Am 10.07.19 um 05:01 schrieb Adam Goryachev: > On 10/7/19 12:31 pm, Reindl Harald wrote: >> so if you are paranoid about drive failures get 6x1 TB = 300 € with 3 TB >> useable which is exatcly between 3x2 RAID1 and 4x2 RAID10 :-) > > Assuming you are now suggesting 6 x 1TB in RAID10 with 2 mirrors (to get > 3TB usable) then you are still suffering from the 2 drive failures > causing loss of all data (although potentially you can lose 3 with no > data loss). i yet need to see an array with 6 different disks where 2 are failing at the same time which in this case needs to be the two right ones making a stripe-mirror.... at least you have decent write performance while a RAID1 with 6 mirrors sucks and about "OP advised their system can only support a maximum of 3 drives" i need to see that hardware - even the HP microservers have 4 slots and while my HP desktop from 2011 only "supports" 3 disks there are adapters to place a 2.5" or 3.5" disk or in case of SSDs 4x2.5" in a 5.25 slot the only hardware i ever seen with 3 slots are Apple X-Serve and i would throw them away anyways but also any other box not support RAID10 at all