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3par f400 service manualHP P art Number: QL22 6 -9 6 9 5 3 P ublished: May 20 1 3 1 2 3. 130 Summary of content (130 pages) Page 1 HP 3PAR F-Class, T-Class, and StoreServ 10000 Storage Troubleshooting Guide for HP 3PAR OS 3.1.2 Abstract This guide is for system administrators and experienced users who are familiar with HP 3PAR F-Class, T-Class, and StoreServ 10000 Storage systems, understand the operating system(s) they are using, and have a working knowledge of RAID. Valid license from HP required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license. The information contained herein is subject to change without notice. Page 3 Contents 1 Component Numbering for T-Class Storage System.7 Identifying Storage System Components.34 Service Processor Placement.37 Understanding Component Numbering.39 Cabinet Numbering. Page 4 5 Understanding F-Class Storage System LED Status.66 Using the F-Class Component LEDs.66 Bezel LEDs.66 Removing the Bezels and Unlocking the Door.67 Drive Chassis LEDs. Page 5 Cage Suggested Action 2.103 Cage Example 3.104 Cage Suggested Action 3.104 Cage Example 4.105 Cage Suggested Action 4. Page 6 Format of Possible Port Exception Messages.119 Port Suggested Actions, General.119 Port Example 1.119 Port Suggested Action 1.119 Port Example 2. Page 7 1 Component Numbering for T-Class Storage System NOTE: Illustrations in this chapter show sample systems and might not match your configuration. Identifying Storage System Components Figure 1 (page 7) and Figure 2 (page 8) identify the major components of the T400 Storage System in a 2M (40U) HP 3PAR cabinet.http://ecogestval.com/userfiles/file/4-speed-manual-transmission-shift-pattern.xml
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Page 8 Figure 2 T400 Rear View Service Processor Placement The Service Processor (SP) is located at the bottom of the cabinet and is designed to support all actions required for maintenance of the storage system, providing real-time, automated monitoring. The SP also supports remote access to diagnose and resolve potential problems. The SP is usually installed directly above the PDUs and below the battery tray (Figure 3 (page 9)) and is powered internally by the storage system. Page 9 Figure 3 Placement of the SP NOTE: In the T800, the SP is located above the backplane, below the lowest drive chassis but above the upper battery tray. Figure 5 (page 11) illustrates SP placement for the T800. When a cabinet does not include a SP, a filler panel covers the area of the cabinet that the SP normally occupies. Page 10 Figure 4 Numbering of Chassis Bays in the Cabinet A storage system can be housed in a single cabinet or multiple cabinets. When multiple cabinets are required, the first cabinet (the controller node cabinet ) holds the storage system backplane populated with controller nodes. Any additional cabinets, or drive chassis cabinets, hold the additional drive chassis that do not fit into the controller node cabinet. Page 11 Figure 5 Controller Node Cabinet Component Layout Understanding Component Numbering 11 Page 12 Figure 6 Drive Chassis Cabinet Component Layout PDU Numbering For each cabinet, the four Power Distribution Units (PDUs) occupy the lowest chassis bay in the cabinet. Figure 7 (page 12) illustrates the four PDUs at the bottom of a T-Class cabinet. Page 13 NOTE: In the T800, PDUs are positioned back-to-back so that they only take up 2U of space at the bottom of the cabinet rather than the standard 4U of space. PDUs are accessible from both the front and the rear of the storage system. “Controller Node Cabinet Component Layout” (page 11) illustrates PDU placement for the T800.http://utopyainsaat.com.tr/fckfiles/4-speed-manual-transmission-mustang.xml Each PDU has two power banks, each with a separate circuit breaker, to be used exclusively for storage system components (Figure 8 (page 13)). Page 14 A battery tray can hold a maximum of four BBUs. The number of BBUs and battery trays in a system depends on the number of controller nodes installed (Table 2 (page 45)). Page 15 Figure 11 Magnetek BBU Numbering Scheme Controller Node Numbering The T-Class Storage System contain two, four, six, or eight controller nodes per system and only use T-Class controller nodes. Controller nodes are loaded into the backplane enclosure from bottom to top. Therefore, for the T800 with only two controller nodes installed, those controller nodes would occupy the lowest 4U of the backplane and would be numbered, node 6 and node 7. Page 16 Figure 12 Numbering of Controller Nodes As shown in Figure 13 (page 17), a controller node contains six PCI slots. These slots accept PCI adapters such as dual-port Fibre Channel adapters, iSCSI