Concept of Backplane exists with this generation of storage 	V-Max fits in the category of Modular Storage and eliminates the bottle neck of a backplane
Directors are connected to the system through a legacy backplane  (DMX – Direct Matrix Architecture). 	Engines are connected through copper RAPID IO interconnect at 2.5GB speed
Max Capacity: 1 PB Raw Storage 	Max Capacity: 2 PB of Usable Storage
Global Cache on Global Memory Directors 	Global Cache on local engines chips: again as cache is shared between multiple engines, cache latency is expected as multiple engines request this IO
256GB total vault on DMX-4 systems 	200GB of vault space per Engine, with 8 engines, we are looking at 1.6TB of vault storage
SRDF Technology Supported 	New SRDF/EDP (extended distant protection)
16 Groups on Single Port for SRDF 	64 Groups on Single Port for SRDF
SATA II performance on DMX-4 is better than V-Max 	The performance of SATA II drives on V-Max is bad the DMX-4 systems
Fiber Channel performance better compared to DMX and DMX-2’s. 	Fiber Channel performance compared to DMX-4 improved by about 36%
RVA not available on DMX-4 platforms 	RVA: Raid Virtual Architecture allows to have one mirror position for RAID volumes allowing customers to used the rest of the 3 positions for either BCV’s, SRDF, Migration, etc, etc.
Director count goes from Director 1 on the left to Director 18 (Hex) on the right 	Director count goes from 1 on the bottom to 16 (F) on the top, based on each engine having 2 directors. 8 Engines, 16 Directors.
Max Drives: 1900. On RPQ: 2400 max 	Max Drives: 2400
Solutions Enabler 6.0 	Solutions Enabler 7.0
4 Ports per Director 	8 Ports per Director
64 Fiber Channel total ports on all directors for host connectivity 	128 Fiber Channel total ports on directors/engines for host connectivity
512 byte style drive (format) 	520-byte style drive (8 bytes used for storing data check info). 
1 System bay, 9 Storage bays 	1 System bay, 10 Storage bays
Total Cache: 512GB with 256 GB usable (mirrored) 	Total Cache: 1024 GB with 512 GB usable (mirrored)
Concepts of Directors and Cache on separate physical slots / cards 	Concept of condensed Director and Cache on board
No Autoprovisioning groups 	Concept of Autoprovisioning groups introduced with V-Max Systems
Power PC chips used on directors 	Intel Quad Core chips used on Engines

128 hypers per Drive (luns per drive) 		512 hypers per Drive (luns per drive)

IOPS per PORT of V-Max Systems, 128 MB/s Hits,385 Read, 385 Write
IOPS for 2 PORT of V-Max Systems, 128MB/s Hits, 635 Read, 640 Write













Domain IDs concepts


What is the OS Fabric OS

Brocade DCX

Up to 512 external ports in a single chassis,
enabling high density SAN configurations with
reduced footprint.
•
Support for 1-, 2-, 4-, and 8-Gbps auto-sensing
Fibre Channel (FC) ports. Trunking technology
groups up to eight ports to create high pe
rformance 64-Gbps ISL trunks between switches.
(10-Gbps ports (FC10-6) are 10 Gbps only.)
•
Up to 1024 ports in the same rack can connect with the use of inter-chassis links (ICLs). Up
1536 ports can be connected via ICLs in adjacent racks.
•
Support for high-performance port
blades running at 1, 2, 4, 8,
or 10 Gbps, enabling flexible
system configuration.
•
Redundant and hot-swappable components make a high availability platform and enable nondisruptive software
upgrades for mission-critical SAN applications. 

FCIP, FCOE are supported

Up to eight hot-swappable port blade assemblies
that can be configured in a single chassis,
delivering up to 512 Fibre Channel ports.

Core switch blade (CR8) 5 Cable management comb
3 Control processor blade (CP8


Fabric Shortest Path First (FSPF) rerouting around failed links
•
Integration with Simple Network Ma
nagement Protocol (SNMP) managers
•
Automatic control processor failover
•
Nondisruptive “hot” software code loads and activation


Flash memory that stores two firm
ware images per control processor


Name server
•
Alias server
•
Zone server
•
Simple Network Management Protocol (SNMP) agent

Syslog auditing

NTP

LDAP integration

Role-based access controls (RBACs)


Control processor blades (CP8) can be
installed only in slots 6 and 7. Core switch
blades (CR8) can be installed only
in slots 5 and 8. 


 The configuration information for
the Brocade DCX is stored in the WWN cards an
d the flash memory of the CP blades