Disable HDD Standby

ct85msi · 15. Mai 2017

Hello,

I have a raid 5 array with 3x WD RED 2 TB hard drives.

The problem is that all 3 hard drives enter standby after ~ 30 minutes but I didn`t configured hdparm for them.

CPU Pentium G4560, MB Asus H110M-D D3, UEFI Boot, Debian 8.8, latest OMV.

Code

root@heimdall:~# cat /etc/hdparm.conf
quiet
/dev/disk/by-id/ata-Samsung_SSD_840_PRO_Series_S12PNEAD132250W {
    write_cache = off
}
/dev/disk/by-id/ata-WDC_WD20EFRX-68EUZN0_WD-WCC4M3TTX2YE {
    write_cache = off
}
/dev/disk/by-id/ata-WDC_WD20EFRX-68EUZN0_WD-WCC4M7DL72X6 {
    write_cache = off
}
/dev/disk/by-id/ata-WDC_WD20EFRX-68EUZN0_WD-WCC4M0174426 {
    write_cache = off
}

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Code

Version : 1.2
  Creation Time : Wed May  3 01:26:47 2017
     Raid Level : raid5
     Array Size : 3906766848 (3725.78 GiB 4000.53 GB)
  Used Dev Size : 1953383424 (1862.89 GiB 2000.26 GB)
   Raid Devices : 3
  Total Devices : 3
    Persistence : Superblock is persistent


  Intent Bitmap : Internal


    Update Time : Mon May 15 07:34:44 2017
          State : clean
 Active Devices : 3
Working Devices : 3
 Failed Devices : 0
  Spare Devices : 0


         Layout : left-symmetric
     Chunk Size : 512K


           Name : heimdall:datastore  (local to host heimdall)
           UUID : 78e1ea9e:3ea277ba:2ab5b642:748421e1
         Events : 4732


    Number   Major   Minor   RaidDevice State
       0       8       32        0      active sync   /dev/sdc
       1       8       48        1      active sync   /dev/sdd
       2       8       16        2      active sync   /dev/sdb

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Code

root@heimdall:~# hdparm -C /dev/sdb


/dev/sdb:
 drive state is:  standby
root@heimdall:~# hdparm -C /dev/sdc


/dev/sdc:
 drive state is:  standby
root@heimdall:~# hdparm -C /dev/sdd


/dev/sdd:
 drive state is:  standby

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How can I disable standby ? Or this is done automaticaly from the hard drive`s firmware?

Thanks in advance.

ct85msi · 15. Mai 2017

Found the issue. Two of the reds had different firmware and they parked the head after 8 seconds. After I disabled this, the raid array is online, no more standby.

root@heimdall:~# idle3ctl -g /dev/sdb
Idle3 timer is disabled
root@heimdall:~# idle3ctl -g /dev/sdc
Idle3 timer is disabled
root@heimdall:~# idle3ctl -g /dev/sdd
Idle3 timer is disabled
root@heimdall:~#

Before that, the newer drives /sdb/sdc had the value 138 when I issued idle3ctl command.

ct85msi · 15. Mai 2017

Code

root@heimdall:~# apcaccess status
APC      : 001,045,1059
DATE     : 2017-05-15 18:15:28 +0300
HOSTNAME : heimdall
VERSION  : 3.14.12 (29 March 2014) debian
UPSNAME  : BackUPS500
CABLE    : USB Cable
DRIVER   : USB UPS Driver
UPSMODE  : Stand Alone
STARTTIME: 2017-05-15 17:16:43 +0300
MODEL    : Back-UPS CS 500
STATUS   : ONLINE
LINEV    : 236.0 Volts
LOADPCT  : 7.0 Percent
BCHARGE  : 100.0 Percent
TIMELEFT : 48.0 Minutes
MBATTCHG : 5 Percent
MINTIMEL : 3 Minutes
MAXTIME  : 0 Seconds
OUTPUTV  : 230.0 Volts
SENSE    : Medium
DWAKE    : 0 Seconds
DSHUTD   : 0 Seconds
LOTRANS  : 160.0 Volts
HITRANS  : 260.0 Volts
RETPCT   : 0.0 Percent
ITEMP    : 29.2 C
ALARMDEL : 30 Seconds
BATTV    : 13.5 Volts
LINEFREQ : 50.0 Hz
LASTXFER : Automatic or explicit self test
NUMXFERS : 0
TONBATT  : 0 Seconds
CUMONBATT: 0 Seconds
XOFFBATT : N/A
SELFTEST : NO
STESTI   : None
STATFLAG : 0x05000008
MANDATE  : 2010-07-22
SERIALNO : 4B1030P19891
BATTDATE : 2017-05-12
NOMOUTV  : 230 Volts
NOMINV   : 230 Volts
NOMBATTV : 12.0 Volts
NOMPOWER : 300 Watts
FIRMWARE : 808.q8.I USB FW:q8
END APC  : 2017-05-15 18:15:21 +0300

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With the drives in standby, the LOADPCT was 5%. For 6 watts it doesn`t worth to shorten their lifespan by putting them in standby.

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