adapters, and Ethernet adapters. The controller node also has a management Ethernet port (E0) and a maintenance port (C1). Page 17 Figure 13 Numbering for Dual-Port Fibre Channel Adapters in the Controller Node PCI Slots Each Fibre Channel adapter in a PCI slot has four ports. Each iSCSI adapter in a PCI slot has two or four ports. Inside the controller node are control cache DIMMs and data cache DIMMs. Page 18 Figure 14 Control Cache and Data Cache DIMMs in a T-Class Controller Node Numbers for controller nodes and their components are assigned in the order indicated in Table 3 (page 18). Table 3 Numbering System for Controller Nodes and their Components The Following Components. Are Numbered. Running from. Page 19 Drive chassis are always placed above the storage system backplane enclosure and numbered according to their position in relation to the backplane, as shown in Figure 15 (page 49).http://www.drupalitalia.org/node/67588 Figure 15 Numbering of Drive Chassis NOTE: For systems occupying multiple cabinets, drive chassis numbers continue at the bottom of the next cabinet and progress through the top of the cabinet. Figure 16 (page 20) and Figure 17 (page 20) illustrate individual drive chassis components and how they are numbered. Table 4 Numbering System for Drive Chassis Components 20 The Following Components. Are Numbered. Running from. Drive cages 0,1,. Page 21 Table 4 Numbering System for Drive Chassis Components (continued) The Following Components. Are Numbered. Running from. Fibre Channel ports FC-AL 0 FC-AL 1 A0,B0 A1,B1 top to bottom Drive magazines 0,1,2,3,4,5,6,7,8,9 left to right Disks on the drive magazine 0,1,2,3 rear to front Drive Magazine Allocation For highest availability and data protection, drive magazines are placed on different loops and internal power domains by loading them in the order illustrated by Figure 18 (page 52). Page 22 NOTE: For further instructions on drive magazine allocation, see the HP 3PAR T-Class Storage System Installation and Deinstallation Guide. Power Supply Numbering Cabinets are divided into upper and lower power domains that contain drive cages or controller nodes and dedicated power supplies. Drive cages and controller nodes depend on these power supplies, located at the rear of the system, to supply power from the PDUs at the bottom of the cabinet. Page 23 2 Component Numbering for F-Class Storage System NOTE: Illustrations in this chapter show sample systems and might not match your configuration. Identifying Storage System Components Figure 20 (page 23) and Figure 21 (page 24) identify the major components of an F-Class Storage System. Page 24 Figure 21 F400 Rear View Service Processor Placement The Service Processor (SP) is located at the bottom of the cabinet and is designed to support all actions required for maintenance of the storage system, providing real-time automated monitoring.http://aquaer.com/images/3par-e200-manual.pdf The SP also supports remote access to diagnose and resolve potential problems. Because the SP is capable of supporting multiple storage systems at the same operating site, not all cabinets contain a SP. Page 25 Understanding Component Numbering Because of the almost unlimited number of potential configurations, there is standardized component placement and internal cabling to simplify installation and maintenance. For this reason, system components are placed in the cabinet according to the principles outlined in this section and numbered according to their order and location in the cabinet. Cabinet Numbering The F-Class Storage System 2M (40U) cabinet is an EIA-standard rack that holds storage system components. Page 26 Table 5 (page 26) describes the pattern for cabinet numbering in multi-cabinet storage systems and for operating sites with multiple systems: Table 5 Cabinet Numbering Cabinet Number Controller node cabinet C00 Drive chassis cabinets connecting to the first node cabinet C01, C02, C03.C09 Figure 23 (page 26) shows the location of controller node and drive chassis components for the storage system cabinet in the F200 and F400. Page 27 Figure 24 Numbering of PDUs Each PDU has two power banks, each with a separate circuit breaker, to be used exclusively for storage system components (Figure 25 (page 27)). Figure 25 PDU Power Banks WARNING. To avoid possible injury, damage to storage system equipment, and potential loss of data, do not use the surplus power outlets in the storage system PDUs. Page 28 Figure 26 Numbering of Controller Nodes A controller node contains two controller slots and two on-board Ethernet ports. See Figure 27 (page 29) for specific port type assignments. Page 29 Figure 27 Numbering for Dual-Port Fibre Channel Adapters in the Controller Node PCI Slots Each