Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello, Yes this is true. The metadata can be the problem, i would just use a simple raid setup, everything over hardware raid. Thanks for the clue. Jürgen Scholz wrote: > Hello! > >> I'm new to the topic but managed to get a mirrored setup working. >> The only problem is the sync speed: > After all what Igor has said there is one thing that popped into my mind: > Maybe you want to put the metadata onto a non-RAID5-disk. > I remember that Lars mentioned a serious performance degradation if > the metadata is on a RAID5, because the metadata changes often. With > hardware RAID this is not as serious qs with software RAID, because > normally there is a big (and battery backed!!) cache on them. > The performance degradation seen in synchronisation due to the "slow" > metadata blockdevice will also strike in regular use. You may want to > do something about it. > > Please correct me if i'm wrong here! > > What i would do: > Use two disks in a RAID1 configuration for the OS and metadata. You > should be fine then. The only problem is: you'll lose available > harddisk space. > > hth, > juergen > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user