Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 2008.10.22, at 19:46, Lars Ellenberg wrote: > On Wed, Oct 22, 2008 at 03:46:58PM +0200, Martin Gombac wrote: >> Hi, >> >> i'm planing ad server cluster with OpenX. I will have (at least) two >> nodes with Active/Active OCFS or GFS for shared storage on top of >> LVM. >> I wonder if it is possible to "extend"/duplicate DRBD to third or >> fourth >> node later on, if the need for increased capacity is shown, so i can >> simply add just another node to the cluster. >> By extend i don't mean to add more disk space, just to have another >> Active mirror. > > it is probably more suitable and less complex to use a Active/Standby > drbd + iscsi-target cluster as SAN replacement, and import it on your > scale-out cluster file system nodes. > > double check whether a drbd + nfs cluster is "good enough" for your > scenario, as it usually performs better than cluster file systems on > iscsi. Thank you for your reply Lars. In case i want to add more nodes i will use NFSv4 and its internal fail-over capability.