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Anyone using Storage Spaces Direct (S2D)?
- Thread starter natelabo
- Start date
we're playing with s2d since early tp4
it works rather well but has numerous drawbacks: 4 nodes to start from and datacenter license everywhere
1 gbe is nothing ..
you need not only 10 gig ethernet but also rdma capable hardware to put s2d into production
Hardware options for evaluating Storage Spaces Direct in Technical Preview 4
"Network interface cards
Storage Spaces Direct requires a minimum of one 10GbE network interface card (NIC) per server.
Most configurations, like a general purpose hyper-converged configuration will perform most efficiently and reliably using 10+ GbE NIC with Remote Direct Memory Access (RDMA) capability. RDMA should be either RoCE (RDMA over Converged Ethernet) or iWARP (Internet Wide Area RDMA).
If the configuration is primarily for backup or archive like workloads (sequential large IO) it can be a 10GbE network interface card (NIC) without Remote Direct Memory Access (RDMA) capability."
it works rather well but has numerous drawbacks: 4 nodes to start from and datacenter license everywhere
1 gbe is nothing ..
you need not only 10 gig ethernet but also rdma capable hardware to put s2d into production
Hardware options for evaluating Storage Spaces Direct in Technical Preview 4
"Network interface cards
Storage Spaces Direct requires a minimum of one 10GbE network interface card (NIC) per server.
Most configurations, like a general purpose hyper-converged configuration will perform most efficiently and reliably using 10+ GbE NIC with Remote Direct Memory Access (RDMA) capability. RDMA should be either RoCE (RDMA over Converged Ethernet) or iWARP (Internet Wide Area RDMA).
If the configuration is primarily for backup or archive like workloads (sequential large IO) it can be a 10GbE network interface card (NIC) without Remote Direct Memory Access (RDMA) capability."
storage spaces are software raid
think about storage spaces + refs = poor man's ZFS
storage spaces direct are vsan from microsoft basically
but expensive vsan really
think about storage spaces + refs = poor man's ZFS
storage spaces direct are vsan from microsoft basically
but expensive vsan really
Schmeisser
n00b
- Joined
- Jan 18, 2016
- Messages
- 35
Olga-SAN 4 nodes? I guess you're playing with an earlier WS 2016 TP.
In the latest version it does support 3-node S2D scenario. So it's already 25% less.
However, no optimization from Microsoft comes for free, so in a 3-node S2D cluster you can only lose 1 drive before the system goes offline.
Properly designed replicated local storage systems like StarWind VSAN can lose up to 4 drives in a 2-node config and still be operational. This is what happens when you do RAID 1 over local RAID 5/6/10. BTW Another vendor with that level of resiliency is Simplivity.
Still scratching my head thinking why is MS trying to build their own storage thing instead of just buying out StarWind...
In the latest version it does support 3-node S2D scenario. So it's already 25% less.
However, no optimization from Microsoft comes for free, so in a 3-node S2D cluster you can only lose 1 drive before the system goes offline.
Properly designed replicated local storage systems like StarWind VSAN can lose up to 4 drives in a 2-node config and still be operational. This is what happens when you do RAID 1 over local RAID 5/6/10. BTW Another vendor with that level of resiliency is Simplivity.
Still scratching my head thinking why is MS trying to build their own storage thing instead of just buying out StarWind...
nah windows server 2016 tp5
3 nodes yes but you can lose only 1 disk
if you don't do 3 copies of data of course
which is expensive
What’s new in Storage Spaces Direct Technical Preview 5
Deployments with 3 Servers
Starting Windows Server 2016 Technical Preview 5, Storage Spaces Direct can be used in smaller deployments with only 3 servers.
Deployments with fewer than four servers, support only mirrored resiliency. Parity resiliency or multi-resiliency are not possible, since these resiliency types require a minimum of four servers. With 2-copy mirror the deployment is resilient to 1 node or 1 disk failure, and with 3-copy mirror the deployment is resilient to 1 node or 2 disk failures.
3 nodes yes but you can lose only 1 disk
if you don't do 3 copies of data of course
which is expensive
What’s new in Storage Spaces Direct Technical Preview 5
Deployments with 3 Servers
Starting Windows Server 2016 Technical Preview 5, Storage Spaces Direct can be used in smaller deployments with only 3 servers.
Deployments with fewer than four servers, support only mirrored resiliency. Parity resiliency or multi-resiliency are not possible, since these resiliency types require a minimum of four servers. With 2-copy mirror the deployment is resilient to 1 node or 1 disk failure, and with 3-copy mirror the deployment is resilient to 1 node or 2 disk failures.