TVS-471 Spin down configuration to save disk space

Discussion about hard drive spin down (standby) feature of NAS.
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TVS-471 Spin down configuration to save disk space

Post by ITEngineer » Mon Aug 01, 2016 6:59 pm

Hi All,

I'm using QNAP TVS-471 to serve as file server, now I wonder how is that possible to configure HDD spin down to reduce electricity use and prolong drive age ?

TVS 471 configuration:
LUN 1: 2x 1 TB 7200 rpm Seagate HDD: QTS 4.2.1 and File server 1
LUN 2: 2x 4 TB 7200 rpm HGST HDD: File server 2 and VMware VMFS data store.


Thanks in advance.

:mrgreen:
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John Henry

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Re: TVS-471 Spin down configuration to save disk space

Post by schumaku » Tue Aug 02, 2016 1:58 am

1. HDD spin-down is an all-or nothing.
2. Not convinced that HDD spin-down does help on the life time.
3. Nothing space to save by using HDD spin-down (subject?)

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Re: TVS-471 Spin down configuration to save disk space

Post by ITEngineer » Tue Aug 02, 2016 6:26 am

schumaku wrote:1. HDD spin-down is an all-or nothing.
2. Not convinced that HDD spin-down does help on the life time.
3. Nothing space to save by using HDD spin-down (subject?)


Ah I see,

So in this case RAID-1, does the other drive turned off when it is not in use ?
eg. streaming one multimedia files from one directory does not need both drives to run hence one is shutdown to save up electricity bill & disk life.

is that correct ?
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Re: TVS-471 Spin down configuration to save disk space

Post by Don » Tue Aug 02, 2016 7:49 am

No. It is all or nothing as already stated.

I believe that spinning up the drives puts more strain on the drive that just keeping it running.
Read the Online Manuals and use the forum search feature before posting.

It is a recommended to use RAID and have external backups. RAID will protect you from disk failure, keep your system running, and data accessible while the disk is replaced and the RAID rebuilt. Backups will allow you to recover data that is lost or corrupted, or from system failure. One does not replace the other.

Submit bugs and feature requests to QNAP via their Helpdesk app.

NAS: TVS-882BR | F/W: 4.3.6.0895 | 40GB | 2 x M.2 SATA RAID 1 (System/VMs) | 4 x M.2 NMVe QM2-4P-384A RAID 5 (Cache) | 5 x 4TB HDD RAID 6 (Data) | 1 x Blu-ray
NAS: TVS-663 | F/W: 4.4.2.1320 | 16GB | 2 x M.2 NMVe QM2-2P RAID 1 (Cache) | 4 x 4TB RAID 5
Apps: Boinc, Squid, DNSMasq, PLEX, iDrive, QVPN, QLMS, MP3fs, HBS, Entware, DLstation, +others

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Re: TVS-471 Spin down configuration to save disk space

Post by ITEngineer » Tue Aug 02, 2016 7:54 am

Hm.. ok, if that's the case,

is it spin down per LUN / RAID group or the whole enclosure ?
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Re: TVS-471 Spin down configuration to save disk space

Post by Don » Tue Aug 02, 2016 9:43 am

ALL DRIVES OR NO DRIVES.
Read the Online Manuals and use the forum search feature before posting.

It is a recommended to use RAID and have external backups. RAID will protect you from disk failure, keep your system running, and data accessible while the disk is replaced and the RAID rebuilt. Backups will allow you to recover data that is lost or corrupted, or from system failure. One does not replace the other.

Submit bugs and feature requests to QNAP via their Helpdesk app.

NAS: TVS-882BR | F/W: 4.3.6.0895 | 40GB | 2 x M.2 SATA RAID 1 (System/VMs) | 4 x M.2 NMVe QM2-4P-384A RAID 5 (Cache) | 5 x 4TB HDD RAID 6 (Data) | 1 x Blu-ray
NAS: TVS-663 | F/W: 4.4.2.1320 | 16GB | 2 x M.2 NMVe QM2-2P RAID 1 (Cache) | 4 x 4TB RAID 5
Apps: Boinc, Squid, DNSMasq, PLEX, iDrive, QVPN, QLMS, MP3fs, HBS, Entware, DLstation, +others

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Re: TVS-471 Spin down configuration to save disk space

Post by ITEngineer » Tue Aug 02, 2016 12:26 pm

What is this for then ?

It's quite useless if the HDD is turned off / spindown entirely but the NAS is still consuming electricity despite small amount ?
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Re: TVS-471 Spin down configuration to save disk space

Post by schumaku » Fri Aug 05, 2016 1:31 pm

ITEngineer wrote:It's quite useless if the HDD is turned off / spindown entirely but the NAS is still consuming electricity despite small amount ?
Because it's useless many NAS owners spend a lot of effort figuring out what processes keep the HDD spinning?

Alternate options are triggering a "Sleep" (ACPI S3) from the Web UI, or shutdown the system. In either case, there is still more or less energy used.

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Re: TVS-471 Spin down configuration to save disk space

Post by ITEngineer » Fri Aug 05, 2016 2:39 pm

schumaku wrote:
ITEngineer wrote:It's quite useless if the HDD is turned off / spindown entirely but the NAS is still consuming electricity despite small amount ?
Because it's useless many NAS owners spend a lot of effort figuring out what processes keep the HDD spinning?

Alternate options are triggering a "Sleep" (ACPI S3) from the Web UI, or shutdown the system. In either case, there is still more or less energy used.


Yes, that does make sense.

Thanks for the explanation and the sharing mate.
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John Henry

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