PAC STORAGE PS 2024 User manual

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PAC Storage PS 2000 Series All-Flash
Hardware Manual
A Technical Overview
Version 1.0
Updated: August 2018

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Table of Contents
Safety Precaution ...................................................................................................................... 4
About this Manual ..................................................................................................................... 5
Revision History ........................................................................................................................ 5
Hardware Specifications .......................................................................................................... 6
Package Contents ................................................................................................................... 10
System Package.................................................................................................................... 10
Power Cord, Cable, and Accessory Boxes ............................................................................ 10
Pre-installed Components ..................................................................................................... 11
Rackmount Kit Contents ........................................................................................................ 11
Product Introduction
Overview ............................................................................................................................... 12
Major Components ........................................................................................................ 12
Chassis ................................................................................................................................. 13
Front Panel .................................................................................................................... 13
Rear Panel .................................................................................................................... 14
Internal Backplane ......................................................................................................... 14
Front Panel Components ....................................................................................................... 15
LED and Buttons Panel ................................................................................................. 15
Rear Panel Components ....................................................................................................... 17
Controller Module Interface ........................................................................................... 17
Controller Module Interfaces of the JBOD Models ......................................................... 18
PSU/Cooling Module ..................................................................................................... 19
Super Capacitor and Flash Backup Module (FBM) ........................................................ 20
System Monitoring Features .................................................................................................. 21
Expansion Enclosure Support ....................................................................................... 21
Audible Alarms .............................................................................................................. 22
Hot-Swappable Components ................................................................................................. 22
Hardware Installation
Installation Prerequisites ........................................................................................................ 23
Installation Procedures .......................................................................................................... 24
Unpacking the System ................................................................................................... 24
Installing the Rackmount Kit .......................................................................................... 25
Installing the Hard Drives............................................................................................... 28
Installing the Host Board ............................................................................................... 31
Connections .......................................................................................................................... 33
General Considerations in Connecting Devices ............................................................. 33
Fibre-Host Connections ................................................................................................. 35
SAS-Host Connections .................................................................................................. 42

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Ethernet-Host Connections ............................................................................................ 44
Hybrid-Host Connections ............................................................................................... 50
Expansion Connections ................................................................................................. 51
Management Console Connections ............................................................................... 58
Power Connections ....................................................................................................... 58
Turning the System Off .................................................................................................. 60
System Monitoring
Monitoring Features ............................................................................................................... 61
LEDs ............................................................................................................................. 62
Alarms and I2C Bus ....................................................................................................... 68
System Maintenance
Replaceable Components ..................................................................................................... 69
Replacing the PSU/Cooling Module ............................................................................... 69
Replacing the Controller Module.................................................................................... 70
Replacing the Memory Module ...................................................................................... 72
Replacing the Cache Backup Module (CBM) Components ............................................ 74
Replacing the Host Board .............................................................................................. 77
Replacing the Hard Drive............................................................................................... 79
Appendix
Technical Specification .......................................................................................................... 80
Host Board Interface ...................................................................................................... 80

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Safety Precaution
Read these instructions carefully before you install, operate, or transport the PAC Storage storage
systems and expansion systems.
Energy Hazards Precaution
This equipment is intended to be used in a restricted access location, like a computer room. Only allow
access to SERVICE PERSONS or users who have been instructed about the metal chassis of the
equipment, which may have hazardous energy that service persons must pay attention or take special
protection before touching it. Also, the access is through the use of a key or security identity system. Only
the authorized and well-trained personnel can access the restricted access location.
Installation and Operation
• Install the rack cabinet and the associated equipment at a site where the ambient temperature
(special room cooling equipment may be required) stays lower than 40°C.
• Install the power source socket outlet near the enclosure where it is easily accessible and ground
the rack cabinet.
• Secure airflow clearance inside and around the rack cabinet.
- Secure an 18 to 20 cm clearance on the rear side.
- Do not cover the enclosure openings.
- Route the cables inside the rack cabinet.
- Do not leave drive bays empty as it will affect airflow efficiency.
• Secure each enclosure module using its retention screws.
• Place power cords and other cables away from foot traffic. Do not place items on top of power
cords and ensure they do not rest against data cables.
• Install all modules to the enclosure before turning on the systems.
• Ensure that the correct power range is tested before turning on.
• DO NOT remove the covers or replaceable modules if they are not faulty.
• If the system is used for a long period of time, disconnect it from the power outlet to avoid transient
over-voltage.
• For power source redundancy, ensure that the two PSUs are plugged into two different power
sources (i.e. different circuit breakers).
Service and Maintenance
• Keep the faulty module in place until you have a replacement unit; an empty module greatly
affects the airflow efficiency within the enclosure.
• During service operation, place the enclosure on a soft and clean surface to prevent exterior
damage. Do not place tools or other items on top.
• When transporting the enclosure, repackage all disk drives separately in the original package
foam blocks. Replaceable modules can stay in the enclosure if you are using the original
package; if not, repackage them separately as well.
• Disconnect the power cords before servicing or cleaning the enclosure.

