QNAP ES1642dc Instructions for use

QNAP Enterprise-class NAS Series: ES1642dc, ES1640dc
Hardware User Manual
©2016. QNAP Systems, Inc. All Rights Reserved.

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Thank you for choosing QNAP products! This user manual provides description of the hardware of the
ES NAS and relevant guideline of certain functions. Please read carefully and strictly adhere to the
instructions of the manual.
This user manual is applicable to the following ES NAS models:
ES1642dc and ES1640dc
NOTE:
 The “ES NAS” is hereafter referred to as “NAS” or “ES NAS”.
 The product you purchased may not support certain functions dedicated to specific models.
 All features, functionality, and other product specifications are subject to change without prior
notice or obligation.
 Information presented is subject to change without notice.
 No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any
form or by any means, mechanical, electronic, photocopying, recording, or otherwise, without prior
written permission of QNAP Systems, Inc.
 QNAP and the QNAP logo are registered trademarks of QNAP Systems, Inc. Other products
and company names mentioned herein may be the trademarks of their respective companies.
DISCLAIMER
In no event shall QNAP Systems, Inc. (QNAP) liability exceed the price paid for the product
from direct, indirect, special, incidental, or consequential damages resulting from the use of
the product, its accompanying software, or its documentation. QNAP makes no warranty or
representation, expressed, implied, or statutory, with respect to its products or the contents
or use of this documentation and all accompanying software, and specifically disclaims its
quality, performance, merchantability, or fitness for any particular purpose. QNAP reserves
the right to revise or update its products, software, or documentation without obligation to
notify any individual or entity.
Note:

Back up your system periodically to avoid any potential data loss. QNAP disclaims any
responsibility of all sorts of data loss or recovery.

Should you return any components of the ES NAS package for refund or maintenance, make sure
they are carefully packed for shipping. Any form of damages due to improper packaging will not
be compensated.

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Regulatory Notice
FCC Notice
The QNAP NAS complies with different FCC compliance classes. Please refer to 0 for details. Once
the class of the device is determined, refer to the following corresponding statement.
=======================================================
FCC Class A Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case the user will be
required to correct the interference at his own expense.
Modifications: Any modifications made to this device that are not approved by QNAP Systems, Inc. may
void the authority granted to the user by the FCC to operate this equipment.

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FCC Class B Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
Consult the dealer or an experienced radio/television technician for help.
Modifications: Any modifications made to this device that are not approved by QNAP Systems, Inc. may
void the authority granted to the user by the FCC to operate this equipment.
CE NOTICE
The QNAP NAS complies with different CE compliance classes. Please refer to 0 for details.

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Symbols in this document
Warning
This icon indicates the instructions must be strictly followed. Failure to do
so could result in injury to human body or death.
Caution
This icon indicates the action may lead to disk clearance or loss OR failure
to follow the instructions could result in data damage, disk damage, or
product damage.

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Table of Contents
Chapter 1. Introduction to QNAP ES NAS series .......................................................................................... 9
Chapter 2. Hardware Specifications............................................................................................................ 11
Chapter 3. System Components ................................................................................................................. 13
Front Panel Features ............................................................................................................................... 13
Font Panel LEDs and Buttons .................................................................................................................. 13
Rear Panel Features ................................................................................................................................ 14
Rear Panel LEDs and Buttons .................................................................................................................. 15
Storage Controllers ................................................................................................................................. 16
Redundant Power Supply ........................................................................................................................ 17
PCIe expansion adaptors ......................................................................................................................... 17
Onboard SAS ports .................................................................................................................................. 17
SAS HBAs ................................................................................................................................................. 17
Battery Backup Units (BBU) .................................................................................................................... 17
10GbE networking .................................................................................................................................. 17
Storage Features ..................................................................................................................................... 18
Disk drives and Disk Enclosures .......................................................................................................... 18
RAID implementation .......................................................................................................................... 18
Reset Button Behavior ............................................................................................................................ 20
Management port ................................................................................................................................... 20
Service port ............................................................................................................................................. 20
Connecting Expansion Units ................................................................................................................... 22
Expansion Units Features ........................................................................................................................ 23
Enclosure IDs ........................................................................................................................................... 24
Rear Panel LEDs and Buttons .................................................................................................................. 24
Rear Panel LEDs and Buttons .................................................................................................................. 24
Onboard SAS ports .................................................................................................................................. 25
Disk drives and Disk Enclosures .............................................................................................................. 25
Service port of expansion units............................................................................................................... 25

