disk /dev/sdb: 32.0GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

Affected Products

ECS Appliance

Products

ECS Appliance
Article Properties
Article Number: 000061425
Article Type: Solution
Last Modified: 07 Oct 2025
Version:  6
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