On Wed, 28 Oct 2009 19:44:53 -0400, Madison Kelly wrote > Branimir wrote: > > Hi list ;) > > > > Well, here is my problem. I configured a few productions clusters myself > > - mostly HP Proliant machines with ILO/ILO2. Now, I would like to do the > > same thing but with ordinary PC hardware (the fact is my wife wants me > > to reduce the number of my physical machines ;)). I have three more/less > > same PCs, all running CentOS 5.4 with Xen hypervisor. One of them would > > be a storage with tgt to handle iSCSI targets. > > > > To be honest, and what bothers me the most is that I don't have a clue > > what to use as a fence device? I took ILO for granted, but for me this > > is completly new. Can you offer some advice? > > > > Thanks in advance! > > > > Cheers! > > > > Branimir > > You know, I've been wondering the same thing now for a little while and > had figured it just wasn't possible. I had seen a design a couple of > years ago for a serial to reset switch home-brew fence device but I've > not been able to find it since. The biggest thing about it was that the > author mentioned that, on POST, the serial port would run high and > trigger a reset so s/he designed a catch (a cap?) that would put a small > enough delay to prevent this POST->fence issue. Personally, I've been > thinking of a way to make an inexpensive USB -> reset switch, maybe even > an addressable one so that I could have a hub of sorts for a 3+ nodes > cluster. > > Back to your question; I don't know of a canned solution, but would be > quite interested if you found one. If you find an answer off list, do > please update this thread! > Well it is not great solution, but a really cheep one: http://lan.neomontana-bg.com/picoip.php - this device have 16 Out ports on which you can attach up to 4 boards with 4 relays http://lan.neomontana-bg.com/RelayBoard.php The device have also 8 In ports, web interface and may be controlled with snmp for which a fence module can be easily made translated versions from google: http://translate.google.com/translate?prev=hp&hl=en&js=y&u=http%3A%2F%2Flan.neomontana-bg.com%2Fpicoip.php&sl=bg&tl=en&history_state0= http://translate.google.com/translate?prev=hp&hl=en&js=y&u=http%3A%2F%2Flan.neomontana-bg.com%2FRelayBoard.php&sl=bg&tl=en&history_state0= > Best of luck! > > Madi > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