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Chapter 4. Service and Maintenance .......................................................................................................... 27
Safety Considerations ................................................................................................................................. 27
Preparation Procedures ........................................................................................................................ 28
Powering Down the ES NAS ........................................................................................................................ 28
Replacing the battery backup unit (BBU) ............................................................................................ 28
Replacing hot-plug power supply ........................................................................................................ 29
Replacing hot-plug SAS HDDs .............................................................................................................. 30
Replacing field-replaceable fan modules ............................................................................................. 31
Installing expansion cards .................................................................................................................... 32
Installing DIMMs ................................................................................................................................... 33
Chapter 5. Quick-Deploy Rack kit installation instructions ......................................................................... 36
Overview ................................................................................................................................................. 36
Kit contents ............................................................................................................................................. 36
Mounting the Device .............................................................................................................................. 37
Appendix A: Multipathing Support for High Availability ............................................................................ 40
Appendix B: Beep alarm ............................................................................................................................. 41
Appendix C. Product Compliance Class ....................................................................................................... 42
Technical Support ....................................................................................................................................... 43
GNU GENERAL PUBLIC LICENSE .................................................................................................................. 44

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Safety Warnings
1. The ES NAS can operate normally in temperatures of 0ºC–40ºC (32ºF -104ºF) and relative humidity
of 5%–95%. Please make sure the environment is well-ventilated.
2. The power cord and devices connected to the ES NAS must provide correct supply voltage (770W,
100-240 V@50/60Hz).
3. Do not place the ES NAS in direct sunlight or near chemicals. Make sure the temperature
and humidity of the environment are in optimized level.
4. Unplug the power cord and all connected cables before cleaning. Wipe the ES NAS with a dry
towel. Do not use chemical or aerosol to clean the ES NAS.
5. Do not place any objects on the ES NAS for the server’s normal operation and to avoid overheat.
6. Use the flat head screws in the product package to lock the hard disks in the ES NAS when installing
hard disks for proper operation.
7. Do not place the ES NAS near any liquid.
8. Do not place the ES NAS on any uneven surface to avoid falling off and damage.
9. Make sure the voltage is correct in the location where the ES NAS is installed. Contact the
distributor or the local power supply company for the information.
10. Do not place any object on the power cord.
11. Do not attempt to repair the ES NAS in any occasions. Improper disassembly of the product may
expose the users to electric shock or other risks. For any enquiries, please contact the distributor.
12. The ES NAS models should only be installed in the server room and maintained by the
authorized server manager or IT administrator. The server room is locked by key or keycard access
and only certified staff is allowed to enter the server room.
Warning:

Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type
recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s
instructions.

Do NOT touch the fan inside the system to avoid serious injuries.

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Chapter 1. Introduction to QNAP ES NAS series
The Enterprise Storage NAS (ES NAS) series offers robust functionality, exceptional reliability,
and availability with the common ease of storage management being shared by all of QNAP NAS product
lines.
The ES NAS series consist of two new major products: the ES1642dc and the ES1640dc. Both of these
models are a good fit for the mid-range to large-scale SAN and direct-attach enterprise storage systems.
The ES NAS models have an improved 19 inches high-density frame design. It can support 16 drives, in a
small, high-density footprint that helps to preserve valuable space and energy required for
system cooling in data center environments.
The new ES NAS series has a high availability and serviceability architecture what supports two
redundant Storage Controllers and two power supply units. In addition, t
he EJ1602 and EJ1600
expansion enclosure allow for the growth of the storage system up to the 128 drive maximum, by adding
the 16-drive expansion units to the ES NAS’s SAS drive expansion.
These expansion units also have high
availability features such as dual power supplies and redundant cross loop connection to their base ES
NAS. The new ES NAS series provides a number of new capabilities from other enterprise-class NAS. The
enhancements are:
 To deliver high performance and advanced data services, the ES NAS series uses a combination
of standard enterprise-grade hardware and a storage-optimized, Enterprise operating system
(QES) based on the ZFS file system at its core.
 The dual storage controllers are powered by Intel® Xeon® E5 series processors that can deliver
the exceptional compute power required to concurrently run multiple modern storage
workloads along with advanced data services. In addition, the two active storage controllers
work as a cluster, monitoring one another so that a single controller can take over the storage
resources managed by the other controller in the event of a controller failure.
 New 12 Gbps SAS technology for host and drive attachments.
 Support for greater capacity with new larger capacity SAS drive offerings.
 Cache configurations are available that range from 4 drives up to 16 drives (full-SSD drive set)
system cache.
 Write data is always protected by maintaining a copy in battery-backed nonvolatile storage (NVS)
until the data is written to the HDDs.
 High-density storage enclosures offer a considerable reduction in footprint
and energy consumption.
 Storage Pool Striping (across different expansion units) provides a mechanism to aggregates
hard drives into a bigger storage space, and with the ability to support multiple RAID groups
across different expansion enclosures. (Note that all RAID groups must have the same RAID
type.) Storage Pool Striping helps maximize performance by reducing hot spots in arrays
and provide better data safety.

