[DRBD-user] drbd block-size

Joelly Alexander alex at joelly.net
Mon Mar 7 23:38:04 CET 2011

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


thank you very much, only found that it would be between 512kb and 
4096kb but no info where to find the exact value;
but know i know where to look... ;-)

thanks again,
alex


On 07.03.2011 09:04, netz-haut - stephan seitz wrote:
>> i am thinking about optimizing and calculating the correct values to
>> optimize the performance for the underlaying device and the network sync
>> to the peer but i do not find the block-size drbd uses?
>> what is the default block-size and how i can change that?
> Drbd uses the blocksize of the underlaying device.
>
> You might want to peek into /sys/block/drbd0/queue/logical_block_size
> and/or /sys/block/drbd0/queue/hw_sector_size
>
> Due to own experiments, I can state that different blocksizes on the backing devices
> does not mix well.
>
> Cheers,
>
> Stephan
>
>
>
>



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