1. Jisc Tiered Storage Overview
Tiered Storage Requirements
19/07/2018
Jisc Tiered Storage Overview

2. Tiered Storage Requirements
Status
19/07/2018
Initial interest for storage expressed by SDC-North tenants
Concept explored with SDC-North tenants – workshop April
Leeds forecast they will require 46 Petabytes of data storage within 10 years - with an assumption that storage will 'move to the right'
Manchester will require 8Petabytes within the next 3-5 years (600 TB last year)
Informal discussions with NEI PDG, RDM, etc.
Informal vendor discussions
Formed Jisc POG (Project Oversite Group)
Draft Jisc Business Case
Requirements Workshop – November 2016
Working Group – Feb 2017

3. Tiered Storage Proposal
Customer Infrastructure
(e.g. VMWare Vsphere)
Applications
Customer Applications
RDM Share Services
iSCSI
SMB
CIF
NFS S3
https
Swift
ceph …
Jisc Tiered Storage Service
HSM Appliance
HSM Data Policy
Pool Prioritisation
Replication
Snapshots
SLAs (e.g. retention, availability, security)
Distributed Storage Pool
Cloud Storage Pool
Archival Storage Pool
Amazon Glacier
Arkivum
AWS
Google
Cloud9

4. Tiered Storage - Proposal
Pool
Overview
Class
Copies
Recovery Time Objective
Recovery Point Objective
Distributed Storage Pool
Data stored near sites (based on SDC1, SDC2 and other locations e.g. national research e-infrastructure centres, other NRENs) to give onsite\nearsite recovery times
Use of erasure-encoding to give equivalence of 2 copies with ~1.6 times storage capacity
Reference model or “boxed solution” for campuses
Lever Janet backbone to deliver Onsite equivalence
Equivalent to 2 Copies including offsite
Onsite\near site equivalent
<1 Hour
Cloud Storage Pool
Managing data copies across multiple cloud providers
Archive
< 1 Hour
1-24 Hour
Archival Storage Pool
Managing data copies across multiple cloud “vault” providers (i.e. 99% or 100% guaranteed data recovery)
Vault
Guaranteed recovery
N/A

5. Matthew Dovey
Jisc Technologies