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Troubleshooting

•

For the position of these LEDs on an SNC 4501, see

Figure 14

on 43 and refer to

Table 3

on page

44.

If there is a non-fatal power supply problem, or if a problem is detected before shut down occurs, the

Fault

LED flashes. The Fault LED also flashes briefly during start up. For more information, refer to

Visually

Inspect LEDs

on page 41.

Figure 12

LEDs on the Front of the SNC 4500

Table 1

LEDs on the Front of the SNC 4500

LED

Appearance

Meaning

Ethernet speed LED

amber

speed is 1 Gb/sec

Ethernet speed LED

green

speed is 100 MB/sec

Ethernet speed LED

off

speed is 10 MB/sec, or no link

Ethernet BUSY LED

blinking

I/O activity

Fault LED

on, amber

unit is starting up

Fault LED

blinking

fatal fault imminent

Ready LED

green on

POST completed, unit ready

SCSI bus activity LED

blinking

I/O activity

SCSI bus activity LED

solid

heavy I/O activity

Power

green on

sufficient power to operate

Power

off

power is insufficient

Содержание SNC 4500

Страница 1: ...www adic com ADVANCED DIGITAL INFORMATION CORPORATION SNC 450xUser sGuide...

Страница 2: ...ns at any time without notice This publication may describe designs for which patents are pending or have been granted By publishing this information ADIC Europe conveys no license under any patent or...

Страница 3: ...4500 Dimensions 5 SNC 4501 Dimensions 5 Operating Environment 5 Power 6 3 Getting Started 7 Before Installing the SNC 7 Installing the SNC 8 Installing the SNC 4500 on a Desktop 8 Installing the SNC...

Страница 4: ...the Serial Port 37 Configuring the Time and Date 37 Configuring the Ethernet Port 37 Configuring the SCSI Ports 37 Configuring iSCSI 38 Configuring the SNC 38 Mapping 38 Configuring Advanced Propertie...

Страница 5: ...CLI 51 Alphabetical Listing of Commands 57 9 Removal and Replacement Procedures 103 Handling ESD Sensitive Parts 103 Removing the SNC 4500 103 Replacing the SNC 4500 104 Before Removing and Replacing...

Страница 6: ...vi Contents...

Страница 7: ...This guide is intended for operators administrators and maintenance personnel who interact with the SNC 4500 and SNC 4501 hardware Associated Documents The following documents are associated with this...

Страница 8: ...y an insulator Getting More Information If you want more information about your product visit the ADIC website or contact the ADIC Technical Assistance Center ATAC ADIC Technical Assistance Center If...

Страница 9: ...he SNC 4501 receives power directly from the Scalar 24 The SNC 4500 is installed externally to the Scalar 100 in standard 19 racks or free standing near the library The SNC 4501 is integrated into the...

Страница 10: ...nt through the SNC Manager the management GUI This port is labeled Ethernet port 2 on the SNC 4500 in Figure 1 and on the SNC 4501 in Figure 2 It may also be used as a data port In the command line in...

Страница 11: ...ata Bits 8 Parity None Stop Bits 1 Flow Control None Terminal type ASCII Echo off Operating Specifications This section contains the physical electrical and environmental specifications for the SNC 45...

Страница 12: ...n the power supply Power draw 15 Watts Battery backed event log SRAM Typically the rechargeable Lithium ion battery cell holds memory for more than 30 days during power off Recharging begins automatic...

Страница 13: ...705 If you are using the UDP protocol ntp port 123 SNMP port 161 Be sure your host system is set up and configured Your host system can use any of three different types of cards a network interface ca...

Страница 14: ...roper AC source outlet 3 Proceed to the section Connecting the SCSI Ports on page 11 Installing the SNC 4500 in a Rack 1 Using the screws provided screw the bracket s flat side to one side of the SNC...

Страница 15: ...SNC to the proper AC source outlet 6 Proceed to the section Connecting the SCSI Ports on page 11 Installing the SNC 4501 1 If the Scalar 24 is on turn the power off 2 Locate the SNC slot on the rear o...

Страница 16: ...Loosen the four thumbscrews on the cover plate and remove the cover plate Note Store the cover plate in a convenient place You must replace it later for proper operation and cooling of the library if...