Fibre Channel adapter in a PCI slot has two or four Fibre Channel ports. Inside the controller node are data cache DIMMs and control cache DIMMs. Page 30 Drive Chassis Numbering Depending on configuration, an F-Class Storage System can include up to 10 drive chassis. A drive chassis houses 16 drive magazines. Drive chassis are first placed sequentially below controller node 1 (controller node 3 in an F400) and then sequentially above controller node 0. Drive chassis are numbered as shown in Figure 29 (page 30). Page 31 Figure 30 Drive Chassis - Front View, Drive Magazine Bay Numbering Figure 31 Drive Chassis - Rear View, Port Numbering Drive Magazine Allocation For highest availability and data protection, drive magazines are placed on different loops and internal power domains by loading them in the order described in by Table 6 (page 32). Page 32 Table 6 Drive Magazine Loading Pattern Group Number Drive Magazine Pair Number Drive Magazine Bay 1 1 0, 4 2 11, 15 3 8, 12 4 3, 7 5 1, 5 6 10, 14 7 9, 13 8 2, 6 2 3 4 NOTE: The loading sequence displayed in the table above indicates the loading order is in vertical columns. All drives in a vertical column must be of the same type and speed. Mixing drive types and speeds in the same column may cause unpredictable results. Page 33 Figure 33 Numbering of Power Supplies Understanding Component Numbering 33 Page 34 3 Component Numbering for HP 3PAR StoreServ 10000 Storage NOTE: Illustrations in this chapter only display examples of systems and may not match any particular storage system configuration. Identifying Storage System Components Figure 34 (page 34) through Figure 37 (page 37) identify major components of an HP 3PAR StoreServ 10000 Storage in a 2M cabinet. The SP provides real-time, automated monitoring of the storage system. The SP also supports remote access for HP to diagnose and resolve potential problems. The SP is adjacent to the controller node chassis and resides in the lower section of the cabinet or third-party rack. Page 40 Figure 41 (page 40), Figure 42 (page 41), and Figure 43 (page 41) illustrate the PDUs in the HP 3PAR StoreServ 10000 Storage cabinet. To avoid possible injury, damage to storage system equipment, and potential loss of data, do not use the surplus power outlets in the storage server PDUs. Never use outlets in the PDUs to power components that do not belong to the storage server or to power storage server components that reside in other cabinets. Page 44 Table 8 Fan Module Configuration Based Upon System and Number of Controller Nodes System Controller Nodes Fan Modules 10400 2 4 4 8 2 4 4 8 6 12 8 16 10800 The illustration explains the numbering scheme for the fan modules within a controller node. Page 45 Figure 49 Battery Module Battery module placement may vary according to the type of system configuration and number of installed controller nodes (Table 2 (page 45)). The controller node chassis is located at the rear of the storage cabinet. From the rear of the storage cabinet, component numbering starts with zero (0) from left to right. For example, the node in the lower left position is identified as Node 0 and the adjacent node (right) is identifed as Node 1. Page 48 As shown in Figure 53 (page 48), a controller node contains nine PCI slots. The following slots connect PCI adapters such as quad-port Fibre Channel Adapters and Converged Network Adapters (CNA). Each controller node features a main administrative Ethernet port (E0), Remote Copy Ethernet port (RCIP) (E1), and a console maintenance port (S0). Figure 56 (page 50) and Figure 57 (page 51) illustrate individual drive chassis components and the numbering scheme. The Fibre Channel ports in the FC-AL adapters located on each side of the drive chassis enable connection to the controller nodes. Table 11 Numbering System for Drive Chassis Components The Following Components. Are Numbered. Running from. Drive cages 0,1,. Page 52 Figure 58 Pattern for Loading Initial Drive Magazines Into the Drive Chassis Power Supply Numbering Cabinets are divided into lower and upper power domains containing drive cages or controller nodes with dedicated power supplies. The drive cages and controller nodes depend on the power supplies located at the rear of the system to supply power from the PDUs. These LEDs help diagnose basic hardware problems. You can quickly identify hardware problems by examining the LEDs on all the components and using the following tables and illustrations in this chapter. Page 56 Figure 62 Connections and LEDs on the DC4 Drive Cage FC-AL Modules Table 12 Drive Cage DC4 FC-AL Module LED Displays LED Appearance Indicates RX Steady green light The presence of a small form-factor pluggable optical transceiver (SFP) and a valid signal from