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 RAID-TP (Triple parity) provided by RAID 7 support with the specialized Storage Controller on the
system
 Triple Mirroring writes data simultaneously to three separate HDDs so if two-thirds of the HDDs
fail in the same RAID group, no data will be lost.
 The support for OpenStack enables the integration with the OpenStack cloud environment.
After the driver is installed on the OpenStack Cinder (OpenStack Block Storage) nodes, storage
volumes can be allocated by the Cinder nodes to the Nova-compute nodes. Virtual machines on
the Nova-compute nodes can then use storage resources on the ES NAS.
Data safety and encryption
Combined with the world-class business resiliency and encryption features, the ES NAS series provides a
unique combination of high availability, performance, and security. Shared folder and LUN encryption
offered the QES operating system can protect business-sensitive data by utilizing drive-based hardware
encryption in combination with a software key. In addition, the WORM (Write Once Read Many)
function provides data tampering prevention and original content retention at shared-folder level. The
LUN Encryption is available for all drive types, including flash drives (SSDs).

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Chapter 2. Hardware Specifications
Caution: Modifying the hardware, software, or firmware of the QNAP products will void the
warranty. QNAP is not responsible for any form of damage or loss of data caused by modifying the
QNAP products. Users should bear their own risks of all sorts of possible data loss or system instabilities
due to changing the hardware parts, modifying the default system firmware or installing any
unauthorized third party applications on QNAP products.
Model No. ES1642dc ES1640dc
Form Factor 3U, Rackmount
Processor Intel Xeon E5-2420 v2
(2.2GHz, 6 core, 15MB L3, 80W TDP)
Storage Controller
(x2 for every system)
DDR3 ECC RDIMM
16GB x2 ( total of 32GB)
16GB x 1 (NVRAM)
Number of Disk
Drives
16 x 2.5"/3.5"
4 x 2.5" SSD
(Default configuration for
read cache acceleration )
12 X 3.5"
16 x 2.5"/3.5"
4 x 2.5" SSD (Default configuration
for read cache acceleration )
12 X 3.5"
HDD Interface SAS 12Gb/s; backward-
compatible to SAS 6Gb/s
and SATA (SATA drives
need SAS-to-SATA interposer
boards.)
SAS 6Gb/s backward-compatible to
SATA (SATA drives need SAS-to-SATA
interposer boards.)
JBOD
Expansion connectors
(x2 for every system)
Two Mini-SAS 12Gb/s ports (SFF-
8644)
Two Mini-SAS 6Gb/s ports (SFF-
8088)
Battery-Backed Write
Cache (x2 for every
system)
M.2 2280 for NVRAM (SATA
signal)
mSATA for NVRAM
10G LAN Port (x2 for
every system)
Four SFP+ (Intel XL710-AM1) Two RJ45 (Intel X540-BT2)
PCIe expansion slots
(x2 for every system)
PCIe Slot x8 (Gen3 x8) for 40GbE network cards
PCIe Slot x4 (Gen2 x4): Pre-installed with a dual-port Mini-SAS adapter

