speed in eva

 
godfather-1
Advisor

speed in eva

Hi

plese say me what is speed read/Write in eva 8400?

tanks.

3 REPLIES 3
Johan Guldmyr
Honored Contributor

Re: speed in eva

Host ports are all at 4Gb/s Fibre Channel.

 

Please define what you mean with read/write. There are a lot of "it depends".

godfather-1
Advisor

Hi I seen is how speed write data in eva and how speed re...

Hi

I seen is how speed write data in eva and how speed read data from eva.

please say me what speed copy od data on the eva.

tanks

Johan Guldmyr
Honored Contributor

Re: Hi I seen is how speed write data in eva and how speed re...

Speed can be fast. Good enough?

 

  • Do you want to know how fast it is when it's maxed out?
  • Or when there's three disk shelfs.
  • SSD/SAS/FATA drives.
  • What kind of copy - windows file copy. dd. iozone. Ior or what kind of benchmark??
  • Which cache size?
  • Do you want iops, transfer rate, line rate
  • What is the size of a normal IO? 
  • Speed from file server (with block storage from EVA) or from client behind a file server

 

The FC host ports are all at 4Gb = 400MB/s. See http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01677617&lang=en&cc=us&taskId=&prodSeriesId=3900918&prodTypeId=12169 for details.

 

So if you only look at fc connectivity then the max speed is 4Gb*$(amount of host/device ports) = 4*8=32Gbps = 3200MB/s.

Theoretical max.