Страница 17: ...s auto negotiates the appropriate sync rates with connected drives If slower single ended SE drives are mixed with faster low voltage differential LVD drives the bus communicates at the rate of the sl...

Страница 18: ...Terminate drive 1 See Figure 3 Stop here if you have only one LTO 1 or SDLT drive If you have two LTO 1 or SDLT drives proceed to Step 5 5 Connect sb1 on the SNC to drive 2 6 Terminate drive 2 See Fig...

Страница 19: ...ble to connect drive 1 to drive 2 9 Terminate drive 2 See Figure 4 on page 14 Stop here if you have only four LTO 1 or SDLT drives If you have six LTO 1 or SDLT drives proceed to Step 12 See Figure 5...

Страница 20: ...14 Getting Started Figure 4 Scalar 100 with Four LTO 1 or SDLT Drives...

Страница 21: ...the Scalar 100 Four or Six LTO 2 Drives 1 Turn off the library and SNC if they are on 2 Check the type of cable cable length limit and number of devices recommended for each port For general guideline...

Страница 22: ...8 Connect sb0 on SNC 2 to drive 3 9 Terminate drive 3 10 Connect sb1 on SNC 2 to drive 4 11 Terminate drive 4 See Figure 6 on page 17 Stop here if you have only four LTO 2 drives If you have six LTO 2...

Страница 23: ...SNC 450x User s Guide 17 Figure 6 Scalar 100 with Four LTO 2 Drives...

Страница 24: ...7 Scalar 100 with Six LTO 2 Drives Connecting to the Serial Port Use the serial port to log on and configure the Ethernet ports Note You must have completed the previous installation steps before you...

Страница 25: ...t 15 seconds when the library has finished booting turn on the SNC If you are using the SNC 4501 just turn on the library 3 Start a terminal emulation program on the personal computer and use it to co...

Страница 26: ...ed DRAM Pattern Test 3 Passed DRAM Pattern Test 4 Passed SRAM Pattern Test 1 Passed SRAM Pattern Test 2 Passed SRAM Pattern Test 3 Passed SRAM Pattern Test 4 Passed BBRAM Pattern Test 1 Passed BBRAM P...

Страница 27: ...ime continue with the section Connecting to the Ethernet Management Port If you were sent to this section by another procedure return to that procedure Connecting to the Ethernet Management Port The m...

Страница 28: ...ompt is returned issue the set IPGateway mp0 command There is no default gateway Ready set IPGateway mp0 172 17 76 0 Press Enter Ready CAUTION Obtain appropriate IP addresses gateways and subnet masks...

Страница 29: ...ration steps Refer to Configuring the SNC on page 25 Note You must have completed the previous procedures in this chapter before you complete the installation Other special configurations may be requi...

Страница 30: ...24 Getting Started...

Страница 31: ...Explorer 5 5 or Netscape Navigator 6 2 1 Obtain the IP address of the SNC mp0 This address was set in Step 2 on page 22 in the section Connecting to the Ethernet Management Port on page 21 2 Point you...

Страница 32: ...and date 1 If you have not already open an SNC Manager session For instructions refer to Opening an SNC Manager Session on page 25 2 Click Time Date 3 If you are setting the time manually proceed to...

Страница 33: ...o set an IP address for Ethernet port 2 the management port you can use SNC Manager to configure the Ethernet data ports 0 and 1 1 If you have not already open an SNC Manager session For instructions...

Страница 34: ...ter on the SNC network to the SNC mp0 dp0 and dp1 CAUTION Consult your service representative before changing the Ethernet speed values or the MTU Maximum Transmission Unit values CAUTION If the host...

Страница 35: ...he appropriate SCSI device This mapping needs to be defined when the SNC is first set up See Figure 10 Figure 10 Physical and Virtual Connection Possibilities With the SNC The device map is persistent...

Страница 36: ...the order of the SCSI IDs For detailed troubleshooting procedures refer to Troubleshooting on page 41 If devices still are not properly displayed contact ATAC 6 Go to the Restart page 7 Click Restart...

Страница 37: ...utes Refer to firmwareRestart on page 62 Other Ways of Connecting to and Monitoring the SNC Using Telnet Up to three Telnet sessions can be conducted simultaneously A serial port session can use the C...

