9.0 HP StorageWorks P4000 VSA Installation and Configuration Guide

• Reserved memory based on total disk capacity, as listed in Table 8 on page 24.
Table 8 Memory requirements for VSA disks
Requires at least this much memoryTotal capacity of all installed disks
ESX Server
• 384 MB
• 1 GB
• 2 GB
• 3 GB
• ≤ 500 GB
• 500 GB to 4.5 TB
• 4.5 TB to 9 TB
• 9 TB to 10 TB
Hyper-V
• 1 GB
• 2 GB
• 3 GB
• ≤ 500 GB up to, but less than 4.5 TB
• 4.5 TB up to, but less than 9 TB
• 9 TB up to, but less than 10 TB
• A single virtual CPU with at least 2000 MHz reserved.
NOTE:
The Hyper-V installer assigns 1000 MHz by default.
• A connection to a virtual switch or virtual network with at least a Gigabit network connection.
• Virtual disk(s) with 5 GB to 2 TB (2047 GB for ESX, 2040 GB for Hyper-V virtual machines) of
space per disk located on internal disk storage, or direct attached storage that is not accessible
from more than one physical server. (Note that the SAN/iQ software OS consumes a small amount
of the available space.)
• For ESX Server, the first virtual disk must be connected to SCSI address 1:0.
• For Hyper-V, the first virtual disk must be connected to the first SCSI Controller.
• All virtual disks for the ESX version VSA must be configured as independent and persistent to
prevent VM snapshots from affecting them.
• Virtual disks for Hyper-V version VSA must be fixed, not dynamic.
• The VMFS datastore or NTFS partition for the VSA must not be shared with any other VMs.
• Two or more VSAs on separate physical servers with Network RAID-10, and a Failover Manager
is the minimum configuration for high availability with automatic failover.
Two or more VSAs on separate physical servers can be clustered with a Virtual Manager for
manual failover.
Best practices
Other configuration recommendations are useful to improve the reliability and performance of your
virtual SAN. Consider implementing as many of these best practices as possible in your virtual SAN
environment.
Each VSA should meet the following conditions, if possible.
• Have a virtual switch or virtual network comprised of dual Gigabit Ethernet or more. Providing
network redundancy and greater bandwidth improves both performance and reliability.
Designing a virtual SAN24