1 making removable raid disk media a reality changing the world of storage rxt applications from smb...
TRANSCRIPT
1
Making Removable RAID Making Removable RAID Disk Media A RealityDisk Media A RealityMaking Removable RAID Making Removable RAID Disk Media A RealityDisk Media A Reality
Changing the World of Storage Changing the World of Storage
RXT
Applications from SMB to the
Enterprise
Spectra Logic Corp. – Boulder , CO
2
HDDs as Removable Media HDDs as Removable Media
HDDs have many inherent advantages: • Performance (random access vs. sequential)• Size• Capacity Trends• Cost Trends• Interface Trends
However, new HDD applications have been limited by:• Fixed Configurations (static arrays) as secondary use• Differentiation between Enterprise and other applications• Perceived “robustness” for removable use• Lack of appropriate architecture/standard for portable use
3
What has Changed to Make Removable Disk Feasible Now?What has Changed to Make Removable Disk Feasible Now?
Availability of Highly Reliable, High-Performance SATA Drives, particularly 2.5” FF for Mobile Use• 900G Shock Protection (non-operating)• 1,000K Hour MTBF• 80GB per Spindle and moving to 100+ GB soon• 80MB/sec Data Transfer Rate• Simplified Serial Interface (SATA) with low Connection Count
Rugged, Innovative Packaging & Controller Architecture• Unique, shock-protected packaging for HDDs as removable media• Unique Docking Station/Controller provides power, I/O & Data
Formatting Embedded RAID Controller for high data integrity
4
Removable HDD Architecture – Putting the Pieces TogetherRemovable HDD Architecture – Putting the Pieces Together
Shock Mount Off-the-Shelf SATA HDDs in a Portable Enclosure “TeraPack” Module
Controller to Accept TeraPack Modules & Provide RAID Data Protection “Docking Station”
“RXT” Architecture
6
What is the Application Opportunity? High-performance, high capacity, removable media
for data protection, archiving and interchange.
What are the Design Objectives for Portability?
Provide best reliability and data integrity Provide a scalable architecture base Integrate both disk and tape seamlessly Provide multiple capacities and application
configurations
RXT ImplementationRXT Implementation
7
RXT Removable Disk Module (TeraPack)RXT Removable Disk Module (TeraPack)
Contains Up to 12 SATA HDDs shock mounted in a “TeraPack” enclosure
“Connector Array” provides interface for each HDD to the Docking Station• No Power or Electronics contained in the
TeraPack – Just HDDs
Bar Coded for Data Set Management (manual or automated)
Can be transported manually or through an automated library robotics environment
8
RXT Docking StationRXT Docking Station
RXT Docking Station/Control Unit – enclosure with opening to accept RXT TeraPack media, providing power, control and RAID functions• Provides Ultra-SCSI 320 I/F to host system• Contains processor running own OS to
manage all functions, including RAID• Contains “pogo-pin” array to connect to
RXT media pack (provides power, I/O, etc. to each drive in TeraPack)
• 5.25” Internal or External packaging.
RXT from Spectra LogicRXT from Spectra Logic
RXT Internal Docking/Control Unit
with RXT Media Loaded
RXT External Docking/Control Unit
with RXT Media Loaded
9
RXT Is True Removable RAIDRXT Is True Removable RAID
Unlike a traditional HDD RAID configuration, RXT is a fully enclosed array of HDDs that can be removed as a RAID unit for:
• Offsite storage• High speed data exchange• “Near-Line” storage in
library automationIn a Traditional RAID Array,individual component disks are removable, but the array (and the data) is “fixed”
10
800GB RXT Media
RAID Levels0 and 1
(2) 3.5” 400GB
SATA Disk Drives
Lower Cost Targeted at Mid-Range applications
960GB RXT Media
RAID Levels0, 1, and 5
(12) 2.5’”80GB
SATA Disk Drives
High Performance Best Shock Protection Targeted at Enterprise applications
RXT RAID Media Choices
The RXT RAID TeraPackThe RXT RAID TeraPack
11
RXT Media EvolutionRXT Media Evolution
Current RXT Media options
Configuration (2) 3 ½” SATA drives
(12) 2 ½” SATA drives
Capacity
RAID Level
800 GB per TeraPack case0, 1
960 GB per TeraPack case0, 1, 5
As SATA drives grow in capacity, cost effectiveness and performance, so will RXT media.
