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S.M.A.R.T. using ESXi


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This is a continuation of some ancient threads:




I like to reopen this topic because, from my point of view, the most relevant limitation using virtualization for runninng XPEnology is the lack of smart monitoring :sad:

Si, I propose a new solution for SMART monitoring using ESXi.


Yes, using Physical-RDMs is possible to read SMART values! :eek:

So the only problem is enable this funtion in XPEnology.




First, read these two pages:


1) FlexRAID using ESXi: http://www.flexraid.com/2014/02/07/stor ... m-vs-vmdk/


Go to point #14 and see the proposed solution for read S.M.A.R.T. info using pRDM: "smartctl --device=sat,auto"


2) Manual of SmartMonTools: https://www.smartmontools.org/browser/t ... rtctl.8.in


Go to point "-d TYPE, --device=TYPE" and see the reason of use this command:


"sat[,auto][,N] - the device type is SCSI to ATA Translation (SAT). This is for ATA disks that have a SCSI to ATA Translation (SAT) Layer (SATL) between the disk and the operating system. SAT defines two ATA PASS THROUGH SCSI commands, one 12 bytes long and the other 16 bytes long. The default is the 16 byte variant which can be overridden with either '-d sat,12' or '-d sat,16'.


If '-d sat,auto' is specified, device type SAT (for ATA/SATA disks) is only used if the SCSI INQUIRY data reports a SATL (VENDOR: "ATA "). Otherwise device type SCSI (for SCSI/SAS disks) is used."




As a proof of concept I do this test on my current XPEnology instance (5.1 running on top of ESXi 5.5 with 4 HD in PHYSICAL RDM)...


XPEnology> smartctl --device=sat,auto -a /dev/sda
smartctl 6.2 (build date May 11 2015) [x86_64-linux-3.10.35] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

Model Family:     Western Digital Red (AF)
Device Model:     WDC WD30EFRX-68EUZN0
Serial Number:    WD-********************
LU WWN Device Id: 5 0014ee 20c7e9792
Firmware Version: 82.00A82
User Capacity:    3,000,592,982,016 bytes [3.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Thu Feb 25 11:00:56 2016 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

SMART STATUS RETURN: incomplete response, ATA output registers missing
SMART overall-health self-assessment test result: PASSED
Warning: This result is based on an Attribute check.

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                       was never started.
                                       Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                       without error or no self-test has ever
                                       been run.
Total time to complete Offline
data collection:                (40380) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                       Auto Offline data collection on/off support.
                                       Suspend Offline collection upon new
                                       Offline surface scan supported.
                                       Self-test supported.
                                       Conveyance Self-test supported.
                                       Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                       power-saving mode.
                                       Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                       General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 405) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x703d) SCT Status supported.
                                       SCT Error Recovery Control supported.
                                       SCT Feature Control supported.
                                       SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
 1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
 3 Spin_Up_Time            0x0027   181   181   021    Pre-fail  Always       -       5908
 4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       6
 5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
 7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
 9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       1169
10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0
11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       6
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       4
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       20
194 Temperature_Celsius     0x0022   117   113   000    Old_age   Always       -       33
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   000    Old_age   Offline      -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged.  [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
   1        0        0  Not_testing
   2        0        0  Not_testing
   3        0        0  Not_testing
   4        0        0  Not_testing
   5        0        0  Not_testing
Selective self-test flags (0x0):
 After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.


So, as XPEnology is using smartctl for read smart values, I suggest to include some support for use this tweak when calling to the command or provide some function for tweak (add new parameters) to the call when the user likes to use some virtual environment.


You agree? :wink:

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