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Nexsan Unity Hardware Maintenance Manual

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HYPER-UNIFIED STORAGE
Nexsan Unity
Hardware Maintenance Guide
Firmware Version Unity v. 5.1
NEXSAN
| 325 E. Hillcrest Drive, Suite #150 | Thousand Oaks, CA 91360 USA
Printed Wednesday, January 02, 2019 |
www.nexsan.com

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  • Page 1 HYPER-UNIFIED STORAGE Nexsan Unity Hardware Maintenance Guide Firmware Version Unity v. 5.1 NEXSAN | 325 E. Hillcrest Drive, Suite #150 | Thousand Oaks, CA 91360 USA Printed Wednesday, January 02, 2019 | www.nexsan.com...
  • Page 2 This manual may contain links to Web sites that were current at the time of publication, but have since been moved or become inactive. It may also contain links to sites owned and operated by third parties. Nexsan is not responsible for the content of any such...

  • Page 3: Table Of Contents

    Replacing a Unity Storage Expansion controller System sub-components Fans Replacing a fan Chapter 3: Customer Replaceable Units: Class 3 Unity Storage System controllers Replacing a Unity Storage System controller Chapter 4: Support-Assisted FRUs: Class 2 DIMMs Identifying a failed DIMM Nexsan Unity www.nexsan.com...
  • Page 4 Back up the old OS SSD Install the new OS SSD Transfer data to the new OS SSD Re-enter IPMI settings Replace and restore the OS SSD on the other unit SATADom Replacing a SATADom Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity 4...
  • Page 5 Field-Replaceable Units (FRUs). CRUs can be performed without any assistance whereas support-assisted FRUs always require help from Nexsan Technical Support. All procedures are rated based on the associated risk to the system should the procedure not be followed correctly. Class 1 procedures have the lowest associated risk and Class 3 procedures have the highest associated risk.
  • Page 6 WARNING: Warnings alert the user to items or situations which may result in severe injury or death to the user. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity 6...
  • Page 7 Nexsan's Technical Services Group provides worldwide assistance with installation, configuration, software support, warranty, and repair for all Nexsan products. A variety of service and support programs are available to provide you with the level of coverage and availability your operation requires.
  • Page 8 When installing the system as a rack-mounted component, ensure that all Nexsan-supplied mounting fixtures are secure. All bolts and screws should be fully tightened. Failure to comply with this may result in the unit not being fully supported in the rack and could lead to the product falling from the rack causing personal injury or falling onto other rack components.

  • Page 9: Chapter 1: Customer-Replaceable Units: Class

    Chapter 1: Customer-Replaceable Units: Class 1 Class 1 CRUs - The following components of the Nexsan Unity Storage Systems are replaceable by the customer without assistance from Technical Support and have little associated risk of causing a complete or partial system failure if the documented replacement procedure is followed correctly. However, if you are unsure about a specific step or process, please contact Nexsan Support for assistance.

  • Page 10: Esd Protection

    Handle printed circuit boards by their edges only. Do NOT touch any of a board’s components, chips, modules, or contacts. When handling replaceable components, do NOT touch any exposed pins or contacts. Place components and modules into their anti-static bags when they are not in use. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 11: Disk Drives

    If there is no spare disk available, the Storage Pool node also displays a failure icon. Secondly, the disk LEDs on the front of the Unity Storage System indicate which disk has failed. A steady red LED on a drive indicates failure. Nexsan Unity www.nexsan.com...
  • Page 12 On the Unity navigation bar, click System > Event Viewer. The Event Viewer includes Critical, Warning, Error, and optionally Information events. Click a link to an event to display a popup of the information. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 13 Chapter 1: Customer-Replaceable Units: Class 1 Figure 1-5: Event log entry for failed disk Figure 1-6: Event log entry indicating that the disk (array) has been rebuilt Nexsan Unity www.nexsan.com...
  • Page 14 * Slot 13: SEAGATE-ST32000444SS 0006 (Serial: XXXXXXX, Size: 2.0 TB) * Slot 14: SEAGATE-ST32000444SS 0006 (Serial: XXXXXXX, Size: 2.0 TB) * Slot 15: SEAGATE-ST32000444SS 0006 (Serial: XXXXXXX, Size: 2.0 TB) * Slot 16: SEAGATE-ST32000444SS 0006 (Serial: XXXXXXX, Size: 2.0 TB) Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 15 Chapter 1: Customer-Replaceable Units: Class 1 When you have all required information, including the specific drive bay that the failed disk occupies, proceed Replacing data disks on page 18. Nexsan Unity www.nexsan.com...

