US007934041B2
`
`12 United States Patent
`Hoese et al.
`
`10 Patent No.:
`(45) Date of Patent:
`
`US 7 934 041 B2
`Apr. 26, 2011
`
`9
`
`9
`
`(54) STORAGE ROUTER AND METHOD FOR
`PROVIDING VIRTUAL LOCAL STORAGE
`
`(75) Inventors: Geoffrey B. Hoese, Austin, TX (US);
`Jeffry T. Russell, Cibolo, TX (U S)
`
`(52) US. Cl. ......................... .. 710/305; 710/11; 709/258
`(58) Field of Classi?cation Search ................ .. 710/1*5,
`710/8*13, 36438, 1264131, 250, 305; 709/258;
`714/42; 711/110*113
`See application ?le for complete search history.
`
`(73) Assignee: Crossroads Systems, Inc., Austin, TX
`(Us)
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(1)) by 0 days.
`
`( * ) Notice:
`
`(56)
`
`References Cited
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`Jan. 20, 2010
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`Prior Publication Data
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`’
`'
`’
`’
`'
`'
`’
`’
`'
`(51) Int CL
`G0 6 F 13/00
`G06F 3/00
`
`(200601)
`(2006.01)
`
`Black Box, SCSI Fiberoptic Extender, Single-Ended, Product Insert,
`2 pages, 1996, Jun. 18, 1905.
`d)
`(C t_
`on mue
`_
`_
`_
`_
`Prlmary Exammer * chnétopher B _Shm
`(74) Allvrney, Agem, 0r Flrm * Spnnkle IP Law Group
`(57)
`ABSTRACT
`
`.
`.
`A Storage router and Storage .network proYlde Wm?“ local
`storage on remote storage dev1ces.A plurahty of devlces are
`connected to a ?rst transport medium. In one embodiment, a
`storage router maintains a map to allocate storage space on
`the remote storage devices to devices connected to the ?rst
`transport medium by associating representations of the
`devices connected to the ?rst transport medium With repre
`sentations of storage space ontheremote storage devices.The
`storage router controls access from the devices connected to
`the ?rst transport medium to the storage space on the remote
`storage devices in accordance With the map and alloWs access
`from devices connected to the ?rst transport medium to the
`remote storage devices using native loW level block protocol.
`53 Claims, 2 Drawing Sheets
`
`6O
`
`STORAGE DEVICE
`GEZTISL
`
`R 62
`
`58
`58
`58
`\
`\
`\
`WORKSTATION WORKSTATION WORKSTATION
`A
`B
`C
`A
`1
`A
`
`56
`\
`STORAGE
`I
`ROUTER
`1
`/
`‘ FIBRE
`i
`j
`I
`52
`CHANNEL
`WORKSTATION WORKSTATION {A MANAGEMENT a,‘
`D
`E
`STATION
`/
`/
`r)
`58
`58
`76
`
`SCSI
`BUS
`
`54
`
`STORAGE DEVICE
`WORKSTATION
`A STORAGE
`WORKSTATION
`TORAGE
`B S
`WORKSTATION
`C STORAGE
`WORKSTATION
`D STORAGE
`
`66
`
`58
`
`7O
`
`72
`
`50/‘
`
`STORAGE DEVICE
`WORKSTATION
`E STORAGE
`
`74
`
`54
`
`Oracle-Huawei-NetApp Ex. 1001, pg. 1
`
`

`
`US 7,934,041 B2
`Page 2
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`Johnson, DB, et al., The Peregrine High Performance RPC System,
`Software-Practice and Experience, 23(2):201-221, Feb. 1993.
`Local-Area networks for the IBM PC by Haugdahl.
`
`Oracle-Huawei-NetApp Ex. 1001, pg. 3
`
`

`
`US 7,934,041 B2
`Page 4
`
`New serial I/Os speed storage subsystems by Bursky, Feb. 6, 1995.
`Petal: Distributed Virtual Disks, Edward K. Lee and Chandramohan
`A. Thekkath, ACM SIGPLAN Notices, vol. 31, Issue 9, Sep. 1996,
`pp. 84-92.