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Fan module (x2 for
every system)
Field-replaceable fan module (60*60*38mm, 16000 RPM/12v/2.8A x 3)
Power Supply 770W 1+1, 100-240V@50/60Hz (hot-swappable, redundant)
Temperature 0° C to 40 ºC
Relative Humidity 5 % to 95 %
Dimensions (mm) 618 (Depth) x 446.2 (Width) x 132 (Height), excluding the handles
Weight (Net) 27.75kg
Expansion Enclosures
Expansion Model EJ1602 EJ1600
Form Factor 3U, Rackmount 3U, Rackmount
Number of Disk
Drives
16 x 2.5"/3.5" 16 x 2.5"/3.5"
HDD Interface SAS 12Gb/s backward-compatible
to
SAS 6Gb/s and SATA (SATA drives
need SAS-to-SATA interposer
boards.)
SAS 6Gb/s backward-compatible to
SATA (SATA drives need SAS-to-
SATA interposer boards.)
JBOD
expansion connector
(x2 for every system)
Two Mini-SAS 12Gb/s ports (SFF-
8644)
Two Mini-SAS 6Gb/s ports (SFF-
8088)
Fan module (x2 for
every system)
Field-replaceable fan module
(60*60*38mm, 16000
RPM/12v/2.8A x 3)
Field-replaceable fan module
(60*60*38mm, 16000
RPM/12v/2.8A x 3)
Power Supply 450W 100-240V@50/60Hz (hot-
swappable, redundant)
450W 100-240V@50/60Hz (hot-
swappable, redundant)
Temperature 0°C to 40 °C 0°C to 40 °C
Relative Humidity 5 % to 95 % 5 % to 95 %
Dimensions (mm) 618 (Depth) x 446.2 (Width) x 132
(Height), excluding the handles
618 (Depth) x 446.2 (Width) x 132
(Height), excluding the handles
Weight (Net) 27.75kg 27.75kg
All product specifications are subject to change without prior notice.

Chapter 3.
System Components
Front Panel Features
The power button, Power/Status L
ED indicators and LCD status display are conveniently located at the
front panel for easy access.
Note:
Refer to next section on Front Panel LEDs and Buttons for detailed descriptions on these features.
Font Panel LEDs and Buttons
Item
Description
LED Color
1
Power on button
2
System Power LED
Green
3
Status
Green
Orange
4
LCD status display
①
②
③
④
⑤
00
System Components
ED indicators and LCD status display are conveniently located at the
Refer to next section on Front Panel LEDs and Buttons for detailed descriptions on these features.
Font Panel LEDs and Buttons
LED Color
Status
System power on button. To force shut down the
press and hold it for about 5 seconds.
Green
On = System power on
Off = System power off
Green
Orange
Green =The system is operating normally.
Orange =
One or more of the following conditions
exist:
 There are system
errors or warnings
degraded RAID mode, memory
failure,
supply failure, system/disk temperature too high,
storage pool reaching threshold value
system logs of the QE
S to notify system
administrators.
Correct errors to
green.
 The system is performing take
over
 The p
ower supply unit has been unplugged.
The two-digit number represents various
booting process. The left and right digits represent the left
Storage Controller and the right Storage Controller (when
facing the front panel) respectively.
No-Display: BIOS booting
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ED indicators and LCD status display are conveniently located at the
Refer to next section on Front Panel LEDs and Buttons for detailed descriptions on these features.
shut down the ES NAS,
operating normally.
One or more of the following conditions
errors or warnings
(e.g.
failure,
fan/power
supply failure, system/disk temperature too high,
storage pool reaching threshold value
) recorded in
S to notify system
Correct errors to
reset the LED to
over
.
(*)
ower supply unit has been unplugged.
digit number represents various states of device
booting process. The left and right digits represent the left
Storage Controller and the right Storage Controller (when

Power Supply
Battery Backup
Unit
5
HDD Status LEDs
(upper)
Green
Red
5
HDD Activity LEDs
(lower)
Green
* The dual active-active controller system enables
managed by the other controller
in the event of a controller failure
or occur automatically when a failover event happens
Rear Panel Features
The rear panel comprises of two St
orage Controllers, which includes I/O expansion slots, Ethernet ports,
USB connectors, onboard
SAS ports, SAS ada
and the BBU.
③④⑤⑥ ⑦ ⑧ ⑨
②
①
PCIe slot
10GbE
Ports
SAS
Ports
(HBA)
Onboard SAS
Port
1: Device detecting
2: Network settings
3: System settings
4: Services start
5: System self-testing
0: System ready
Green
Green On = Drive is actively online.
Red = Error/Damage
Off = No HDD present
Green
On/Slow flashing = No Drive activity
Flashin
g = High activity on the drive or drive is
being configured as part of an array
Caution: Do not replace a drive without
bring it offline first
in the QE
S. You may replace a drive online only when The
drive is online and part of an array that has
been conf
igured for fault tolerance and all other drives in
the array are online, and a predictive failure alert is
received from the QE
S. For more information, refer to the
software user manual.
system enables a single controller to take over the pool disk resources
in the event of a controller failure
.
Takeovers can be initiated manually
or occur automatically when a failover event happens
.
orage Controllers, which includes I/O expansion slots, Ethernet ports,
SAS ports, SAS ada
ptors, power-on button, reset,
system management port
⑩ ⑪ Reset
10GbE
Ports
1GbE
Port
USB 3.0
Ports
Service Port
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g = High activity on the drive or drive is
bring it offline first
S. You may replace a drive online only when The
drive is online and part of an array that has
igured for fault tolerance and all other drives in
the array are online, and a predictive failure alert is
S. For more information, refer to the
er to take over the pool disk resources
Takeovers can be initiated manually
orage Controllers, which includes I/O expansion slots, Ethernet ports,
system management port

