You do want hot swap though.
--Ian
------------------------------------------------
Ian Collier [log in to unmask]
RAL Tier1 Fabric Team
R89 F18, STFC Rutherford Appleton Laboratory
DIDCOT OX11 0QX UK
+44 (0)1235 445440 +44 (0)7866 510075
------------------------------------------------
On 12 Jan 2012, at 16:14, Alessandra Forti wrote:
> PS I don't think we need raid cards though as they are a nuisance and linux can handle the raid1 nicely. 10GBE nic (it'll more likely be 10GBASE-T for us) is IMO essential.
>
> Said that I'd like to understand if gridpp is going to buy these in one order for everyone or if we just have to conform to the model.
>
> cheers
> alessandra
>
> On 12/01/2012 16:11, Alessandra Forti wrote:
>> Hi Mark,
>>
>> I'm fine with R610.
>>
>> cheers
>> alessandra
>>
>> On 12/01/2012 15:56, Mark Mitchell wrote:
>>> Hi Ewan and everyone else,
>>> I think this is a fair analysis of the systems available.
>>> Either box is an adequate client for Gridmon and PerfSonar.
>>> I personally am agnostic to the network interface as it is upgradeable for sites which require 10 Gigabit connections.
>>> However, I am in agreement that we should come to a final answer on this shortly.
>>>
>>> Therefore, I would consider the R610 for these roles.
>>>
>>> Can others comment on this if they feel that it is an appropriate platform.
>>>
>>> Regards,
>>> Mark
>>>
>>> On 12 Jan 2012, at 15:45, Ewan MacMahon wrote:
>>>
>>>>> -----Original Message-----
>>>>> From: Testbed Support for GridPP member institutes [mailto:TB-
>>>>> [log in to unmask]] On Behalf Of Mark Mitchell
>>>>> Sent: 10 January 2012 12:34
>>>>>
>>>>> Therefore, could we have a quick discussion on which device we wish to buy
>>>>> as we should have a standardised model across the UK for these devices.
>>>>>
>>>>
>>>> So, to summarise:
>>>> - We like the idea of things like RAID, redundant PSUs, and
>>>> hot-swap disks for the sake of keeping things up, and for
>>>> the sake of peaceful contented sysadmins,
>>>> - We like 10Gbit cards,
>>>> - We don't want to gratuitously overspend on pointless stuff.
>>>>
>>>> I think the R310 and R610 specs that I posted look reasonable,
>>>> but it would be useful to get quotes from Dell for the R310
>>>> with a 10Gbit Ethernet card (and confirmation that it's
>>>> capable of driving one at a decent rate, which is different
>>>> from 'it basically functions'), and also for an R610 with a
>>>> single CPU.
>>>>
>>>> Is that fair, or does anyone want to suggest anything else,
>>>> because we want to get a final answer to this quite shortly
>>>> so people can actually go buy things.
>>>>
>>>> Ewan
>>>
>>> --------------------------------------------
>>> Mark Mitchell,
>>> ScotGrid Technical Co-ordinator,
>>>
>>>
>>>
>>> Rm 481,
>>> Kelvin Building,
>>> School of Physics and Astronomy,
>>> University of Glasgow,
>>>
>>>
>>>
>>> G12 8QQ, UK
>>> Telephone: +44-141-330 6439
>>> E Mail: [log in to unmask]
>>>
>>
>
|