the node. No light No connection to the node or no SFP is installed. Steady green light The presence of an SFP and the LED is on and transmitting. No light No SFP is present or the SFP transmitter failed. Page 57 Table 12 Drive Cage DC4 FC-AL Module LED Displays (continued) LED Appearance Indicates high-level threshold, or a power supply has failed. Rapid toggle between amber and green light A cage firmware upgrade initiated by the upgradecage CLI command is in progress. Page 58 Figure 63 DC4 Drive Magazine LEDs Table 13 Drive Magazine LED Displays LED Appearance Indicates Drive magazine status Steady green light The drive magazine is functioning properly. Steady amber light A drive magazine error, or one or more drives are bypassed on at least one path. Disk status Hot plug 58 Quick flashing, or 20 percent on, 80 The disk is not spun up but has power.Page 59 Controller Node LEDs Depending on configuration, storage systsem contain between two and eight controller nodes, all located in the chassis. Controller nodes contain the following LEDs (Figure 64 (page 59)): Figure 64 Controller Node LEDs Table 14 Controller Node LED Displays LED Appearance Indicates Disk hot plug Steady amber light Disk is prepared for hot plug. No light Disk is not prepared for hot plug. Page 60 Table 14 Controller Node LED Displays (continued) LED Ethernet status Appearance Indicates Flashing green light No Ethernet activity. No light No Ethernet connection. Page 61 Figure 66 iSCSI Adapter Ports and LEDs Table 16 iSCSI Adapter Port LED Displays LED Appearance Indicates Port 1, 2 No light No connection or active link. Steady green light Link is established. Flashing green light Recieving or transmitting activity. Page 62 Figure 67 Power Supply LEDs NOTE: The appearance of the drive chassis and controller node power supplies can vary slightly according to manufacturer and location. Table 17 Power Supply LED Displays LED Appearance Indicates Power supply status Steady green light Power is on. Steady amber light Power supply error. No light Broken connection. Steady green light AC is entering from an external source. Page 63 Battery Backup Unit LEDs Depending on the configuration, storage systems with HP 3PAR cabinets include one or more battery trays that hold up to four BBUs each. BBUs supply power to write the cache memory to the drive inside the node in the event of a power failure. Page 64 Supermicro Service Processor LEDs Supermicro LEDs are located at the top of the SP. Figure 70 Supermicro SP LEDs Table 19 Supermicro SP LEDs LED Appearance Indicates Power No light SP is off. Steady green light SP is on. No light No hard drive activity. Flashing amber light Hard drive activity. No light Port is not connected. Steady green light Port is connected. Flashing green light Network activity. No light SP temperature is normal. Steady red light SP temperature is overheating. Page 65 Figure 71 Supermicro II SP LEDs Table 20 Supermicro II SP LEDs LED Appearance Indicates Power No light SP is off. Steady green light SP is on. No light No hard drive activity. Flashing amber light Hard drive activity. No light Port is not connected. Steady green light Port is connected. Flashing green light Network activity. No light SP temperature is normal. Steady red light SP temperature is overheating. Flashing red light SP has a failed fan. Page 66 5 Understanding F-Class Storage System LED Status Using the F-Class Component LEDs The F-Class Storage System components have LEDs to indicate whether or not the hardware is functioning properly and to help identify errors. These LEDs help diagnose basic hardware problems. You can quickly identify hardware problems by examining the LEDs on all the components and using the following tables and illustrations in this chapter. Page 67 Table 21 Bezel LED Displays (continued) LED Appearance Indicates Steady amber light Error within the node. Steady amber and hot-plug LED amber Fatal node failure. (see Controller Node LEDs on page 5.13) Removing the Bezels and Unlocking the Door If your HP 3PAR cabinet has locking fascias, you must first remove the fascias to access the system bezel. WARNING! Hazardous energy is located behind the rear access door of the storage system cabinet. Use caution when working with the door open. Power On LED is steady green. ? System Fault LED is steady amber. ? Invalid Address LED is steady amber. ? 2GB Link Speed LED is steady green. Flashing amber light Invalid address mode ID switch setting if Power On LED is steady green. Page 71 Interface Card LEDs The drive chassis contains two interface cards, FC-AL-A and FC-AL-B, with the following LEDs: Figure 75 Interface Card LEDs Table 23 Interface Card LED Displays LED Appearance Indicates Host Port 0, 1, 2, 3 Steady green light The incoming Fibre Channel signal is good. Steady green light All device ports are good at 2GB. No light All device ports are good at 1GB. Flashing green light Drives are bypassed by module. Steady amber light FC-AL module is failed. Steady amber light The power supply is not operating correctly. Steady green light Indicates the AC input is normal. Steady amber light Indicates AC input failure. Steady green light Indicates the fan is operating normally. Steady amber light There is a fan fault. Page 73 Figure 77 Drive Magazine LEDs Table 25 Drive Magazine LED Displays LED Appearance Indicates Activity Steady green light Drive power is present. Blinking green light There is drive activity. Slowly blinking green light (once every 3 seconds) The drive has spun down. No light A drive is not present. Steady amber light There is a drive fault. No light No drive is present. Drive power is on. Drive activity. Page 74 Figure 78 Controller Node LEDs Table 26 Controller Node LED Displays LED Appearance Indicates Disk hot plug Steady amber light Disk is prepared for hot plug. No light Disk is not prepared for hot plug. Steady amber light In combination with the status LED blinking green three times per second, indicates the node is prepared for removal. In combination with the status LED being solid, indicates a fatal failure. No light The node is not prepared for removal. Steady green light Link is established. Flashing green light Recieving or transmitting activity. Emulex Fibre Channel Port LEDs The Emulex Fibre Channel adapter in the controller node also contain Fibre Channel port LEDs. Two port Emulex Fibre Channel adapters are only used in an F-Class Storage System (Figure 81 (page 76)). Page 77 Controller Node Power Supply LEDs F-Class Storage System controller node power supply units are located on both sides of the controller nodes. The battery is integral to the controller node power supply. The LEDs are located on the rear of the power supply units: Figure 82 Controller Node Power Supply LEDs Table 30 Power Supply LED Displays LED Appearance Indicates Power supply status Steady green light Power is on. Steady amber light Power supply error. Page 78 A blue illuminated lamp denotes that power is being supplied to a power bank. When the blue lamp is not illuminated, the power bank is not receiving AC input. Service Processor LEDs There are two types of service processors. Supermicro Service Processor The Supermicro SP LEDs are located at the top of the SP (Figure 84 (page 78)). Figure 84 Supermicro SP LEDs Table 31 Supermicro SP LED Displays LED Appearance Indicates Power No light SP is off. Steady green light SP is on. Page 79 Figure 85 Supermicro II SP LEDs Table 32 Supermicro II SP LED Displays LED Appearance Indicates Power No light SP is off. Steady green light SP is on. No light No hard drive activity. Flashing amber light Hard drive activity. No light Port is not connected. Steady green light Port is connected. Flashing green light Network activity. No light SP temperature is normal. Steady red light SP temperature is overheating. Flashing red light SP has a failed fan. Page 80 6 Understanding HP 3PAR StoreServ 10000 Storage LED Status The storage system components have LEDs to indicate whether or not the hardware is functioning properly and to help identify errors. The LEDs help diagnose basic hardware problems. You can quickly identify hardware problems by examining the LEDs on all of the components and using the tables and illustrations in this chapter. If you detect any problems during inspection of the LEDs, contact your Authorized Service Provider. Page 81 DC4 Drive Cage FC-AL Module LEDs The DC4 drive cage FC-AL modules have the following LEDs: Figure 87 FC-AL LED and Port Locations Table 33 Drive Cage DC4 FC-AL Module LEDs LED Appearance Indicates RX Steady green light A presence of a small form-factor pluggable optical transceiver (SFP) and a valid signal from the node. No light No connection to the node or no SFP is installed. Steady green light A presence of an SFP and that the LED is on and transmitting. Page 82 Table 33 Drive Cage DC4 FC-AL Module LEDs (continued) LED Appearance Indicates FC-AL module error or other cage error. If both FC-AL modules have a steady light, the temperature of a disk drive in the drive-cage has exceeded its high-level threshold, or a power supply has failed. Page 83 Drive Magazine LEDs NOTE: After powering on, allow approximately two minutes for the disks on the drive magazine to spin up before checking the drive magazine LEDs. Drive magazines have the following LEDs: Figure 88 Drive Magazine LEDs Table 34 Drive Magazine LEDs LED Appearance Indicates Drive magazine status Steady green light The drive magazine is functioning properly. Steady amber light A drive magazine error, or one or more drives are bypassed on at least one path. Page 84 Controller Node LEDs Depending on configuration, storage systems contain between two and eight controller nodes, all located in the chassis. Controller nodes have the following LEDs: NOTE: You can issue the locatenode command to flash all service LEDs associated to a controller node blue. This includes the power supplies, battery modules, and fan module LEDs. Table 35 Controller Node LEDs LED Appearance Indicates Node Disk No light Normal operation. Page 85 Table 35 Controller Node LEDs (continued) LED HBA Service Appearance Indicates Rapidly flashing green light (three times per second) The node is booting, or, in combination with a blue service LED, the node is safe to remove. Flashing amber light The node has joined the cluster but there is a degraded component associated with the node. A slow flashing light means the node is part of the cluster. Steady amber light An error within the node. Page 86 Fan Module LEDs The 10400 controller node chassis can hold up to eight fan modules that each hold two fans, and the 10800 can hold up to 16. Fan modules have the following LEDs: Table 36 Fan Module LEDs LED Appearance Indicates Status Green Normal operation, no faults. Amber Fan speed is too low, failed, off or not working properly. With a blue service LED, the fan module failed and was not able to recover in 60 seconds. Replace the fan module. Solid Blue The servicenode start fan has been issued. Page 87 Fibre Channel Adapter Port LEDs The Fibre Channel adapter in the controller node also contains Fibre Channel port LEDs: Figure 90 Fibre Channel LEDs Table 37 Fibre Channel Adapter LEDs LED Appearance Indicates Port 1-4 No light Wake up failure (dead device) or power is not applied. (Port speed) Amber light off Not connected. Page 88 CNA Port LEDs The Converged Network Adapter (CNA) includes two ports with corresponding LEDs: Figure 91 CNA Port LEDs Table 38 CNA Port LEDs LED Appearance Indicates Link No light Link down Steady green light Link up No light No activity. The drive chassis and controller node power supplies have the following LEDs: Drive Chassis Power Supply LEDs Drive chassis power supplies are located at the rear of the drive chassis. Figure 93 Drive Chassis Power Supply LEDs Table 40 Drive Chassis Power Supply LEDs LED Appearance Indicates Power Supply Status Steady green light Power is on. Steady amber light Power supply error. No light Broken connection. Page 91 Controller Node Power Supply LEDs The controller node power supplies are located behind the cable management tray in the node chassis. Figure 94 Controller Node Power Supply LEDs The power supply service LED is located on the dividers between the power supplies. Figure 95 Controller Node Power Supply Service LED Table 41 Controller Node Power Supply LEDs LED Appearance Indicates Power Status Steady green light Power is on. Steady amber light Power supply error. No light Broken connection. Page 92 Battery Module LEDs Depending on configuration, storage systems include one or two battery compartments that hold up to four battery modules each. Each node has one battery module. Each battery module has three LEDs: Figure 96 Battery Module LEDs Table 42 Battery Module LEDs LED Appearance Indicates Charging Green Battery modules is being charged. Amber Battery module is at fault. Off Battery module is not in node or connected. Green Battery module output is on and supplying power to the node. Page 93 Service Processor LEDs There are two types of SPs. Supermicro II Service Processor The Supermicro II LEDs are located at the front of the SP: Figure 97 Supermicro II SP LEDs Table 43 Supermicro II SP LEDs LED Appearance Indicates Power No light SP is off. Steady green light SPis on. No light No hard drive activity. Flashing amber light Hard drive activity. No light Port is not connected. Steady green light Port is connected. Flashing green light Network activity. Powering Off the Storage System When it is necessary to power off the storage system, use the following steps to safely remove power from the storage system and the SP. NOTE: PDUs in any expansion cabinets connected to the storage system may need to be shut off. Use the locatesys command to identify all connected cabinets.Verify that the blue LED on the front of the SP is illuminated. Verify that all drive chassis LEDs are solid green and all controller node status LEDs are blinking green once per second. Page 98 8 Alerts Alerts are triggered by events that require intervention by the system administrator. This chapter provides a list of alerts identified by message code, the message(s), and what action should be taken for each alert.