Страница 38: ...lt values for the username admin and the password Password if you did not set new values in Connecting to the Ethernet Management Port on page 21 username admin password Password 6 Enter the appropria...

Страница 39: ...rmware image file its extension is ima from the ZIP archive to the personal computer hard drive Note the path and filename 2 Start up an FTP program on the computer The FTP program must be in binary m...

Страница 40: ...the terminal program choose Transfer Send File ZModem send 6 In the Send File box enter the current SNC IMA file name or click the Browse button to find it For example Ready put c SNC_firmware I250011...

Страница 41: ...avigating SNC Manager All pages are accessible by clicking on their links on the left side of the page You can also go back one page or go to the home page by clicking the links on the left side of th...

Страница 42: ...rough the menu at the left side of each page Checking Status The Status page displays SNC information which is usually found in the POST or after using an Info command in the CLI Refer to info on page...

Страница 43: ...rnet port you are using to access SNC Manager the mp0 the change does not take effect until after you reboot the SNC Enable disable DHCP IP address IP gateway IP subnet mask Ethernet speed MTU Maximum...

Страница 44: ...gure the following options User name New password Confirm password Minimum operating temperature internal Maximum operating temperature internal Operating temperature warning Identify the SNC Restore...

Страница 45: ...ents a firmware restart of the SNC and makes permanent any changes you have made since the last firmware restart Restarting the firmware can take a few minutes Refer to firmwareRestart on page 62 1 Cl...

Страница 46: ...40 Using the SNC Manager Interface...

Страница 47: ...ost Event Log Check the event log on the host Look for the most recent entries and determine what could be causing a problem then go to that event and continue troubleshooting Check the SNC Event and...

Страница 48: ...on the Front of the SNC 4500 Table 1 LEDs on the Front of the SNC 4500 LED Appearance Meaning Ethernet speed LED amber speed is 1 Gb sec Ethernet speed LED green speed is 100 MB sec Ethernet speed LED...

Страница 49: ...NC 4500 LED Appearance Meaning Ethernet activity LEDs green blinking I O activity Ethernet activity LED off no link Ethernet speed LEDs amber on speed is 1 Gb sec Ethernet speed LED off speed is 10 10...

Страница 50: ...Operating system version Service pack version Host adapter version Host adapter firmware version Host adapter device driver version iSCSI driver version If an update is required perform the update For...

Страница 51: ...oblem occurs This helps pinpoint the drive or cable causing the problem 7 Check with the manufacturer of SCSI device s for further troubleshooting methods If SCSI devices appear to be working order mo...

Страница 52: ...environment See Configuring the Ethernet Port on page 37 3 Verify that the Ethernet speed is set to auto invoke the get EthernetSpeed all command check the Ethernet page of the SNC Manager interface...

Страница 53: ...adapter or NIC 1 Check cable integrity Check the cables for solid connections Make sure they are plugged in properly Inspect cable ends for broken clips and improper wiring 2 Verify that the iSCSI ho...

Страница 54: ...connected to SNC If not get the latest device drivers and install them 2 Verify with the application vendor if the iSCSI technology is supported on the version of the application being used Performan...

Страница 55: ...he main LAN network traffic For better performance the IP SAN should be on its own set of hardware 3 Verify that packets are not being dropped along the LAN WAN Many utilities track packet activity an...

Страница 56: ...drive to minimize the time needed to access the host s virtual memory The more memory a system has the less time it spends accessing virtual memory hard drive space Checking the Operating System If po...

Страница 57: ...e enclosed in square brackets while arguments which are optional are enclosed in angle brackets Set commands change the value of a parameter or configuration setting and sometimes require a saveConfig...

Страница 58: ...s Used by the CLI Abbreviation Meaning Numeric Argument Ranges mp Management port 0 dp Data port 0 1 sb SCSI bus number 0 1 sl SCSI LUN ID 0 7 st SCSI target ID 0 15 Table 6 Alphabetical Listing of Co...

Страница 59: ...erature 92 set MinOpTemp set the minimum operating temperature 93 set OpTempWarn set the number of degrees before a thermal control event warns about the temperature change through system log entries...

Страница 60: ...lay version numbers and other product information 79 isReserved display the reservation status of the current SNC session 79 SCSITargets display a list of SCSI devices operational on the referenced SC...

