Technical data

Solution Technology Overview
VMware Horizon View 5.3 and VMware vSphere for up to 2,000 Virtual
Desktops Enabled by Brocade Network Fabrics, EMC VNX, and EMC Next-
Generation Backup
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Table 1 lists the information about thresholds and their settings for VNX
Operating Environment (OE) for Block Release 33.
Table 1. VMX thresholds and settings
Threshold type
Threshold
range
Threshold
default
Alert
severity
Side effect
User settable
1%-84%
70%
Warning
None
Built-in
N/A
85%
Critical
Clears user
settable alert
Note: Allowing total allocation to exceed 90 percent of total capacity
puts you at risk of running out of space and affecting all applications that
use thin LUNs in the pool.
VNX FAST Cache, a part of the VNX FAST Suite, uses flash drives as an
expanded cache layer for the array. FAST Cache is array-wide, non-
disruptive cache available for both file and block storage. Frequently
accessed data is copied to the FAST Cache in 64 KB increments.
Subsequent reads and/or writes to the data chunk are serviced by FAST
Cache. This enables immediate promotion of very active data to flash
drives. This dramatically improves the response times for the active data
and reduces data hot spots that can occur within the LUN.
VNX FAST VP, a part of the VNX FAST Suite, enables you to automatically
tier data across multiple types of drives to balance differences in
performance and capacity. FAST VP is applied at the block storage pool
level and automatically adjusts where data is stored based on how
frequently it is accessed. Frequently accessed data is promoted to higher
tiers of storage in 256 GB increments, while infrequently accessed data
can be migrated to a lower tier for cost efficiency. This rebalancing of 256
GB data units, or slices, is done as part of a regularly scheduled
maintenance operation.
In many environments, it is important to have a common location in which
to store files accessed by many users. CIFS or NFS file shares, available from
a file server, provide this ability. VNX storage arrays can provide this service
along with centralized management, client integration, advanced security
options, and efficiency improvement features. For more information about
VNX file shares, refer to Configuring and Managing CIFS on VNX (300-013-
429) on EMC Online Support.
Organizations with remote office and branch offices (ROBO) often prefer
to locate data and applications close to the users in order to provide
VNX FAST Cache
VNX FAST VP
(optional)
VNX file shares
ROBO