Adaptec GDTSETUP Manual de usuario Pagina 1

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100is controlled by another SCSI channel, independent Logical Drive accesses become possi-ble, resulting in a high degree of overlapping. After having

101Since we want to create a new Array Drive press <ENTER>.Note: The first entry in this list has no relevance for our example.Move the selectio

102When the last Logical Drive is selected, confirm with <ENTER>. GDTSETUP now displays alist of possible RAID levels available with the number

103GDTSETUP asks for the Stripe Size. This is the size of the stripes into which the data is di-vided. The default is 32KB which we leave for this exa

104It's done !We succeeded in setting up a RAID 5 disk array. The screen shows that the disk array is cur-rently in an idle state. Later in this

105At position 1 we find our previously configured RAID-5 disk array. It was automaticallytransformed into a Host Drive, thus for this example we have

106By the way, if you have loaded GDTSETUP from the Flash-RAM (<CTRL><G>) the PartitionDrive option will be missing in this menu. The reas

107Press <ENTER> and move the selection bar to the Build/Rebuild Progress menu. Press<ENTER> .From the progress information slider, we can

108Now press <ENTER> and move the selection bar to the Parity Verify menu. Press <ENTER>.RAIDYNE now checks the correctness of the redunda

109fully operational (e.g., in a NetWare file server). Further information on GDTMON is given ina separate chapter of this manual.6WHS6LPXODWLQJ

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110After selecting the failed Logical Drive, press again <F2> to obtain detailed information onthe physical drive which has actually failed.Impo

111Press <ENTER> . GDTSETUP recognises the previously failed drive again (it was not reallydefective) and asks if it should be integrated into t

112aware of the fact that this disk array does not have any redundancy until the defective harddisk has been substituted. This means that if another h

113Press <ENTER>. (Note: the Host Drive boot_me is not relevant for our example). Select oneby one the Logical Drives 1, 2, 4 and 5. Omit Logica

114In our case we take RAID-5 and press <ENTER>.GDTSETUP asks for the Stripe Size. This is the size of the stripes into which the data is di-vi

115GDTSETUP allows you to limit the capacity of the disk array. This may be of interest if yourinstallation requires an exact size for a disk array. N

116Press <ENTER>. GDTSETUP now displays a new dialog-box containing all the LogicalDrives apt to serve as a Hot Fix drive (one criterion for thi

117GDTSETUP offers two different Hot Fix types: A private Hot Fix drive is only available for onespecific disk array. A Hot Fix drive in a Hot Fix Poo

118After pressing <F2> we get detailed information on the structure of the disk array. The lastentry refers to the Priv. Hot Fix drive.We have a

1192. RAIDYNE activates the so-called fail operation mode. In this mode, the disk array re-mains fully operational. The data of the failed drive is r

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120In the next step we setup a new Logical Drive:DISK_B3 is our new Logical Drive, which we want to use as a new Hot Fix drive.Change to the Configure

121Select Add Hot Fix Drive and thereafter DISK_B3.Select Private Hot Fix and press <ENTER> .Press <F2> to get the configuration informati

122DISK_C2 is still invalid (this was our former Hot Fix drive), since the rebuild process is notyet completed.&7U\LQJWR$QVZHU7KH,QLWLDO

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124In order to assist the following considerations, we define the term time without redundancy,TWR. Set apart the time needed to set up the disk array

125&([SDQG6WDWHIf the capacity or RAID level of an existing disk array is changed, the disk array changes itsstate into expand. As soon

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128'8VLQJ0LFURVRIW06'26After having explained the installation of the ICP Controller and the host-drives in chaptersB and C, we now ex

129(C) Now, in the program GDTSETUP, select the menu Configure Host Drives.Pressing <ENTER> leads you to the following sub-menu. In our example,

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130We now select Partition Drive and then View Partitions. The following screen appears. In ourexample, there is no entry yet.Press <ESC>, selec

131In the upcoming window, select Primary Partition and confirm with <ENTER>.Now you can determine the size of the primary partition. In our exa

132(E) Now use the MS-DOS program FORMAT to transfer MS-DOS to the primary partitionyou have just created.To do so, enterA:\> FORMAT C: /S <ENTE

133'([SDQGHG0HPRU\0DQDJHUVWhen using Expanded Memory Managers, a certain address area has to be excluded frombeing controlled by these prog

134(B) After the installation is completed, the Setup program will ask you if you want to resetthe system. This reset must be performed.(C) If you cha

