Talk:Power-up in standby

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Merge proposal[edit]

As there is few links to this page and it is only a feature of Hard Drive Spin-up, I would suggest to embed this in the section Staggered spin-up of the Spin-up page. -- marc (talk) 07:19, 17 June 2009 (UTC)

Firmware bug for WD drives[edit]

Can someone mention about the firmware bug for WD drives?

http://hdat2.getphpbb.com/hard-drive-general-f2/how-to-disable-power-up-in-standby-feature-set-t90.html

http://forum.hddguru.com/how-flash-firmware-for-wd3200js-hard-drive-t9666.html —Preceding unsigned comment added by 99.243.207.3 (talk) 08:59, 10 March 2010 (UTC)

Conserve power?[edit]

I have never heard that this feature exists to conserve power (source?). What it is used for is to reduce peak power, so that not all disks connected to a single power supply spin up at the same time. For a 10 disk array this can reduce peak power uage from 250 watts (10*25) to 25 watts for example.

In some data centres applications and areas such as CCTV storage, powering down unused disks to conserve power is very important. We are doing considerable work on this right now. Andy Henson, Wavestore Ltd. 109.231.215.34 (talk) 09:22, 2 September 2014 (UTC)

Powering down an unused disk has nothing to do with Power-up in standby (PUIS). When the system is running, you don't need PUIS to power down a disk. PUIS just prevents the disk to spin up before the system gains control over it. Petr Matas 09:54, 7 September 2014 (UTC)