Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello, having experience with Heartbeat and DRBD 0.7, I now plan to use Xen on DRBD. I would like to get some hints before I order the hardware. At the moment the services run on 8 Xen-DomUs, 4 physical servers (not clustered). Planned hardware: - 2 servers, each of them having - redundant Power supplies - redundant network connections - 4 x GB-NICs - 4 x 1 TB HDDs (RAID10) OS should be Debian. The DomUs are independent from each other, i.e. Dom1-4 can run on Node 1, and Dom5-8 can run on Node2 in normal operations. Now my questions: 1) Reading a lot via Google and in the archives it is still unclear for me, which block-device should be on top of what. Should each of Xen-DomUs have it's own DRBD-device? Directly on (hardware-) RAID10? If yes, is there a benefit of LVM on top of DRBD? Or which configuration would be 'best'? 2) Is a hardware-STONITH device still necessary? Wich one can be suggested to buy here in Germany/Europe? Is there something less expensive than APC PDU7921 (~500 EUR), as I would need two of them (redundant PSUs, redundant power providers). 3) Which Cluster-Management Software should be used? TIA Helmut Wollmersdorfer