TFD Sea10 – NEC HYDRAstor
- NEC is very environmentally aware and has some very strickt rules about every innovation has to be more environmentally friendly than the product it replaces.
- NEC is active in very many industries, from space engineering to construction.
Mini HYDRAstor
The Mini HYDRAstor is the same as a regular HYDRAstor, but the storage and accelerator nodes are both in one chassis.
- GA’d June 30th 2010
- Same code base as it’s bigger brother.
HYDRAstor
- Two tier approach
- Accelerator nodes (XEON based arch)
- Storage nodes
- Unrestricted expandability.
- Each tier is independently expandable, so we have scale-up and scale-out.
- Each node can be independently replaced by new equipment if available, without disruption. NEC calls this Adaptive Grid Storage.
- All the modern techniques are available, like Thin provisioning (not sure about zero-page-reclaims though.
- All nodes are interconnected through 1Gbs interfaces. The SN have 4 ports each.
- Global Inline De-Dupe
- Application aware De-Dupe (based on profiles selected during creation of the share). The SN knows what part of the incoming data is user data and what part is meta data. After separating this data, the dedupe only is done on the user data. This enables better De-Dupe ratios.
- HYDRAstor comes with 1 Storage Node for every 2 Accelerator Nodes.
- Filesystem size is 256PB by default.
- Shares can be on NFS or CIFS (SMB1 though).
- CIFS and NFS mountpoints can not be the same filesystem. They have to be separate filesystems.
- WORM FS (HYDRAlock)
- Licencing is based on the feature and the number of accelerator nodes it is configured on.
- RepliGrid – allows for data to be sent offsite for DR purposes (aSYNC).
- HYDRAstor architecture features: 1) support multiple generations of node hardware in one grid.
- HYDRAstor architecture features: 2) non-disruptively add multiple generations of nodes to existing grid.
- HYDRAstor architecture features: 3) capacity automatically discovered WITHOUT provisioning.
- HYDRAstor architecture features: 4) existing data auto load balanced across nodes.
- HYDRAstor architecture features: 5) data resiliency level automatically maintained via Distributed Resilient Data.
- There are no virus scanning features.
- Many-to-one and many-to-many replication (at this time, there is a 16:1 fan-in ration).
- In-flight encryption.
- HYDRAstor-Netbackup OpenStorage Integration.
- Dynamic IO (free of charge)
- Optimized Copy
- Snapshot and replication are not charged extra.
Storage Nodes
- Automated aggregations of scattered fragments.
- storage nodes scale from 10TB to 20PB with all storage managed as 1 logical pool of capacity.
Accelerator Nodes
- 20 AN’s achieve 10GB/s
- 500MB/s per NEC Accelerator Node
- 36TB/Hour on a 4 rack system (20 AN / 40 SN config)
- An 11-rack HYDRAstor delivers over 25 GB per second or 90 TB per hour of throughput.
- Takes care of the chunk based De-Duped replication, based on a filesystem level.
Erasure Coding
- User determines the level of resiliency. You can enable protection to up to 6 disk failures.
- Data chunks are variable in size.
- No RAID, therefore no penalty in RAID rebuilds after failing disks.
- Chunk is broken down in fragments, this technique is called Distributed Resilient Data (DRD).
- Recovery of failed disks is always performed on the remaining storage, and is not postponed until the failed disk is replaced.
- Minimum of 9 chunks are required to reconstruct the fragments into user data. The first 9 received chunks are used, therefore not being impacted by busy SN having a high latency/delay.
Availability
- Europe / EMEA region is not yet on the roadmap.
- Just Japan and Northern US.
Pricing
- Smallest config :
- $40,000.- Starting at 4TB (listprice)
- $25,000.- per additional 4TB (max 12TB raw cap)
- Largest config :
- Minimum $120,000.-
What’s missing
- Cloud-> add REST interface to enable cloud services.
- SMB2.0 or higher would greatly enhance performance for CIFS enabled backup applications or end-users storing files on it directly.
- Virus Scanning (for customers that would like to store files on it directly)
- For long term archiving a MAID implementation would be the GREEN option.
- EMEA availability.
References
- Reference customers get support costs discount.
- Case Studies





