[plug] musing on HDD types (William Kenworthy)

[Benjamin]

+1 to all of it, cheers Paul.

I think it's worth going for the cheapest externals you can get, shucking
them, then using MooseFS since you're already planning to.

I'd use copies=3 and if you're storing more than 50TB talk to me about
mfspro.

On Sun, 25 Apr 2021, 13:03 Paul Del, <p at delfante.it> wrote:

> Hello Bill
>
> My 2 cents worth
>
> I am sure you know the common things that can increase your hard drives
> life and performance:
> Temperature
> Humidity
> VIbration
> Heavy Writes
> Heaving Logging
> Clean/Reliable power
> Data throughput
>
> The rust hard drives I have seen the most failures with are: (I recommend
> avoiding)
> WD Green
> WD Blue
> Hitachi Deskstar
> (Not The server drives)
>
> The rust hard drives I recommend the most are:
> WD Black 7200rpm or better
> Seagate 7200pm or better
> (Not Red, Blue, Green, Purple)
>
> If you are doing the moose distribute setup
> You could always choose two different brands/types
>
> if you want to know more specific things about which hard drive failures.
> Check out this from backblaze, I am sure there's more around. Which is one
> Benjamin sent around ages ago.
> https://www.backblaze.com/blog/backblaze-hard-drive-stats-for-2020/
> https://www.backblaze.com/blog/backblaze-hard-drive-stats-q2-2020/
>
> Thanks Paul
>
>
> On Sat, 24 Apr 2021, 09:02 William Kenworthy, <billk at iinet.net.au> wrote:
>
> > Just musing on what changes I could make to streamline my systems:
> >
> > After a recent stray "r m  - r f " with a space in it I ended up
> > removing both most of my active data files, VM's etc ... and the online
> > backups - ouch!
> >
> > I have restored from offline backups and have noticed a ~10years old WD
> > green drive showing a few early symptoms of failing (SMART).
> >
> > With the plethora of colours now available (!) now what drive is best for
> > a:
> >
> >     1. moosefs chunkserver (stores files for VM's, data including the
> > mail servers user files, home directories and of course the online
> > borgbackup archives - the disks are basically hammered all the time.)
> >
> >     2. offline backups (~2tb data using borgbackup to backup the online
> > borgbackup repo, used twice a week for a few minutes at a time.)
> >
> > My longest serving drives are WD greens 2Tb which until now have just
> > keep ticking along.  The failing drive is a WD Green - I have run
> > badblocks on it overnight with no errors so far so it might have
> > internally remapped the failed sectors ok - I am using xfs which does
> > not have badblock support.  Most drives spent previous years in btrfs
> > raid 10's or ceph so they have had a hard life!
> >
> > Newer WD Reds and a Red pro have failed over the years but I still have
> > two in the mix (6tb and 2tb)
> >
> > Some Seagate Ironwolfs that show some SMART errors Backblaze correlate
> > with drive failure and throw an occasional USB interface error but
> > otherwise seem OK.
> >
> > There are shingled, non-shingled drives, surveillance, NAS flavours etc.
> > - but what have people had success with? - or should I just choose my
> > favourite colour and run with it?
> >
> > Thoughts?
> >
> > BillK
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