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Morning dude,
I was shocked by TruCluster When i started to help manufacture customers to setup high availability environment with Tru64 Unix on Alpha System.
I said, WoW , the cluster is the strongest HA cluster i've seen that can support real time sync data between nodes via special technology (we called it memory channel - A kind of HBA adapters on all nodes) . Ofcoz the whole system has sucessfully implemented SSI (single system image).And now days, people know OCFS from Oracle, but a few years ago, Alpha already has it's VERY mature clusterwide filesystem by it's TruCluster.
Let's back to Oracle RAC:
- A not so mature ocfs , standalone clulster-aware(even not cluster-wide),
- A replacement solution but only stick on Oracle data management - ASM which support clusteraware storage too.
- A cache fusion core to support sync data between nodes, but limited to Oracle
anyway, Oracle learns faster, they made it possible to deploy a real time SSI Database Cluster with complete high availability on linux platform.
Try to access otn.oracle.com and check out linux section, there are 9i/10g RAC step by step guides for you . Furthermore, a guru who wrote series articles to instruct you setp by step installing Oracle RAC on Linux with IEEE1394 system also can be searched. Very interesting? yep,that's made me happy for several weeks. ( but buddy you've to purchase Maxtor OneTouch Button IEEE1394 hardisk and enclosure to support two concurrent I/O block access from two nodes, suppose they are two standalone PC).
Metalink account(metalink.oracle.com) will booth you directly to getin know everytihing arround RAC.
I' don't want to explain more on how do these modern HA clusters to solve the node dead/rebooting/hang situation because you can obtain those information easily from their official website. Some of them even provide evaluation copy of the cluster software as well.
To me, i'm an experienced HP MC/SG cluster guy, so i can explain your further question on this HA product if you really wanna give a shoot.
docs.hp.com --> high availability -> MC/SG for linux Admin guide + toolkit guide witll be a good start point.
www.steeleye.com provide lifekeeper for linux, another pretty nice , well designed HA cluster for people who love to do so.
[ 本帖最后由 nntp 于 2005-12-6 05:12 编辑 ] |
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