Hi all, we have now almost configured our hardware for a HA cluster. We will use two IBM 3550 M2 servers, and I would like to ask you if you could share some experience about different disk configurations.
1) Using drdb, is having some hardware RAID on both machines good practice (for example 3 disks with RAID 5) or is it not necessary to do so as drdb is our network raid? I guess in case of failure of the drdb communication it would be good to have some additional raid security on each server. Does it affect the write performance a lot? 2) This machine has a maximum of 4 SAS slots, what would be good practice to install OS and data (2+2 disks with raid 1, or everything on 3 disks raid 5, o 4 disks raid 10?) Of course disk price is an issue, we would like to have 500 GB of data, which requires 3 300 Gb disks for raid 5. Thank you very much for any experience you can share! regards, Claus _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
