Manuale d’uso / di manutenzione del prodotto Disk Array Enclosure del fabbricante NStor Technologies
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nStor Corporation, Inc . © 1996-1998 nStor Corporation, Inc ., All Rights R eserved. 3rd Edition nStor Corporation, Inc . shall not be liable for any damages or for the loss of any information resulting fr om the performance or use of the information contained herein.
Regulator y Information FCC Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device , pursuant to P art 15 of the FCC rules. These limits are designed to pr ovide reasonable pr otection against harmful interference in a r esidential installation.
Power Cord Selection ■ This subsystem is intended for indoor use only . ■ This subsystem is intended to be plugged into a 6A branch cir cuit in Europe .
i Contents Preface v Welcome v Features vi Where to Find Answers vii Registering Your Product vii 1 Getting Started 1 CR8e Subsystem at a Glance 2 Components 4 Hot Swap Disk Drives 4 Hot Swap Cooling .
Contents ii 2 Installation 13 Setup 13 System Requirements 14 Guidelines 14 Rack-Mount Subsystem Assembly 15 Component Installation 17 Cabling Configuration 20 General 20 Ultra Wide SCSI Mode 22 Fast .
Contents iii Replacing a Fuse 62 Replacing the CR8e Cabinet 63 A Glossary 65 B Technical Information 69 Specifications 69 Connectors and Jumpers 70 Connectors 70 Jumpers 72 Index 77.
Contents iv.
v Preface W elcome Congratulations on the pur chase of your ne w CR8e from nStor Corpor ation. The nStor CR8e pro vides a superior fault-tolerant netw ork storage solution in a subsystem-based SAF-TE compliant RAID enclosur e . The CR8e is an eight drive enclosur e designed to support Ultra Wide SCSI (F ast-20) and F ast Wide SCSI protocols.
Preface Features vi Features The following ar e major features of the nStor CR8e disk arr ay subsystem: RAID Le v el Support RAID lev els 0, 1, 3, 5, 1 0 (1 + 0) , 30, and 50. Configuration Deskside tow er-based subsystem or rack-mount subsystem. Driv e Support Up to eight 3.
Preface Where to Find Answers vii Where to Find Answers When you ha ve questions about y our nStor products ther e are se ver al places you can look to find answers. R efer to the follo wing: In this guide This user’s guide provides detailed information for installing and using the CR8e disk arra y subsystem.
Preface Registering Your Product viii.
1 1 Getting Started In this chapter we will pr ovide a description of the components, and the contr ol and onboard monitoring systems found in the CR8e enclosur e . On the next tw o pages are illustr ations that depicts the location of featured components of the CR8e .
Getting Started CR8e Subsystem at a Glance 2 CR8e Subsystem at a Glance Channel Mode LED Power Supply LED Fan Status LED Status Indicator LEDs Note: LEDs normally visible only when illuminated, shown here for identification.
Getting Started CR8e Subsystem at a Glance 3 Power Supply #1 * “DC Good” LED Power Supply #2 * I/O Interface Card I/O Interface Card Cooling Fan #1 * Cooling Fan #2 * Power Supply #3 * with PSU Cover Plate Hard Disk Drive Note: Cover shown cut-away to illustrate recessed power switch.
Getting Started Components 4 Components This section pro vides a descriptive o vervie w of each of the major components that comprise the CR8e subsystem. Hot Swap Disk Drives The CR8e uses either 4.2 gigabyte , 9.1 gigabyte , or 18.2 gigab yte high performance , 3.
Getting Started Hot Swap Power Supplies 5 If an error occurs, access the Oper ator Control P anel to determine the cause and locate the failed component. F or mor e information, see Operator Contr ol P anel on page 40. The fans are identifi ed on the r ear door panel using a placard for “F AN 1” and “F AN 2.
