Morbo wrote:
Yes, systems are identical.
The only difference is that the system with normal spare size have adaptive flash cache enabled.
It went like this:
We`d decided to try to use AFC on both systems.
We succefully enabled it (256GB in size) on one system.
But on the other, it failed to enable with error "Could not find enough available disk space."
After that we started to investigate and found overusage of spare space on this system.
I`ve run admithw on 3par, but it has no effect.
Should i run tunesys also?
If you compare "showpd -c" on both systems. Is it only the SSDs that have double spare capacity or is it the same for all drive types?
You could try and do "setsys SparingAlgorithm Minimal" and admithw again. It should reduce (but it should reduce it more than you want). Reduced sparing will allow for less hardware failure before you risk data loss.