drg

Thank you for the answers. I am testing it on the 3x 500GB disks for now, not raid0 tier performance but it is very close on some tests I did, and even better in random IO for 2x/3x duplicates VMs. Going to see how well it will do during the trial.

Hello, first sorry for my bad English, it is not my first language, and if I missed some similar topic on this forum when searching for this info. I've heard about this software a long time ago and finally decided to test it after I had some issues with a raid6 array failing HARD in the middle of a rebuild and heard that it could speed up read performance in some cases. I currently have 1x SSD (OS), 3x 500gb HDs running in RAID0 and 2x 4TB in RAID1 for data. My use is around 80% read 20% write and most stuff is on the RAID0 array with a daily backup to the RAID1. The few things that I want to avoid to use a backup in case of failure is in the RAID1 array and the sparse access to those files is rapidly wasting the "load/unload cycle count" of those disks (the reason I lost the previous RAID6 array). From what I could understand from the manual/forum posts, the program is able to read the same file in parallel or many files for better IOPS from the duplicates right? Does it gets somewhere close to RAID0 in terms of MB/s reading a single file? And how is random IO? Assuming I don't set the pool to duplicate my Steam folder, it would it spread all files across the disks right? Could get some better random IO if that is the case? If I put those 4TB on their own pool with the asynchronous duplication, would one of the drives stay shutdown until the sync is done or would it be accessed before that? Last question, do I lose anything else than shadow copy by using the pool? Could I still use my defrag program on the disks?