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136information for MSCDEX. As mentioned before, it is our objective to be able to access theCD-ROM drive with a drive name (i.e. E). Naturally, this d

137'7KH*'7$63,0DQDJHU*'7$63,(;(The GDT ASPI Manager GDTASPI.EXE allows you not only to run Not Direct Access Devices(e.g., CD-

138shell=\COMMAND.COM /E:512 /Pdevice=\gdt\gdtxdos.exedevice=\gdt\gdtaspi.exe /R:H1I4device=aspidisk.sysNote: Drives run with ASPIDISK.SYS are not com

139',QVWDOOLQJ:LQGRZVThis guide will take you through the process to install the files necessary to allow the con-troller to operate unde

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140Upon completion of the Windows 95 installation you will need to load the GDTMONprogram to Windows 95. The following steps will take you through thi

141'8SGDWHWKH,&3:LQGRZV'ULYHU1. Download the WIN95.EXE file from the ICP web site (http://www.icp-vortex.com). Thisself-ex

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144(8VLQJ1RYHOO1HW:DUHAfter having explained in chapters B and C the installation of the ICP Controller as well asthat of the host-drives, we wou

145GDTRP400.DSK for NetWare 4.xASPITRAN.DSK ASPI managerCTRLTRAN.DSK Module for GDTMON(Note: More information about the GDTMON diagnosis tool may be f

146(FDFKHPHPRU\DOORFDWRURXWRIDYDLODEOHPHPRU\LQ3&,,6$6\ VWHPVPCI-Systems which are not equipped with an EISA-Bus behave in the s

147This parameter sets the time whereafter 'dirty buffers' are written (flushed) from the cacheof NetWare to the hard disk. The minimum valu

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15$.H\)HDWXUHVRIWKH,&3&RQWUROOHUVRIWKH*'75'6HULHV Hardware RAID Controllers with RAID 0, RAID 1, RAID 4, RAID 5 an

150)8VLQJ0LFURVRIW:LQGRZV17After having explained the installation of the ICP Controller and the host drives in chaptersB and C, we now explain

1516WHS The size of a Windows NT boot partition is limited to a maximum capacity of 2GB(this is a Windows NT restriction).6WHS In some cases Win

1526WHS When connecting the various SCSI devices to the SCSI channel of the ICP Control-ler, please ensure that the SCSI-ID of all Not-Direct-Acce

15310.Afterwards, the installation program scans the system for existing hard disks (which areidentical to the Host Drives of the GDT). Choose the dr

154g) Click on 2..Windows NT informs you that this driver is already on the system and asks if youwant to use the currently installed driver or a ne

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156If the function key F6 was not pressed at the correct point, the procedure can be easily re-peated by rebooting the computer (hard reset).Otherwise

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158*7KH'LDJQRVLV3URJUDP*'7021GDTMON (GDT monitor) is a helpful and flexible diagnosis tool for the monitoring, main-tenance and tuning

159*/RDGLQJ*'7021As mentioned before, the GDTMON program is available for various operating systems.It can be used either locally or remotel

16$&RS\ULJKWV3DWHQWVParts of the ICP GDT RD Series controllers are protected under international copyright lawsand agreements. No part of th

160*/RDGLQJWKH*'70213URJUDP8QGHU1HW:DUHThe GDTMON program for NetWare is part of the GDT Novell NetWare disk.GDTMON can be used either

161*/RDGLQJJGWPRQXQGHU6&281,;In order to be able to use the gdtmon program under SCO UNIX (2.x, 4.x and 5.x), it be-comes necessary to s

162(MS-DOS) in the Select Protocol menu indicates that the GDTMON program was loaded ona MS-DOS computer. I.e.: If GDTMON had been loaded under Windo

163*+RVW'ULYHVThis menu option leads to the list of available Host Drives (level 4). We would like to recallthat the operating system (e.g

164(Note: All Host Drives on the screen shown above are idle.)*/RJLFDO'ULYHVThis menu option yields a list of available Logical Drives (le

165The figures under Total represent the total performance of all Logical Drives. With the mand o keys you may change the scale of the graphical KB/s

166*3K\VLFDO'ULYHVIn addition to the performance report on the hard disks, you are given additional informa-tion on each device: the GDT

167The Retries/Reassigns counters have a particular meaning:(1) The Retries counter is incremented by one unit whenever the ICP Controller retries toa

