Demystifying DAS, SAN, NAS, NAS Gateways, Fibre Channel, and iSCSI Page 7 The simplest form of direct attached storage (DAS) is a single disk drive or single tape drive connected to a single processor Some disk systems allow the aggregate disk capacity to be “carved” into partitions (subsets) of capacity
Direct attached storage (DAS), storage area network (SAN), and network attached storage (NAS) are the three basic types of storage DAS is the basic building block in a storage system, and it can be employed directly or indirectly when used inside SAN and NAS systems NAS is the highest layer of storage and can be built on top of a SAN or DAS
May 18, 2017 · Direct Attached Storage (DAS) Booting Formerly known as DASD for Direct Attached Storage Device DAS 2 o The name "DAS" is a retronym to contrast with storage area network (SAN) and network-attached storage (NAS) Advances in technology are often responsible for the coinage of retronyms For
ME4012 SAN/DAS Array ME4024 SAN/DAS ARRAY ME4084 SAN/DAS ARRAY (12 drive) 3 5” drive slots, 2U (24 drive) 2 5” drive slots, 2U (84 drive) 2 5” drive slots,5U Optional ME4 Series expansion enclosures let you scale up to 336 drives or 4PB PowerVault ME412
SAN Server File System RAID Ethernet Switch iSCSI Application Server File System Belong to network file system DAS: Directly Attached Storage (out) Limited by server’s CPU, I/O ability When expanding storage device, the server should be powered off Data back up takes long time NAS: Network Attached Storage File level storage Ideal for
Combine Cisco Video Surveillance Media Server internal storage with DAS, SAN, and NAS to store the video in multiple locations where it can be secured and accessed most efficiently Video can be stored in loops, one-time archives, or event clips triggered by external systems Provide redundant storage and remote long-term archives
deploying iSCSI, NAS and DAS what should the network topology be? How can network topology affect Large, Medium and Small Scale network deployments? In this presentation we will discuss best practice and deployments of the network for iSCSI , NAS and DAS in the Data Center
arrays (SAN, NAS, DAS) Distributed file systems, including Hadoop and Ceph Enterprise backup and restore—D2D, virtual tape Centralized surveillance DATA SHEET Trusted Efficient Versatile Exos 7E2 The Seagate® Exos™ 7E2 enterprise hard drives with 1TB and 2TB capacities are specifically designed to address the needs of storing
SAN • Aucun diagnostic intégré évolué • Aucune façon rentable de supporter les applications milieu de gamme • Aucun transport par fournisseur unique sur les réseaux LAN/MAN/WAN, aux fins de reprise sur sinistre Îlots SAN homogènes Phase 0 : SAN isolés et SAS milieu de gamme DAS milieu de gamme milieu de SAN Ingénierie SAN SAN
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HIKVISION Storage Products
Hybrid SAN & Cluster
Enterprise Network Storage
CONTENTS
Hikvision Enterprise Network Storage History
Network Storage Solutions
Network Storage Products
Network Storage Cases
HIK Enterprise
Network
Storage History
Development History
Over the last 14 years, Hikvision storage device has been the storage leader for surveillance storage. We started to research SAN products in 2004 and now we are the worldwide largest private cluster storage provider. 2004
The Establishment
of Hikvision storage 2005
Launched 10 Gigabit
IP Network storage & FC SAN
2008
Launched hybrid
SAN products which
focus on CCTV 2010
Started to research
Cluster storage for CCTV
2013
Applied cluster
storage in surveillance2015
More than 1000+ cluster
successful cases 2016
IDC & IHS
Rank No.12018
Cluster & AI & Big data
CCTV
Storage
Leader
Rank No.1 for surveillance storageNO.1
Firstto develop Video direct stream technology
Firstto develop picture direct stream technology
Firstto release CCTV cloud storage solution
Firstto develop video+ picture direct stream technology
100 PB100 PB is applied to the large safe city
project First IHS
Hikvision Remarkable Achievement in CCTV
#1Worldwide
Market share for SAN storage used
in surveillance with 22.1%market share (in 2016) by IHS
Research
#1 the largestprivate cluster storage provider #1 the installed capacity is 5000 PBin 2016
Remarkable Achievements
Network Storage Solutions
Types of Main Stream Storage DAS/NAS/SAN
DASNAS
NFS, CIFS
Application
Server
File System
RAID
SCSIFC SwitchEthernet
Switch
Application
Server
Application
Server
RAID
File System
SAN
Application
Server
File System
RAID
Ethernet
Switch
iSCSI
Application
Server
File System
RAID
Belong to network file system
DAS: Directly Attached Storage (out)
9Limited CPU, I/O ability.
