CD- -ROM Networking ROM Networking CD Somchai Prasitjutrakul - PowerPoint PPT Presentation

CD- -ROM Networking ROM Networking CD Somchai Prasitjutrakul Somchai Prasitjutrakul Dept. . of Computer Engineering of Computer Engineering Dept Chulalongkorn Univ. . Chulalongkorn Univ

CD- -ROM Networking ROM Networking : : Outline Outline CD Introduction v Introduction v Components v Components v Architectures v Architectures v Demo. . v Demo v Q & A v Q & A v

CD- -ROM Networking ROM Networking CD Offer CD- -ROM drives as an additional ROM drives as an additional v Offer CD v network resource network resource Afford multiple network users access to v Afford multiple network users access to v the same disc simultaneously the same disc simultaneously Let individuals conveniently select and v Let individuals conveniently select and v read the particular disc they want read the particular disc they want

CD- -ROM Network ROM Network : : Strengths Strengths CD Higher user productivity v Higher user productivity v Higher performance v Higher performance v Easier management v Easier management v Better security v Better security v Lower cost v Lower cost v

CD- -ROM Networking ROM Networking: :Limitations Limitations CD Performance v Performance v Compatibility v Compatibility v Capacity v Capacity v Complexity v Complexity v

CD- -ROM Network ROM Network: : Components Components CD CD- -ROM discs ROM discs v CD v Retrieval software v Retrieval software v Computer workstations v Computer workstations v CD- -ROM drive ROM drive( (s s) ) v CD v Network : : H H/ /W W + + S S/ /W W v Network v

CD- -ROM Reader ROM Reader CD CD- -ROM drives ROM drives v CD v CD- -ROM minichanger ROM minichanger v CD v CD- -ROM tower ROM tower v CD v CD- -ROM jukebox ROM jukebox v CD v – DRM DRM- -5004X 5004X : : 4 drives, 500 discs 4 drives, 500 discs – – Discs are not used very often Discs are not used very often – – Small number of simultaneous users Small number of simultaneous users – – Index is located on the hard disk Index is located on the hard disk –

CD- -ROM Network ROM Network: : Architectures Architectures CD Peer- -to to- -peer access peer access v Peer v Fileserver extensions v Fileserver extensions v Plug’ ’n Play CD n Play CD- -ROM mini servers ROM mini servers v Plug v Dedicated CD- -ROM servers ROM servers v Dedicated CD v

Peer- -to to- -Peer Access Peer Access Peer Share locally attached CD-ROMs

Peer- -to to- -Peer Access Peer Access Peer Advantages v Advantages v – Each user has control over their CD Each user has control over their CD- -ROM ROM – – Low cost and ease of installation Low cost and ease of installation – Disadvantages v Disadvantages v – Host Host’ ’s CD s CD- -ROM use is limited ROM use is limited – – Lack of standard management and control Lack of standard management and control – – May experience long delays May experience long delays –

Peer- -to to- -Peer Access Peer Access : : NOS NOS Peer Microsoft WFW, Windows 95, v Microsoft WFW, Windows 95, v NT Workstation NT Workstation IBM OS/ /2 Warp 2 Warp v IBM OS v Macintosh OS v Macintosh OS v LANtastic v LANtastic v POWERLan v POWERLan v

Fileserver Extensions Fileserver Extensions Fileserver CD-ROM Tower, Minichanger

Fileserver Extensions Fileserver Extensions Attached CD- -ROM drives are viewed ROM drives are viewed v Attached CD v as if they were hard disk drives as if they were hard disk drives View the attached CD- -ROM drives as ROM drives as v View the attached CD v one big volume one big volume Performance file and directory caching v Performance file and directory caching v Novell Netware Windows NT server

Fileserver Extension Fileserver Extension Advantages v Advantages v – Leverages existing fileserver H Leverages existing fileserver H/ /W & S W & S/ /W W – – Offers high performance CD Offers high performance CD- -ROM access ROM access – – Provide common, centralized management Provide common, centralized management – – Maximum physical security Maximum physical security – Disadvantages v Disadvantages v – Burdens the fileserver Burdens the fileserver – – Limits access for user to change discs Limits access for user to change discs –

