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Issues adding SATA Flash & SAS Flash in a VNX storage pool?
Since I can't find information via support.emc.com, I'm going to ask the community. Has anyone experienced issues with a Gen 1 VNX, adding "SAS Flash" drives (Hitachi) and "SATA Flash" drives (Samsung) into a storage pool? I have seen issues created a traditional RAID Group doing this,but didn't know if this would cause an issue with storage pools. Below is a screen shot of difference I'm talking about.
Any / all help is appreciated.
Storagesavvy
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January 15th, 2014 10:00
For VNX1, It should not matter, a 200GB SSD is a 200GB SSD on VNX, regardless of SATA vs SAS or manufacturer.
In VNX2 systems, there are 2 types of SSD however. eMLC for FASTVP only and SLC(same as VNX1) for FASTVP or FASTCache. They will be indicated as such in the GUI.
shofmannn
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104 Posts
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January 16th, 2014 01:00
I have SATA Flash and SAS Flash mixed up in one Pool using FAST VP. No Problem until now.
jwardnsi1
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January 16th, 2014 05:00
Rich & Sebastian_H, thanks for the validation!
edward_morrison
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March 25th, 2014 13:00
Where do you see this in the GUI?
dynamox
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20.4K Posts
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March 25th, 2014 17:00
System > Hardware > Disks
then click on a little wrench and add "TLA Part Number" Column. Now look at this link, it provides what drives can be use for Fast Cache or Fast VP
https://support.emc.com/docu48859_VNX5200,-VNX5400,-VNX5600-VNX5800,-VNX7600-and-VNX8000-Storage-Systems-Disk-and-OE-Matrix.pdf?language=en_US