• 3 ½” media — greatest $/Terabyte value.
• 2 ½” media — highest throughput, capacity, data integrity and reliability
12
Comparison Chart - Removable MediaComparison Chart - Removable Media
Spectra Logic RXT80GB & 400GB
SATA HDDRAID 0, 1, 5 800GB - 960GB Ulta-SCSI 320
IOMega REV Modified HDD ECC 36GB SCSI, USB
IO Data iVDRExtended SATA
HDD? 20GB USB
Optical PDD, UDO Re-writable Optical ECC 23 - 30 GBSCSI, USB,
ATA
System Interface
Media Capacity (Native)
Company Model Disk Type Data Integrity
13
Traditional Data Protection and Archiving• Fast, reliable back-up and restore
Move off-line data, on-line rapidly Move off-site data to DR site for faster recovery
• Short-Term On-Line Archiving• Complement Tape in automation applications
Vertical Markets • Defense/Security – Rugged, portable media for transport & high-
speed access• Video Broadcast – High capacity, performance access of large
data sets• Oil & Gas - Rugged, portable media for transport and interchange• Service Providers – Portable media for archive, fast restore
RXT Target MarketsRXT Target Markets
14
The RXT Configurations & ApplicationsThe RXT Configurations & Applications RXT Standalone
• SMB Backups - environments too small for automation
• Disaster Recovery “Hot” Sites• Media can be rotated exactly
as tape• High-performance removable
storage for Vertical market applications
• Provides media interchange with automation applications
RXT Standalone Docking Station & Media
15
RXT Configurations & ApplicationsRXT Configurations & Applications
RXT with Server• Backup individual servers
directly to removable RAID• More reliable than tape
auto-loaders.• High-performance
removable storage for Vertical market applications
Server, RXT Docking Stations, & Media
16
RXT Configuration & ApplicationsRXT Configuration & Applications
RXT Rackmount• 2U (3.5”) Rack-mountable
unit• 3 Devices, either RXT or
Tape Drives• Can be used independently,
or in conjunction with the T120 tape library
• Simple device copy for D2D2T backups
RXT Rackmount Docking Station & Media
(Shown With Spectra T120 Library)
17
Tape/Disk Library Automation
• RXT Docking Stations and RXT Media are installed into existing drive bays and media storage chambers
• RXT Utilizes Existing Robotics, Interfaces, and Power
• Tape/Removable Disk can Co-exist in same library
Removable HDD capacity scales from 960 GB to 90TB/Cabinet
• Transparent to backup application
Storage Chambers
Drive Bays
RXT in the EnterpriseRXT in the Enterprise
T950
18
E/E Port
Tape TeraPack
RXT DockingStation
TeraPack Media Chambers
Tape and RXT Drive Bays
RXT DiskTeraPack
LTO2 Drive
RXT in the Enterprise – T950 AutomationRXT in the Enterprise – T950 Automation
19
SDPROLIANT 1850R
SDPROLIANT 1850R
SD
SD
ESC
DLT
PROLIANT 8000
Servers
BackupTo Disk
T950 With RXT and Tape
3. Copy RXT To Tape (Vaulting)
2. Export RXT For Off-site Storage
1. Leave Data On RXT For Fast Retrieval
Once The Backup Is complete:
OR
OR
Backup Operation in a T950Backup Operation in a T950
RXT in the Enterprise – Multiple ChoicesRXT in the Enterprise – Multiple Choices
(Virtual Tape)
20
Spectra T950 Supplier A Supplier B
Performance 34.6TB/Hr 1.4TB/Hr 1.2TB/Hr
Portable Media Yes No No
Configuration Integrated in Library External to Library External to Library
Capacity 95TB/Frame 150TBs/2 Frames 40TB/Frame
Scalability 600 TBs 6 to 160 TBs 10 to 40TBs
RXT/T950 - Enterprise ComparisonScaling Capacity and Performance
RXT/T950 - Enterprise ComparisonScaling Capacity and Performance
21
RXT – A New Approach to HDD ApplicationsRXT – A New Approach to HDD Applications Portability
• True removable RAID media• Shock and RAID protected
Flexibility• Wide range of configurations• Scales to range of capacity and
performance points• Co-exist with Tape
Range of Storage Application Environments• Desk-top, Server-ready & Rack-mount for
standalone applications• Automation support for Enterprise
applications
Combines the Performance & Reliability of Disk with the Portability of Tape !