Обсуждение: OT hardware recommend

Hi all.

I have access to quite a few laptop HD's (10 to 15 of them at least),
and thought that might make a neat test box that might have some good IO
speed.

Needs to be cheap though, so linux with software raid, rack mount
preferred but not required.

Anyone have any experience with anything like that?  $2K might be
possible, painful, but possible.

Suggestions?

Thanks for your time,

-Andy

On 18/06/16 08:36, Andy Colson wrote:
> Hi all.
>
> I have access to quite a few laptop HD's (10 to 15 of them at least),
> and thought that might make a neat test box that might have some good
> IO speed.
>
> Needs to be cheap though, so linux with software raid, rack mount
> preferred but not required.
>
> Anyone have any experience with anything like that?  $2K might be
> possible, painful, but possible.
>
> Suggestions?
>
> Thanks for your time,
>
> -Andy
>
>
It would be a good idea to say what country you are in, and what city
(or locality).

What I know about Auckland in New Zealand may not be relevant to you...  :-)


Cheers,
Gavin

On 6/17/2016 2:33 PM, John W Higgins wrote:
>
http://www.ebay.com/itm/2U-24-bay-2-5-Supermicro-Server-X8DTH-iF-2x-Xeon-Quad-Core-32GB-RAM-SAS2-216EL1-/222132081393?hash=item33b81a92f1:g:UzYAAOSwR5dXSQVw
>
> With it being 2U you can then pop out the motherboard and go with
> anything more modern you wanted in terms of the motherboard/cpu/ram.

I would, however, also buy a LSI/Avago SAS 9207-8i card and remove that
3ware 9750 'hardware' raid controller, which you can probably get $200
for on ebay.

--
john r pierce, recycling bits in santa cruz

On 18/06/16 14:23, Scott Marlowe wrote:
> On Fri, Jun 17, 2016 at 2:36 PM, Andy Colson <andy@squeakycode.net
> <mailto:andy@squeakycode.net>> wrote:
>
>     Hi all.
>
>     I have access to quite a few laptop HD's (10 to 15 of them at
>     least), and thought that might make a neat test box that might
>     have some good IO speed.
>
>     Needs to be cheap though, so linux with software raid, rack mount
>     preferred but not required.
>
>     Anyone have any experience with anything like that?  $2K might be
>     possible, painful, but possible.
>
>     Suggestions?
>
>
> Sell them all and buy a couple of 800G SSDs? :)

You can get 4TB SSD's now - but somewhat pricey!!!

(besides, you'd still need backups)

On 06/17/2016 04:33 PM, Gavin Flower wrote:
> On 18/06/16 08:36, Andy Colson wrote:
>> Hi all.
>>
>> I have access to quite a few laptop HD's (10 to 15 of them at least), and thought that might make a neat test box
thatmight have some good IO speed. 
>>
>> Needs to be cheap though, so linux with software raid, rack mount preferred but not required.
>>
>> Anyone have any experience with anything like that?  $2K might be possible, painful, but possible.
>>
>> Suggestions?
>>
>> Thanks for your time,
>>
>> -Andy
>>
>>
> It would be a good idea to say what country you are in, and what city (or locality).
>
> What I know about Auckland in New Zealand may not be relevant to you...  :-)
>
>
> Cheers,
> Gavin
>
>
>

Iowa, USA.

On 06/17/2016 09:23 PM, Scott Marlowe wrote:
> On Fri, Jun 17, 2016 at 2:36 PM, Andy Colson <andy@squeakycode.net <mailto:andy@squeakycode.net>> wrote:
>
>     Hi all.
>
>     I have access to quite a few laptop HD's (10 to 15 of them at least), and thought that might make a neat test box
thatmight have some good IO speed. 
>
>     Needs to be cheap though, so linux with software raid, rack mount preferred but not required.
>
>     Anyone have any experience with anything like that?  $2K might be possible, painful, but possible.
>
>     Suggestions?
>
>
> Sell them all and buy a couple of 800G SSDs? :)
Gaaa.. math!

Yep, had not thought about that.  But do I want speed or space?  How much could we sell them for?  So many questions I
hadnot thought about.  I'd just thought, "huh, a pile of laptop drives, I'd better raid them", and not much else. 

We have good production boxes, so this would only be for test/play.  I don't even really have a purpose, other than
maybelearning something new. 

Thanks all for the suggestions.

-Andy

On 06/17/2016 04:39 PM, John R Pierce wrote:
> On 6/17/2016 2:33 PM, John W Higgins wrote:
>>
http://www.ebay.com/itm/2U-24-bay-2-5-Supermicro-Server-X8DTH-iF-2x-Xeon-Quad-Core-32GB-RAM-SAS2-216EL1-/222132081393?hash=item33b81a92f1:g:UzYAAOSwR5dXSQVw
>>
>> With it being 2U you can then pop out the motherboard and go with anything more modern you wanted in terms of the
motherboard/cpu/ram.
>
> I would, however, also buy a LSI/Avago SAS 9207-8i card and remove that 3ware 9750 'hardware' raid controller, which
youcan probably get $200 for on ebay. 
>

Thanks John and John.  (Thank the John's!)

Seems Like I could also get an HP D2700 off ebay pretty cheap, but I'd probably also have to buy a raid card that
supportsmini-sas, and I'd have to find a computer to attach it to.  Anyone with experience with those (or similar)? 

Any idea's if 15 5400 laptop drives in raid 10 attached to a D2700 would be performant at all?

There's a pretty good chance I'll get a few more.  I might get 5 more, would that make a difference?

Would the Supermicro and an HP D2700 use about the same amount of power?

Thanks all.

-Andy

On 06/18/2016 11:52 AM, Andy Colson wrote:
> On 06/17/2016 04:39 PM, John R Pierce wrote:
>> On 6/17/2016 2:33 PM, John W Higgins wrote:
>>>
http://www.ebay.com/itm/2U-24-bay-2-5-Supermicro-Server-X8DTH-iF-2x-Xeon-Quad-Core-32GB-RAM-SAS2-216EL1-/222132081393?hash=item33b81a92f1:g:UzYAAOSwR5dXSQVw
>>>
>>>
>>> With it being 2U you can then pop out the motherboard and go with
>>> anything more modern you wanted in terms of the motherboard/cpu/ram.
>>
>> I would, however, also buy a LSI/Avago SAS 9207-8i card and remove
>> that 3ware 9750 'hardware' raid controller, which you can probably get
>> $200 for on ebay.
>>
>
> Thanks John and John.  (Thank the John's!)
>
> Seems Like I could also get an HP D2700 off ebay pretty cheap, but I'd
> probably also have to buy a raid card that supports mini-sas, and I'd
> have to find a computer to attach it to.  Anyone with experience with
> those (or similar)?
>
> Any idea's if 15 5400 laptop drives in raid 10 attached to a D2700 would
> be performant at all?

Sure, especially if you get a caching controller and use RAID 10.

That said, a single SSD will blow the doors off of it.

JD

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