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• Use a slightly moistened paper sheet or cloth for cleaning. Avoid using liquid or sprayed
detergent.
• When replacing components, insert them as gently as possible while assuring full engagement.
Vibration and shock can easily damage hard drives.
• Only qualified service personnel should open the enclosure.
• Contact service personnel if any of the following situations occurs:
- The power cord or plug is damaged.
- The enclosure has been exposed to moisture.
- The system has not been working properly.
- The enclosure was dropped against a hard surface.
- The enclosure shows obvious signs of breakage.
• To move the enclosure, more than one person might be necessary due to its weight.
Drives should be removed from the enclosure beforehand.
Important Notice
The use of PAC Storage certified components is strongly recommended to ensure compatibility, quality,
and normal operation with your PAC Storage products. Contact your distributor for a list of PAC Storage
certified components (e.g. SFP, SFP+, HBA card, iSCSI cable, FC cable, memory module, etc.).
ESD Precautions
• Handle the modules by their retention screws, ejector levers, or the module’s metal
frame/faceplate only. Avoid touching the PCB boards or connector pins.
• Use a grounded wrist strap and an anti-static work pad to discharge static electricity when
installing or operating the enclosure.
• Avoid dust, debris, carpets, plastic, vinyl, and Styrofoam in your work area.
• Do not remove any module or component from its anti-static bag before installation takes
place.
• Drives must not be stacked on top of each other without their protective drive trays. Even when
drives are fixed in the drive trays, contacting the exposed PCB or rear-side interface may damage
the drives.
About this Manual
The manual introduces hardware components of the PAC Storage PS 2000 Series storage system and
expansion enclosures. It also describes how to install, monitor, and maintain them.
For non-serviceable components, contact our support sites.
Firmware operation: Consult the Firmware User Manual on the CD-ROM.
PAC Management Software: Consult the PAC Management Software User Manual on the CD-
ROM.
Revision history
Version
Date
Description
1.0
August 2018
Initial release

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Hardware specifications
Specification Summary
Form factor
2U 24-bay PS 2024
Controller
Dual redundant controllers
Cache memory
- 16 GB DDR4
- 32 GB DDR4
- 64 GB DDR4
- 128 GB DDR4
Note: The installed default memory varies by model, region,
and other factors. Contact your local sales representative for
details.
Host ports
Onboard Gb/s ports:
- 8 x 1 Gb/s iSCSI ports (4 per controller)
More host options:
- 8 x 10 Gb/s iSCSI ports/ RJ-45 (4 per controller)
- 8 x 12 Gb/s SAS ports (4 per controller)
- 8 x 16 Gb/s Fibre Channel ports (4 per controller)*
- 8 x 40 Gb/s iSCSI ports/ QSFP (4 per controller)
- 8 x 56 Gb/s InfiniBand ports (4 per controller) - for
Linux only, block level only
- 16 x 1 Gb/s iSCSI ports (8 per controller)
- 16 x 8 Gb/s Fibre Channel ports (8 per controller)*
- 16 x 10 Gb/s FCoE ports (8 per controller)
- 8 or 16 x 10Gb/s iSCSI ports/ SFP+ (4 or 8 per
controller)
* Supports point-to-point and switch mode
Cache backup technique
Super capacitor + Flash module
Drive connectivity
12 Gb/s SAS connectivity
Maximum number of drives
System: 24
Expansion: 360 and 744 (with expansion board)
Drive advanced features
S.M.A.R.T. support, automatic bad sector
reassignment, dedicated bandwidth to each connected
drive
Supported drives
2.5-inch SAS SSD
2.5-inch SATA SSD
NOTE: Refer to the Compatibility Matrix for the latest
compatibility details.
Supported protocols
File level protocol
- CIFS/SMB
- AFP
- NFS
- FTP
- FXP
-WebDAV
Block level protocol
- FC
- FCoE
Supported protocols
- iSCSI
- InfiniBand
- SAS
Object protocol
- RESTful API

