User manual

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Optimize iSCSI performance
In the environments that require high performance storage, such as virtualization, users
are recommended to do the following to optimize the iSCSI and NAS hard disks
performance:
Use instant allocation: When creating an iSCSI LUN, select “Instant Allocation” to
achieve slightly higher iSCSI performance. However, the benefits of thin provisioning
will be lost.
Create m ultiple LUNs: Create multiple LUNs according to the processor number of
the NAS. The information can be checked in “System Status” > “Resource Monitor.”
If the NAS has four processors, it is advised to create four or more LUNs to optimize
the iSCSI performance.
Use different LUNs for heavy load applications: Spread the applications such as
database and virtual machines that need high Read/Write performance on different
LUNs. For example, if there are two virtual machines which read and write data
intensively on the LUNs, it is recommended to create two LUNs on the NAS so that
the VM workloads can be efficiently distributed.