vSphere 5.5 U1 and IBMv7000, very slow performance on SvMotion and clone (VAAI)

[Mikky83]

Hello,

I recently installed vSphere 5.5 U1 enviroment with IBM Storwize v7000. Migration from IBM DS3500 storage looks very promising with arround 200-250MBps write transfer on v7000. But after migration SvMotion between two v7000 LUN's dissapoint it me. I google a little bit and found similar cases linked with VAAI and hardware acceleration. Yes, all v7000 Datastores have hardware acceleration support, but it's not usable. I have latest 7.2.0.4 firmware level on v7000 and latest vSphere. When I set to 0, hardware accelaration in advance settings->DataMove, SvMotion is far far better then before. It's a little bit frustrating about VAAI performance. So someone to have similar experiance with v7000?

Thanks,

[Mikky83]

Hello,

Anyone with similar issue. I still have problems with VAAI performance after updating my environment. I have a plan to upgrade v7000 to v.7.6.2 and my vmware to 5.5 U3 (6 is not supported by HS22 blades).

Thanks,