Страница 61: ...sfers are negotiated 96 set SpeedWrite improve the performance of WRITE commands 98 set SpeedWriteDefault specify SpeedWrite as the default performance level 99 iSCSI Configuration Commands get iSCSIA...

Страница 62: ...ress 89 set IPGateway set the IP gateway address 89 set IPSubnetMask set the IP subnet mask 90 set Password set the password 93 set Username set the username 101 Serial Port Configuration Commands get...

Страница 63: ...The third command is the routeDisplay command again This time the new mapping the one assigned by automap is displayed This command takes effect immediately Here is the existing map Ready routedisplay...

Страница 64: ...g entries begin The following is an example of a page of the displayeventlog command output followed by a request for the next page followed by ESC and Return Ready displayeventlog Bridge Event Log 01...

Страница 65: ...This command takes effect immediately Ready displaytracelog ADIC SNC Trace Log W 0608 12 10 2003 11 25 22 Bus 0 Target ID 1 CDB 03 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 Stat 02 Sense Data 70 00...

Страница 66: ...nse Data 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0616 12 10 2003 11 25 22 Bus 0 Target ID 1 CDB 03 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 Stat 02 Sense Data 70 00 02 00 00 00 00 1c...

Страница 67: ...nd dumps the contents of the entire trace log to an RS 232 or TCP IP session without clearing the trace log No events are recorded until the command has been completed This command takes effect immedi...

Страница 68: ...mediately Uart is Initialized DRAM Data Line Test Passed SRAM Data Line Test Passed BBRAM Data Line Test Passed DRAM Address Line Test Passed SRAM Address Line Test Passed BBRAM Address Line Test Pass...

Страница 69: ...si interface 1 Register R W test Passed Scsi interface 1 Reset test Passed Scsi interface 1 FIFO test Passed Scsi interface 1 Master test Passed Initializing Port DP0 Initializing Port DP1 Initializin...

Страница 70: ...DisplayEventLogFilter all all command get displayeventlogfilter all all 25 Subsystem Level Filter Status ENET INFO disabled ENET WARN disabled CAUTION Contact ATAC before using this command Subsystem...

Страница 71: ...SCSI all port number The get DisplayTraceLogFilter command displays trace log data for specific SNC ports when in DisplayTraceLog mode Refer to set DisplayTraceLogFilter SCSI all port number status on...

Страница 72: ...y get ethernetspeed mp0 EthernetSpeed auto 100 Ready get EventLog The get EventLog command displays whether or not EventLog has been enabled Refer to set EventLog status on page 87 Ready get eventlog...

Страница 73: ...setting or whether it was assigned manually or by DHCP Refer to get IPDHCP port number on page 68 and set IPAddress port number IP address on page 88 The following is an example of the verbose output...

Страница 74: ...d reports the current IP gateway whether it is the default setting or whether it was assigned manually or by DHCP Refer to set IPGateway port number IP address on page 89 The following is an example o...

Страница 75: ...and displays the name assigned to the SNC Refer to set iSCSIAlias alias on page 90 Ready get iscsialias iSCSIAlias Ready get iSCSIChap The get iSCSIChap shows if the CHAP has been enabled or disabled...

Страница 76: ...ber port number on page 91 Ready get iscsiportnumber iSCSIPortNumber 3260 Ready get iSNSLoginControl The get iSNSLoginControl command specifies whether or not logins are controlled by an iSNS server R...

Страница 77: ...internal operating temperature of the SNC in degrees Celsius Valid values are from 0 to 15 The default setting is 0 Refer to set MinOpTemp temperature Ready get minoptemp MinOpTemp 0 C Ready get OpTem...

Страница 78: ...Missing Parameters Usage get set ScsiInitId sb 0 15 get scsiinitid 1 9 Port 1 ScsiInitId 7 Ready get scsiinitid 1 7 Port 1 ScsiInitId 7 Ready get SCSIPortBusSpeed port number The get SCSIPortBusSpeed...

Страница 79: ...ber status on page 95 This command must be followed by saveConfiguration restart Ready get scsiportsynctransfer 0 Port 0 ScsiPortSyncTransfer enabled Ready get SCSIPortTermination port number The get...

