SEAGATE XP480SE30001 Nytro 4350 NVMe SSD User Guide
- June 15, 2024
- Seagate
Table of Contents
Seagate® Nytro® 4350 NVMe SSD
Product Manual
XP480SE30001 Nytro 4350 NVMe SSD
User Capacity
480 GB
960 GB
1920 GB| Model Number
XP480SE30001
XP960SE30001
XP1920SE30001
---|---
© 2023, Seagate Technology LLC All rights reserved. Publication number:
205237900, Rev A, November 2023.
Seagate Technology reserves the right to make changes to the product(s) or
information disclosed herein at any time without notice. No part of this
publication may be reproduced in any form without written permission of
Seagate Technology LLC. Call 877-PUB-
TEK1(877-782-8351) to request
permission.
Seagate, Seagate Technology and the Spiral logo are registered trademarks of
Seagate Technology LLC in the United States and/or other countries. Nytro, and
Sea Tools are either trademarks or registered trademarks of Seagate Technology
LLC or one of its affiliated companies in the United States and/or other
countries. All other trademarks or registered trademarks are the property of
their respective owners.
The NVMe word mark and/or NVM Express design mark are trademarks of NVM
Express, Inc. The PCIe word mark and/or PCI Express design mark are registered
trademarks and/or service marks of PCI-SIG.
When referring to drive capacity, one gigabyte, or GB, equals one billion
bytes and one terabyte, or TB, equals one trillion bytes. Your computer’s
operating system may use a different standard of measurement and report a
lower capacity. In addition, some of the listed capacity is used for
formatting and other functions, and thus will not be available for data
storage. Actual quantities will vary based on various factors, including file
size, file format, features and application software. Actual data rates may
vary depending on operating environment and other factors. The export or re-
export of hardware or software containing encryption may be regulated by the
U.S. Department of Commerce, Bureau of Industry and Security (for more
information, visit www.bis.doc.gov), and controlled for import and use outside
of the U.S.
Seagate Technology Support Services
For Internal SSD Support, visit: https://www.seagate.com/support/products/
For Firmware Download and Tools Download for Secure Erase, visit:
https://www.seagate.com/support/downloads/
For information regarding online support and services, visit:
http://www.seagate.com/contacts/
For information regarding Warranty Support, visit:
http://www.seagate.com/support/warranty-and-replacements/
For information regarding data recovery services, visit:
http://www.seagate.com/services-software/seagate-recovery-services/recover/
For Seagate OEM and Distribution partner and Seagate reseller portal, visit:
http://www.seagate.com/partners
Introduction
The Seagate® Nytro® 4350 SSD is a fast, dependable storage solution for boot applications or read-intensive workloads in data centers. The Seagate Nytro 4350 SSD offers PCIe Gen 4 x 4 interface with NVMe™ protocol support in a small M.2 form factor.
Table 1 The Nytro 4350 SSD Features
Feature | Description |
---|---|
Capacity (User) | 480 GB, 960 GB, 1920 GB |
Certifications, Eco-Compliance | CE, UL, FCC, BSMI, KCC, Microsoft |
WHQL, VCCI, CB RoHS
Dimensions| M.2 2280: 80 mm (± 0.15) x 22 mm (± 0.15) x 4 mm (± 0.08)
Endurance| Drive Writes Per Day (DWPD)| Endurance rating valid for SSD
Life Remaining > 1% (SMART E7h>1).
See Section 2.8, Reliability and Endurance.
Form Factor| M.2 2280
Interface Compliance| NVMe 1.4
PCI Express Base 4.0
PCIe Gen 4 x 4 lane & backward compatible to PCIe Gen 3, Gen 2, and Gen 1 8 IO
queues supported (1 admin queue and 8 IO queue). Each IO queue support 256
entries.
NAND| eTLC
Operating Systems| Windows® 11 Pro (64 bit), Windows Server 2019,
2022 (64 bit)
Ubuntu 20.04
CentOS 8
Performance Random| Read: Up to 800,000 IOPS
Write: Up to 58,000 IOPS| Actual performance might vary depending on use
conditions and environment. See Section 2.2, Performance.
Performance Sequential| Read: Up to 5500MB/s
Write: Up to 2000MB/s| Actual performance might vary depending on the
capacity, use conditions and environment. See Section 2.2, Performance.
Power Consumption| Active mode: < 11.5W
Idle mode: < 3.3W| Results vary with capacity and mode. See Section 2.6,
Power Consumption.
Power Management| Supports Active State Power Management (ASPM)
Power Loss Data Protection| In-process writes to the NAND are
completed in the event of an unexpected power loss
Reliability| End-to-end data path protection
MTBF: 2 million hours
UBER: 1 error in 1017 bits read
Security| TCG Pyrite 2.0
Feature| Description
---|---
Shock and Vibration| Shock
Non-Operating: 1,500 G, at 0.5 ms| See Section 2.7,
Environmental Conditions .
