[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

[dm-devel] Cluster dilemas...



	Hi
I have IBM Blade Center connected to IBM DS 4300 (former FASTt 600) disk system. The blades are diksless machines and they are connected to storage via fc switches, so I have 4 physical patchs to each disk. My dilemma is as follows: I wont to run Red Hat cluster suite on at least two servers and since I'm building systems from the beginning I'd rather use RHEL4 since it's newer, faster, more reliable (add more marketing bullshit here) etc. But HBA drivers that support multipath fail over are only in RHEL3 on RHEL4 there is something called dm + device-mapper-multipath but it is in beta stage :( So I'd like to ask You three things: 1. Is Red Hat cluster suite much different in RHEL3 then in RHEL4. Because if there is no big difference maybay it's not worth to fight with RHEL4 HBA drivers and just install RHEL3, and when RHEL4 will have proper drivers just upgrade? 2. Do You have any experience with "dm + device-mapper-multipath". To be sure this "beta stage" worries me a lot. But maybay You have some information when it will be in official release of RHEL4 (U2??), and most important: is it stable solution, and can it work in "production sewers" 3. What do You think of solution RHEL4 without multipath failover (so I'll see 4 paths, and in case of primary path failure at least one node will crush) + Red Hat cluster suite? I'm thinking off it in case problems with HBA drivers and some new functionality in Red Hat cluster suite in RHEL4

Kind Regards
Piotr


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]