Страница 80: ...ialPortBaudRate 115200 Ready get SerialPortEcho The get SerialPortEcho command shows whether or not repetition of keyboard input on the screen has been enabled Refer to set SerialPortEcho status on pa...

Страница 81: ...lity refer to set SpeedWrite SCSI sb st sl all status on page 98 Ready get speedwrite scsi all 9 sb st sl speedWrite State 0 1 0 disabled 0 2 0 disabled 0 3 0 disabled 0 4 0 disabled 1 0 0 disabled 1...

Страница 82: ...et time command displays the current time Refer to set Time time on page 99 Ready get time Time 14 47 17 Ready get TimeZone The get TimeZone command displays the current time zone The and represent a...

Страница 83: ...1 disabled Ready get Username username The get Username command displays the username for all Telnet FTP and SNC Manager web server sessions Refer to set Username username on page 101 Ready get userna...

Страница 84: ...WrapEventLog enabled Ready get WrapTraceLog The get WrapTraceLog shows whether or not WrapTraceLog is enabled Refer to set WrapTraceLog status on page 102 Ready get wraptracelog WrapTraceLog enabled...

Страница 85: ...ct immediately Ready isreserved Reserve Flag NOT set Ready ping port number IP address count size The ping mp0 dp xxx xxx xxx xxx count size command sends an ICMP echo request from the specified SNC m...

Страница 86: ...C is reserved set commands from other users are not executed but get commands will be executed At least one interface must always have access to the SNC This command takes effect immediately Ready res...

Страница 87: ...kes effect immediately The following verbose output shows the results of a RouteDisplay iSCSI command followed by a Route iSCSI command setting the SCSI LUN 9 to the SCSI bus 0 target 9 and LUN 0 foll...

Страница 88: ...ommands require a firmware restart to make the requested change permanent The SNC cannot automatically determine whether or not to restart After you issue the saveConfiguration restart command a promp...

Страница 89: ...ommand displays a list of SCSI devices operational on the referenced SCSI port This command takes effect immediately The following shows the information which is presented after a SsciTargets 0 comman...

Страница 90: ...n issuing the DisplayEventLog command The filter blocks information for one or all of the SCSI buses and Ethernet ports The default setting is disabled for all subsystems and levels Refer to get Displ...

Страница 91: ...nd takes effect immediately Ready set displaytracelogfilter scsi 0 enabled Ready Log Level Choices INFO WARN CRIT FAIL ALL Where INFO Information WARN Warnings CRIT Critical events FAIL Failures ALL A...

Страница 92: ...eed port number speed The set EthernetSpeed command controls the speed of the SNC Ethernet ports Refer to iSCSI Performance Tuning on page 107 If auto is enabled the speed is negotiated When hard set...

Страница 93: ...r a particular subsystem and level that subsystem and level is masked while events are being logged The default setting is disabled for all subsystems and levels Refer to get EventLog Filter subsystem...

Страница 94: ...n restart command must be used to permanently save this configuration Refer to get IPAddress port number on page 67 DHCP is disabled by default This command must be followed by saveConfiguration resta...

Страница 95: ...d controls the current gateway for the SNC Ethernet ports where xxx xxx xxx xxx is the IP gateway address and if IPDHCP has not been enabled The default setting is 0 0 0 0 Refer to get IPGateway port...

Страница 96: ...ADIC SNC 4501 Ready set iSCSIChap status The set iSCSIChap enables or disables the CHAP Challenge Handshake Authentication Protocol used for iSCSI protocol If enabled the SNC tries to negotiate CHAP...

Страница 97: ...ret in TESTL abcdefghijklmn02 Ready set iSCSIChapSecret out pqrstuvwxyz12345 Ready set iSCSIPortNumber port number The set iSCSIPortNumber command specifies the SNC port number which listen for iSCSI...

Страница 98: ...tion Refer to get iSNSServer on page 71 This command must be followed by saveConfiguration restart Ready set isnsserver 192 16 5 198 Ready set MaxOpTemp temperature The set MaxOpTemp command sets the...

Страница 99: ...Configuration restart Ready set optempwarn 5 Ready set Password The restoreConfiguration default command sets the password to the default value Password Passwords are case sensitive They can be from 1...