`Pictures of internal components of the InfoServer 150, taken from
`http :/ / bindarydinosaurs .couldMuseum/ Di gital/ info server/
`infoserver.php in Nov. 2004.
`Raidtec FibreArray and Raidtec FlexArray UltraRAID Systems,
`Windows IT PRO Article, Oct. 1997.
`SP. Joshi, “Ethernet controller chip interfaces with variety of 16-bit
`processors,” electronic Design, Hayden Publishing Co., Inc.,
`Rochelle Partk, NJ, Oct. 14, 1982. pp. 193-200.
`Simplest Migration to Fibre Channel Technology Article, Digital
`Equipment Corporation, Nov. 10, 1997, published on PR Newswire.
`Systems Architectures Using Fibre Channel, Roger Cummings,
`Twelfth IEEE Symposium on Mass Storage Systems, Copyright
`1993 IEEE. pp. 251-256.
`Of?ce Action dated Jan. 21, 2003 for US. Appl. No. 10/174,720.
`Of?ce Action dated Feb. 27, 2001 for US. Appl. No. 09/354,682.
`Of?ce Action dated Aug. 11, 2000 for US. Appl. No. 09/354,682.
`Of?ce Action dated Dec. 16, 1999 for US. Appl. No. 09/354,682.
`Of?ce Action dated Nov. 6, 2002 for US. Appl. No. 10/023,786.
`Of?ce Action dated Jan. 21, 2003 for US. Appl. No. 10/081,110.
`Of?ce Action in Ex Parte Reexamination 90/007,127, mailed Feb. 7,
`2005.
`Of?ce Action in Ex Parte Reexamination 90/007,125, mailed Feb. 7,
`2005.
`Of?ce Action in Ex Parte Reexamination 90/007,126, mailed Feb. 7,
`2005.
`Of?ce Action in Ex Parte Reexamination 90/007,124, mailed Feb. 7,
`2005.
`Of?ce Action in Ex Parte Reexamination 90/007,123, mailed Feb. 7,
`2005.
`European Of?ce Action issued Apr. 1, 2004 in Application No.
`98966104.6-2413.
`Of?ce Action dated Jan. 27, 2005 in US. Appl. No. 10/658,163.
`Digital “System Support Addendum”, SSA 40.78 .0 1 -A, AE-PNZJB
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`Digital “Software Product Description”, SSA 40.78.01, AE-PNZJB
`TE, pp. 1-3,Apr. 1,1993.
`Digital Equipment Corporation, “InfoServer 100 Installation and
`Owner’s Guide”, Order No. EK-DIS1K-IN-001, First Edition, Oct.
`1, 1990.
`Digital Equipment Corporation, “InfoServer 100 System Operation
`Guide”, Order No. EK-DIS1K-UG-001, First Edition, pp. i-Index 5,
`Oct. 1, 1990.
`Elliott, Working Draft American National Standard, Project T10/
`1562-D, Revision 5, pp. i-432, Jul. 9, 2003.
`Satran, “Standards-Track,” May 2001, iSCSI, pp. 9-87, Nov. 1,2000.
`Satran, et al. IPS Internet Draft, iSCSI, pp. 1-8, Nov. 1, 2000.
`APT Technologies, Inc., “Serial ATA: High Speed Serialized AT
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`Defendant’s First Supplemental Trial Exhibit List, Crossroads Sys
`tems, Inc., v. Chaparral Network Storage, Inc., CA. No. A-00CA
`217-SS (W.D. Tex. 2001). (CD-Rom).
`Defendant’s Third Supplemental Trial Exhibit List, Crossroads Sys
`tems, Inc. v. Pathlight Technology, Inc., CA. No. A-00CA-248-SS
`(W.D. Tex. 2001) (CD-Rom).
`Plaintiff’ s Fourth Amended Trial Exhibit List, Crossroads Systems,
`Inc. v. Chaparral Network Storage, Inc, CA. No. A-00CA-217-SS
`(W.D. Tex. 2001) (CD-Rom).
`Plaintiff’s Revised Trial Exhibit List, Crossroads Systems, Inc. v.
