2 HUAWEI OceanStor 18000 Series Enterprise Storage Systems 2.1

Best Practice of Microsoft Exchange Server 2010 Based on HUAWEI OceanStor 18000 Series

Enterprise Storage Systems

Number of Member Disks in a RAID Group

 Five or nine disks to for a RAID 5 group

 Six or 10 disks for a RAID 6 group

 Four or eight disks for a RAID 10 group

5.1.3 LUN Configuration

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Owning controller

The OceanStor 18000 series contains four controllers. It is advisable to distribute all

LUNs evenly on the four controllers for load balancing

Stripe depth

In a RAID 6 group, it is advisable to set the stripe depth of a LUN to 128 KB with the stripe size smaller than or equal to 1 MB.

In a RAID 10 group, it is advisable to set the stripe depth of a LUN to 128 KB.

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Write policy

It is advisable to set the write policy to write back and mirror in most scenarios but to

write through in scenarios where high demands are imposed on availability and not on performance.

Prefetch policy

Setting the prefetch policy to no prefetch is recommended.

5.1.4 Host and Host Group Configuration

This function allows you to create and manage hosts so that the hosts can use the storage resources allocated by the storage system. To easily manage hosts, you can create a host group, which is similar to VMware cluster management.

The best practice of creating hosts and a host group for VDI is as follows:

 When creating a host, name it after the ESXi host name or the last two parts of the host

IP address for easy management and maintenance.

 When creating a host, set OS to VMware ESX.

 After creating a host, modify its initiator and add ALUA support.

When creating a host group, match it with a VMware cluster and name it after the cluster name for easy management and maintenance.

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