  • Page 16: Fastier Disk Failures

    Unity to send an e-mail whenever a CRITICAL event occurs so that you are notified in the event of a FASTier failure. See "Event logging and notification" in the Nexsan Unity Software User Guide. Nexsan Unity Hardware Maintenance Guide v. 5.1...
  • Page 17 * Slot 3: SEAGATE-ST32000444SS 0006 (Serial: XXXXXXX, Size: 2.0 TB) * Slot 4: SEAGATE-ST32000444SS 0006 (Serial: XXXXXXX, Size: 2.0 TB) When you have all required information, including the specific drive bay that the failed disk occupies, proceed Replacing FASTier drives on page 22. Nexsan Unity www.nexsan.com...

  • Page 18: Replacing Data Disks

    2. Using the drive extraction lever, pull the disk drive out approximately 1/2 to 1 inch, then grasp the drive carrier body and remove the drive the rest of the way. Figure 1-11: Removing the disk drive Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 19 3. Remove the drive carrier from the failed disk and attach it to the new disk. Figure 1-12: Drive carrier screw locations Figure 1-13: US 460 CAUTION: ALWAYS put replacement disk drives into the slot from which the failed disk drives were removed. Do NOT move disk drives between slots. Nexsan Unity www.nexsan.com...
  • Page 20 Disk drives 4. Install the new disk drive: a. Line up the carrier guides with the guides on the front of the Nexsan Unity chassis and slide the disk drive into the slot. b. Hook the top of the extraction handle onto the lip of the chassis.
  • Page 21 2. Click the link to the pool that displays the error. 3. Check the Attempt to clear error state check box and click OK. Figure 1-17: Attempt to clear error state check box The storage pool error is cleared. Nexsan Unity www.nexsan.com...

  • Page 22: Replacing Fastier Drives

    Figure 1-19: Removing the FASTier drive CAUTION: ALWAYS put replacement disk drives into the slot from which the failed disk drives were removed. Do NOT move disk drives between slots. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 23 Chapter 1: Customer-Replaceable Units: Class 1 4. Remove the drive carrier from the failed disk and attach it to the new disk. Figure 1-20: Example drive carrier screw locations Note US 460 Expansions do not use drive carriers for each drive. Nexsan Unity www.nexsan.com...
  • Page 24 Make the appropriate FASTier cache assignments, either READ or WRITE, depending on your system and disk options. See "FASTier caching by storage system" in the Unity Software User Guide. e. Click the Apply button. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 25: Power Supply Units (Psus)

    Figure 1-23: Power supply failure error from the Dashboard On most Unity systems, the front-panel power failure LED corresponding to the failed PSU is illuminated, and the status LED on the back of the PSU is either red or off. Nexsan Unity www.nexsan.com...
  • Page 26 For more information about the failed PSU, do one or more of the following: On the Unity navigation bar, click System > Troubleshoot to display the troubleshooting popup, which contains more information about the PSU failure. Figure 1-24: Troubleshooting popup Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 27 * 12V supply voltage (voltage): unknown [0.00 V] * 5V supply current (misc): unknown * 12V supply current (misc): unknown When you have all required information, including the specific power supply unit that has failed, continue with the appropriate replacement procedure. Nexsan Unity www.nexsan.com...