Getting Started I/O Interface Card 6 I/O Interface Card The I/O Interface card pr ovides the connection fr om the subsystem’s bus to the host adapter . Located on the I/O Interface card ar e two 68-pin very high density (VHD) SCSI connectors. The connectors are labeled Channel 0 and Channel 1.
Getting Started Configuration Modules 7 Configuration Modules CAUTION: Configuration modules must be installed or r eplaced by qualified service personnel only . The CR8e’s SCSI bus design pro vides either of two bus configur ations which is determined by the configur ation module installed.
Getting Started Controlling and Monitoring 8 Controlling and Monitoring An integral part of the CR8e is its contr ol and monitor capabilities. The subsystem enclosure contains a series of r edundant alert notifications in the form of LEDs, alarms, and an LCD Operator Contr ol P anel.
Getting Started LEDs 9 An animated icon will appear on the display after 30 seconds of no OCP input activity and pro vides an “ at-a-glance” look at system status. When a “happy” animated face appears, all systems are indicating a nominal state .
Getting Started LEDs 10 P o wer Supply Status The P ow er Supply Status LED indicates the condition of the po w er supplies. The LED will illuminate steady green when all the po wer supplies ar e functioning normally and will change to amber if one of the pow er supplies should fail.
Getting Started Alarm Speaker 11 Alarm Speaker An audible alarm will sound when any component’s condition changes to an abnormal state . The Status Indicator LEDs conditions (color and/or state) will pro vide a general ar ea of failure , and the failed component can then be identified using the Operator Contr ol P anel.
Getting Started SAF-TE Card 12 Disk drives, po wer supplies, cooling fans and temper ature ar e continually monitored and these conditions ar e then reported o ver the SCSI bus to the host system.
2 13 Installation Setup The installation of your nStor CR8e disk arr ay subsystem is essentially a three-step pr ocess: the subsystem is setup and its components installed, the cabling is completed based on the supported configurations, and the arr ay is then configured.
Installation System Requirements 14 System Requirements The nStor CR8e disk subsystem is based on an open architectur e design and can be connected to any host-based SCSI system.
Installation Rack-Mount Subsystem Assembly 15 Rack-Mount Subsystem Assembly Y ou can install the CR8e into any standar d IAE 19" rack cabinet. CAUTION: Ensure that the location of the CR8e does not cr eate an unstable condition when installed in the rack cabinet enclosur e .
Installation Rack-Mount Subsystem Assembly 16 2 T o aide in support brack et installation, remov e the rack cabinet side panels. 3 Locate the two support br ackets. Mount the tw o brack ets to the rack cabinet verticals using the four scr ews, four w ashers, and four caged nuts pro vided for each brack et.
Installation Component Installation 17 Component Installation CAUTION: Disk drives and printed cir cuit board components ar e sensitive to electrostatic dischar ge .
Installation Component Installation 18 6 Fully seat the drive b y applying pressur e with your thumb to the fr ont of the drive . 7 Press the Driv e Latching Clips until they “snap” into place .
Installation Component Installation 19 Installing the Third Power Supply If you will be installing fiv e (5) or more disk driv es you will be r equired to install the third po wer supply . CAUTION: P ow er supply installation is to be performed by qualified service personnel only .
Installation Cabling Configuration 20 Cabling Configuration The Ultra Wide SCSI mode pr ovides enhanced performances with data tr ansfers up to 40 MBs per second (20 MHz), while the F ast Wide SCSI mode will pro vide transfers up to 20 MBs per second (1 0 MHz).
Installation General 21 Because of the enhancements in the CR8e , its possible to e xtend be yond the limits set forth in the specification. H owever, a symptom from ex ceeding this cable limit is a SCSI bus lockup or “freeze .
Installation Ultra Wide SCSI Mode 22 Ultra Wide SCSI Mode Sev eral possible configur ations exist for the CR8e in Ultr a Wide SCSI mode . Howeve r this manual will discuss the two possible configurations using the I/O Interface card in Ultr a Wide SCSI mode: dual-bus module in a single enclosure and single-bus module in a single enclosure .
