NEC NF2300-SE41E manual

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*1 – The shut down switch has a locking mechanism. To turn on/off the switch, hold and raise the lever.

While the shut down switch is on, the disk array unit does not accept any I/O operation by the host system.

(The Link UP LEDs of the controller's HL0 and HL1 go off.)

*2 – If you turn off the AC power of the disk array unit during write operation (with SDN LED flashing) by mistake, the backup mode is enabled. (In this case, the controller's [BAT LED] goes on.)

If you turn off the AC power of the disk array unit during write operation (with SDN LED flashing) by mistake, turn on the AC power of the entire disk array unit (including the power of the additional disk enclosure) again. When the disk array unit has started (when the READY LED of the controller on the array controller stops flashing and enters the on state), turn off the shut down switch and then turn it on to complete the write operation.

Even if you turn off the AC power after [SDN LED] goes on, [BAT LED] goes on in the following case:

NEC Storage DynamicDataReplication is used, but you attempt to write the remaining cache data before executing the Unpair command.

In the above case, turn on the AC power of the entire disk array unit again. When the disk array unit has started (when the READY LED of the controller on the array controller board stops flashing and enters the on state), turn off the shut down switch. Then, execute the Unpair command for paired disks under NEC Storage DynamicDataReplication, and turn on the shut down switch to complete the write operation.

*3 – Even if you forget to turn off the shut down switch, the disk array unit starts normally when being turned on next time, and accepts I/O operation by the host system. (Normal operation)

Turning off the shut down switch does not influence general operation of the disk array unit.

When turning off the disk array unit again, turn off the shut down switch and then turn it on. The system starts writing data remaining in cache memory onto the disk drive.

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Contents NF2300-SE41E Additional Disk Enclosure Users Guide Page Safety Precautions Page Iii Indication on Safety Page Trademarks Preface Check of Components in Package NF2300-SE41E This Users Guide also uses the following symbol Contents Action Taken AT Occurrence of Fault or Error Page Environment in Use of Additional Disk Enclosure Installation and Connection of Additional Disk Enclosure Page Page Routine Inspection of Additional Disk Enclosure Features of Additional Disk Enclosure Names and Roles of Sections Disk Enclosure FrontPage Disk Enclosure Rear Power Supply for Disk Enclosure Page Adapter Diag Ready LEDPage Installation and Connection Procedures Installation and Connection ProceduresConnection of Additional Disk Enclosure Page Connection of Additional Disk Enclosure OFF Page Page 2 1 on When DE-DIAG ID = 0 When DE-DIAG ID = Sample configuration 1 NF2300-SR4xxE Sample configuration 2 NF2300-SR4xxE + NF2300-SP02E Connection of Power Cords Page Addition of Optional Devices Addition of Disk DriveInstallation procedure Page Page Location 00 in NF2300-SE41E Handling of Additional Disk Enclosure Power On/Off of Additional Disk Enclosure Power switches of disk enclosures Page Page Page Switches of array controller are turned off LD Logical Disk Setting Procedure Spare Disk Setting ProcedureAction Taken AT Occurrence of Fault or Error Additional Disk Enclosure Connection of Additional Disk Indication at Occurrence of Fault Fault of Disk Drive Location label Page Fault of Power Supply for Disk Enclosure Page Page Page Fault of Adapter Be careful that it is hotPage Page Check of Type Name and Manufacturing Numbers Preparation before Phone Call Service and SupportUnit Life/Repair Service Period Disposal of Additional Disk EnclosureOptional Components Product SpecificationBasic Specification of Additional Disk Enclosure Environmental Conditions of Additional Disk EnclosurePower Specification External Dimension and Weight of Additional Disk Enclosure