VM+RAC用于生产环境

jieyancai

注意oracle的VM不等于VMWARE的esx，不是一个公司的产品。

[ 本帖最后由 jieyancai 于 2010-9-13 15:35 编辑 ]

wolfop

没意义，VMWARE的IO损失太大，毫无意义。

jasoname

Wmware 太不稳定了吧 生产环境 没人用

whiterain

生产环境有人用的，我有个客户在esx3.5上使用了。看你想要什么了。。适合自己的就是最好的。

whiterain

oracle确实不支持在vmware上用rac了。

xjg

真不知道这样有什么意义？

好好一台物理机器，本来直接交给Oracle就最好了，非要在中间搞一层VM，然后再做RAC，晕。

好象是自找麻烦，可用性，性能什么的也看不出来会有好处。

jieyancai

原帖由 Kamus 于 2010-9-15 20:33 发表


自然，lz是问VM。
不知道为啥大家回答的都是vmware，vmware只是VM方案的一个产品而已

因为oracle的VM没有VMWAER的出名，呵呵，一般人容易误解。

star_zhang

不建议用，如果用这种架构，要确保你的硬件配置很高。

这个架构还有一个问题，就是vm会出现假死，数据处理量大的时候，vm会当机！

以上是个人看法！

xin1shou3

这里有人安装过Oracle VM + RAC吗？

谢谢！

原帖由 Kamus 于 2010-8-28 01:15 发表
Oracle VM + RAC 是有官方认证的。

Certified Software on Oracle VM

Oracle Database
   *      Oracle Database 10gR2 (10.2.0.3 and up) for Linux x86 and
Linux x86-64 1
   *      Oracle Database 11gR1 and 11gR2 for Linux x86 and Linux x86-64 1
   * Dynamic feature support:
         o Dynamic resizing of guest virtual machines are supported
(VCPU, memory and I/O) 2
         o Virtual machine Pause/Restore not supported with active
database instance
         o Live migration with active database 10.2.0.4 (10gR2) are supported

   * Database on Microsoft Windows guests will be supported as soon
as tests are completed.

1 See below for RAC
2 Dynamic change from 1 to 2 virtual CPUs (VCPU), 2 to 1 VCPU and
changes of 2 to 3 times the number of original virtual CPUs require
the following minimum Oracle Database levels:

  1. Oracle Database 10.2.0.4 + Patch 6309691, Patch 6311841, Patch 6311926
  2. Oracle Database 11.1.0.7

@ For Oracle OnDemand, Oracle Database 9iR2 (9.2) is supported as below
Oracle Real Application Clusters (RAC)

   * Oracle 10.2.0.4 (10gR2) and 11.1.0.7 (11gR1) and 11gR2 RAC for
Linux x86 and Linux x86_64 certified on Oracle VM
         o Guest OS: OEL 5.1 (and above) RHEL 5.1 (and above) for
Linux x86 / Linux x86_64
         o Paravirtualized (PV) mode only (Guest OS and drivers)
         o Only supported on Oracle VM 2.1.2 and above
         o Live-migration of an Oracle RAC VM is supported with
Oracle VM 2.2.1 and above. Previous versions are not supported. Please
refer to this link for best practices.
         o Over-committing CPUs is not recommended, but supported
with the following restrictions:
               + The total amount of VCPUs allocated to guest domains
(running Oracle RAC guests), should not exceed two times (2x) the
amount of real CPUs / cores in the Oracle VM server.
               + The amount of VCPUs allocated to a single guest
domain should not exceed the amount of real CPUs / cores in the Oracle
VM server.
               + Maintain Oracle VMs default VCPU allocation for
dom-0: Oracle VM will allocate 1 VCPU for each real CPU or core to
dom-0.
               + CPU pinning is only recommended for hard
partitioning. If no hard partitioning is required, CPU pinning should
not be used.
         o Static support only (dynamic support is being planned):
               + Dynamic resizing of guest virtual machine is not
supported (VCPU, memory and I/O)
               + Virtual Machine Pause/Restore of an active Real
Application Cluster virtual machine is not supported.

oraclinux

可以实验下 但生产下 就~~~~~~  呵呵