Installation Ultra Wide SCSI Mode 23 2 Connect the other end of the data cable to the Channel #0 SCSI connector on the right side or upper I/O Interface card. 3 If requir ed, connect one end of the second one meter data cable to the Channel #2 connector on the AM RAID Controller .
Installation Ultra Wide SCSI Mode 24 Single-Bus Enclosure With the Single-Bus module is installed, all of the disk drives in the CR8e enclosure ar e on the same SCSI bus.
Installation Ultra Wide SCSI Mode 25 3 Turn on the pow er to the CR8e . After the power-on self-test has completed, Status and Channel Mode LEDs will be solid green. 4 A ccess the Options menu on the Operator Contr ol P anel and choose the SAFTE CHAIN ID selection.
Installation Fast Wide SCSI Mode 26 Fast Wide SCSI Mode Sev eral possible configur ations exist for the CR8e in the F ast Wide SCSI mode: dual-bus with one or two enclosur es, single-bus with one or two enclosur es, and one dual-bus enclosure with tw o single-bus enclosures connected.
Installation Fast Wide SCSI Mode 27 2 Connect the other end of the first data cable to the Channel #0 SCSI connector on the right side or upper I/O Interface card. 3 If requir ed, connect one end of the second one meter data cable to the Channel #2 connector on the AM RAID Controller .
Installation Fast Wide SCSI Mode 28 T wo Dual-Bus Enclosures With this configuration y ou will hav e a total storage capacity of up to 290 GB (using 18 GB disk drives) which pr ovides 145 GB per channel per subsystem enclosure .
Installation Fast Wide SCSI Mode 29 6 Connect the other end of the jumper cable to the Channel #0 SCSI connector on the left side or low er I/O Interface card in the second cabinet. 7 Connect one end of a second jumper cable to the Channel #1 SCSI connector on the left side or low er I/O Interface card in the first cabinet.
Installation Fast Wide SCSI Mode 30 Single-Bus Enclosure With the Single-Bus module is installed, all of the disk driv es in the CR8e enclosure ar e on the same SCSI bus.
Installation Fast Wide SCSI Mode 31 3 Turn on the pow er to the CR8e . After the power-on self-test has completed, Status and Channel Mode LEDs will be solid green. 4 A ccess the Options menu on the Operator Contr ol P anel and choose the SAFTE CHAIN ID selection.
Installation Fast Wide SCSI Mode 32 T wo Single-Bus Enclosures This configuration is similar to the “Single-Bus Enclosur e” ex cept that the capacity is expanded with a second cabinet pr oviding a total of fourteen driv es per SCSI channel.
Installation Fast Wide SCSI Mode 33 4 Connect the other end of the jumper cable to the Channel #0 SCSI connector on the left side or low er I/O Interface card in the second cabinet. NOTE: SCSI termination is automatic and requir es no user configuration.
Installation Fast Wide SCSI Mode 34 A Dual-Bus Enclosure with T wo Single-Bus Enclosures With this configuration y ou will be able to expand the capacity of each SCSI channel of a Dual-Bus enclosure b y adding a Single-Bus enclosure to each channel.
Installation Fast Wide SCSI Mode 35 6 Connect the other end of the first jumper cable to the Channel #0 SCSI connector on the left side or low er I/O Interface card installed in the Single-Bus enclosure (Sla ve #1).
Installation Other Configurations 36 Other Configurations There ar e many possible combinations of contr ollers and cabling schemes when configuring the CR8e subsystem enclosures. The sample configur ations in the pre vious sections pro vide the basic configurations.
3 37 Using the CR8e In this chapter y ou will find information on the subsystem’s enclosur e notifications systems, and the pr oper use and operation of the Oper ator Control P anel. Notifications and Error Conditions When the CR8e subsystem has pow ered applied, it will perform a pow er on self- test (POST) procedur e .
