Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
OS disk is usually a local device and not managed by drbd, i.e. is not a backing device. Unless I'm missing something about your question. Antonio -- Lo scopo del lavoro è quello di guadagnarsi il tempo libero (Aristotele) The purpose of the job is to gain leisure (Aristotele) 2011/2/1 Ivan Frain <ivan.frain at euranova.eu>: > Hi all, > > I am currently evaluating DRBD as a storage candidate for highly available > storage in a virtualized environment. > It seems like a very good alternative to expensive SAN/NAS. > I was wondering how DRBD deals with the network block device deadlock > problem. > This problem (described here: http://lwn.net/Articles/195416/) can be > summarized as follows: if the system runs short in memory, it will try to > write dirty page to disk in order to free memory space. if the disk is a > network block device, the dirty page write may need to allocate some other > memory pages which is not possible since the solution to have more memory > available was to write the dirty page to disk. > > If someone has some information about that problem I'am eager to read it. > > Thank you in advance. > > BR, > Ivan > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > >