Networking Question Regarding Gigbit Ethernet
Stephen
cryptworks at gmail.com
Mon Jul 2 06:49:02 MST 2012
Or if you have any leftover hardware you can build an openfiler box. I have
had immense success with them in the past.
On Jul 1, 2012 4:49 PM, "Michael Butash" <michael at butash.net> wrote:
> Out of the last several external WD drives I've gotten for myself and
> others, most have failed prematurely, caused very buggy hardware issues
> (bios wouldn't even load with their usb drive connected), and prior
> mentioned removal of firmware features to allow drives to be raid friendly.
> I showed my support by not buying them for a good 3-4 years now.
>
> Seagate raced to last with the maxtor purchase, wd just borg'd hitachi's
> drive business, leaving Samsung as about the only other viable hd company.
> Competition is obviously alive and well in this business with the product
> quality showing as a result.
>
> Probably better off sniping a used little drobo unit off ebay on the cheap
> and byod than messing with vendor nas junk if they can't even ship a stable
> os on the unit.
>
> -mb
>
>
> On 07/01/2012 04:18 PM, Mark Phillips wrote:
>
>> Well, the update finished, but I am still getting over 50% packet loss
>> when I ping the device. I guess back to costco it goes.
>>
>> Mark
>>
>> On Sun, Jul 1, 2012 at 3:05 PM, Mark Phillips
>> <mark at phillipsmarketing.biz <mailto:mark@**phillipsmarketing.biz<mark at phillipsmarketing.biz>>>
>> wrote:
>>
>> The device is now updating the firmware......and there are no
>> packets lost on pings to the device or pings from the device.
>>
>> Mark
>>
>>
>> On Sun, Jul 1, 2012 at 2:53 PM, Michael Butash <michael at butash.net
>> <mailto:michael at butash.net>> wrote:
>>
>> Unless you have a managed switch, don't force negotiation, as
>> it'll just cause the switch to run in 10base/half-duplex (lowest
>> common denominator) when there is no negotiation advertised.
>> It's sitting in 100/full already, which is what you want.
>>
>> If you do ifconfig eth0, do you see any errors? Collisions and
>> CRC errors will stack if there is a negotiation problem. Seems
>> like either the switch or phy port on the mybook is wack, but
>> doesn't make a lot of sense you'd lose that much anyways. Try
>> different switch port/cable if there are errors.
>>
>> Have you tried pinging from the mbl itself to the gateway or
>> other hosts? Could be they have some kind of input iptables
>> filter rate-limiting/shaping packets or some such, but unlikely.
>>
>> -mb
>>
>>
>>
>> On 07/01/2012 02:39 PM, Mark Phillips wrote:
>>
>> I was able to ssh into the MBL and it has ethtool installed -
>>
>> MyBookLive:~# ethtool eth0
>> Settings for eth0:
>> Supported ports: [ MII ]
>> Supported link modes: 10baseT/Full
>> 100baseT/Full
>> 1000baseT/Full
>> Supports auto-negotiation: Yes
>> Advertised link modes: 10baseT/Full
>> 100baseT/Full
>> 1000baseT/Full
>> Advertised auto-negotiation: Yes
>> Speed: 100Mb/s
>> Duplex: Full
>> Port: MII
>> PHYAD: 1
>> Transceiver: external
>> Auto-negotiation: on
>> Link detected: yes
>> MyBookLive:~#
>>
>> So, it should work on 100baeT. Any thoughts on why I am
>> loosing so many
>> packets?
>>
>> Mark
>>
>> On Sun, Jul 1, 2012 at 2:09 PM, Mark Phillips
>> <mark at phillipsmarketing.biz
>> <mailto:mark@**phillipsmarketing.biz<mark at phillipsmarketing.biz>
>> >
>> <mailto:mark at __phillipsmarketi**ng.biz<http://phillipsmarketing.biz>
>> <mailto:mark@**phillipsmarketing.biz<mark at phillipsmarketing.biz>>>>
>> wrote:
>>
>> So I need to run this on the MLB?
>>
>> Mark
>>
>> On Jul 1, 2012 1:36 PM, "James Mcphee"
>> <jmcphe at gmail.com <mailto:jmcphe at gmail.com>
>> <mailto:jmcphe at gmail.com <mailto:jmcphe at gmail.com>>> wrote:
>>
>> As such. You need to use whatever eth device you
>> have, of course.
