What's it called when a computer saves to two HDD's simultaneously - SV650.org

Bluepete · 15-09-15, 07:42 PM

I've got millions of photos saved on one external HDD. I worry that I'll lose them, so I want to save all work from now on onto two disks simultaneously, ie, both disks are the same.

For the life of me, I can't figure out what to search for on Google or how to do it.

I'm on a reasonably fast Win.10 machine.

Please help!

Pete

Mark_h · 15-09-15, 07:43 PM

The full monty is a raid array. For home use there are various free apps to sync betwen two drives.

PyroUK · 15-09-15, 08:22 PM

You are looking for a RAID 1 configuration there Pete.

Do you have a tower or laptop?

If it's a tower can it hold multiple HDD's in the bays?

DJ123 · 15-09-15, 09:02 PM

Raid 1, or mirror raid. Most midrange motherboards have this option on board. Alternatively you can install a raid controller card

Teejayexc · 15-09-15, 09:35 PM

Does this help Pete?

http://www.pcworld.com/article/132877/RAID.html

Bluepete · 16-09-15, 02:37 AM

That's it! Cheers all.

Pete

16-09-15, 07:49 AM

I have a few NAS devices, made by synology. I have western digital red drives (purportedly specifically for NAS devices). Im very pleased with them.
I spent a long time determining which to go for and my requirements will probably not be the same as yours but I would recommend them.

timwilky · 16-09-15, 09:29 AM

Pete.

Think how you want to preserve your photos.

In my case, I have them within a gallery app on one of my internet servers. This is backed upto my RAID 5 nas daily, and I back up the nas to cheap secondary nas on a weekly basis. The secondary lives in the garage when I am not using it.

Obviously it is not just photos but anything I want to keep.

I have no backup options for my hosted internet server, therefore I need to backup into the home nas. But the danger is I loose the home nas for some reason or files on it become corrupted. The secondary nas holds backups, not simply a synced copy of the primary.

After all you do not want a file corruption or inadvertent change to propagate. You delete it on raid storage it is still gone despite there once being two copies. Raid protects you slightly from hardware failure. But not user stupidity.

ophic · 16-09-15, 09:51 AM

Quote:

Originally Posted by timwilky

After all you do not want a file corruption or inadvertent change to propagate. You delete it on raid storage it is still gone despite there once being two copies. Raid protects you slightly from hardware failure. But not user stupidity.

For this reason it's often better to have a 2nd disk as an overnight backup, rather than a RAID.

Bibio · 17-09-15, 02:00 PM

depends on how many gb/tb we are talking. it might be better to back up to dvd/br then file it away.

15-09-15, 07:42 PM	#1
Bluepete Member Mega Poster Join Date: Sep 2005 Location: Ex motorcyclist Posts: 1,961	What's it called when a computer saves to two HDD's simultaneously I've got millions of photos saved on one external HDD. I worry that I'll lose them, so I want to save all work from now on onto two disks simultaneously, ie, both disks are the same. For the life of me, I can't figure out what to search for on Google or how to do it. I'm on a reasonably fast Win.10 machine. Please help! Pete __________________ https://www.facebook.com/pete.philli...04?ref=tn_tnmn

15-09-15, 07:43 PM	#2
Mark_h Member Mega Poster Join Date: Aug 2005 Location: Fleet, Hampshire Posts: 2,448	Re: What's it called when a computer saves to two HDD's simultaneously The full monty is a raid array. For home use there are various free apps to sync betwen two drives. __________________ Don't want to be the quickest; don't want to be the best; just want to be the one having the most fun. XL125Varadero -> Curvy SV650N-Y -> SV1000N-K3 -> Multistrada 1200s Twin-tastic stuff. Minister for Sustainability *Aliquid prudentissimus delectabiles et intelligentes in adamasset lingua.*

15-09-15, 08:22 PM	#3
PyroUK Member Mega Poster Join Date: Feb 2011 Location: Poole Posts: 1,083	What's it called when a computer saves to two HDD's simultaneously You are looking for a RAID 1 configuration there Pete. Do you have a tower or laptop? If it's a tower can it hold multiple HDD's in the bays? __________________ 2011 Triumph Daytona 675, Arrow exhaust and QS!

15-09-15, 09:02 PM	#4
DJ123 Member Mega Poster Join Date: Jul 2011 Location: Somewhere over there Posts: 3,245	Re: What's it called when a computer saves to two HDD's simultaneously Raid 1, or mirror raid. Most midrange motherboards have this option on board. Alternatively you can install a raid controller card __________________ BMW F800ST

15-09-15, 09:35 PM	#5
Teejayexc Member Join Date: Oct 2010 Location: Yellow Belly County Posts: 564	Re: What's it called when a computer saves to two HDD's simultaneously Does this help Pete? http://www.pcworld.com/article/132877/RAID.html

16-09-15, 02:37 AM	#6
Bluepete Member Mega Poster Join Date: Sep 2005 Location: Ex motorcyclist Posts: 1,961	Re: What's it called when a computer saves to two HDD's simultaneously That's it! Cheers all. Pete __________________ https://www.facebook.com/pete.philli...04?ref=tn_tnmn

16-09-15, 07:49 AM	#7
Amadeus Guest Posts: n/a	What's it called when a computer saves to two HDD's simultaneously I have a few NAS devices, made by synology. I have western digital red drives (purportedly specifically for NAS devices). Im very pleased with them. I spent a long time determining which to go for and my requirements will probably not be the same as yours but I would recommend them.

16-09-15, 09:29 AM	#8
timwilky Member Mega Poster Join Date: Mar 2004 Location: Not in Yorkshire. (Thank God) Posts: 4,116	Re: What's it called when a computer saves to two HDD's simultaneously Pete. Think how you want to preserve your photos. In my case, I have them within a gallery app on one of my internet servers. This is backed upto my RAID 5 nas daily, and I back up the nas to cheap secondary nas on a weekly basis. The secondary lives in the garage when I am not using it. Obviously it is not just photos but anything I want to keep. I have no backup options for my hosted internet server, therefore I need to backup into the home nas. But the danger is I loose the home nas for some reason or files on it become corrupted. The secondary nas holds backups, not simply a synced copy of the primary. After all you do not want a file corruption or inadvertent change to propagate. You delete it on raid storage it is still gone despite there once being two copies. Raid protects you slightly from hardware failure. But not user stupidity. __________________ Not Grumpy, opinionated.

17-09-15, 02:00 PM	#10
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: What's it called when a computer saves to two HDD's simultaneously depends on how many gb/tb we are talking. it might be better to back up to dvd/br then file it away.

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