  • Page 28: Replacing A Standard Psu

    3. Gently pull the extraction handle and remove the PSU from the slot, supporting its weight with your other hand. Figure 1-28: Removing the PSU 4. Orient the replacement PSU so that the latch tab is on the right. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 29 The PSU Status LED lights up green to let you know that the new PSU is working properly, and the power fail LED on the front of the unit turns off. Also, an event is recorded in the event log and can be accessed in the Event Viewer. To open Event Viewer, on the Unity Dashboard, click Events. Nexsan Unity www.nexsan.com...

  • Page 30: Replacing A Us 460 Psu

    Figure 1-31: Event indicating that the PSU has returned to an acceptable range Replacing a US 460 PSU ► To replace a US 460 PSU: 1. Remove the power cord from the failed PSU. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 31 LED on the front of the unit turns green. Also, an event is recorded in the event log and can be accessed in the Event Viewer. On the Unity Dashboard , click Events to open the Event Viewer. Nexsan Unity www.nexsan.com...
  • Page 32 Power supply units (PSUs) Figure 1-34: Event indicating that the PSU has returned to an acceptable range Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 33: Sfps

    3. Orient the new SFP so that the extraction handle points up. 4. Gently slide the new SFP into the slot until it is fully seated. Figure 1-36: Replacing the SFP 5. Attach the cable you removed in Step 1 to the new SFP connector. Nexsan Unity www.nexsan.com...
  • Page 34 SFPs Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity 34...

  • Page 35: Chapter 2: Customer Replaceable Units: Class

    Chapter 2: Customer Replaceable Units: Class 2 Class 2 CRUs - The following components of Nexsan Unity are replaceable by the customer, typically without assistance from Technical Support, but do have some associated risk of causing a complete or partial system failure if the documented replacement procedure is not followed correctly.

  • Page 36: Unity Storage Expansion Controllers

    Dashboard panel. Figure 2-1: Controller failure icons Check the front panel LEDs for controller errors ► For all Unity Storage Systems The heartbeat LED turns red. Figure 2-2: Controller fault LED indicators Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 37: Identify The Controller Numbers Using The Cli

               onboard, third port from the left igb3     : 1000 RJ45 - 1G Copper Network Port            onboard, fourth port from the left For details, consult the Nexsan Unity nxcmd Command Line Interface Reference Guide, available from the Nexsan.com Unity support page.
  • Page 38 Figure 2-4: The troubleshoot popup When you have all required information, including the specific controller that has failed, continue with the appropriate replacement procedure. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 39: Replacing A Unity Storage Expansion Controller

    4. Pull down the extraction handle to disengage the controller from the unit, then gently pull the controller out of the chassis, supporting its weight with the other hand. Figure 2-6: Removing the Unity Storage Expansion controller Nexsan Unity www.nexsan.com...
  • Page 40 7. Replace the SAS cables on the new controller, being sure to put all cables back into the proper ports. See Step 1. 8. Open Unity and verify that the new controller is being recognized by the system. See Navigating Unity in the Nexsan Unity hardware Reference Guide. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 41: System Sub-Components

    * Upper Layer Fan 3 (fan): normal [8400 RPM] 2. Once you identify the failed component, migrate cluster resources from the cluster containing the failed component to the other cluster using Unity. See Moving Cluster Resources in the Nexsan Unity Software User Guide for details.
  • Page 42 6. Pull down the extraction handle to disengage the controller from the unit, then gently pull the controller out of the chassis, supporting its weight with the other hand. See Replacing a Unity Storage System controller on page 54. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 43: Fans

