[ale] New hard drive procedure

[Jim Kinney]

And when can you give a talk on "btrf: A How To"?
On Jun 7, 2015 4:34 AM, "Michael Trausch" <mike at trausch.us> wrote:

> +1.
>
> If you're running a system that "can't" go down under reasonably normal
> circumstances, have at least two drives and use btrfs on them, set to an
> appropriate redundancy mode. With weekly or monthly scrubs of the volume,
> you'll get even earlier warning than SMART monitoring alone, plus your data
> is recovered on the fly for errors that are spatially related.
>
> I use a four disk setup (4x1TB) with btrfs in double redundancy mode. I've
> had it catch some instances of silent corruption that wouldn't ever be
> caught by anything other than probably ZFS, and automatically recover.
> That's a winner for me. Plus it's insanely flexible, way more so than LVM2.
> Say goodbye to backup, drive swap, restore and resize. Just swap and resize.
>
> Note well: as with software raid, the processes for planned vs. emergency
> drive replacement differ. In this case, planned is shrink, swap, grow,
> rebalance. Emergency is of course swap, rebuild from redundancy. The former
> is less time-intensive compared to the latter. When you've seen the first
> scrub reporting recovery occurring on a disk due to media errors and not
> silent corruption, it's time to replace that drive using the planned
> procedure before you have to use the emergency one, when possible.
>
> Sent from my iPhone
>
> On Jun 6, 2015, at 8:10 PM, Jim Kinney <jim.kinney at gmail.com> wrote:
>
> I do nothing more than install it and run it. I let my OS do the checking
> with smartctl.
>
> I will do a quick check of the specs and compare to the manual or
> manufactures specs to make sure nothing obvious.
>
> I've probably installed 3-4 hundred as singles and I don't _want_ to think
> how many as array units. I've never had a bad new drive out of the box.
> I've had a few, maybe 2 or 3 that failed within a couple of months and
> given the power supply died shortly after, I'm pretty sure it was killed
> the drives.
>
> Most of the used drives I've installed have failed within a few months.
> All were over 5 years old when I got them.
>
> On Sat, 2015-06-06 at 19:59 -0400, Sam Rakowski wrote:
>
> Hi,
>
> I've purchased a new hard drive(magnetic) to replace an old one that has
> some bad sectors on it. I haven't ever bought a new hard drive; most of my
> hard drives come used or part of a new device.
>
> I'm just interested in hearing what you all run through when you receive a
> new hard drive. Zero it? Run badblocks? All or none of the above?
>
> Sam
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> --
> James P. Kinney III
>
> Every time you stop a school, you will have to build a jail. What you
> gain at one end you lose at the other. It's like feeding a dog on his
> own tail. It won't fatten the dog.
> - Speech 11/23/1900 Mark Twain
> http://heretothereideas.blogspot.com/
>
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