[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
subrate SFP?
Unless I missed something, iLO is always on when the machine has
power; as such, WOL shouldn't be coming into play on reasonably modern
HP servers. (That said, the power draw is likely still the reason,
although I can't readily confirm Charles' observation on my only
rackmount Gen8.)
Jima
On 2013-08-31 13:38, Joel Jaeggli wrote:
> WOL uses 100Mb/s, the phy draws less that way.
>
> Sent from my iPhone
>
> On Aug 31, 2013, at 10:13, Charles N Wyble <charles-lists at knownelement.com> wrote:
>
>> On hp proliant gen8 servers with management and ilo on same port, with the server off the ports show up as 100mbps.
>>
>> Jimmy Hess <mysidia at gmail.com> wrote:
>>> On Fri, Aug 30, 2013 at 6:42 AM, Jamie Bowden <jamie at photon.com> wrote:
>>>
>>>>> From: Saku Ytti [mailto:saku at ytti.fi]
>>>> Considering that Dell and HP at least are shipping brand new hardware
>>> with
>>>> IPMI/BMC/iLO/whatever management ports that can only speak 100mbit
>>> when
>>>> every other Ethernet interface in the box at least gigabit, having a
>>> useful
>>>> way to talk to that port without having to keep separate switching
>>> hardware
>>>> around would be nice. I'm not holding my breath, but you know, along
>>> with
>>>> a pony, this would be nice.
>>>
>>> Eh? That may have been the case a few years ago, but HP ILO4 and
>>> iDRAC7 specifically list 10/100/1000 even when using in dedicated
>>> port
>>> mode.
>>>
>>> And even in prior versions, you could have the port linking up at
>>> 1Gbps,
>>> by operating the management in Shared port mode (Sharing the
>>> management
>>> with the server's Eth0).
>>>
>>> I expect over time: support for linking up at 10/100 will get rarer
>>> and
>>> much more expensive.
>>>
>>>
>>> The niche status a 10/100 media converter as an SFP would have if
>>> produced
>>> is likely to mean it would retail at $2000+ per port device.
>>>
>>>
>>> It probably just makes more sense to go find an old obsolete top of
>>> rack
>>> switch, like a Cat3750 to get the small fraction of legacy copper
>>> ports
>>> required for out of band network and server management, which: by the
>>> way, should be part of a separate switching infrastructure anyways,
>>> to
>>> increase the chance it stays operational and useful for
>>> troubleshooting, in
>>> the event the production network experiences outage or has other issues
>>> requiring diagnosis.
>>>
>>>
>>>
>>>> Jamie
>>>
>>> --
>>> -JH
>>
>> --
>> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>>
>