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EMC Symmetrix DMX-3 Product Guide
Performance and Optimization
◆ Creation and management of thin pools — Ability to create and
manage multiple thin pools. Reduces risks by providing a
mechanism for isolation of workloads from each other to ensure
that they do not affect each other’s performance or availability of
storage space.
◆ FBA devices — Virtual Provisioning supports FBA (Fixed Block
architecture, normally associated with open systems) devices. No
CKD or iSeries support for Virtual Provisioning.
◆ Replication products to be Virtual Provisioning aware — Both
local and remote replication will be supported with thin devices:
• TF/Snap of thin device
•TF/Clone
•SRDF/S
•SRDF/A
•SRDF Data Mobility
• ORS pull; hot and cold
Restrictions include the following:
• All thin device source volumes are replicated as thin devices
(a “thin-to-thin” relationship is maintained.)
• TF/Mirror is not supported with thin devices.
• SRDF/Concurrent and SRDF/STAR are not supported with
thin devices.
• Enginuity 5773 is required on both the source and target
systems for SRDF to support R1 and R2 thin devices.
• ORS Push is not supported with thin devices.
•RAID 5 (7+1) is not supported.
•Replication will not be supported with RAID 5 (3+1) data
devices.
◆ Metavolumes supported — Metadevices can be created out of
thin devices as long as all meta members are thin devices. There
are no mixing of thin and normal devices in the same metadevice.
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