Страница 100: ...nitiator ID on SCSI port 0 as 15 Ready get SCSIInitID 0 1 ScsiInitID 7 Ready set SCSIInitID 0 15 Ready set SCSIPortBusSpeed port number speed The set SCSIPortBusSpeed command controls the transfer rat...

Страница 101: ...ration restart command must be used to permanently save this configuration The default setting is enabled Refer to get SCSIPortSyncTransfer port number on page 73 Ready set scsiportsynctransfer 0 disa...

Страница 102: ...transfer disabled Ready set SerialPortBaudRate rate The set SerialPortBaudRate command configures the baud rate for the RS 232 serial port The number of data bits per character is fixed at 8 with no p...

Страница 103: ...to initialize or synchronize the time When enabled the SNC contacts the specified NTP time server at reset and every 12 hours thereafter If you want contact with the NTP time server before 12 hours i...

Страница 104: ...I device enables the SpeedWrite state for the device at that address Enabling all sets the SpeedWrite state for each currently mapped SCSI device on the SNC Disabling the set SpeedWrite command leaves...

Страница 105: ...r the SNC if NTP has been disabled Refer to set SNTPServer IP address on page 97 This command takes effect immediately The following is an example of how to set the time manually NTP must be disabled...

Страница 106: ...start Ready Set timezone PST Ready set TraceLog status The set TraceLog command records various aspects of the SCSI traffic it receives to the trace log The default setting is disabled Refer to get Tr...

Страница 107: ...to get Username username on page 77 This command must be followed by saveConfiguration norestart Ready set username alpha Ready set VerboseMode status The set VerboseMode command specifies the detail...

Страница 108: ...ion norestart Ready set wraptracelog disabled Ready ZModem status The ZModem Send command allows transfer of a firmware image to or from the SNC using the ZModem file transfer protocol through the RS...

Страница 109: ...ine If possible keep one hand on the frame when you install or remove an ESD sensitive part Wear an ESD wrist strap Do not place any ESD sensitive parts on the machine cover or on a metal table becaus...

Страница 110: ...moving and Replacing the SNC 4501 1 Verify that the latest configuration has been saved For more information on saving the configuration see saveConfiguration status on page 82 or Opening an SNC Manag...

Страница 111: ...cing the SNC from the Scalar 24 1 Remove the SNC from the protective bag 2 Install the new SNC in the Scalar 24 For more information refer to Installing the SNC on page 8 3 Configure the SNC Refer to...

Страница 112: ...106 Removal and Replacement Procedures...

Страница 113: ...ing Host Ethernet software configuration Network Speed and Processing The faster the network the higher the performance Gigabit Ethernet GbE is currently the fastest network speed available for iSCSI...

Страница 114: ...CSI GbE HBAs are available from several vendors with TCP IP checksum and iSCSI digest processing offload Standard GbE HBAs many with TCP IP checksum offload are also available GbE Network Switches Sev...

Страница 115: ...socket parameters TO 512k echo 4096 MAX_BUF MAX_BUF proc sys net ipv4 tcp_rmem echo 4096 MAX_BUF MAX_BUF proc sys net ipv4 tcp_wmem echo MAX_BUF proc sys net core rmem_max echo MAX_BUF proc sys net c...

Страница 116: ...110 iSCSI Performance Tuning...

Страница 117: ...rference to radio and television reception which can be determined by turning the equipment off and on try to correct the interference by one or more of the following measures Move the receiving anten...

Страница 118: ...rme NMB 003 du Canada European Standards Declaration of Conformity This following statement applies to the SNC This device has been tested in the basic operating configuration and found to be complian...

Страница 119: ...SNC 450x User s Guide 113 BSMI Notice...

Страница 120: ...114 Regulatory Notices...

Страница 121: ...e 26 DB 9 33 defaults 21 devices 44 dimensions 4500 5 4501 5 E environmental notices 2 ESD sensitive parts 2 103 Ethernet 4 27 cabling 108 configuring 21 ports 4 problem with ping 28 explanation of sy...

Страница 122: ...replacing 103 104 RS 232 5 12 S saveConfiguration 51 SCSI cabling 12 18 19 ports 3 12 serial port 5 12 serial port configuration 37 setting date 26 setting time 26 SNC event log 41 SNC Manager 25 35 S...

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