Hi I have just built a 15 drive system as follows:
i7 920 18Gb RAM 2x IBM M1015 (Will IT firmware) in the end I decided on 16 3Tb 7200rpm Seagate drives, for performance.
The user I am building it for has a couple of Equalogics and a load of Nexentas (which I am phasing out for licence reasons).
He has said he want two drives as hot spares (so that leaves 14) and the rest in one array. Noting a comment about not having one vdev that means I would be best to group this as two vdevs.
So I have read as much documentation as possible and I am not entirely clear what is the best way to go. He will be using this for a lot of virtual Esxi machines viewed as iSCSI from esxi servers.
I could set up two RaidZ3 groups of 7 (is this two vdevs) and then somehow join them together, seems a bit awkward.
Also they are software developers logging lots of packets of small data, so I am not sure this is optimal performance. My feeling is that we should do two different configurations on the system one a group of drives configured for performance and another group for speed. Then they could chose where to put the vm based on which was best.
Thanks in advance.
i7 920 18Gb RAM 2x IBM M1015 (Will IT firmware) in the end I decided on 16 3Tb 7200rpm Seagate drives, for performance.
The user I am building it for has a couple of Equalogics and a load of Nexentas (which I am phasing out for licence reasons).
He has said he want two drives as hot spares (so that leaves 14) and the rest in one array. Noting a comment about not having one vdev that means I would be best to group this as two vdevs.
So I have read as much documentation as possible and I am not entirely clear what is the best way to go. He will be using this for a lot of virtual Esxi machines viewed as iSCSI from esxi servers.
I could set up two RaidZ3 groups of 7 (is this two vdevs) and then somehow join them together, seems a bit awkward.
Also they are software developers logging lots of packets of small data, so I am not sure this is optimal performance. My feeling is that we should do two different configurations on the system one a group of drives configured for performance and another group for speed. Then they could chose where to put the vm based on which was best.
Thanks in advance.