    (designated Upper Layer). Figure 2-8: Locations of fans in a controller ► To replace an upper layer fan 1. Perform the component identification, migrate cluster resources, and controller removal steps under System sub-components on page 41. Nexsan Unity www.nexsan.com...
  • Page 44 Fans 2. Gently lift the fan from its slot. Figure 2-9: Removing upper layer fans 3. If necessary, snip the pull ties holding the fan’s power wires to the chassis. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 45 Figure 2-10: Disconnecting the fan’s power plug 5. Insert the power plug for the replacement fan into the socket and gently press until the retaining tab clicks. 6. If necessary, re-secure the power wires with new pull ties. Nexsan Unity www.nexsan.com...
  • Page 46 Properties panel at the bottom of the screen. 11. Verify that the new fan is working using the sensors command in the command-line interface (CLI). See Accessing the nxadmin CLI and Using the nxadmin CLI’s command-based shell in the Nexsan Unity CLI reference Guide.
  • Page 47 2. Unscrew and remove the bracket holding the upper layer fans in place. Set it aside. Figure 2-12: Removing the fan bracket 3. Gently lift the fan from its slot. Figure 2-13: Removing Lower Layer Fan 1 Nexsan Unity www.nexsan.com...
  • Page 48 9. Guide the controller into the slot and slide it in until some resistance is met, then push the extraction handle up to seat the controller. See Replacing a Unity Storage System controller on page 54. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 49 Properties panel at the bottom of the screen. 12. Verify that the new fan is working using the sensors command in the command-line interface (CLI). See Accessing the nxadmin CLI and Using the nxadmin CLI’s command-based shell in the Nexsan Unity CLI Reference Guide.
  • Page 50 System sub-components on page 41. If the controller does not automatically start up, select it in Unity and click the Turn On button in its Properties panel at the bottom of the screen. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 51 15. Verify that the new fan is working using the sensors command in the command-line interface (CLI). See the Nexsan Unity nxadmin CLI Reference Guide. 16. Migrate the resources back to the controller you removed using Unity. See Moving Cluster Resources in the Nexsan Unity Software User Guide.
  • Page 52 Fans Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity 52...

  • Page 53: Chapter 3: Customer Replaceable Units: Class

    Chapter 3: Customer Replaceable Units: Class 3 Class 3 CRUs - The following components of the Nexsan Unity Storage Systems are replaceable by the customer, typically without assistance from Technical Support, but do have a high associated risk of causing a complete or partial system failure if the documented replacement procedure is not followed correctly.

  • Page 54: Unity Storage System Controllers

    1. Shut down the failed controller through Unity. See Shutting down the cluster or individual cluster nodes in of the Nexsan Unity Software User Guide for details. 2. Remove all cables from the failed controller, being certain to label each with the name and number of the port to which it was attached.
  • Page 55 CAUTION: Be sure that the SATADom power cable wires are clear of the edge of the controller. Failure to do so may result in damage to the wires when the controller is replaced. Figure 3-3: Locations of HBA cards, SFPs, DIMMs, and the SATADom Nexsan Unity www.nexsan.com...
  • Page 56 Properties panel at the bottom of the screen. It may take a few minutes for the new controller to fully start up. 10. Reconfigure the IPMI settings for the controller. See "Setting or modifying IPMI settings" in the Nexsan Unity Software User Guide.

  • Page 57: Chapter 4: Support-Assisted Frus: Class

    Chapter 4: Support-Assisted FRUs: Class 2 Class 2 Support-Assisted FRUs - The following components of the Nexsan Unity Storage Systems are replaceable only with assistance from Nexsan Support as they have some associated risk of causing a complete or partial system failure. Please contact Nexsan Support if one of the following components has failed.

  • Page 58: Dimms

    Note A failed DIMM affects the entire controller, but replacement of a DIMM can only be done by Nexsan Support Group. Please contact Nexsan Support immediately if you suspectz a failed DIMM in your Unity Storage Systems.

  • Page 59: Chapter 5: Support-Assisted Replacements: Class

    Class 3 Support-Assisted FRUs - The following components of the Nexsan Unity Storage Systems are replaceable only by qualified Nexsan Support personnel as they have a high associated risk of causing a complete or partial system failure. Please contact Nexsan Support if one of the following components has failed.