Fileserver Extensions : : Software Software Fileserver Extensions Meridian Data’ ’s CD Net s CD Net v Meridian Data v Micro Design’ ’s SCSI Express s SCSI Express v Micro Design v Microtest’ ’s CD s CD- -NOW NOW! ! v Microtest v Smart Storage’ ’s Smart CD s Smart CD v Smart Storage v etc. . v etc v

CD- -ROM Mini Servers ROM Mini Servers CD Mini server CD-ROM Tower, Fileserver Minichanger

CD- -ROM Mini Servers ROM Mini Servers CD Advantages v Advantages v – Easiest to install and access Easiest to install and access – – Can be placed anywhere, allow Can be placed anywhere, allow – workgroups to admin. . their own needs their own needs workgroups to admin – Highly scalable and expandable Highly scalable and expandable – – Offers mid Offers mid- -range CD range CD- -ROM performance ROM performance – Disadvantages v Disadvantages v – Need additional fileserver Need additional fileserver’ ’s resources s resources – – Less secure, if allow physical access Less secure, if allow physical access –

CD- -ROM Mini Servers ROM Mini Servers CD Microtest’ ’s DiscPort s DiscPort v Microtest v Meridian’ ’s CD Net Link s CD Net Link v Meridian v Micro Design’ ’s CD s CD- -Express Connect Express Connect v Micro Design v Axis StorPoint v Axis StorPoint v etc. . v etc v

Dedicated CD- -ROM Servers ROM Servers Dedicated CD CD-ROM server CD-ROM Tower, Fileserver Minichanger, Jukebox

Dedicated CD- -ROM Servers ROM Servers Dedicated CD DOS- -based optical server based optical server / / redirector redirector v DOS v Netware NLM / / redirector redirector v Netware NLM v Netware volume emulation v Netware volume emulation v Windows NT services v Windows NT services v

Dedicated CD- -ROM Servers ROM Servers Dedicated CD Advantages v Advantages v – Provides highest performance Provides highest performance – – Allows a large number of CD Allows a large number of CD- -ROM drives ROM drives – – Supports higher capacity CD Supports higher capacity CD- -ROM jukeboxes ROM jukeboxes – – Does not burden existing production servers Does not burden existing production servers – – Offers common, centralized management Offers common, centralized management – Disadvantages v Disadvantages v – Generally more expensive Generally more expensive –

Wider Access Wider Access Remote access via modem v Remote access via modem v – pcANYWHERE pcANYWHERE – – Stac Stac’ ’s ReachOut s ReachOut – – NT NT’ ’s RAS, Novell s RAS, Novell’ ’s NAS, Terminal s NAS, Terminal – server,... ... server, Internet access v Internet access v – Supro Supro’ ’s Everywhere Access for DOS, OS s Everywhere Access for DOS, OS/ /2 2 – – NT NT’ ’s Telnetd s Telnetd – – NetBIOS over TCP NetBIOS over TCP/ /IP IP – – Web Web + + CD CD- -ROM server ROM server –

Faster Access Faster Access Caching CD- -ROM images to hard disk ROM images to hard disk v Caching CD v – Logiccraft Logiccraft’ ’s FastCD s FastCD – – Stac Stac’ ’s CD s CD- -Quickshare Quickshare – – NT NT’ ’s compressed NTFS s compressed NTFS – High use discs in a Tower v High use discs in a Tower v Low use discs in a Jukebox v Low use discs in a Jukebox v

MSCDEX MSCDEX CD-ROM Retrieval S/W int 21h DOS int 2Fh MSCDEX Device Driver CD-ROM Hardware Some CD-ROM applications may not run off of the server

Client- -Server Architectures Server Architectures Client Map CD- -ROM drives as shared ROM drives as shared v Map CD v network disk drives network disk drives – Your network cable acts like a data bus Your network cable acts like a data bus – Retrieval Interface + Search Engine

Client- -Server Architectures Server Architectures Client Putting the search engine in your server v Putting the search engine in your server v lessens the network traffic lessens the network traffic Retrieval Interface Search Engine • SilverPlatter’s ERL • Telnet session

Demonstrations Demonstrations

Questions & Answers Questions & Answers ???