Possibly a stupid question: did you enable the write cache ?

Hi, see page 7 here:

http://www.emc.com/microsites/clariion-support/pdf/ax45_hardware_overview.pdf

"DPE-AX systems with two SPs support write caching for increased performance."

Single Processor AX4 cannot have write-cache enabled as a safety-measure against data loss.

You can upgrade your single Processor AX4 to a Dual Processor AX4 with the following part number: AX4-5ISC-DP (upgrade from single to dual processor for iSCSI AX4).

Hope it helps,
Andrea

How many SP's does your AX have ? Andrea might have a valid point here

Giubec and Andrea, welcome to the forums ! Nice place, Verona

Let me know if you will be in the nearby for your holidays!

Single SP = No Cache
Netx week install 2nd SP and SPS for activate the Write Cache
Many thank at all

Please mark your question as being answered and reward people who contributed.
You can hand out 1 "correct" and 2 "helpful's".

At least the 2ND SP and SPS are arrived
The Transfer Rate now is correct , over 100 MegaBytes/S
Many Thank at all
Giubec

Are any of the answers helpful or correct besides the one you already marked ?

I'm glad it's working fine now