`Pathlight Technology, Inc., CA. No. A-00CA-248-SS (W.D. Tex.
`2001). (CD-Rom).
`Trail Transcripts, Crossroads Systems, Inc. v. Chaparral Network
`Storage, Inc., CA. No. A-00CA-217-SS (W.D. Tex. 2001) Day 1-5
`(CD-Rom).
`Trail Transcripts, Crossroads Systems, Inc. v. Pathlight Technology,
`Inc., CA. No. A-00CA-248-SS (W.D. Tex. 2001). Day 1-4 (CD
`Rom).
`Datasheet for CrossPoint 4100 Fibre Channel to SCSI Router (Dedek
`Ex 41 (ANCT 117-120)) (CD-ROM Chaparral Exhibits D012).
`
`Symbios Logic- Software Interface Speci?cation Series 3 SCSI
`RAID Controller Software Release 02.xx (Engelbrecht Ex 2 (LSI
`1421-1658)) (CD-ROM Chaparral Exhibits D013), Dec. 3, 1997.
`Press Release- Symbios Logic to Demonstrate Strong Support for
`Fibre Channel at Fall Comdex (Engelbrecht 12 (LSI 2785-86)) (CD
`ROM Chaparral Exhibits D016), Nov. 13, 1996.
`OEM Datasheet on the 3701 Controller (Engelbrecht 13 (LSI 01837
`38)) (CD-ROM Chaparral Exhibits D017), Jun. 17, 1905.
`Nondisclosure Agreement Between Adaptec and Crossroads Dated
`Oct. 17, 1996 (Quisenberry Ex 25 (CRDS 8196)) (CD-ROM Chap
`arral Exhibits D020), Oct. 17, 1996.
`Organizational Presentation on the External Storage Group (Lavan
`Ex 1 (CNS 182242-255)) (CD-ROM Chaparral Exhibits D021), Apr.
`11, 1996.
`Bridge Phase II Architecture Presentation (Lavan Ex 2 (CNS 1822 87
`295)) (CD-ROM Chaparral Exhibits D022), Apr. 12, 1996.
`Bridge. C, Bridge Between SCSI-2 and SCSI-3 FCP (Fibre Channel
`Protocol) (CD-ROM Chaparral Exhibits P214).
`Attendees/Action Items from Apr. 12, 1996 Meeting at BTC (Lavan
`Ex 3 (CNS 182241)) (CD-ROM Chaparral Exhibits D023), Apr. 12,
`1996.
`Brooklyn Hardware Engineering Requirements Documents, Revi
`sion 1.4 (Lavan Ex 4 (CNS 178188-211)) (CD-ROM Chaparral
`Exhibits D024) by Pecone, May 26, 1996.
`Brooklyn Single-Ended SCSI RAID Bridge Controller Hardware
`OEM Manual, Revision 2.1 (Lavan Ex 5 (CNS 177169-191)) (CD
`ROM Chaparral Exhibits D025), Mar. 2, 1996.
`Coronado Hardware Engineering Requirements Document, Revi
`sion 0.0 (Lavan Ex 7 (CNS 176917-932)) (CD-ROM Chaparral
`Exhibits D027) by O’Dell, Sep. 30, 1996.
`ESS/FPG Organization (Lavan Ex 8 (CNS 178639-652)) (CD-ROM
`Chaparral Exhibits D028), Dec. 6, 1996.
`Adaptec MCS ESS Presents: Intelligent External I/O Raid Control
`lers “Bridge” Strategy (Lavan Ex 9 (CNS 178606-638)). (CD-ROM
`Chaparral Exhibits D029), Feb. 6, 1996.
`AEC-7313 Fibre Channel Daughter Board (for Brooklyn) Engineer
`ing Speci?cation, Revision 1.0 (Lavan Ex 10 (CNS 176830-850))
`(CD-ROM Chaparral Exhibits D030), Feb. 27, 1997.
`Bill of Material (Lavan Ex 14 (CNS 177211-214)) (CD-ROM Chap
`arral Exhibits D034), Jul. 24, 1997.