Using the CR8e Firmware Error Conditions 38 Firmware Error Conditions NO TE: None of the following err or conditions will compromise the data integrity on the CR8e drives. Any of these failur es listed below will gener ate the follo wing: Channel Mode LED blinks amber eight times and the alarm will sound eight tones.
Using the CR8e LED Descriptions 39 All drive LEDs will illuminate solid gr een regar dless of the error conditions. The CR8e needs to be serviced if this error occurs consistently and is not clear ed by cy cling the pow er on the CR8e . Contact nStor T echnical Support.
Using the CR8e Operator Control Panel 40 Operator Control Panel In this section you will find an e xplanation of the Operator Contr ol P anel screen displays, as w ell as a description and subsequent procedur es for using each of the OCP menu functions.
Using the CR8e Power Supply Error Conditions 41 Power Supply Error Conditions During normal operation, an ytime one of the requir ed number of pow er supplies becomes inoperativ e , you will hear a continuous alarm and a warning message will appear on the display .
Using the CR8e Main Menu 42 Main Menu From the Main Menu selection the follo wing options are a vailable: ■ Turn off the audible alarm ■ Select the hardw are menu ■ Select the options menu T o access the Main menu, press the Menu button. Use the up and do wn arrow buttons to make y our selection and press the Enter button.
Using the CR8e Main Menu 43 Component Status The Component Status menu pro vides a view of the po wer supplies and fans installed in the CR8e and their current status. Component status can be either OK, Missing, or F ailed. 1 If you r eceive a Har dwar e Error , access the Main menu and choose the Hardw are Menu .
Using the CR8e Main Menu 44 1 T o view the curr ent enclosure configuration, access the Main menu and choose Hardw are Menu . 2 Use the up/down arr ow buttons to select Configur ation Inf o and press the Enter button. 3 Use the up/down arr ow buttons scr olling to view the curr ent configuration.
Using the CR8e Main Menu 45 1 T o view the POST r esults, access the Main menu and choose Hardw ar e Menu . 2 Use the up/down arr ow buttons to select P ost R esults and press the Enter button. 3 Use the up/down arr ow buttons scr olling to view the complete POST r esults lists.
Using the CR8e Options Menu 46 Options Menu From the Options Menu the follo wing are a vailable: ■ SCSI ID Menu ■ Heat Threshold ■ SAFTE Chain ID ■ Change P asscode ■ Unlock Options SCSI ID .
Using the CR8e Options Menu 47 4 Use the up/down arr ow buttons to mak e your SCSI ID gr oup selection and press the Enter button. Note the flashing set of IDs, if present.
Using the CR8e Options Menu 48 NO TE: When the SAF-TE car d is set to off bus, LEDs and other error r eporting are not driv en by the subsystem’s off bus S AF-TE card, but ar e reported and controlled fr om the “Master” subsystem’s SAF-TE car d.
Using the CR8e Heat Threshold 49 Heat Threshold NO TE: The Heat Threshold v alue is pre-set at the factory and should not be changed unless directed b y nStor T echnical Support. The default setting is 1 16 ° F/47.°C. Choose the Heat Threshold Menu to change the temper ature v alue for the thermal monitoring system.
Using the CR8e SAFTE CHAIN ID 50 SAFTE CHAIN ID This option allows the administr ator to establish the intercabinet S AF-TE communication to support a master and slav e cabinets. The master cabinet can report component failur e for both the master cabinet and up to two sla ve cabinets to the A dminiStor Storage Management softw ar e .
Using the CR8e Change Passcode 51 Change Passcode This option allows the administr ator to create or change a passcode that will protect access to all the items under the selections SCSI ID Menu, Heat Threshold, and Change P asscode . 1 Use the up/down arr o w buttons to select Change P asscode and press the Enter button.
Using the CR8e Unlock Options 52 Unlock Options This option allows the administr ator to unlock the items found under the SCSI ID Menu, Heat Threshold, and Change P asscode selections. This enables the user to change these values and pr otects these values fr om being changed by those not authorized to do so.