Vibration
Non-Operating: 1.52 GRMS, (20 to 800 Hz, Frequency)
Temperature Range (Operating)| 0°C to 70°C
Temperature Sensor (SMART Attribute ID C2h)
Voltage| Min = 3.14V
Max = 3.47V
Warranty| Five years, or when the device reaches Host TBW, whichever
happens first. Endurance rating valid for SSD Life Remaining > 1% (SMART
E7h>1).
Weight| n 9.7 to 10.5g
Specifications
2.1 Models and Capacity
Table 2 Models and Capacity
Capacity | Model | User Addressable Sectors |
---|---|---|
480 GB | XP480SE30001 | 937,703,088 |
960 GB | XP960SE30001 | 1,875,385,008 |
1920 GB | XP1920SE30001 | 3,750,748,848 |
NOTE
About capacity:
- Sector Size: 512 Bytes
- User-addressable LBA count = (97696368) + (1953504 x (Desired Capacity in Gb-50.0)). From International Disk Drive Equipment and Materials Association (IDEMA) (LBA1-03_standard.doc)
2.2 Performance
Table 3 Random and Sequential Read and Write Performance
Parameter | 480 GB | 960 GB | 1920 GB |
---|---|---|---|
128KB Sequential Read (MB/s) | 5500 | 5500 | 5500 |
128KB Sequential Write (MB/s) | 700 | 1400 | 2000 |
4KB Random Read (IOPS) | 400,000 | 600,000 | 800,000 |
4KB Random Write (IOPS) | 17,000 | 34,000 | 58,000 |
8KB Random Read (IOPS) | 230,000 | 330,000 | 460,000 |
8KB Random Write (IOPS) | 9,000 | 18,000 | 30,000 |
NOTE
About performance:
- Performance can vary based on the SSD’s firmware version, system hardware, and configuration.
- Performance is measured with the following conditions
(a) Sustained Sequential: FIO, full-range, QD=32
(b) Sustained Random: FIO, full-range, QD=32, 8 workers
2.3 Latency
Table 4 QD1 4KB Random Average Latency
Capacity | Read (4KB) | Write (4KB) |
---|---|---|
480 GB | 75 | 40 |
960 GB | 75 | 30 |
1920 GB | 75 | 30 |
NOTE
About latency:
- Performance can differ according to flash configuration and platform.
- Units are in microseconds.
2.4 Quality of Service (QoS)
Table 5 Quality of Service (QoS)
Capacity | QoS (99%) |
---|---|
Read (4KB QD=1) | Write (4KB QD=1) |
QD=32)** | Write (4KB QD=32) |
Unit: µs
480 GB| 100| 60| 350| 1600
960 GB| 100| 50| 300| 970
1920 GB| 100| 50| 250| 850
Capacity| QoS (99.99%)
---|---
Read (4KB QD=1)| Write (4KB QD=1)| Read (4KB
QD=32)| Write (4KB QD=32)
Unit: µs
480 GB| 130| 130| 550| 1500
960 GB| 130| 130| 550| 1300
1920 GB| 130| 130| 450| 1100
NOTE
About QoS:
-
QoS is measured with the following conditions
FIO test: 4KB transfer size, QD=1 or 32 on 4KB random read and write workload on whole LBA range of SSD performance on steady state and all background operations run normally. -
According to random 4KB QD=1 and 32 workloads, the result of QoS is the maximum round-trip time which is taken for 99.0% and 99.99% of commands to host.
-
QoS can vary based on SSD’s firmware version, system hardware and configuration.
2.5 Supply Voltage
Table 6 Supply Voltage
Parameter | Rating |
---|---|
Operating Voltage | Min = 3.14V |
Max = 3.47V
Rise Time (Max/Min)| 100 ms / 0.1 ms
Fall Time (Max/Min)| 1 s / 10 ms
Minimum Off Time| 1 s
NOTE
Minimum Off Time is the time between power being removed from the SSD (Vcc
<100 mW) and power being reapplied to the SSD.
2.6 Power Consumption
Table 7 Power Consumption
| 480 GB| 960 GB| 1920 GB
---|---|---|---
Active Read (RMS, Max)| 9.4W| 6.3W| 3.3W
Active Write (RMS, Max)| 10.4W| 8.1W| 3.3W
Idle| 11.55W| 10.7W| 3.3W
NOTE
About power consumption:
- The measured power voltage is 3.3 V.
- Power consumption is measured during the sequential/random read and write performed by FIO on Linux.
- Power Consumption can vary based on SSD’s firmware version, system hardware and configuration.
2.7 Environmental Conditions
Table 8 Temperature, Humidity, Shock
Specification | Value |
---|
Temperature
Operational temperature (with airflow: 800 LFM at 35°C ) Non-operating| 0°C to
70°C
-40°C to 85°C
Humidity
Operating
Non-operating (storage)| 90%
93%
Shock
Non-operating| 1,500 G, duration 0.5 ms
Vibration
Non-operating| 1.52 GRMS, (20Hz to 80Hz, Frequency)
Temperature is measured without condensation.
