RAID hot spares

  • Thread starter Thread starter Tom Del Rosso
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Tom Del Rosso

Can you confirm something for me? I'd assume that a hot spare would stay
powered-down until it's needed, so it would not get any wear-and-tear.
Correct?
 
Tom Del Rosso said:
Can you confirm something for me? I'd assume that a hot spare would
stay powered-down until it's needed, so it would not get any wear-and-tear.
Correct?
Click to expand...

Nope, no need to keep it powered down for that reason.
 
Rod Speed said:
Nope, no need to keep it powered down for that reason.
Click to expand...

Regardless of the reason, do RAID controllers generally keep them powered
down?

Also, the time it spins is the time it spends at elevated temp, and when
spinning it is more vulnerable to shock, no?
 
Tom Del Rosso said:
Regardless of the reason, do RAID controllers generally keep them
powered down?

Also, the time it spins is the time it spends at elevated temp, and
when spinning it is more vulnerable to shock, no?
Click to expand...
 
Regardless of the reason, do RAID controllers generally keep them powered
down?
Click to expand...

RAID controllers usually do not care. If it is software RAID
the OS can do it optionally.
Also, the time it spins is the time it spends at elevated temp, and when
spinning it is more vulnerable to shock, no?
Click to expand...

Yes. But that does not cause real problems. Also the elevated
temperature is not that critically. Seeking draws much more power
than spinning.

Arno
 
RAID controllers usually do not care.
Click to expand...

http://www.google.com/search?source...GGLG,GGLG:2006-23,GGLG:en&q=define:+hot+spare

"
A RAID storage feature that allows a spare drive to be configured
online for automatic reconstruction in the event of a disk failure.
https://iomega-eu-en.custhelp.com/cgi-bin/iomega_eu_en.cfg/php/enduser/std_adp.php

a backup component (eg, disk or controller) that is online
and available should the primary component go down.
www.raidstorage.uk.com/glossary.html

A spare hard drive will automatically be used to re-
place the failed member of a redundant disk array.
www.usbman.com/glossarycomputerterms.htm

In RAID systems, a spare drive in the disk array that is configured
as a backup for rebuilding data in the event another drive fails.
www.mosaictec.com/storage/storage_terms.htm

"

I'd be inclined to say that those Raid contollers of yours are broken, babblebot.
If it is software RAID the OS can do it optionally.
Click to expand...

With that little robot pushing the Power button, babblebot?

That depends on whether the drive does on- or off-platter head parking.
Yes. But that does not cause real problems.
Also the elevated temperature is not that critically.
Click to expand...
Seeking draws much more power
Click to expand...
than spinning.
Click to expand...

And some drives in the past got stinking hot. just doing that.
 
NO !!!
No, All raid controllers I'm aware of spin up the drive and have it ready to
use.
This would be a questions for Segate or Maxtor but I'd guess that a hot
spare has parked heads. Since it's not active, the heads don't need to move.
I wouldn't worry much about shock to a hot spare, if the spare is damaged by
shock, the other active raid drives are probably going to be even more
damaged.
 
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