`AEC-. 4412B, AEC-7412/B2 External RAID Controller Hardware
`0EM Manual, Revision 2.0 (Lavan Ex 15 (CNS 177082-123)) (CD
`ROM Chaparral Exhibits D035), Jun. 27, 1997.
`Coronado II, AEC-7312A Fibre Channel Daughter (for Brooklyn)
`Hardware Speci?cation, Revision 1.2 (Lavan Ex 16 (CNS 177192
`210)) (CD-ROM Chaparral Exhibits D036) by Tom Yang, Jul. 18,
`1997.
`AEC-4412B, AEC7412/ 3B External RAID Controller Hardware
`OEM Manual, Revision 3.0. (Lavan Ex 17 (CNS 177124-165)) (CD
`ROM Chaparral Exhibits D037), Aug. 25, 1997.
`Memo Dated Aug. 15, 1997 to AEC-7312A Evaluation Unit Custom
`ers re: B001 Release Notes (Lavan Ex 18 (CNS 182878-879)) (CD
`ROM Chaparral Exhibits D038), Aug. 15, 1997.
`Brooklyn Main Board (AES-0302) MES Schedule (Lavan Ex 19
`(CNS 177759-763)) (CD-ROM Chaparral Exhibits D039), Feb. 11,
`1997.
`News Release-Adaptec Adds Fibre Channel Option to its External
`RAID Controller Family (Lavan Ex 20 (CNS 182932-934)) (CD
`ROM Chaparral Exhibits D040), May 6, 1997.
`AEC-4412B/7412B User’s Guide, Rev. A (Lavan Ex 21) (CD-ROM
`Chaparral Exhibits D041), Jun. 19, 1905.
`Data Book- AIC-7895 PCI Bus Master Single Chip SCSI Host
`Adapter (Davies Ex 1 (CNS 182944-64)) (CD-ROM Chaparral
`Exhibits D046), May 21, 1996.
`Data Book- AIC-1 160 Fibre Channel Host Adapter ASIC (Davies Ex
`2 (CNS 181800-825)) (CD-ROM Chaparral Exhibits D047), Jun. 18,
`1905.
`Viking RAID Software (Davies Ex 3 (CNS 180969-181026)) (CD
`ROM Chaparral Exhibits D048), Jun. 18, 1905.
`Header File with Structure De?nitions (Davies Ex 4 (CNS 180009
`018)) (CD-ROM Chaparral Exhibits D049), Aug. 8, 1996.
`
`Oracle-Huawei-NetApp Ex. 1001, pg. 4
`
`

`
`US 7,934,041 B2
`Page 5
`
`C++ SourceCode for the SCSI Command Handler (Davies Ex 5
`(CNS 179136-168)) (CD-ROM Chaparral Exhibits D050), Aug. 8,
`1996.
`Header File Data Structure (Davies Ex 6 (CNS 179997-180008))
`(CD-ROM Chaparral Exhibits D051), Jan. 2, 1997.
`SCSI Command Handler (Davies Ex 7 (CNS 179676-719)) (CD
`ROM Chaparral Exhibits D052), Jan. 2, 1997.
`Coronado: Fibre Channel to SCSI Intelligent RAID Controller Prod
`uct Brief (KalwitZ Ex I (CNS 182804-805)) (CD-ROM Chaparral
`Exhibits D053).
`Bill of Material (KalwitZ Ex 2 (CNS 181632-633)) (CD-ROM Chap
`arral Exhibits D054), Mar. 17, 1997.
`Emails Dated Jan. 13-Mar. 31, 1997 from P. Collins to M0 re: Status
`Reports (KalwitZ Ex 3 (CNS 182501-511)) (CD-ROM Chaparral
`Exhibits D055).
`Hardware Schematics for the Fibre Channel Daughtercard Coronado
`(KalwitZ Ex 4 (CNS 181639-648)) (CD-ROM Chaparral Exhibits
`D056).
`Adaptec Schematics re AAC-340 (KalwitZ Ex 14 CNS 177215-251))
`(CD-ROM Chaparral Exhibits D057).