4 53 T roubleshooting This chapter pro vides solutions for some of the problems y ou may encounter while using the CR8e subsystem. Common Enclosure Problems Symptom R eason Solution F ails to power on. P ower cor d not connected properly . P ower not a vailable at the outlet.
Troubleshooting Common SCSI Bus Problems 54 Common SCSI Bus Problems SCSI Bus problems can usually be attributed to cabling issues or faulty I/O Interface cards. R efer to the chart on the follo wing page to revie w troublshooting and fault isolation procedur es to assist you in identifying the suspect component.
Troubleshooting Common SCSI Bus Problems 55 SCSI Bus Symptom Probable Cause Solution SCSI Bus hangs, SCSI Bus ex cessive r etries, and/or drives dr op offline . F aulty connectivity . F aulty I/O Interface card. R e-check the cables to the I/O Interface card and host adapter .
Troubleshooting Common Problems and Interpreting the LED Indications 56 Common Problems and Interpreting the LED Indications LED Status R eason Solution Status Indicator LEDs not functioning properly .
5 57 Maintenance In this chapter you will find the maintenance pr ocedures to r eplace individual components, as well as the entir e subsystem enclosure . Replacing a Disk Drive CAUTION: Drives and printed cir cuit board components ar e sensitive to electrostatic dischar ge .
Maintenance Replacing a Power Supply 58 5 Insert the drive into the driv e ba y by aligning its rails into the driv e ba y slots, component side tow ard the right (r ack) or down (to wer). Seat the driv e by applying pressur e with your thumb to the fr ont of the drive .
Maintenance Replacing a Power Supply 59 NOTE: When locating the failed pow er supply , the “DC Good” LED will be OFF . 2 Using a flat-blade scre wdriv er , loosen the rear door access scre w . Open the door to gain access to pow er supplies #1 and #2.
Maintenance Replacing the Cooling Fans 60 Replacing the Cooling Fans CAUTION: Cooling fans must be replaced b y qualified service personnel only . NOTE: There is no need to po wer off the CR8e or the computer system. The cooling fans are hot sw appable .
Maintenance Replacing an I/O Interface Card 61 5 R emov e the new cooling fan from the shipping carton and inspect the shipment. Sav e the packaging material. 6 With the fan guard facing to war d the inside of the cabinet, slide the new fan into its housing.
Maintenance Replacing a Fuse 62 3 Loosen the two thumb scr ews that secur es the card. 4 Insert the new I/O Interface car d and tighten the thumb scre ws. Do not ov ertighten the fasteners. 5 Using the packaging materials fr om the replacement car d, repack age the failed card and r eturn it to nStor Corporation.
Maintenance Replacing the CR8e Cabinet 63 3 Using the tip of your finger nail, ease the holder away fro m the unit. 4 Once remo ved, separ ate the fuse from the holder . 5 R eplace the fuse with one of identical type and rating (250V 1 0A). 6 Insert the fuse into the holder .
Maintenance Replacing the CR8e Cabinet 64 8 If you ha ve a thir d pow er supply installed in the old subsystem, remo ve it and install the PSU into the new enclosur e . 9 R econnect and secure the po wer cord and data cables. 10 Install the drives into the ne w cabinet enclosure in e xactly the same or der as they w ere in the old subsystem.
A 65 Glossar y The following terms ar e used throughout this manual and ma y be helpful background information on the technology . Asynchronous Operations Oper ations that bear no r elationship to each other in time and can ov erlap.
Glossary 66 Disk Mirroring Data written to one disk drive is simultaneously written to another disk drive . If one disk fails, the other disk can be used to run the system and reconstruct the failed disk. Disk Spanning Sev eral disks appear as one large disk using this technology .
Glossary 67 P artition An arra y virtual disk made up of logical disks rather than physical ones. Also called logical v olume . Physical Drive A physical arr a y (or driv e) is a collection of physical disks gov erned by the RAID management softw are .