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Note: Refer to the following sections for detailed descriptions on these features.
Rear Panel LEDs and Buttons
Item
Description
LED
Color
Status
1
Power supply LED
Green
Orange
On = Power turned on and power supply
functioning properly
Flashing green= System off
Flashing orange= AC power cord is unplugged
Off = One or more of the following conditions
exist:
• AC power unavailable
• Power supply failed
• Power supply exceeded current limit
2
BBU LED (on the
battery module)
Green
Red
Orange
Green = Normal
Flashing Green = Copying data to the mSATA flash
Red = Damage
Orange= Charging/learning
Off = Not correctly attached to the ES NAS
3
Status
Green
Orange
Off = The system is powered off.
Green = The system is operating normally.
Flashing green = The system is booting.
4
Fan
Green
Orange
Green = The fan is operating normally.
Orange = Damage/error
Off = Not detecting any fans
5
BBU LED (on the
Storage Controller)
Green
Orange
Green = Normal
Orange = Error/Damage
Off = One or more of the following conditions
exist:
•The Storage Controller is not powered on
•The system cannot detect the BBU
6
High Availability LED
Green
Orange
Green = Active state
Flashing orange = performing takeover* or undergoing
giveback**
Orange = The Storage Controller has taken over from the
other Storage Controller.
Off = One or more of the following conditions exist:
• The Storage Controller has failed over to the other
Storage Controller.
• The Storage Controller is not powered on.
7
Onboard SAS Port
LED
Green
Red
Off = No link
Green = Network link
Flashing = Network activity

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Red = Error/damage
8
Power-on Button
The Power-on button of the Storage Controller. To shut
down the Storage Controller, press and hold it for
about 5 seconds. It provides the same function as the
Power on and Shut Down function in the High Availability
app on QES.
9 (Left)
10 Gigabit Ethernet
RJ-45 Ports
LAN1/LAN2
Speed LED
Green
Orange
Off
Green = 10 GbE connection
Orange = 1 GbE connection
Off = 100Mbps connection
9 (Right)
10 Gigabit Ethernet
RJ-45 Ports
LAN1/LAN2
link/activity LED
Green
Off = No link
Green = Network link
Flashing = Network activity
9 (for
Model
ES1642dc
10 Gigabit Ethernet
SFP+
LAN1/LAN2
Speed LED
Green
Orange
Off
Green = 10 GbE connection
Orange = 1 GbE connection
9 (for
Model
ES1642dc
10 Gigabit Ethernet
SFP+
LAN1/LAN2
link/activity LED
Off = No link
Green = Network link
Flashing = Network activity
10
Management Port
Link/activity LED
Green
Off
Off = No link
Green = Network link
Flashing = Network activity
10
Management Port
Speed LED
Green
Orange
Orange = 1 GbE connection
Green = 100Mbpsconnection
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Reset
System reset button for rebooting the Storage Controller
without turning off the system power.
* The dual active-active controller system enables the controller to take over the pool disk resources
and have access to all data and serve the data upon failure of the other controller. Takeovers can be
initiated manually or occur automatically when a failover event happens.
**Storage Controller A (or B) has taken over the system. Any issues on Storage Controller B (or A) have
been resolved and it is ready to resume serving data. Giveback is initiated either manually or
automatically.
Storage Controllers
With the dual-controller configuration, the controller on the left is Storage Controller A (SCA) and the
right is Storage B (SCB), as named in the QES, when viewed from the rear of the system.
Dual controller configurations offer redundant access to disk storage. In case of controller or I/O path
failure, the other controller will continue to provide access to disk drives.