>>
>> jmcphee at locus ~ :) $ sudo ethtool eth2
>> Settings for eth2:
>> Supported ports: [ TP MII ]
>> Supported link modes: 10baseT/Half
>> 10baseT/Full
>> 100baseT/Half
>> 100baseT/Full
>> 1000baseT/Half
>> 1000baseT/Full
>> Supported pause frame use: No
>> Supports auto-negotiation: Yes
>> Advertised link modes: 10baseT/Half
>> 10baseT/Full
>> 100baseT/Half
>> 100baseT/Full
>> 1000baseT/Half
>> 1000baseT/Full
>> Advertised pause frame use: Symmetric
>> Receive-only
>> Advertised auto-negotiation: Yes
>> Link partner advertised link modes:
>> 10baseT/Half
>> 10baseT/Full
>>
>> 100baseT/Half
>> 100baseT/Full
>> Link partner advertised pause frame use:
>> Symmetric
>> Link partner advertised auto-negotiation:
>> Yes
>> Speed: 100Mb/s
>> Duplex: Full
>> Port: MII
>> PHYAD: 0
>> Transceiver: internal
>> Auto-negotiation: on
>> Supports Wake-on: pumbg
>> Wake-on: g
>> Current message level: 0x00000033 (51)
>> drv probe ifdown ifup
>> Link detected: yes
>>
>>
>> On Sun, Jul 1, 2012 at 1:22 PM, Mark Phillips
>> <mark at phillipsmarketing.biz
>> <mailto:mark@**phillipsmarketing.biz<mark at phillipsmarketing.biz>
>> >
>> <mailto:mark at __phillipsmarketi**ng.biz<http://phillipsmarketing.biz>
>> <mailto:mark@**phillipsmarketing.biz<mark at phillipsmarketing.biz>
>> >>>
>>
>> wrote:
>>
>> How do I use ethtool to answer your question?
>>
>> Mark
>>
>>
>> On Sun, Jul 1, 2012 at 12:52 PM, James Mcphee
>> <jmcphe at gmail.com <mailto:jmcphe at gmail.com>
>> <mailto:jmcphe at gmail.com <mailto:jmcphe at gmail.com>>> wrote:
>>
>> What does ethtool tell you about what the
>> interface
>> thinks it is?
>>
>> On Sun, Jul 1, 2012 at 12:44 PM, Mark
>> Phillips
>> <mark at phillipsmarketing.biz <mailto:mark@**
>> phillipsmarketing.biz <mark at phillipsmarketing.biz>>
>> <mailto:mark at __phillipsmarketi**ng.biz<http://phillipsmarketing.biz>
>> <mailto:mark@**phillipsmarketing.biz<mark at phillipsmarketing.biz>>>>
>> wrote:
>>
>> I have a 100baseT network with several
>> Debian
>> servers, a mac book, and some virtual
>> windows. I
>> just picked up a Western Digital My
>> Book Live (MBL)
>> 2TB NAS at Costco, and powered it up on
>> my network.
>> The unit is just sitting with its green
>> light on,
>> and the web interface is really slow.
>> When I ping
>> the device, it shows somewhere from 50%
>> to 86%
>> packet loss. If I ping any other
>> computer on the
>> network I have 0% packet loss. I have
>> tried moving
>> the device to different physical plugs,
>> and I get
>> the same results.
>>
>> ping results for the MBL from server A:
>> --- 192.168.25.213 ping statistics ---
>> 330 packets transmitted, 152 received,
>> 53% packet
>> loss, time 329555ms
>> rtt min/avg/max/mdev =
>> 0.208/0.273/0.650/0.048 ms
>>
>> --- 192.168.25.213 ping statistics from
>> server B ---
>> 254 packets transmitted, 120 received,
>> 52% packet
>> loss, time 252998ms
>> rtt min/avg/max/mdev =
>> 0.196/0.264/2.499/0.206 ms
>>
>>
>> ping results for server A to B:
>> --- 192.168.25.130 ping statistics ---
>> 340 packets transmitted, 340 received,
>> 0% packet
>> loss, time 338996ms
>> rtt min/avg/max/mdev =
>> 0.080/0.177/0.246/0.030 ms
>>
>> The device says gigabit Ethernet next
>> to the
>> Ethernet port. Is there any reason I
>> can't connect a
>> gigabit Ethernet device to a 100baseT
>> network other
>> than the obvious speed difference?
>> Should I see all
>> this packet loss? This is actually the
>> second unit I
>> have tried - the first one acted the
>> same way, so I
>> took it back. I am now wondering if I
>> am doing
>> something wrong.
>>
>>
>> Thanks!
>>
>> Mark
>>
>>
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>> --
>> James McPhee
>> jmcphe at gmail.com <mailto:jmcphe at gmail.com>
>> <mailto:jmcphe at gmail.com <mailto:jmcphe at gmail.com>>
>>
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>> --
>> James McPhee
>> jmcphe at gmail.com <mailto:jmcphe at gmail.com>
>> <mailto:jmcphe at gmail.com <mailto:jmcphe at gmail.com>>
>>
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