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` CROSSROADS EXHIBIT 2300
`Oracle Corp., et al v. Crossroads Systems, Inc.
` IPR2014-01207 and IPR2014-1209
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`Network storage device with routing and security controls
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`Abstr.act
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`High speed serial interconnects provide the capability to attach a large number of high speed
`devices to a common storage tr.wsport medium over large distances. Existing storage tr.msport mediums
`provide for a n:latively small nlDD~ of devices to be attached ova rdativdy short di.stuces. A stongc
`router serves to interconnect these mediums, providing devices on either medium global, transparent access
`to devices on the other medium, routing requests from specific devi~ on one medium to specific devic~
`on the other medium.
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`Existing computer worbmtions access storage either locally or through network interconnects.
`Local stonge typically consists of a disk drive contained within, or locally coll.Dected lo, the wod:sotion.
`Access to local storage is though low level. block protocols mapping directly to the mec:h.anism.s used by tbc
`storage device, and consist of data n:quests with no specific stru.c:turc. Security controls a.re not provided.
`Network interconnects provide access for a luge number of worbtiitiocs to storage on :a. rt:mote server,
`which provides file system struc:turc, access control, and other miscella.oeous capabilities. Aeccs.s to the
`data on tbc server is through protocols th.at map to tbe file system coostru~ implemented by the server.
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`The invention provides for a large number of computer work:sbtions to be interconnected on :a.
`common storage transport, acc:cssing a common data ston: tbn>ugh low levc~ block protocois. Access
`controls and routing are implemented such th.at each workstation has access to a specific subset of the data
`store, which bas the appearance and characteristics oflocal storage. Methods are provided that allow for
`configuration a.cd modification of the storage allocated lo each workstation attached.
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`Drn-ing 1. Typical Network. Access to dati storage is through s.c:rvcr, which implements file
`system on disk and transfers data to wodc.statiocs via high level file system protocols.
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`CROS ~11
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`Crossroads SystctllS Inc.
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`Coo.fidcntial Inf ormatio.o
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`2 of 3
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`CRDS-T 00335
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`41
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`g
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`IC: cR i
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`Disk
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`c IE OR fl
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`Wori<.stalion
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`WOtXstadon
`W0!1<.Statlon
`Drawing 2. Storage Networi:: with global access and routing, Any wodcst2tion can access any storage
`device through low level block protocols.
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`Worl..sulion t
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`D D
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`W~4 Wortcstdon5
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`Woct..sta!ion 1
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`Drawing 3. Networi:: storage device with routing and security CODttols.. Worlcstations access storage through
`low·level protocols, with the appearance and methods oflocal &10rage aca:ss. Access control is co::nbi.ned
`with routi.og in the storage router, such that each workstation has controlled access only to specified storage
`devices or sectioc thc:~of.
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`Concept by Geoffrey Hoese, Marcll 22., 1997. F~ draft May 15, 1997.
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`CRDS -40~12
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`Crossroad.> Systems Inc.
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`Confidential Information
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`3 of 3
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`CRDS-T 00336
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