Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.os.linux.misc > #5394

Re: Best Hard Drive Set Up For A New Linux Box?

Show all headers | View raw

On 2012-05-20, David Brown <david.brown@removethis.hesbynett.no> wrote:
> On 20/05/12 20:02, The Natural Philosopher wrote:
>> J G Miller wrote:
>>> On Sunday, May 20th, 2012, at 05:57:02h -0700, Steve wrote:
>>>
>>>> I'm thinking of having a new PC custom built and then having
>>>> Kubuntu 12.04 installed on the hard drive.
>>>
>>> If you want performance, get two hard drives installed.
>>>
>>> Put /, /boot, /usr, /opt, /home OR /srv on the first
>>> and /usr/lib, /usr/local, /usr/share, /usr/src, /var
>>> and /srv OR /home on the second.
>>>
>>> Have a swap partition on each of say 1 GB, and specify
>>> that the swap on the second disk has a higher priority
>>> than the swap on the first.
>>>
>>> This arrangement has been recommended for about 10 years
>>> or so ...
>>>
>>
>> ....so is ten years out of date...
>>
>> Frankly with the amount of RAM and caching that goes on, a single disk
>> aint that much of an issue on a single user system.
>>
>> I used to do stuff that way on small memoried multi-user computers, but
>> I finally gave up on it and just had one bloody great partition so I
>> dint run out of /tmp or /var or /home unless I run out of total disk space.
>>
>
> And if you /do/ want to use two disks, you'd be daft to split it up this 
> way.  You would use raid10 (almost certainly in the "far" layout) to get 
> the safety of mirroring plus performance that averages more than double 
> the speed of a single drive (though synchronised writes are a little 
> slower).
>
> If you want to split up your filesystem (sometimes it makes sense) 
> beyond a simple / and /home, then I'd recommend LVM for flexibility.
>
> And put /tmp on tmpfs.

Do to useful RAID 10, you need at least four disks.  Four-disk
RAID 10 is wonderful.  The advice I found when researching it was
to use disks intended for RAID, definitely not "green" units.  If
you can, avoid getting multiple of the same model and production
lot--buy any units of the same model a month or two apart in
time.  Oh, and make sure to use a UPS and try to avoid kernel
crashes.

I took care to make sure I have two different models in each
mirror pair.  That way, even if both units of the same model die
simultaneously, I still have my data.

Measuring 480MB/s sequential reads from a four-disk RAID10 is a
very sweet experience.

-- 
Robert Riches
spamtrap42@jacob21819.net
(Yes, that is one of my email addresses.)

Back to comp.os.linux.misc | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Best Hard Drive Set Up For A New Linux Box? Steve <tinker123@gmail.com> - 2012-05-20 05:57 -0700
  Re: Best Hard Drive Set Up For A New Linux Box? J G Miller <miller@yoyo.ORG> - 2012-05-20 13:06 +0000
    Re: Best Hard Drive Set Up For A New Linux Box? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-20 19:02 +0100
      Re: Best Hard Drive Set Up For A New Linux Box? David Brown <david.brown@removethis.hesbynett.no> - 2012-05-20 23:19 +0200
        Re: Best Hard Drive Set Up For A New Linux Box? Robert Riches <spamtrap42@jacob21819.net> - 2012-05-22 04:28 +0000
          Re: Best Hard Drive Set Up For A New Linux Box? David Brown <david@westcontrol.removethisbit.com> - 2012-05-22 09:40 +0200
        Re: Best Hard Drive Set Up For A New Linux Box? Stan Bischof <stan@worldbadminton.com> - 2012-06-01 17:22 +0000
          Re: Best Hard Drive Set Up For A New Linux Box? David Brown <david.brown@removethis.hesbynett.no> - 2012-06-03 19:12 +0200
            Re: Best Hard Drive Set Up For A New Linux Box? J G Miller <miller@yoyo.ORG> - 2012-06-04 01:01 +0000
              Re: Best Hard Drive Set Up For A New Linux Box? David Brown <david@westcontrol.removethisbit.com> - 2012-06-04 09:37 +0200
                Re: Best Hard Drive Set Up For A New Linux Box? J G Miller <miller@yoyo.ORG> - 2012-06-04 14:46 +0000
                Re: Best Hard Drive Set Up For A New Linux Box? David Brown <david@westcontrol.removethisbit.com> - 2012-06-05 09:18 +0200
  Re: Best Hard Drive Set Up For A New Linux Box? Sam <sam@email-scan.com> - 2012-05-20 08:31 -0500
    Re: Best Hard Drive Set Up For A New Linux Box? notbob <notbob@nothome.com> - 2012-05-20 13:46 +0000
      Re: Best Hard Drive Set Up For A New Linux Box? Robert Heller <heller@deepsoft.com> - 2012-05-20 09:03 -0500
    [OT] Re: Best Hard Drive Set Up For A New Linux Box? James Moe <jimoeDESPAM@sohnen-moe.com> - 2012-05-21 12:43 -0700
      Re: Best Hard Drive Set Up For A New Linux Box? Sam <sam@email-scan.com> - 2012-05-21 16:48 -0500
  Re: Best Hard Drive Set Up For A New Linux Box? David Brown <david.brown@removethis.hesbynett.no> - 2012-05-20 17:41 +0200
  Re: Best Hard Drive Set Up For A New Linux Box? Bit Twister <BitTwister@mouse-potato.com> - 2012-05-20 17:18 +0000
  Re: Best Hard Drive Set Up For A New Linux Box? The Natural Philosopher <tnp@invalid.invalid> - 2012-05-20 18:58 +0100
    Re: Best Hard Drive Set Up For A New Linux Box? Richard Kettlewell <rjk@greenend.org.uk> - 2012-05-20 19:53 +0100
  Re: Best Hard Drive Set Up For A New Linux Box? Danno <WhoaBaby@MySecretPlace.org> - 2012-05-31 12:01 -0600

csiph-web