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DMX, DMX2: Model numbers, basic differences, 3 Phase, Single Phase, Drive counts, Drives per loop

December 9th, 2008 7 comments

I have had many engineers and customers ask me about the basic differences on DMX and DMX2 machines. Based on some data I had put together a while back, here are the major differences on a DMXxxxx vs a DMXxxxx-P2 vs a DMXxxxx-M2-3, etc. 

The number of drives per loop: the lesser the drives on a single loop the better the performance. There are two different versions of drives per loop: one being the 9 drives per loop and the other one being 18 drives per loop. 

Following are all 18 drives per loop

 

DMX1000:   

Low Performance, 
1st Generation DMX, 
18 drives per loop, 
Single Bay with Single Phase power, 
144 drives max. 

 

DMX1000-M2:           
High Performance, 
2nd Generation DMX, 
18 drives per loop, 
Single Bay with Single Phase power, 
144 drives max.

 

DMX2000:                 
Low Performance, 
1st Generation DMX, 
18 drives per loop, 
Dual Bay with Single Phase power, 
288 drives max. 

 

DMX2000-M2:           
High Performance, 
2nd Generation DMX, 
18 drives per loop, 
Dual Bay with Single Phase power, 
288 drives max.

 

DMX2000-M2-3:        
High Performance, 
2nd Generation DMX, 
18 drives per loop, 
Dual Bay with Three Phase power, 
288 drives max. 

 

DMX3000-3:              
Low Performance,  
1st Generation DMX, 
18 drives per loop, 
Triple Bay with Three Phase power, 
576 drives max . 

 

DMX3000-M2-3:        
High Performance, 
2nd Generation DMX, 
18 drives per loop, 
Triple Bay with Three Phase power, 
576 drives max.

 

Following are all 9 drives per loop

 

DMX1000-P:              
Ultra Performance, 1st Generation DMX, 
9 drives per loop, 
Single Bay with Single Phase power, 
144 drives max. 

 

DMX1000-P2:            
Ultra Performance, 
2nd Generation DMX, 
9 drives per loop, 
Single Bay with Single Phase power, 
144 drives max.

 

DMX2000-P:              
Ultra Performance, 
1st Generation DMX, 
9 drives per loop, 
Dual Bay with Single Phase power, 
288 drives max.

 

DMX2000-P2:            
Ultra Performance, 
2nd Generation DMX, 
9 drives per loop, 
Dual Bay with Single Phase power, 
288 drives max. 

 

DMX2000-P2-3:         
Ultra Performance, 
2nd Generation DMX, 
9 drives per loop, 
Dual Bay with Three Phase power, 
288 drives max. 

 

Machines are categorized as a DMX and DMX2, The ones above with a P2 or M2 are DMX2. 

The new generation of DMX machine’s now available in the market are: DMX-3 and DMX-4. This blog article only talks about the DMX and the DMX2’s. 

 

Clariion FC & IP Series Hardware Components

December 8th, 2008 No comments

Greetings from the gambling city of NJ: Atlantic City. 

A nice day here, pretty cold but full of beautiful Christmas lights around here……..

I had posted a blog about all the hardware components on a CX series Clariion, apparently didnt realize hadnt posted anything about a FC & IP series machines. 

Some of the famous Clariion FC and IP models are

FC4700, FC5700, FC5300, IP4700

There are various Components in an EMC Clariion FC series of machines that are FRUs. 

Disk Drives
DAE’s (Disk Array Enclosure)
SPE’s (Service Processor Enclosure)
LCC (Link Control Cards)
LCC Cables
DAE Power Supplies
SP (Service Processor)
Battery
SPE PS (SPE Power Supplies)

 

EMC Symmetrix DMX3 and DMX4 Comparison

December 6th, 2008 1 comment


See how the DMX3 and DMX4 are compared side by side.  


Comparison is based on different DMX3 and DMX4 models for maximum number of drives it can support, total drive capacity, channels, global memory directors, max global and usable memory and different connectivity from host to the storage. 

With total number of drives fluctuating from 32 to 2400’s and capable of supporting more than 1 PB (PetaByte) of Storage onto a Single machine. 

With I/O Speeds going up to 4 GB on the Fiber Backend, its lighting fast. 

EMC Symmetrix – DMX Models by Cabinets Types

December 6th, 2008 1 comment

The below is the true breakdown of the type of the EMC Symmetrix and EMC DMX machines to the type of cabinet properties it has. 

Starting with the Symm 3.0’s EMC introduced a 1/2 Hieght cabinets, Single Full Cabinet and a 3 Cabinet machine. The same ideas went into the Symm 4.0 and 4.8. 

Starting the Symm 5.0 and into Symm 5.5, EMC introduced the Badger cabinets, which where much slimmer and about 5 ft in height, it was a disaster with those cabinets. Really no one bought it. 

Starting the DMX800’s and DMX1000’s which are the single cabinet, EMC introduced the DMX2000’s in 2 cabinets and DMX3000 in 3 cabinet style. 

Also if you ever wondered where those Symm modell numbers came from

1st Digit: 3 = Open Systems. 5 = Mainframe. 8 = Mixed.
2nd Digit: Related to Cabinet size, dependant on Generation’
3rd Digit: 00 = 5¼” Drives. 30 = 3½” Drives              

The DMX uses 31/2″ Fiber Drives