VMware 假造化平台筹划计划方案

•RDM: Configurations using shared storage for Quorum and/or Data must be on Fibre Channel (FC) based RDMs (physical mode for cluster across boxes "CAB", virtual mode for cluster in a box "CIB") in vSphere 5.1 and earlier. RDMs on storage other than FC (iSCSI and FCoE) are only supported in vSphere 5.5..

•VMFS: Virtual disks used as shared storage for clustered virtual machines must reside on VMFS datastores and must be created using the EagerZeroedThick option. This can be done using the vmkfstools command from the console, the vSphere CLI, or from the user interface. To create EagerZeroedThick storage with the vmkfstools command:

1.Log into the console of the host or launch the VMware vSphere CLI.

2.For example, to create a 10 GB file in datastore1 named myVMData.vmdk, run the command:

▪Using the console:vmkfstools –d eagerzeroedthick –c 10g /vmfs/volumes/datastore1/myVM/myVMData.vmdkNote: Replace 10g with the desired size.

▪Using the vSphere CLI:vmkfstools.pl –-server ESXHost –-username username --password passwd –d eagerzeroedthick –c 10g /vmfs/volumes/datastore1/myVM/myVMData.vmdk

•To create EagerZeroedThick storage with the user interface:

1.Using the vSphere Client, select the virtual machine for which you want to create the new virtual disk.

2.Right-click the virtual machine and click Edit Settings.

3.From the virtual machine properties dialog box, click Add to add new hardware.

4.In the Add Hardware dialog box, select Hard Disk from the device list.

5.Select Create a new virtual disk and click Next.

6.Select the disk size you want to create.

7.Select the datastore with the virtual machine or select a different datastore by clicking Specify a datastore and browsing to find the desired datastore.

8.To create an EagerZeroedThick disk, select Support clustering features such as Fault Tolerance.Note: Step 8 must be the last configuration step. Changes to datastores after selecting Support clustering features such as Fault Tolerance cause it to become deselected.

Complete the wizard to create the virtual disk.

按照以往履历，假如数据库的巨细<800G，提议行使VMFS名目，假如数据库巨细>800G，可以思量行使RDM方法。

必要配置的共享盘：心跳盘，数据库用到的磁盘(NEC Cluster配置必要磁盘多宿主)。

在行使NEC Cluster时辰，主应用假造机应承迁徙，但不配置回切。在主备假造机之间配置关联法则：互斥，停止应用双机同时迁徙到统一台ESXi主机上。

配置NEC Cluster共享盘时， 心跳磁盘巨细大于200M以上即可，行使VMFS方法。

配置集群IP时：分为Service IP(对外)，public IP(打点)，private IP(心跳)。Service IP与public IP在统一网段内，private IP单独筹划出一个网段，做到收集断绝。

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