Qnap Disks in standby but lights are still on.

Discussion about hard drive spin down (standby) feature of NAS.
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file-moon
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Qnap Disks in standby but lights are still on.

Post by file-moon » Wed Sep 04, 2019 3:08 pm

Hi,


As far as I understand manual for every disk in standby mode disk indicator light should be off.
I do have some disks in standby mode but all hdd indicators are always on.

# hdparm -C /dev/sda
/dev/sda:
drive state is: active/idle

# hdparm -C /dev/sdb
/dev/sdb:
drive state is: active/idle

# hdparm -C /dev/sdc
/dev/sdc:
drive state is: standby

# hdparm -C /dev/sdd
/dev/sdd:
drive state is: standby

# hdparm -C /dev/sde
/dev/sde:
drive state is: standby

# hdparm -C /dev/sdf
/dev/sdf:
drive state is: standby

# hdparm -C /dev/sdg
/dev/sdg:
drive state is: active/idle

# hdparm -C /dev/sdh
/dev/sdh:
drive state is: active/idle


Am I missing something?


Regards Chris

P3R
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Re: Qnap Disks in standby but lights are still on.

Post by P3R » Wed Sep 04, 2019 4:00 pm

You don't tell us what disk models you use (nor what QTS version and build is running on what NAS model) so we can only speculate but a wild guess is that some disks have spun down on their own.

As far as I know, if it's the Qnap that spin the disks down it's all or nothing. They will all be set to standby and the disk lights (all of them) will go out.
RAID have never ever been a replacement for backups. Without backups on a different system (preferably placed at another site), you will eventually lose data!

A non-RAID configuration (including RAID 0, which isn't really RAID) with a backup on a separate media protects your data far better than any RAID-volume without backup.

All data storage consists of both the primary storage and the backups. It's your money and your data, spend the storage budget wisely or pay with your data!

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