Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Dear All, As I asked in a couple of hours ago, I have simulated network failure, power failure for my HA file server. My last and major concern is, how to simulate the disk failure. The system has 5 disks (not raided, 4 completely share and 1 partially share). I want to confirm that, if any one of them fail, the failover will occur and the secondary will become the primary. I have 2 idea on mind on testing this:1) I plug out the ide cable to simulate hte failure; 2) I remove the dm_mod . First solution may not good because I can't estimate the consequence to the hardware. For the second solution, I get this idea from the CTH and it said it use iptable to simluation network failure and use DM to simulate disk failure. I don't really get the exact meaning of "DM". I guess it is that dm_mod. I check that dm_mode is something related to LVM2 disk mapper. I am not sure what is it about. So, if any one of you can give me some light on the simulation of disk failure? Thanks in prior Regards, Seki