  • Page 60: Chassis

    Use this procedure to diagnose whether the Unity System has a failed chassis. Identifying a failed chassis Only Nexsan Support is able to officially diagnose a chassis as failed. If you suspect a failed chassis please first ensure that no other component may be responsible for the failure; see: Identifying failed disk drives on page 11...
  • Page 61 To install a replacement chassis: 1. Lift the chassis from each side—not from the front or back. 2. Line up the inner-chassis rails with the front of the outer-rack rails. Figure 5-3: Example - Installing a chassis Nexsan Unity www.nexsan.com...
  • Page 62 To remove a chassis. 8. Transfer the disk drives from the old chassis to the replacement chassis in the same configuration. See Replacing FASTier drives on page 22 and Replacing data disks on page 18. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 63 Chapter 5: Support-Assisted Replacements: Class 3 9. Open Nexsan Unity and verify that both controllers are being recognized by the system. Click Cluster Status in the Unity Dashboard for more options. Notes: If the controllers do not automatically start up, select each controller in Unity and click the Turn On Controller button.

  • Page 64: System Ssds

    2. Perform the migrate cluster resources, unit shutdown, and cover removal steps under System sub- components on page 41. Note If the FASTier data cables are not fed through the plastic guides on the top of the clear plastic disk shelf, proceed to step 4. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 65 4. Remove the power and data cables from the cache SSD drive. Note Label each power and data cable with the drive from which it was removed so that it can be properly replaced when you are finished. Figure 5-7: Unplugging OS SSD drive Nexsan Unity www.nexsan.com...
  • Page 66 (see Figure 5-6). 11. Replace the top cover (see System sub-components on page 41) and secure it with the cover screws (see System sub-components on page 41). 12. Return the unit to the rack. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 67 Be sure to put all cables back into the proper ports. See Step 4 under System sub-components page 41. 14. Re-attach the power cables to the power supply units (PSUs) to turn the unit back on. 15. Allow Technical Support to configure the new battery-backed cache SSD disk. Nexsan Unity www.nexsan.com...

  • Page 68: Replacing The Os Ssd

    When Technical Support has finished backing up the OS SSD, you may then continue with the next procedure. Install the new OS SSD Note The OS SSD is the drive that is attached to the SATA 0 port. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 69 Label each cable with the port it was plugged into so that it can be replaced in the proper plug when you are finished. Figure 5-10: Unplugging FASTier cords and sliding them out of the plastic guides Nexsan Unity www.nexsan.com...
  • Page 70 Label each power and data cable with the drive from which it was removed so that all cables can be correctly replaced when you are finished. Figure 5-11: Unplugging OS SSD drive 4. Unlatch the shelf on either side and remove it. Figure 5-12: Removing the plastic shelf Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...

  • Page 71: Transfer Data To The New Os Ssd

    To re-enter IPMI settings for the restored controller: 1. On the Unity Dashboard, click Cluster Status. 2. Click Status > IPMI. 3. Using the settings you recorded in Step 1 of Record system settings on page 68, re-enter the IPMI settings for this unit. Nexsan Unity www.nexsan.com...

  • Page 72: Replace And Restore The Os Ssd On The Other Unit

    3. Make sure that the IPMI settings are configured; if they are not, you must configure them, including assigning an IPMI address to each controller node. 4. Write down all IPMI settings. Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 73 2. Press the small, metal latch near the base of the SATADom, then gently remove the SATADom from the socket. Note The SATADom may be hard to remove. Do NOT force it, but gently oscillate it from side to side until it comes out. Figure 5-14: Removing the old SATADom Nexsan Unity www.nexsan.com...
  • Page 74 Figure 5-15: Removing the SATADom’s power cable 4. Attach the new SATADom to its power cable, then plug the new SATADom power cable into the socket on the board. Figure 5-16: Connecting the new SATADom power cord Nexsan Unity Hardware Maintenance Guide v. 5.1 Unity...
  • Page 75 To re-enter IPMI settings for the restored controller: 1. On the Unity Dashboard, click Cluster Status. 2. Click Status > IPMI. See Step 1 of To record system settings: on page 72. 3. Using the IPMI settings you wrote down, re-enter the IPMI settings for this controller. Nexsan Unity www.nexsan.com...
  • Page 76 This product is protected by one or more of the following patents, and other pending patent applications worldwide: Nexsan® is a trademark or registered trademark of Nexsan Technologies, Inc. The Nexsan logo is a registered trademark of Nexsan Technologies, Inc.

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