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Specification Summary cont.
EonCloud gateway
Supports integration of the following cloud providers:
- Amazon S3
- Microsoft Azure
- Alibaba AliCloud
- OpenStack
RAID functionality
Global, dedicated, or enclosure hot spare
RAID level supported: 0, 1 (0 + 1), 3, 5, 6, 10, 30, 50,
60
Online expansion:
- Adding new drives
- Copying and replacing drives of larger capacity
RAID migration:
- Configurable stripe size and write policy per system
- Intelligent drive handling
• In degraded mode: skips irreparable blocks to
continue rebuild
• In normal operation: data-block verification and
repair
Data protection and service
Thin provisioning
Local replication*
- Snapshot
- Volume copy/mirror
Remote replication**
- Synchronous or asynchronous for both block level
and file level
* Available with Standard license and optional Advanced
license
**Optional
Availability and reliability
- Redundant, hot-swappable hardware modules
- CacheSafe technology
- Multipathing support (MPIO)
- Device mapper support
Management
- Web-based PAC Management Software
- Automated cache flush and caching mode operation
per enclosure status
- Module status LED indicators: component presence
detection and thermal sensors via I2C bus
- Storage Resource Management to analyze history
records of resource usage
- Automated repeatable management tasks by flexible
workflow
Network configuration
- IPv6 support
- Fixed or dynamic address
- Dual Gigabit Ethernet with Jumbo Frame
- Port trunking, NIC teaming, Link aggregation (IEEE
802.3ad)
- DHCP client
- MPIO, MC/S support

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Specification Summary cont.
Access right management
User account management
Group management
Folder management
- Folder and sub-folder access control
Folder quota
Comprehensive access control action items
- All controls, Read, Read and Run, Modify, List
Support Windows Active Directory Authentication
- Domain Users Login via CIFS/SMB, AFP, FTP, and
file explorer
LDAP on Linux
OS support
- Windows
®
Server 2008/R2
- Windows
®
Server 2012/R2
- Windows® Server 2016*
-
Red Hat® Enterprise Linux®
- SUSE® Linux® Enterprise
- Sun® Solaris™
- MacOS® X
- HP-UX
-
IBM® AIX®
- VMware®**
-
Citrix® XenServer®
* Includes Hyper-V
** NFS protocol running on VMware environment is not
supported currently
Note: Contact your local sales representative for the latest OS
support details.
Service and support
Standard services:
- 3-year limited hardware/software warranty
- 8 x 5 phone, web, and email support
Upgraded/extended services*:
- Replacement of part dispatch on the next business
day (up to 5 years)
- Advanced service of 24/7 phone, web, email support,
and on-site diagnostics on the next business day
- Premium service of 24/7 phone, web, email support,
and on-site diagnostics in 4 hours
* Optional
Note: The upgraded/extended services are optional and vary
by region.
Power
Power supply: 2 x Redundant/hot-swappable 460 W
AC voltage: 100 VAC (8A) - 240 VAC (4A) with PFC
(auto-switching)
Frequency: 50 - 60 Hz
Environment
Temperature:
- Operating: 0°C - 40°C without BBU/CBM, 0°C - 35°C
with BBU/CBM
- Non-operating: -40°C - 60°C
Altitude:
- Sea level to 3048 m (10,000 ft.) operating/sea level
to 12,192 m (40,000 ft.) non-operating
- Relative humidity: 5% - 95% non-condensing,
operating and non-operating

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Specification Summary cont.
Green design
80 PLUS-certified power supplies delivering more than
80% energy efficiency
Intelligent multi-level drive spin-down
Notification
Various event notification methods including email and
SNMP trap.
Regulations
Safety: UL, BSMI, CB
Electromagnetic compatibility: CE, BSMI, FCC
Weight
17.85 kg/39.35 lbs (with SSDs)
Dimension
448 mm x 88 mm x 500 mm
Notes:
• The dimensions do not include chassis ears/protrusions.
• The dimension order is W x H x D.
Package dimension
780 mm x 340 mm x 580 mm

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Package Contents
Check the unpacking list for the complete list of contents and exact quantity of the components
of your system.
NOTE: The contents and quantity may vary depending on the system model and order requests.
System Package
Enclosure Chassis Rackmount Kit
Power cord, cable, and accessory boxes
Power cord, cable, and accessory boxes
Unpacking list and China RoHS
compliance documentation
Mounting Enclosure
Screws and Nuts

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Pre-installed Components
Rackmount Kit Contents
NOTE: See section Installing the Rackmount Kit for the types of mounting kit and the exact
package contents.

