[DRBD-user] 10Gb ethernet ?
igor at 3gnt.net
Thu Jun 19 12:07:00 CEST 2008
Lee Christie wrote:
>> From: Igor Neves [mailto:igor at 3gnt.net]
>> Subject: Re: [DRBD-user] 10Gb ethernet ?
>> I'm very interested in 10Gbit ethernet too. What NIC's have you found
>> for that?
>> The better one we have tested is 4Gbit ethernet (4x 1Gbit
>> Ethernet from Intel).
> OK we're using these
> Seeing some speedy bursts, but the overall average is perhaps a bit
> disappointing :
> version: 8.0.12 (api:86/proto:86)
> GIT-hash: 5c9f89594553e32adb87d9638dce591782f947e3 build by
> buildsvn at c5-x8664-build, 2008-06-02 11:17:42
> 0: cs:SyncSource st:Secondary/Secondary ds:UpToDate/Inconsistent C r---
> ns:136562636 nr:0 dw:0 dr:136570688 al:0 bm:8335 lo:1 pe:4 ua:252
> [>....................] sync'ed: 3.2% (4060478/4193840)M
> finish: 3:51:18 speed: 299,392 (141,956) K/sec
> resync: used:1/61 hits:8527077 misses:8336 starving:0 dirty:0
> act_log: used:0/127 hits:0 misses:0 starving:0 dirty:0 changed:0
> Using FTP the transfer rate is 190MB/s between the two boxes. Both boxes
> are using an 8-disk RAID-0 of 1TB SATA disks which is capable of a lot
> more so I reckon the networking side of things needs tuning.
But you have tested the raid-0 doing a lot more?
Do you have tested both nodes with iperf?
How much its the performance?
This card have a problem, it's not fault tolerant, and that it's one
advantage to Quad NIC Gbit Ethernet.
With one Gbit ethernet, you should get about 120MB/sec, at least i get
it. You are mostly doing one Gbit.
> This email may contain legally privileged and/or confidential information. It is solely for and is confidential for use by the addressee. Unauthorised recipients must preserve, observe and respect this confidentiality. If you have received it in error please notify us and delete it from your computer. Do not discuss, distribute or otherwise copy it.
> Unless expressly stated to the contrary this e-mail is not intended to, and shall not, have any contractually binding effect on the Company and its clients. We accept no liability for any reliance placed on this e-mail other than to the intended recipient. If the content is not about the business of this Company or its clients then the message is neither from nor sanctioned by the Company.
> We accept no liability or responsibility for any changes made to this e-mail after it was sent or any viruses transmitted through this e-mail or any attachment. It is your responsibility to satisfy yourself that this e-mail or any attachment is free from viruses and can be opened without harm to your systems.
Igor Neves <igor.neves at 3gnt.net>
3GNTW - Tecnologias de Informação, Lda
SIP/JID/MSN: igor at 3gnt.net
Mobile Phone: 00351914503611
Local Phone: 00351252377120
More information about the drbd-user