Which storage server to choose?

Question

NAS

Good afternoon.
There is a task to organize disk servers (24 disks each) for storing the stream from video recorders and subsequent viewing and sampling (if necessary). RAID 6 will be assembled, work with iSCSI. Recorders will most likely be Trassir Neurostation with 128 channels. For now, we are considering solutions from SrvLegion (SRV|LEGION SL1000/4U24RG4) with LSI 9361-4i and ICT (RackNode™ RN4-SS24) installed. Network connection via two edgeswitch 16xg.
On the first one, you can install any axis, the second one runs on Enterprise Storage OS (ESOS).
The opinion of those who worked with this equipment is interesting: can these servers cope with such a stream while viewing the video archive at the same time? Or can you advise what other solutions can be seen?
Thank you.

Answer 1

In general, we decided and dressed up for a long time, in the end we settled on SuperMicro 4U Server 2 x E5-2623v4 32GB LSI 9361-8I SGL 12Gb/s / 240GB SSD Intel S4510/ 2x10Gb/ 2x920W/ Intel Ethernet Server Adapter 5210-DA2 10Gb Dual servers Port, SFP. So far, each server has 100-120 cameras.
It turned out that Trassira's software does not like having one large RAID array, then they did not split it into LUNs, they left the disks without RAID at all, as Trassira's TP recommended.
Why didn't they start making a separate storage - we tried this option on the test, it did not suit us.
Gradually we will load with analytics and see how the servers will behave.

Answer 2

I recommend looking in the direction of distributed storages, in particular, building a CEPH cluster . You have many servers. You will connect them with a 10G network, put iSCSI on distribution, and in some cases, if the clients are under linux, then connect directly. You will have distributed storage on all disks at once. It will be possible to do caching on SSD, and transparent addition of disk resources, and transparent recovery, and a bunch of good things.
There are, however, small requirements for servers, per gigabyte of RAM per terabyte of disk. If you stick 24 terabyte disks, then put 24 gigabytes of memory. But it's not a problem. In this case, you will not need RAID cards at all, ordinary HBAs and extenders will suffice. Each disk will be separately monitored and administered by CEPH itself. It will also do duplication and distribution of data across disks and cluster servers. Performance will certainly be better than when writing to a separate server, since writing.reading occurs in parallel to several servers in the cluster.
Additionally, you will get snapshots, management flexibility and very good fault tolerance.

Answer 3

How much data do you plan to store? And how many servers? 24 disks per server is not enough for a storage server? I know SuperMicro has a server for 45-60 drives (model SSG-6049P-*)

Answer 4

The one for which there is technical support and service in your city.