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Alternative to software raid 1

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McJamweasel
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PostPosted: 23:45 - 12 Mar 2014    Post subject: Alternative to software raid 1 Reply with quote

I've got a 2tb disk with all my data on and I've just bought another with the intention of using the Windows mirror service to setup a software raid - except that I've just found out that it's not a feature of Windows 7 home premium, only pro.

So, other than using a backup/synchronise program and scheduling it are there any other alternatives?
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CaNsA
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PostPosted: 23:46 - 12 Mar 2014    Post subject: Reply with quote

Home computer?

Download and install win 7 pro Very Happy

Or check to see if your motherboard has built in raid.
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McJamweasel
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PostPosted: 23:48 - 12 Mar 2014    Post subject: Reply with quote

It is a home office PC.

I don't really want to go pirate this time (although I'm not quite sure why). I wanted to stick to software as well.
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CaNsA
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PostPosted: 23:50 - 12 Mar 2014    Post subject: Reply with quote

Software raid is good, to a point.... but if the o/s bombs out will it not take the raid with it?

I can supply all the stuff you need to own a parrot and an eye patch.
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McJamweasel
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PostPosted: 23:53 - 12 Mar 2014    Post subject: Reply with quote

Win 7 mirror doesn't, it breaks the link but keeps the data intact on both disks and it means that you can chuck either disk into any Windows machine and get straight at your data.
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t121anf
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PostPosted: 23:53 - 12 Mar 2014    Post subject: Reply with quote

I use allway sync (paid for version) to sync my drives in my server, and to cloud (hate that term) providers.

Set up a script and schedule it then you can forget all about it.
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CaNsA
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PostPosted: 23:57 - 12 Mar 2014    Post subject: Reply with quote

McJamweasel wrote:
Win 7 mirror doesn't, it breaks the link but keeps the data intact on both disks and it means that you can chuck either disk into any Windows machine and get straight at your data.


I wouldnt trust it, but thats just me

Hardware, kinda, raid is made of win.
what mobo do you have?
you would be surprised at how easy it can be to use.

Plug in drive 2, enable raid in bios, tell it to mirror drive 1, fap to porn.
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McJamweasel
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PostPosted: 23:58 - 12 Mar 2014    Post subject: Reply with quote

CaNsA wrote:
Plug in drive 2, enable raid in bios, tell it to mirror drive 1, fap to porn.


Wait for mobo to die then wail as entire porn collection is inaccessible.
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barrkel
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PostPosted: 01:01 - 13 Mar 2014    Post subject: Reply with quote

CaNsA wrote:
Hardware, kinda, raid is made of win.

Hardware raid is made to lose your data if your raid card / chip dies and you can't replace it with a firmware compatible one. Though mirroring isn't nearly as bad as raid5 / 6.

Software raid all the way for me, but not Windows 7. Raid10 in groups of 4, either zfs or lvm. One day, perhaps, btrfs, but not just yet.

Quote:
I use allway sync (paid for version) to sync my drives in my server, and to cloud (hate that term) providers.

This is different. Raid is not backup, and is not a replacement for it.

Backup has three[1] key characteristics: redundancy, versioning and distribution.

You need to have multiple devices such that a single failure doesn't lose your data (and rare / odd raid cards with anything other than a trivial mirroring configuration count as a single device).

You need to have multiple versions of files, so creeping corruption can be recovered from. The perfect backup that instantly duplicates your file everywhere is no good if it duplicates a bad version of the file and overwrites the old, good version.

And you need backups to be stored in different locations, so that a catastrophe (like a flood or fire) in one location doesn't destroy everything.

Raid just gives you redundancy.

File systems based on a tree of blocks, like zfs and btrfs, normally make snapshots cheap. That gives you versioning. And both are capable of redundancy, though zfs is more mature, the best implementation is on Solaris and awkward to use these days, the second best is on FreeBSD. But you still need distribution (I use CrashPlan).

[1] I'd possibly add in verification - if you haven't tested your backups, you don't have backups.
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orac
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PostPosted: 13:55 - 13 Mar 2014    Post subject: Reply with quote

raid 1 is almost pointless on anything other than a server where data integrity is the most important aspect.

the problem with having the drive in the same machine is, if the PSU decide to go bang and take everything else in the system with it, you are just as screwed as you were before.

if it was me i would use the drive to either set up a home office server that backups data automatically at a given time, or chuck it in a nas to do the same thing. the upside to this is, if youe machine does go wrong, plug another machine into the network, put in passwords and keep using the data, or even have access to the data on another part of the network when the machine is still OK (do this all the time for project files and music)

all important data should still be backed up off-site too, but that should be agiven really
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CaNsA
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PostPosted: 13:57 - 13 Mar 2014    Post subject: Reply with quote

NAS drives are pretty handy.....

just sayin'
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