Hello:
I think I'll probably do this,
4x2T drive in desktop and use a external closure for backup(because I
am using mirroring, disk failure should be ok though). and I'll be
using soft raid to avoid hardware raid card.
Thank you both!
Jim.
On 19 February 2011 01:39, Ron Johnson <ron.l.john...@cox.net> wrote:
> On 02/19/2011 12:23 AM, David Christensen wrote:
>>
>> On 02/18/2011 08:36 PM, Jim Green wrote:
>>>
>>> I have a laptop with 120G harddrive, 2x320G external harddrive, I
>>> don't have a desktop.
>>> Now I am doing something serious storing some huge historical data to
>>> mysql database and want to have some better storage solution ...
>>> I have two options
>>> 1, buy a desktop with 4x2T harddrives and use lvm on raid1, I need
>>> the
>>> redundancy of data.
>>> 2, buy some independent storage like NAS, buy another desktop with
>>> small harddrive to access the NAS, debian installed on NAS and
>>> desktop
>>> of course.
>>> what do you think would be a better solution for me?
>>
>> On 02/18/2011 08:50 PM, Ron Johnson wrote:
>> > Option 3: Multi-drive external USB enclosure. Gives you the capacity
>> > of a NAS at 1/3 the cost.
>>
>> I prefer the responsiveness of data drives inside the machine using
>> the data, especially with hardware-based RAID.
>>
>
> Sure. But that means you must buy a desktop (probably with a large tower
> case).
>
>>
>> Think about how you're going to back up 4 TB (?) of data. You might
>> want to put two drives in your desktop with hardware RAID0 and two
>> into a backup server with LVM JBOD (so you can add more drives later
>> without having to wipe the existing backups). You might also want to
>> have some external device that you can dump the backup to
>> periodically and store off-site.
>>
>
> Or a 2nd external enclosure ("first" if you buy a tower PC) for your
> backups. You can then buy slower "green" drives for it.
>
> If he's wedded to his laptop, I'd buy 2 of the 4-drive USB enclosures and
> populate one with 7200RPM "normal" drives and the other with 5900RPM "green"
> drives.
>
> Wed each pair with md and/or lvm.
>
> If OP ever decides he needs the speed of a desktop-tower, then he can
> directly move the 7200RPM drives into the tower.
>
>>
>> bonnie++ is very useful for benchmarking multiple drive
>> configuration options:
>>
>> http://packages.debian.org/squeeze/bonnie++
>>
>
>
> --
> "The normal condition of mankind is tyranny and misery."
> Milton Friedman
>
>
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