Unsolved
This post is more than 5 years old
19 Posts
0
501
ACOFW and VMAX enginuity 5875
I would like to know if TF/Snap Async copy on first write (ACOFW) is supported for thin devices on a VMAX with 5875 code and how is performance impacted if both the source and target (VDEVs) are written to simultaneously.
I am trying to move away from a clone to a snap design if ACOFW can provide good performance without a COFW penalty for my nightly batch job - both the source STD dev and target (VDEV) would be written to simultaneously.
sauravrohilla
859 Posts
0
January 11th, 2012 08:00
Hi Ashish,
Iits supported from 5773 Q1,10 release and higher (5875 ofcourse).. Also if I am right, ACOFW is only for writes on source device. If you are writing to target devices, it will still use sync COFW and pay COFW penalty..
regards,
Saurabh Rohilla
ashish2009
19 Posts
0
January 12th, 2012 14:00
Thanks for the answer Saurabh, I have logged a case with EMC to get a definite answer about ACOFW
sauravrohilla
859 Posts
0
January 12th, 2012 17:00
Thats the right thing you did... do post the suggestions u get from support.
regards,
Saurabh