I consider replacing old DS with V5000 and got a novice question about EasyTier. I understand with EasyTier data are moved between different MDisks, therefore (considering reliability of the SSDs) it is recommended to use RAID protection for the SSD MDisk.
Is it possible, though, to use HDD as a hot-spare for SSD MDisk? I am aware of the performance implications, just wonder if this would be possible?
Also, is there any danger in using RAID 5 for SSD pool? Without moving parts in SSD, the difference in write speed should only be the time required to calculate the checksum and surely V5000 should have enough power to cope with that? Or should one stick to RAID1/RAID10?
Thanks in advance!