9When expanding storage device, the server
should be powered off.
9Data back up takes long time.
NAS: Network Attached Storage
9File level storage.
9Ideal for file sharing, pictures sharing, video
sharing(FTP).
9Reading speed faster than write speed.
9Data back up occupy network speed.
SAN: Storage Area Network
9IP SAN & FC SAN, FC SAN with high speed,
mainly based on iSCSI protocol.
9Data spreads in so many HDDs, applications
can visit all HDDs directly, high writing speed.
Storage Technology & Surveillance
Logical
VolumeLogical
Volume
Logical
VolumeLogical
Volume
Logical
VolumeLogical
Volume
HDD
Disk Array Controller
SAN FC/IP FC/IP
Disk Array
Peripheral
Applied for application
to access data
Shared for devices,
exclusive for data
SAN Switch
Application Software
File System Database
Logical
Volume
Logical
Volume
Logical
Volume
Application Software
File SystemDatabase
Logical
Volume
Logical
VolumeLogical
Volume
Operating System
Application Server
SAN
Operating System
Storage
IPC
StorageServer
Forwarding
Server
Disadvantages:
9Video reading and writing should be done
through platform server
9High construction cost, performance bottleneck
9The traditional file system periodically covers
data and a large number of fragments.
9Server failure can cause file system damage
and data loss.
Advantages:
9Open and standard iSCSI Protocol
9Centralized storage, easy to manage
9Easy to extend storage capability
9High data searching efficiency
IPSAN (Platform Server)Surveillance Solution
Storage Technology & Surveillance
Direct Streaming Write Technology
101010
Storage ServerIP SAN/ NAS
10110011010110101101010010101
10011010110101101010010
01011001101011010110101001010
11001101011010110101001
010101
9Longer chain, transfer data with storage sever
9Prone to failure and performance bottleneck
9The video read & write need to wait after file generation
9High cost because of extra storage server
Hybrid SAN Storage
9Shorter chain,high efficiency
9Eliminate SPF and performance bottleneck9Low cost because of no need for storage server
ISCSI/CIFS/NFS
Direct Streaming
1101110000111001010101010
1010101010110101010110101
1011101010101100101010101
1010101011010111001010110
9High-density time coordinate and precise retrieval;
9High streaming write efficiency, no file fragmentation;
9Video can be stored or read without delay;
9Storage System can overwrite data automatically;
9No performance decline for 7*24.
Video direct Streaming storage (Hybrid SAN)Generic data storage (IPSAN/NAS)
9Inefficient file retrieval;
9Inefficient file storage write with file fragmentation issues;
9File storage requires a fixed-format file generation to read;
9VMS is required to realize deletion of data periodically;
9long-term performance tend to decrease.
Faster Data Retrieval With Hikvision Video Direct Streaming
Timer 01
7*24h
Timer NPositioning
retrieval in seconds Gop
Video data
Time coordinate
Jan.10th, 2019
_01.MP4
Jan.1st, 2019
_01.mp4
File storage
January
1st.10th.
Jan.1st, 2019
_02.mp4
Jan.10th, 2019
_02.MP4
Hikvision Video Direct Streaming Storage Solution
Hikvision Video Direct StreamingStorage
Management
Server
IPC
Forwarding
Server
Features:
9Video stream writes directly into storage
device, eliminating storage server costs, avoiding single point of failure and server performance bottlenecks;
9Standard ONVIF and RTSP support for 3rd
Camera access;
9SDK available for 3rd VMS integration
ANR
HybridSANsupportANRfunction,the
videowouldstorageinNVR/IPC(Edgequotesdbs_dbs44.pdfusesText_44
Demystifying Storage Networking DAS, SAN, NAS, NAS Gateways