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Product Introduction
This chapter introduces the look and feel of the PS 2000 All-Flash Series system, the features,
and the supported components.
Overview
This manual introduces the PS 2000 All-Flash Series system that supports 3 Gbps, and 12
Gbps SAS and Near-line SAS, and SATA SSDs. This system is designed to utilize 2.5” SSDs.
Drive capacity can be expanded by attaching expansion hard drive enclosures.
PS 2024
Major Components
NOTE: Upon receiving the system, check the package contents and compare them to the
Unpacking List. If one or more of the modules are missing, please contact your system vendor.
Controller and Interface
The system has controllers, and each controller comes with pre-installed DIMM modules. It also
has a CBM (cache backup module), a module that has a super capacitor and an FBM (flash
backup module). With the CBM, the cached data is quickly distributed to the FBM to save the
data permanently with the support of the super capacitor if power outage occurs. With the super
capacitor’s fast-charging feature, it can distribute a fair supply of power to the controller, so the
controller can save cache data to the FBM immediately and permanently.
Also, the embedded firmware features earth-friendly and smart algorithms that you can use to
customize your system’s hardware settings such as power-saving modes, variable fan speeds,
and exiled drive handling.
Expansion Controller and Interface
The expansion enclosure is managed by expander controllers that distribute data flow to
individual disk drives and report operating status through a proprietary enclosure service via in-
band protocols. The enclosure, along with other expansion systems, connects to a SAN system
and serves as a building block of a scalable configuration.
For supported protocols, the firmware supports communications with enclosure devices,
SAS/SATA disk drives, and SAN system that features SAS expansion ports.
For physical connection, the SAS interface provides easy cabling routes via mini-SAS
connectors. With the backplane-adapting SAS or SATA drives, the system can support
enterprise-class SAS, Near-line SAS, and cost-effective SATA-II or SATA-III SSDs. This
connection is ideal for adding large capacity storages to a storage pool.

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Power Supply Unit/Cooling Module
There are two PSU/cooling modules in the system. Each PSU/cooling module is hot-swappable
and is built with a cooling fan to protect the system from overheating while providing constant
power. The modular architecture of the system and easy accessibility to all major components
provide you an easy maintenance.
Chassis
This section describes the front and rear panels of the PS 2000 Series’ rugged storage chassis.
The chassis are designed to allow installation to the rack or a cabinet.
Front Panel
PS 2024
Number
Part
Description
Drive trays
Each drive tray is hot-swappable and holds a 2.5-inch SAS and SATA
hard drives.
LED panel
LED panel has service, power, cooling fan, thermal, and system LEDs.
Mute button/
Service LED
This button mutes the alarm while the embedded Service LED notifies
you that the system requires service.
Rackmount
holes
These holes secure the enclosure to the rackmount system with the
mounting screws.
Handles
These handles allow you to push/pull the enclosure to/from the cabinet
installed in the rackmount system.

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Rear Panel
Single Controller System
Dual Controller System
Number
Part
Description
Controller A
This controller module contains the SAS expansion board which
distributes I/O functions to and from the managing RAID system.
This also handles the status of the components via the SAS links
with the RAID system.
Controller B or
dummy cage
This part contains the second controller, also called the redundant
controller. This controller takes over the system functions when
Controller A fails to process.
For single-controller system, this contains a dummy cage.
PSU/Cooling
module
These hot-swappable PSU/cooling modules provide power to the
storage system and ventilates the system.
Power button
This button allows you to turn ON/OFF your storage system.
WARNING!
• DO NOT remove the redundant components without a replacement on hand.
Internal Backplane
The internal backplane is a circuit board that separates the front and rear parts of the chassis.
This provides logic level signals and low voltage power paths. The thermal sensors and I2C
devices are embedded to detect system temperatures and PSU/cooling module’s operating
status. This board is comprised of non-user serviceable components.
WARNING!
• Accessing the backplane board may lead to serious damage to the system.
• Physical contact with the backplane board may cause electrocution.

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Front Panel Components
This section describes the front panel components of the PS 2000 system.
LED and Buttons Panel
The LEDs on this panel allow you to know your system’s current status when turned on, while
the buttons have specific functions that you can set.
Number
Part
Description
Service LED
This LED provides the status when the system requires service or
currently in service.
Power LED
This LED provides the status of the system’s power.
Cooling fan
status LED
This LED provides the cooling fan’s status.
Temperature
status LED
This LED provides the system’s temperature status.
System fault
LED
This LED provides the system’s operation status.
Mute button/
Service LED
This button mutes the alarm while the embedded Service LED
notifies you that the system requires service.
NOTE: For more details regarding the LEDs and their respective status, refer to LEDs.
WARNING! If critical faults are indicated on the LED panel, verify the cause of the problem as
soon as possible and contact your system vendor for a module replacement.