`Bridge Product Line Review (ManZanares Ex 3 (CNS 177307-336))
`(CD-ROM Chaparral Exhibits D058).
`AEC Bridge Series Products-Adaptec External Controller RAID
`Products Pre-Release Draft, v.6 (ManZanares Ex 4 (CNS 174632
`653)). (CD-ROM Chaparral Exhibits D059), Oct. 28, 1997.
`Hewlett-Packard Roseville Site Property Pass for Brian Smith (Dun
`ning Ex 14 (HP 489) (CD-ROM Chaparral Exhibits D078), Nov. 7,
`1996.
`Distribution Agreement Between Hewlett-Packard and Crossroads
`(Dunning Ex 15 (HP 326-33) (CD-ROM Chaparral Exhibits D079).
`HPFC-5000 Tachyon User’ s Manuel, First Edition (PTI 172419-839)
`(CD-ROM Chaparral Exhibits D084), May 1, 1996.
`X3T10 994D4(Draft) Information Technology: SCSI-3 Architec
`ture Model, Rev. 1.8 (PTI 165977) (CD-ROM Chaparral Exhibits
`D087).
`X3T10 Project 1047D: Information Technology- SCSI-3 Controller
`Commands (SCC), Rev, 6c (PTI 166400-546) (CD-ROM Chaparral
`Exhibits D088), Sep. 3, 1996.
`X3T10 995D- (Draft) SCSI-3 Primary Commands, Rev. 11
`(Wanamaker Ex 5 (PTI 166050-229)) (CD-ROM Chaparral Exhibits
`D089), Nov. 13, 1996.
`VBAR Volume Backup and Restore (CRDS 12200-202) (CD-ROM
`Chaparral Exhibits D099).
`Preliminary Product Literature for In?nity Commstor’s Fibre Chan
`nel to SCSI Protocol Bridge (Smith Ex 11; Quisenberry Ex 31 (SPLO
`428-30) (CD-ROM Chaparral Exhibits D143), Aug. 19, 1996.
`Letter dated Jul. 12, 1996 from J. Boykin to B. Smith re: Purchase
`Order for Evaluation Units from Crossroads (Smith Ex 24) CRDS
`8556-57) (CD-ROM Chaparral Exhibits D144), Jul. 12, 1996.
`CrossPoint 4100 Fibre Channel to SCSI Router Preliminary
`Datasheet (Hulsey Ex 9 (CRDS 16129-130)) (CD-ROM Chaparral
`Exhibits D145), Nov. 1, 1996.
`CrossPoint 4400 Fibre Channel to SCSI Router Preliminary
`Datasheet (Bardach Ex. 9, Quisenberry Ex 33 (CRDS 25606-607))
`(CD-ROM Chaparral Exhibits D153), Nov. 1, 1996.
`Fax Dated Jul. 22, 1996 from L. Petti to B. Smith re: Purchase Order
`from Data General for FC2S Fibre to Channel SCSI Protocol Bridge
`Model 11 (Smith Ex 25; Quisenberry Ex 23; Bardach Ex 11 (CRDS
`8552-55; 8558) (CD-ROM Chaparral Exhibits D155), Jul. 22, 1996.
`Email Dated Dec. 20, 1996 from J. Boykin to B. Smith re: Purchase
`Order for Betas in February and March (Hoese Ex 16, Quisenberry
`Ex 25; Bardach Ex 12 (CRDS 13644-650) (CD-ROM Chaparral
`Exhibits D156), Dec. 20, 1996.
`In?nity Commstor Fibre Channel Demo for Fall Comdex, 1996
`(Hoese Ex 15, Bardach Ex 13 (CRDS 27415) (CD-ROM Chaparral
`Exhibits D157).
`Fax Dated Dec. 19, 1996 from B. Bardach to T. Rarich re: Purchase
`Order Information (Bardach Ex. 14; Smith Ex 16 (CRDS 4460))
`(CD-ROM Chaparral Exhibits D158).
`Miscellaneous Documents Regarding Comdex (Quisenberry Ex 2
`(CRDS 27415-465)) (CD-ROM Chaparral Exhibits D165).
