[DRBD-user] possibility of "pre-sync" ?

Felix Frank ff at mpexnet.de
Thu Feb 24 17:39:08 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.


On 02/24/2011 02:27 PM, netz-haut - stephan seitz wrote:
> Heading back to my former question,
> Is it advisable to split huge storage into smaller chunks?
> 
> 
> Instead of:
> 
> [ ------------- big LV ------------ ]
> [ ------------- big VG ------------ ] [ -> expand later ]
> [ ---------- big DRBD PV ---------- ]
>    /                           \
>  Tgt1                          Tgt2
> 
> 
> maybe
> 
> [ ------------- big LV ------------ ]
> [ ------------- big VG ------------ ]
> [ DRBD PV1 ][ DRBD PV2 ] [ DRBD PV3 ]
>    /    \      /   \        /   \
> Tgt1a  Tgt2a  1b    2b     1c   2c
> 
> 
> ... just wondering if syncing  would scale better this way ...

Quoting DRBD Total: Don't *ever* create VGs that span multiple DRBD
resources. (Don't create such software RAIDs either).

What will you do if one of them gets splitbrained or somesuch?

Regards,
Felix



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