17
Each storage controller features a BBU, one SAS HBA (pre-installed in one of the PCIe slot), one PCIe
expansion slot, an onboard 6Gb/s SAS port, power-on button, two 10 Gigabit Ethernet ports, one system
management port, two USB 3.0 ports, one service port, and a reset button.
Redundant Power Supply
The power supply module is a 770 Watt switching power supply. It is auto ranging, 100-127 and 200-
240VAC input capable. The ES NAS has two identical power supply modules for power redundancy. If
either power supply fails, the other module will keep the system running until it can be replaced.
Note: Refer to Rear Panel LEDs and Buttons for power supply LED description.
PCIe expansion adaptors
The ES NAS adopts point-to-point, high-speed PCI Express (PCIe) Gen2 (x4) and Gen3 (x8) for I/O
expansions. The adapters can be either device adapters or host adapters. The system can support one
additional PCIe (Gen3 x8) attachment. The one with Gen2 (x4) is pre-installed with a SAS HBA.
Onboard SAS ports
Two onboard Serial Attached SCSI (SAS) provides point-to-point 6Gb/s data (or 12Gb/s depending on the
model) transmission to other computer storage devices.
SAS HBAs
In addition to the above Serial Attached SCSI (SAS) host attachment port built into the Storage Controller,
a pre-installed SAS HBA provides two additional mini-SAS ports for direct attachment to the expansion
units. The SAS HBA supports either 12Gb/s or 6Gb/s transmission speed depending on the models.
(ES1642dc comes with 12Gb/s SAS HBA whereas ES1640dc comes with 6Gb/s SAS HBA.)
Battery Backup Units (BBU)
The battery is 10.8V 2200mAH.
The cache of QES NAS Storage is protected by a battery against power loss. The BBU provides power to
Battery-Backed Write Cache. The battery provides power if the data in the cache needs to written to the
mSATA memory card if power is disrupted. The write cache is only used if the cache battery is
fully charged. If the batteries fail or are not fully charged, for example, just after powering on,
the controllers automatically disable the write cache. You can schedule the BBU learning cycle in the
QES; for more information, please refer to the software user manual.
10GbE networking
4 x SFP+ (Intel® XL710-AM1) for Model ES1642dc or 2 x RJ45 (Intel® X540-BT2) for Model ES1640dc
Architected and validated with Intel® Xeon® processor E5 v2 platform to deliver a balanced platform as
this ES NAS series, the Ethernet ports base on the Intel XL710 or X540 Ethernet controller implements
hardware optimizations and off-loads for exceptional performance in usage models such as TCP
Stateless Off-loads and Host iSCSI Initiator. In addition, with the virtualization technology built-in on
the controller such as VMDq and SR-IOV, the virtualization on the ES NAS can achieve optimization of

18
the processing of VM data traffic while improving CPU utilization and bandwidth. 40GbE networking can
be easily achieved with the installation of network cards via the PCIe expansion (PCIe Gen3 x8).
Storage Features
Disk drives and Disk Enclosures
The QES NAS storage system supports up to two redundant Storage Controllers with the latest SAS
12Gb/s or 6Gb/s HDD interface (ES1642dc comes with 12Gb/s SAS HDD interface whereas
ES1640dc comes with 6Gb/s HDD interface) in 16 drive configuration, which can be expanded to a
maximum of 128 by attaching up to 7 expansion units . The system supports all-SSD drive set as well as
SAS – SATA intermix within an enclosure. The drives are numbered 1 - 16 sequentially starting from the
bottom left to the top right.
Solid-state drives (SSDs)
The system can accommodate superfast solid-state drives, and traditional spinning disk drives such as
SAS, NL-SAS and SATA drives. (For SATA drives, please order additional SAS-to-SATA interposer boards.)
However, SSDs are the best choice for I/O intensive workload and they can be used for cache
acceleration in QES. Cache configurations are available that range from 4 drives up to 16 drives (full-SSD
drive set) system cache. If you plan to install SSDs as partial drive set, please populate the bottom 4
drives (Drive 1~4) slots since these drives will be the system drives.
RAID implementation
RAID implementation improves data storage reliability and performance.
Redundant array of independent disks (RAID) is a method of configuring multiple disk drives in a storage
subsystem for high availability and high performance. The collection of two or more disk drives presents
the image of a single disk drive to the system. If a single device failure occurs, data can be read or
regenerated from the other disk drives in the array. RAID implementation provides fault-tolerant data
storage by storing the data in different places on multiple disk drive modules (DDMs). By placing data on
multiple disks, I/O operations can overlap in a balanced way to improve the basic reliability
and performance of the attached storage devices. Physical capacity can be configured as RAID 0, RAID 1,
RAID 5, RAID 6, RAID7 and RAID 10, or a combination of these configurations. The specialized Storage
Controller enables the support of RAID 7 on the system. The following provides an overview of these
RAID types:
RAID 0 overview
RAID 0 offers Striping, a process of dividing data into blocks and spreading the data blocks across several
hard drives, but without redundancy for handling disk failures.
RAID 1 overview
Writes a mirrored copy of data to each hard drive, providing data redundancy and protection,
and continues to operate as long as at least one drive is operating normally.