168*6DPSOLQJ5DWHBy setting the sampling rate, you can choose the interval at which the ICP Controller deliv-ers new measurements. According to

169*7KH0HQX9LHZ&KDQJH6HWWLQJVThis menu includes a set of very powerful options and functions for the online maintenanceand diagnosis of R

17$6RIWZDUH/LFHQVH$JUHHPHQWPlease read this Software License Agreement before opening the CD/disk packaging andbefore starting to use the progra

170&DFKH6HWWLQJV- View/Change the GDT cache parameters3K\VLFDO'ULYHV- View/Change the SCSI parameters/RJLFDO'ULYHV- Display the struc

171&: controller number[: channel\: ID]: Logical Drive numberW:  = terminated,  = not terminated (with SCSI hard disks)Example:6&

172*&DFKH6HWWLQJVThis submenu displays the current GDT cache settings which can be changed here. Thevarious settings are:&DFKH21the GD

173*3K\VLFDO'ULYHVThis option gives a list of all hard disks connected to the ICP Controller. Besides informa-tion on the GDT I/O channel,

174If you select the SEP of a SAF-TE subsystem, GDTMON displays a list of the installed andconfigured slots in the subsystem

175Press <F2> to get the status of the SAF-TE enclosure.*/RJLFDO'ULYHVThis command yields a list of the existing Logical Drives. In

176Press <ENTER> to select a Logical Drive. The following options become available:*6HW/RJLFDO'ULYH1DPHChange the name of the Lo

177*+RW3OXJ5HSODFH0LUURU'ULYHIf a RAID 1 or RAID 10 Host Drive has already been set up, a defective drive can be replaced(Hot Plug)

178([DPSOH6HVVLRQIRU$SSOLFDWLRQWe assume that there is a RAID 1 Array Drive which is fault tolerant. Its state is vv, bothLogical Drives are vali

179The Hot Plug function now displays a list of the positions available for the new drive. Eachposition is univocally determined by its coordinates (I

18$*HQHUDO,QIRUPDWLRQThe ICP Controller should be installed by an authorized ICP vortex distributor. Preconditionfor the safe installation is an

180For this example, we select the first position and receive the following message:The Hot Plug function now informs us that all devices on the I/O c

181Now we have entered the actual Hot Plug procedure. Disconnect the drive to be exchangedby plugging it off from the I/O channel first, and then, fro

182GDTMON recognizes that the new hard disk was already initialized before.Confirmation of this message destroys all data on the selected drive.After

183([DPSOH6HVVLRQIRU$SSOLFDWLRQWe assume that there is a RAID 1 Array Drive which is no longer fault tolerant. Its state is-1/v, one drive has fa

184After confirming here with "Yes", you can follow the next paragraph "G.3.5.3 Hot Plug: AddMirror Drive", to add a new mirror d

185assigned to a Logical Drive or Host Drive, it will be displayed in the list of Disk Drive Posi-tions.There are two cases which make this function v

186After selecting the new hard disk, the following message appears:The following message indicates that channel B was stopped for the time of the act

187Now, the new hard disk is added as a mirror to the selected Logical Drive. The updated listof available Logical Drives shows the change. The Logica

188The entry "invalid" for the second drive means that the data have not yet been (completely)copied from the first drive. After the complet

189*+RW3OXJ$GG3RRO+RW)L['ULYHA Pool Hot Fix Drive is a spare drive within the so-called Hot Fix Pool. A drive in a Hot FixPool is

19$3URGXFW'HVFULSWLRQ$,QWHOL5',23URFHVVRUThe i960RD I/O processor is a member of a new RISC CPU generation which was speci

190After the completion of this function, the Pool of Hot Fix drives contains a new drive (in ourexample here, it is the only drive.To allow a RAID 1

191*3RRO+RW)L[$FFHVVThis function enables or disables the access of a certain RAID 1 or RAID 10 Array Drive tothe Hot Fix Pool.If the acces

192(error, idle, build, ready, fail, expand, rebuild) and the net capacity are displayed. Press<F2> to obtain further information on a selected

193*3DULW\5HFDOFXODWHIf the parity verify option reports a parity problem, it is advisable to recalculate the parity ofthe selected Array Dri

194*([SDQG$UUD\'ULYHThere are two fundamental functions which are available within this option: Migrate the RAID level of the selecte

195After confirming this request, the I/O channels are scanned for free positions and alreadyexisting available (i.e., not yet assigned to a Logical D

196For this demo, we select the hard disk on channel A and ID 0.