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Drive Tray Bezel
The drive tray bezel is designed to accommodate both SAS and SATA-interfaced hard disk
drives. Get familiarized of the components of your system’s drive tray bezel.
Number
Part
Description
Release button
Push this button to unlock the drive tray from the drive tray slot.
Drive busy LED
This LED provides the status of the hard disk drive.
Power status
LED
This LED provides the power status of the hard disk drive.
WARNING! Be careful not to drop or put heavy objects on the drive tray, as these may cause it to
bend or deform the drive tray’s structure. If the drive tray is deformed, it may not fit into the
system’s drive bay.

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Rear Panel Components
This section describes the rear panel components of the PS 2000 Series systems.
Controller Module Interface
The I/O interfaces of the controller module allow you to connect to other devices and the LEDs
allow you to know the status of your controller.
Number
Part
CBM (Cache Backup Module)
Host ports
Controller status LEDs
SAS expansion ports
USB service port
Mini USB port (console)
Ethernet management port
Restore Default button
Restore Default LED
WARNING! The controller module is built of sensitive and non-replaceable components. When
replacing the controller module, you can only remove it from the enclosure when you already
have the replacement. Unnecessary tampering may damage the controller.
IMPORTANT! The host boards are add-on components. When installing a host board for the first
time, insert it on the left slot (HB1).
NOTES:
• The Ethernet management port only supports 100Mb and 1Gb speeds.
• For more information about the super capacitor and flash backup module, see section
Super Capacitor and Flash Backup Module.

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Controller Module Interfaces of the JBOD Models
The controller module of a JBOD system contains a circuit board within a metal canister,
integrated with the hot-swap docking connectors at the backend. Two SAS wide ports on the
interface faceplate connect to a managing PS system or other expansion systems.
Number
Part
Extraction levers/screw holes
SAS expansion port status LEDs
SAS expansion ports
Controller status LED
Mini USB service port
WARNING! You can only remove the controller when you already have the replacement. The PS
controller is built of sensitive components. Unnecessary tampering may damage the controller.

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PSU/Cooling Module
The PS 2000 Series system has two redundant hot-swappable PSU/cooling modules that
provide power and help with the airflow, providing an efficient ventilation.
Number
Part
Extraction lever
Retention screw
Power socket
Power switch
PSU status LED
Fan
When the cooling modules operate under normal conditions, the cooling fans run at a low
speed. The cooling fans raise their rotation speed to increase the airflow under the following
conditions:
• Component failure: If the cooling module, PSU, or temperature failed.
• Elevated temperature: If the temperature breaches the upper threshold set for any of the
interior temperature sensors.
During the initialization stage, the cooling fans operate at a high speed. The speed is lowered
when the initialization is complete and no errors are detected.
NOTES:
• The PSU/Cooling Modules have specific installation orientations for left and right slots.
Refer to the label on the back of the system.
• There are two upper temperature thresholds: one for event notification and the other for
triggering high fan rotation speed. You can change the preset values for event notification
using the firmware – embedded configuration utility. Refer to the firmware operation
manual for details.

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WARNING!
• If any of the LEDs lights up in red, contact your local vendor to request a replacement
immediately.
• When removing the PSU/Cooling Module, pull the module for about 3 inches then wait for
at least 10 seconds before removing the whole module from the enclosure.
• DO NOT run the system with faulty PSU/Cooling Module(s) as it may cause disruption of
the airflow resulting in overheating.
CAUTION! Keep your body away from the moving parts of the system.
Super Capacitor and Flash Backup Module (FBM)
The PS 2000 Series system also has a Cache Backup Module (CBM), which is comprised of a
super capacitor and Flash Backup Module (FBM), installed in the controller. The super capacitor
stores cached data to the flash backup module permanently in case of power interruption or
outage.
NOTE: The super capacitor is partially charged when shipped. When you turn the system ON, the
super capacitor will charge to its full capacity for a few minutes. If it is not charging, there may be
a problem. Contact your system vendor immediately. You can also check the status of the super
capacitor via the PAC Management Software or the firmware. Refer to the manuals for more
details.