Glossary 68 SAF-TE Is the acron ym for SCSI A ccessed F ault-T olerant Enclosures. It is a monitoring and communication specification dev eloped by Conner ( n Stor) and Intel for sending and receiving serv er and storage system status information via the SCSI bus.
B 69 T echnical Information SPECIFICATIONS CR8e Operating Envir onment 40 ° F to 94 ° F (+5 ° C to +34 ° C) R elative Humidity Operating/Non-Oper ating 5% - 95% (non-condensing) P ow er R equirements 1 00 - 240 V A C (auto-sensing) 50-60 Hz 6.
Technical Information Connectors and Jumpers 70 CONNECTORS AND JUMPERS This section pro vides information about the connector pinouts on the termination interface card and jumper settings on the backplane printed cir cuit board for y our nStor CR8e subsystem.
Technical Information Connectors 71 +DB(15) 4 7 – DB(15) 38 8 +DB(P1) 5 9 – DB(P1) 39 1 0 +DB(0) 6 1 1 – DB(0) 40 12 +DB(1) 7 13 – DB(1) 41 14 +DB(2) 8 15 – DB(2) 42 16 +DB(3) 9 17 – DB(3).
Technical Information Jumpers 72 Jumpers CAUTION: Jumper configuration to be performed b y qualified service personnel only . Disconnect the A C pow er cord prior to accessing any component inside the r ear cabinet. Located on the backplane printed circuit boar d are six jumper blocks.
Technical Information JP2 (SCSI-to-SCSI Configuration) 73 JP2 (SCSI-to-SCSI Configuration) CAUTION: Jumper configuration to be performed by qualified service personnel only . This jumper (JP2) is used to place the SCSI-to-SCSI RAID controller in a configuration that is kno wn to the CR8e subsystem.
Technical Information JP4 (SCSI ID Settings) 74 JP4 (SCSI ID Settings) CAUTION: Jumper configuration must be performed by qualified service personnel only . These jumpers (JP4) are used to manually set the SCSI IDs for all of the disk driv e slots. JP4 is an eight position dual-ro w header .
Technical Information JP5 (SCA Remote/Delay start) 75 JP5 (SCA Remote/Delay start) CAUTION: Jumper configuration to be performed by qualified service personnel only . The spin-up of the drive slots is determined b y adding jumpers to JP5. JP5 is a two position dual-ro w header .
Technical Information J15 (FAN) and J17 (OEM FAN) 76 J15 (F AN) and J17 (OEM F AN) CAUTION: Jumper configuration to be performed by qualified service personnel only . There ar e two separ ate fan connectors that are located at J15 and J17. F an connector J15 is used when a SAF-TE car d is pr esent in the CR8e .
77 A Activity LEDs 10 Animated icon 41 Audible Alarm 3 B Backplane 72 C Cables 20 Cabling Configuration 20 Change Passcode 51 Channel Mode LED 9 Component Installation 17 Component Status 43 Component.
Index 78 Fan Status LED 10 Fast SCSI 20 Dual-Bus Module (Single Cabinet) 26 Dual-Bus Module (Two Cabinets) 28 Dual-Bus Module Cabinet w/Two Single-Bus Module Cabinets 34 Single-Bus Module (Single Cabi.
Index 79 Registration vii Replacing a Drive 57 Replacing a Fuse 62 Replacing a Power Supply 58 Replacing the Cooling Fans 60 Replacing the CR8e Cabinet 63 Reset Default IDs Selection 48 Resource Guide.
Index 80.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il NStor Technologies Disk Array Enclosure è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del NStor Technologies Disk Array Enclosure - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso NStor Technologies Disk Array Enclosure imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul NStor Technologies Disk Array Enclosure ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il NStor Technologies Disk Array Enclosure, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del NStor Technologies Disk Array Enclosure.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il NStor Technologies Disk Array Enclosure. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo NStor Technologies Disk Array Enclosure insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