197The new drive is built into the Array Drive. According to the Expansion Progress Informa-tion this takes approximately 18 minutes. During the expan

198*3RRO+RW)L[$FFHVVThis function enables or disables the access of a certain RAID 4 or RAID 5 Array Drive to theHot Fix Pool.If the access

199*+RW3OXJ5HSODFH'ULYHIn a similar way as was described a few pages before with the RAID 1 Array Drives, this func-tion is designed

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200A list of the Array Drive's components is displayed. For our example we choose No.1 for theHot Plug.GDTMON scans the ICP Controller's I/O

201The list of Disk Drive Positions shows us the following:No.0 This is the position of the drive which should be replaced. Since it is stillthere, th

202For our example we now take the new hard disk (which must have a capacity equal or largerthan 200MB) set it to SCSI ID 3 and observe the SCSI termi

203If the new drive, which we have plugged in just before, had contained data from a previousoperation with a ICP Controller, GDTMON would have report

204GDTMON shows the failed drive (No.1),After pressing the <ENTER>-key, GDTMON scans the ICP Controller for free plugging posi-tions:

205The list of Disk Drive Positions shows us the following:No.0 This is the position of the drive which should be replaced. Since it is still there,bu

206For our example we now take the new hard disk (which must have a capacity equal to orlarger than 200MB) set it to SCSI ID 3 and observe the SCSI te

207GDTMON has detected data on the new drive (i.e., it was already used as a Logical Drivewith a ICP Controller).This confirmation deletes all data on

208The Array Drive changes its state to rebuild. This means that the ICP Controller rebuilds theoriginal data on the new drive.

209*+RW3OXJ$GGSULYDWH+RW)L['ULYHThis function allows you to add a Hot Fix Drive to an existing RAID 4 / RAID 5 Array Drive."P

21$2SHUDWLQJ6\VWHP'ULYHU6RIWZDUHDrivers for the following operating systems are available:2SHUDWLQJ6\VWHP 'ULYHULQFOXGHGZLWKWKH

210For our example, we choose the drive on Channel C and SCSI ID 4. (If we would plug in nowa new drive we would have to set the SCSI ID to 4 and mak

211If we now look at the Array Drive's structure (press <F2>), we can see the new drive addedas a Hot Fix Drive to the Array Drive.*

212We select SCSI Channel C and ID4 for the new Pool Hot Fix Drive.You may disable or enable the access of a certain RAID 4/5 Array Drive to the pool

213*+RW3OXJ5HPRYH3RRO+RW)L['ULYHIn a similar way as with the "Remove private Hot Fix Drive" function, here you can remov

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30%+DUGZDUH,QVWDOODWLRQ%%HIRUH,QVWDOODWLRQThe ICP Controller is designed for minimum power consumption and maximum opera-tional security. It

31Recommended SIMM ManufacturersSIMMs from Goldstar, Motorola, NEC, Samsung, Siemens, Texas Instruments, and Toshibahave been successfully tested with

32%6&6,%DVLFVWhoever has been involved with the subject of SCSI will have noticed that the "Small Com-puter System Interface" is a

33In LVDS-Mode, an SE signal wire and its associated SE ground wire (GND) build a differen-tial pair. Therefore, please take care when choosing an ext

3416 Bit, wide Fast SE 20 MB/sec. 15 2.0 meters16 Bit, wide Fast-20, Ultra SE 40 MB/sec. 4 1.5 meters16 Bit, wide Fast-40, Ultra2 LVDS 80 MB/sec. 15 1

35([DPSOHIRUD6&6,)ODW5LEERQ&DEOHIRU%LW6&6,'HYLFHVQDUURZ

36([DPSOHIRUD6&6,)ODW5LEERQ&DEOHIRU%LW6&6,'HYLFHVZLGH

37([DPSOHIRUH[WHUQDO:LGH8OWUDFDEOHV0HWHUVDQG0HWHUV

38%6&6,7HUPLQDWLRQIn order to ensure a flawless and interference-free signal transmission on the SCSI bus andto minimize the detrimental ef

39*'75'*'75'*'75'*'75'*'75'Valid connections and required GDTSETUP setti

4//LLPPLLWWHHGG ::DDUUUUDDQQWW\\,&3YRUWH[&RUSRUDWLRQ,&3YRUWH[JXDUDQWHHVWKDWWKLVSURGXFWLVIUHHIURPGHIHFWVLQPDWHULDODQGZ

40*'75'Valid connections and required GDTSETUP settings for the Wide/Ultra2 SCSIChannels A, B and C.External UHD Connector, 68 pin Inter

