[kwlug-disc] Bundling HD's. LVM vs mdadm vs ???

Khalid Baheyeldin kb at 2bits.com
Thu Apr 11 09:17:18 EDT 2013

Not a direct answer, but related.

Is 3TB enough? Because there are reasonablly priced 3TB disks out there. I
got two WD Green ones for backups.

The trick is to use parted, with some trick that I forgot now (but easily
Googleable), because fdisk does see over 2TB.
On Apr 11, 2013 9:02 AM, "unsolicited" <unsolicited at swiz.ca> wrote:

> I'm running out of backup space, so I'm probably going to buy a larger
> drive, and move a current drive into another computer - expecting to bundle
> it with the drive already there into a single logical presentation. (Add
> 4TB, move 2TB -> 2TB + 2TB = 4TB.)
> I don't 'do' RAID (at least at home, where high availability isn't an
> issue), and mistrust striping - lose 1 drive, both be gone. I prefer to say
> 'this' amount of space for 'this' purpose, so when I run out of space I'm
> aware of and address the issue.
> (Presumably a worst case scenario for such bundling upon failure is losing
> one file - the one that crosses physical drives. Correct, even today?)
> I've known for some time LVM is out there, just never needed it. There's
> also mdadm ('LINEAR') [Which I gather LVM calls upon.]
> Any particular pros / cons / preferences / suggestions / thoughts for
> bundling multiple drives into a single logical drive?
> -----
> I'm guessing the only reasonable drive out there at the moment is a WD
> Black - (5 yr warranty, 7200, SATA3, availability / stock levels). Counter
> suggestions?
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