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RAID 5 overview (also referred as RAID-Z1 in ZFS)
RAID 5 is a method of spreading volume data across multiple disk drives. RAID 5 increases performance
by supporting concurrent accesses to the multiple disk drives within each logical volume. Data
protection is provided by parity, which is stored throughout the drives in the array. If a drive fails, the
data on that drive can be restored using all the other drives in the array along with the parity bits that
were created when the data was stored.
RAID 6 overview (also referred as RAID-Z2 in ZFS)
RAID 6 is a method of increasing the data protection of arrays with volume data spread across multiple
disk drives. RAID 6 increases data protection by adding an extra layer of parity over the
RAID 5 implementation. By adding this protection, RAID 6 can restore data from an array with up to two
failed drives. The calculation and storage of extra parity slightly reduces the capacity
and performance compared to a RAID 5 array. RAID 6 is suitable for storage using archive-class disk
(slower) technologies.
RAID 10 overview
RAID 10 provides high availability by combining features of RAID 0 and RAID 1. RAID 0 increases
performance by striping volume data across multiple disk drives. RAID 1 provides disk mirroring, which
duplicates data between two disk drives. By combining the features of RAID 0 and RAID 1, RAID 10
provides a second optimization for fault tolerance.
RAID- Triple Parity (or RAID 7) overview
RAID- Triple Parity primarily incorporates features from RAID level 3 and 4. RAID 7 has integrated cache
and a purpose-built processor for managing the array that helps in achieving faster data read/write
operations. It also has lesser dependency on parity disks because of the specialized controller. RAID
7 provides triple parity.
Triple Mirroring
Triple mirroring by has high speed of RAID-1 and high reliability of RAID-6 at the same time. Triple
mirroring writes data simultaneously to three separate HDDs so if two-thirds of the HDDs fail in the
same RAID group
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data operation can still continue. This RAID type is useful especially for Database
and OLTP which require high performance and availability.

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Reset Button Behavior
Reset button: Press to reset the system settings.
System
Basic system reset
(1 beep)
Advanced system reset
(2 beeps)
All ES models
3 sec
10 sec
Basic system reset (3 sec)
Press the reset button for 3 seconds, a beep sound will be heard. The System administration
password will be reset to default.
Advanced system reset (10 sec)
Press the reset button for 10 seconds; you will hear two beeps at the third and the tenth seconds. The
settings such as the users and user groups previously created will be cleared. The ES NAS will reset all
the system settings to default as it would by using the web-based system reset in “Control Panel” >
“System Settings” > “Backup / Restore” > “Restore to Factory Default” > “Reinitialize NAS”. However,
resetting the ES NAS by holding the button, the data on the ES NAS will not be deleted.
Management port
The management is provided by Intel® 82579 Gigabit Ethernet controller. The management port allows
you to connect to the QES desktop of the ES NAS. The default ES NAS management website is
169.254.100.100:8080. If the ES NAS has been configured to use DHCP, you can use the QNAP Qfinder
Pro to check the IP address of the ES NAS. Make sure the ES NAS and the computer that runs the QNAP
Qfinder Pro are connected to the same subnet. The system requires that the management IP addresses
are configured on both controllers and that the controllers’ management ports are connected to the
management network. This should be a separate LAN or a VLAN because you should not use the
production LAN or VLAN for management network traffic. To configure the management port IP Address,
please refer to the software user manual. In case of the failure of the Storage Controller, you can enable
takeover function from the High Availability app in QES to manage the system through the management
port of the other Storage Controller with the same IP address. For more information, please see the
software user manual.
Service port
Note: The service port is the main point for hardware installation, configuration, and maintenance
activities and it should only be used by QNAP technical support personnel or when you are instructed by
QNAP technical support.