41%,&36&6,$FFHVVRULHVOrder # Part Name Description Application8840 Fast-SCSIBracketExternal SCSI connector with aninternal 50 pin head

42/9'66(7HUPLQDWRUIRUSLQ6(RU/9'6FDEOH

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44%([DPSOHVOn the following pages, are some examples of correct SCSI cabling.First of all a few general tips: The ICP firmware always assigns

452QHLQWHUQDO:LGH8OWUD6&6,+DUG'LVN

466HYHUDOLQWHUQDO:LGH8OWUD6&6,+DUG'LVNV

47,QWHUQDODQGH[WHUQDO:LGH8OWUD6&6,+DUG'LVNV

48,QWHUQDODQGH[WHUQDO:LGH8OWUD6&6,+DUG'LVNVDQG6('HYLFHV

49,QYDOLG&RQILJXUDWLRQ

53LFNXSWKHSKRQHLI\RXQHHGWHFKQLFDOVXSSRUWDQGGLDOWKHQXPEHUV)RU(XURSH)RUWKH86$RUVHQGXVD)$;)RU(XURS

50%,QVWDOOLQJWKH,&3&RQWUROOHUMake sure that the ICP Controller is equipped with an appropriate SIMM. As already men-tioned it is not po

51Step 7If required, you can connect the HDD-front-LEDs of the PCI computer system to the LEDconnectors of the ICP Controller.Step 8Before the PCI com

521. The PCI computer system must automatically assign (map) the ICP Controller BIOS toan adequate address in the lower, 1MB area of the computer syst

53The GDT boot message appears. In the following example, a GDT6518RD Controller hasbeen detected in PCI slot 3, and it has 16MB of RAM ("16 MB R

54*'75'+:/0%5$0N%N%)ODVK5$0*'75'+:/ stands for the type of ICP Controller found by the GDT

55you might have to disable the shadowing manually in the system-BIOS setup program. Inaddition, make sure that this address space is not used by anot

56Loading GDTSETUP under MS-DOS becomes necessary, when you want to use GDTSETUP'sintegrated partitioning functions, or when you have totally dis

57Press the <F2>-key for the Advanced Setup.Select Configure Controller and press <ENTER>.

58The fields can be selected by moving the cursor keys Ç and È . The values can be changedby pressing <ENTER> and selecting a new setting. Leave

595. The update process starts as soon as the desired GDT_RPFW file has been selected.Strictly observe the messages and instructions of GDTSETUP. It

6Important NoteUsing modern RAID Systems significantly increases data security and availability. Under nocircumstances does it relieve you from a care

60%$GGLWLRQDO1RWHVBefore the computer is switched off or a hard reset is carried out, the ICP Controller first hasto write the current contents

61&KDSWHU&44XXLLFFNN66HHWWXXSS

62&4XLFN6HWXS&:KDWLVWKH$LPRI4XLFN6HWXS"In the previous chapter we installed the ICP Controller in a PCI computer and conne

63Before we go through these examples step by step, we would like to explain a few termsand relations important for the basic understanding of the ICP

64&7KH'LIIHUHQW5$,'/HYHOV5$,''DWD6WULSLQJAccording to the ad-justed stripe size (e.g.,16 KB) and the numberof h

655$,''DWD6WULSLQJ:LWKD'HGLFDWHG3DULW\'ULYHRAID 4 works in the same way as RAID 0. The data are striped amongst the har

665$,'&RPELQDWLRQRI5$,'DQG5$,'The idea behind RAID10 is simply based onthe combination ofRAID 0 (Performance)and RAID

67&7KH([SUHVV6HWXS)XQFWLRQRI*'76(783Whenever you load GDTSETUP and select the desired ICP Controller, it comes up in itsEXPRESS Se

68Host Drives). Use the <SPACE>-bar to select the desired hard disks (they are marked withan "*"). On the right side GDTSETUP offers h

69After the confirmation, the Host Drive is automatically built up and configured.After leaving GDTSETUP the parity information is generated.For chapt

7))&&&&&&RRPPSSOLOLDDQQFFHH66WWDDWWHHPPHHQQWW,QIRUPDWLRQIRUWKH8VHU127(7KLVHTXLSPHQWKDVEHHQWHVWHGDQGIRXQGWRFRP

70&/HYHOVRI+LHUDUFK\:LWKLQWKH*'7)LUPZDUHBoth GDT firmware versions (Standard and RAIDYNE) are based on four fundamental levelsof hi

