SSD and normal HDD as RAID1 (HW-Raid LSI)

[ludwig jaffe]

Hi,

I think about improving speed of my box.
I have SAS-Disks of 698GB as RAID1 on my LSI
SAS-RAID-Controller.
So what about replacing one of the Disks with an
SSD by SAMSUNG e.g. 850 series?

So if the SSD drops some electrons the HDD will keep
up with data and the SSD will be quicker then the HDD
while reading.

Will this work?

Are there any people who tried such a raid1?

Cheers,

Ludwig

[Unman]

Haven't tried it: you will definitely crock the write speed on SSD, and
may see improvements on read. That will depend on the controller - some
controllers bias toward SSD, others distribute the reads, in which case
you would probably see very little improvement.