`
`CrossPoint 4100 Fibre Channel to SCSI Router Preliminary
`Datasheet (Quisenberry) Ex 3 (CRDS 4933-34) (CD-ROM Chapar
`ral Exhibits D166) (CD-ROM Chaparral Exhibits D166).
`CrossPoint 4400 Fibre to Channel to SCSI Router Preliminary
`Datasheet;
`Crossroads Company and Product Overview
`(Quisenberry Ex 4 (CRDS 25606; 16136)) (CD-ROM Chaparral
`Exhibits D167).
`Crossroads Purchase Order Log (Quisenberry Ex 9 (CRDS 14061
`062)) (CD-ROM Chaparral Exhibits D172).
`RAID Manager 5 with RDAC 5 for UNIX V.4 User’s Guide (LSI
`01854) (CD-ROM Chaparral Exhibits P062), Sep. 1, 1996.
`Letter dated May 12, 1997 from Alan G. Leal to Barbara Bardach
`enclosing the original OEM License and Purchase Agreement
`between Hewlett-Package Company and Crossroads Systems, Inc.
`(CRDS 02057) (CD-ROM Chaparral Exhibits P130).
`CR4x00 Product Speci?cation (CRDS 43929) (CD-ROM Chaparral
`Exhibits P267), Jun. 1, 1998.
`Symbios Logic-Hardware Functional Speci?cation for the
`Symbios Logic Series 3 Fibre Channel Disk Array Controller Model
`3701 (Engelbrecht Ex 3 (LSI-1659-1733) (CD-ROM Pathlight
`Exhibits D074).
`Report of the Working Group on Storage I/O for Large Scale Com
`puting; Department of Computer Science Duke University:
`CS-1996-21 (PTI 173330-347). (CD-ROM Pathlight Exhibits
`D098).
`Brian Allison’s 1999 Third Quarter Sales Plan (PDX 38 )CNS
`022120-132)) (CD-ROM Pathlight Exhibits D201), Jun. 5, 2001.
`Brooklyn SCSI-SCSI Intelligent External RAID Bridge De?nition
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`D129).
`StorageWorks HSx70 System Speci?cation by Steve Sicola dated
`Jun. 11, 1996 4:57pm, Revision 4.
`ANSI TR X3.xxx-199x, Revision 9 ofX3 -991D. Draft Proposed X3
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`1996, IBM International Technical Support Organization,
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`Hitoshi Matsushima, Shojiro Okada and Tetsuro Kudo, Feb. 3, 1995.
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`regarding related application No. 526873/2000.
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`001.
`iNFOsERVER 100 Installation and Owner’s Guide, Order No.
`EK-DIS1K-IN-001.
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`Impactdata..News Release: Impactdata’s Network Peripheral
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`agement in High-Speed Computing Environments. 2 Pages, Nov. 12,
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`
`Oracle-Huawei-NetApp Ex. 1001, pg. 5
`
`

`
`US 7,934,041 B2
`Page 6
`
`Impactdata. .News Release: Breece Hill Libraries Now Able to Attach
`Directly to High Speed Networks Peripheral Adapter from
`Impactdata. 2 Pages, Nov. 20, 1996.
`ImpactdataiDSNA Questions and Answers. 22 Pages.
`ImpactdataiNetwork Storage Solutions. 4 pages.
`Network Storage Building Blocks. 2 Pages.
`ImpactdataiNPA (Network Peripheral Interface). 4 Pages.
`Impactdata4CPI (Common Peripheral Interfae). 2 Pages.
`ImpactdataiSNC (Storage Node Controller). 2 Pages.
`ImpactdataiDSNA (Distributed Storage Node Architecture) Proto
`col. 2 Pages.
`ImpactdataiDS-50. 2 Pages.
`Impactdata4Corporate Fact Sheet. 1 Page.
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`57 pgs, Jan. 24, 1995.
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`
`Oracle-Huawei-NetApp Ex. 1001, pg. 6
`
`

`
`US. Patent
`
`Apr. 26, 2011
`
`Sheet 1 012
`
`US 7,934,041 B2
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