71Within GDTSETUP, each level of hierarchy has its own special menu:/HYHOÖ Menu: Configure Physical Devices/HYHOÖ Menu: Configure Logical Drives/H

72b.) Load GDTX000 automatically through the CONFIG.SYS file (DEVICE=GDTX000.EXE)Note: GDTSETUP.EXE as well as GDTX000.EXE are on the System Disk - DO

736WHS&RQILJXUH3K\VLFDO'HYLFHVNow activate the menu Configure Physical Devices (level 1). A list appears showing all harddisks found on

74(Note: On Channel B, SCSI ID 0, is a drive which has been already initialized before. This isnot relevant for our examples).The Configure Disk menu

751. Sync. Transfer: EnableThe SCSI-bus allows an asynchronous and a synchronous transfer. Every SCSI device mustbe able to perform the first type of

76Press <Y> and we are back on the main screen of level 1 and see that the initialization-status of the SCSI device has changed.6WHS&RQI

77The main screen of level 2 appears. Move the selection bar to Create new Logical Drive andpress <ENTER> .Note: The already existing Logical Dr

78Select the initialized hard disk with the <SPACE>-bar (it becomes marked with an "*") andpress <ENTER>.For security reasons, y

79The dialog box is closed and we are back in the main menu of level 2.As you can see, we have already created a new Logical Drive of the type Disk. T

87DEOHRI&RQWHQWV$,1752'8&7,21$3URGXFW,GHQWL

80Since we have only a single disk assigned to a Logical Drive, there is nothing to do in theConfigure Array Drives menu, thus we go directly to the C

81We should not forget to mention, that if you would have selected Create new Host Drive, thiswould have lead you to the same menu as the Express Setu

82As we are done with the installation and therefore definitely want to leave GDTSETUP, wepress any key.IMPORTANT: Always end GDTSETUP by leaving the

83&([DPSOH,QVWDOOLQJD0LUURULQJ$UUD\5$,'This example is applicable to all ICP Controllers.It is our intention to install a Mi

84Note: The already existing Logical Drive in the first position of this list has no relevance forour example. The second entry was created before.Sel

85For security reasons, you will be asked again if you want to use the selected disk to create aLogical Drive.As we are sure of our choice, we confirm

86As you can see, we have created another Logical Drive of the type Disk. The name of theLogical Drive is assigned automatically and contains the chan

87Since we want to create a new Array Drive press <ENTER>.Note: The first entry in this list has no relevance for our example.Move the selection

88Move the selection bar with the cursor key p to the next entry and press the <SPACE>-bar,again. It is marked with an "*"(pressing th

89GDTSETUP displays a security request, which we answer with <Y>.As you can easily recognize, we have created a new Array Drive of the Type RAID

9%6ZLWFKLQJ2QWKH3&,&RPSXWHU6\VWHP %7URXEOH6KRRWLQJ

90disks, which are connected with different SCSI channels of the ICP Controller, both write-accesses are performed simultaneously (this method is ofte

91GDT-Channel A  DR1  DR2GDT-Channel B  DR3GDT-Channel C  DR4  DR5We make sure that all three channels have a proper SCSI bus termination. T

92You may ask now, what are the differences between the two GDTSETUP variants ?They are small. The GDTSETUP variant loadable from disk under MS-DOS al

93The screen shows you: the channel to which a SCSI device is connected which SCSI-ID the drive has (the entry SCSI I/O Processor stands for the c

941. Sync. Transfer: EnableThe SCSI-bus allows an asynchronous and a synchronous transfer. Every SCSI device mustbe able to perform the first type of

954. ProtocolThis can be either SCSI-II or SCSI-III.If you select SCSI-III make sure, that your hard disk supports this protocol. Most new multi-GB ha

96Initialize the remaining four SEAGATE drives as described above, that is: Select the device with the cursor keys n and p and press the <ENTER&g

976WHS&RQILJXUH/RJLFDO'ULYHVWe now leave level 1 (by pressing the <ESC>-key) and are back in the main menu. Now,with the cursor k

98Select the initialized hard disk with the <SPACE>-bar (it becomes marked with an "*") andpress <ENTER>.For security reasons, y

99least this capacity. The 68 MB in our example would be lost. For this example we use thefull capacity and press <ENTER> .The dialog box is clo