3道237题目请教

newhu114

1、a cluster with 10 adapter per node is converted to use IPAT address takeover via IP aliasing.During the conversion,the customer ran out of IP subnets in the allocated range.What feature in the HACMP can help resolve this issue?
A.disk based heartbeats
B.heart beating via aliasing
C.ip aliases for the non-service addresses
D.a single subnet for all non-standby adapters

2、 a custer has decided to implement virtual hosts in their web server.the current estimate is to create six virtual hosts with unique URL's and IP addresses. the solution is going to usethe IP aliasing function in HACMP. how many resouce groups are required to support this configure.
A.1
B.2
C.6
C.7

3、during the initial cluster design,a disk heartbeat,point-to-point non-ip network is being planned as part of a three-node cluster implementation. the disk enviroment will use LVM mirroring for disk redundancy. the volume groups will be created as Enhanced Concurrent Capable. To facilitate disk heartbeating,how many disks per node and how many networks will be required?
A.one disk per node,on network
B.two disks per node,one network
C.two disks per node,six networks
D.two disks per node,three networks

yanbing

个人看法：
1。C
2。A
3。D

newhu114

第二题想不通为什么用1个RG就可以搞定。
第三题的答案是C，我也是选D

yanbing

第二题很容易理解啊！

一个RG可以有多个svc ip啊！

第三题就不知道了！！！

我现在觉得第一题倒有可能是D。。

看来237的题目确实有难度。。。主要都是平时碰不到的方式

newhu114

如果在一个RG上配置了多个service ip，那么如何进行takeover呢

dujun1977

这位仁兄的题是从哪里来的？是你考试的时候记下的吗？

feiaix

第一题感觉可以是B吧.

feiaix

IP aliases used for heartbeat
These IP addresses are allocated from a pool of private, non-routable addresses,
and are used to monitor the communication interfaces without the need to
change their base (boot) IP address.
This is useful in certain cases when it is not desirable to change the base IP
addresses (as they are defined in AIX) of the network adapters on each node,
Note: It is possible to configure one persistent node IP label (address) per
network per node. For example, if you have a node connected to two networks
defined in HACMP, that node can be identified via two persistent IP labels
(addresses), one for each network.
Restriction: It is not possible to configure a persistent node IP label on the SP
Switch, on ATM Classical IP, or on non-IP networks.
Chapter 2. Planning and design 27
and those addresses do not conform to the HACMP requirements (they are in
the same subnet, so the network adapters cannot be monitored).
For this purpose, HACMP provides the usage of heartbeat over IP aliases.

saintyy

没事老做题！又是一个应试教育下的孩子！
戴帽子的 好久没见 难得出来 露两手！
开始休假 上来逛逛 发发牢骚 不好意思啦！
哈哈哈阿

yanbing

呵呵，你看看我回帖子的时间啊！有段日子没做题了。。。。

我师父这个星期也休假呢！你这个id不会就是我师父吧！要真是那样可就失敬失敬了，呵呵