[DRBD-user] DRBD performance over GBit Ethernet

Andreas Semt as at computer-leipzig.de
Wed Apr 7 13:57:05 CEST 2004

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Lars Marowsky-Bree wrote:
> On 2004-04-07T13:11:07,
>    Andreas Semt <as at computer-leipzig.de> said:
> 
> 
>>i have a two node drbd test configuration. The nodes (intel xeons) are 
>>connected over  crossover GBit Ethernet. Can anybody say what i have to 
>>do to use the bandwidth with drbd? What configuration in drbd.conf is 
>>needed to get all the performance of GBit Ethernet?
> 
> 
> Just set the sync speed accordingly, and tl-log to 5000 or even higher,

Did you mean the "--tl-size or -s" option from man drbdsetup?
> you may also wish to use a slightly larger sndbuf.
> 
>>And: What maximum performance i can expect with such a hardware
>>configuration (production use experience anybody)?
> 
> 
> You could easily see >80MB/s. This will to a large degree depend on your
> physical disks.

Disks are SCSI Raid-5, so that seems possible.
> 
> Sincerely,
>     Lars Marowsky-Brée <lmb at suse.de>
> 
Thanks for your tips!

-- 
Best regards,
Andreas Semt



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