Yes – if there is no VP in the name then it can be used for either Fast Cache or Fast VP This is true for VNX1 – on VNX2 the naming of the drives in UniSphere just changed with the latest VNX OE  There are other internal reasons besides price for different SKU’s  If you look at the same matrix for VNX2 – it does differentiate between VP drives and drives that can be used for both [URL]  V4V seem to be VNX2 drives – or at least ordered as VNX2 drives  The software doesn’t use SKU’s – it uses part numbers and drive types
I've seen similar posts to this but I'm still looking to verify whether these drives are the same (SLC): FLV3VS6F-200U V3VS6F-200 V4VS6F-200 We have a VNX5300 which has several part numbers and it is getting reconfigured into new pools and FAST Cache, so I'm trying to validate which ones must be used for Cache or those that can't, but also for the sake of sparing.  Did the older VNX's only have SLCs and the eMLCs not become available until the VNX2's came out? I can see the following TLA parts in a VNX5300: 5050364EFD (originally purchased as FLV3VS6F-200U but also some came in under sku V3VS6F-200 if appears) 5049185 (appear to have been purchased as V4VS6F-200??)  The drives with the EFD at the end of the part number show up as SAS Flash but are those fundamentally different than SATA Flash? I looked at that drive compatibility guide that was referenced in another post for VNX5100 and VNX5300's but don't see the difference. I guess what is puzzling me is if the drives are the same why were they SKU'd differently for (and priced differently)?       thanks all!
are the EFDs in a VNX1 all SLC?