Operating mode temperature is measured by temperature sensor, SMART Attribute
C2h.
Airflow is suggested. Airflow allows the device to be operated at the
appropriate temperature for each component during heavy workloads
environments.
NOTE
Shock and vibration results assume that the SSD is mounted securely with the
input vibration applied to the SSD mounting. These specifications do not cover
connection issues that may result from testing at this level. The measured
specification is in root mean square (RMS) form.
- Non-operating shock. The limits of non-operating shock applies to all conditions of handling and transportation. This includes both isolated SSD and integrated SSDs. Shock may be applied in the X-, Y-, or Z-axis.
- Non-operating vibration. The limits of non-operating vibration shall apply to all conditions of handling and transportation. This includes both isolated SSD and integrated SSDs. Vibration may be applied in the X-, Y-, or Z-axis.
2.8 Reliability and Endurance
Table 9 Reliability and Endurance
Specification | Value |
---|---|
Mean time between failures (MTBF) | 2 million hours |
Bit Error Rate | 1 error in 1017 bits read |
Endurance | 480GB: 936TB |
960GB: 1890TB
1920GB: 3800TB
NOTE
About endurance:
- The SSD achieves the specified MTBF in an operational environment that complies with the operational temperature range specified in this manual. Operating temperatures are measured by temperature sensor, SMART Attribute ID C2h.
- Endurance rating valid for SSD Life Remaining > 1% (SMART E7h>1).
- Endurance is characterized while running JEDEC enterprise workload (JESD219).
Mechanical Information
3.1 Dimensions and Weight
Table 10 Dimensions and Weight
Capacity | Weight | Length | Width | Height |
---|---|---|---|---|
480GB | 9.7g | 80 mm ± 0.15mm | 22 mm ± 0.15mm | 4 mm ± 0.08mm |
Component top, max: 1.6mm
Component bottom, max: 1.6mm
960GB| 10.3g
1920GB| 10.5g
Pin and Signal Descriptions
Table 11 Pin Descriptions
Pin No | PCIe Pin | Description |
---|---|---|
1 | GND | CONFIG_3=GND |
2 | 3.3V | 3.3V source |
3 | GND | Ground |
4 | 3.3V | 3.3V source |
5 | PETn3 | PCIe TX Differential signal defined by the PCI Express M.2 spec |
6 | N/C | No connect |
7 | PETp3 | PCIe TX Differential signal defined by the PCI Express M.2 spec |
8 | N/C | No connect |
9 | GND | Ground |
10 | LED1# | Open drain, active low signal. These signals are used to allow the |
add- in card to provide status indicators via LED devices that will be
provided by the system.
11| PERn3| PCIe RX Differential signal defined by the PCI Express M.2 spec
12| 3.3V| 3.3V source
13| PERp3| PCIe RX Differential signal defined by the PCI Express M.2 spec
14| 3.3V| 3.3V source
15| GND| Ground
16| 3.3V| 3.3V source
17| PETn2| PCIe TX Differential signal defined by the PCI Express M.2 spec
18| 3.3V| 3.3V source
19| PETp2| PCIe TX Differential signal defined by the PCI Express M.2 spec
20| N/C| No connect
21| GND| Ground
22| N/C| No connect
23| PERn2| PCIe RX Differential signal defined by the PCI Express M.2 spec
24| N/C| No connect
25| PERp2| PCIe RX Differential signal defined by the PCI Express M.2 spec
26| N/C| No connect
27| GND| Ground
28| N/C| No connect
29| PETn1| PCIe TX Differential signal defined by the PCI Express M.2 spec
30| N/C| No connect
31| PETp1| PCIe TX Differential signal defined by the PCI Express M.2 spec
32| N/C| No connect
Pin No| PCIe Pin| Description
---|---|---
33| GND| Ground
34| N/C| No connect
35| PERn1| PCIe RX Differential signal defined by the PCI Express M.2 spec.
36| N/C| No connect
37| PERp1| PCIe RX Differential signal defined by the PCI Express M.2 spec.
38| N/C| No connect
39| GND| Ground
40| SMB_CLK (I/O)(0/1.8V)| SM Bus Clock; Open Drain with pull-up on platform.
41| PETn0| PCIe TX Differential signal defined by the PCI Express M.2 spec.
42| SMB_DATA (I/O)(0/1.8V)| SM Bus Data; Open Drain with pull-up on platform.
43| PETp0| PCIe TX Differential signal defined by the PCI Express M.2 spec.
44| ALERT#(O) (0/1.8V)| Alert notification to master; Open Drain with pull-up
on platform; Active low.
45| GND| Ground
46| N/C| No connect
47| PERn0| PCIe RX Differential signal defined by the PCI Express M.2 spec.
48| N/C| No connect
49| PERp0| PCIe RX Differential signal defined by the PCI Express M.2 spec.
50| PERST#(I)(0/3.
3V)
| PE-Reset is a functional reset to the card as defined by the PCIe Mini CEM
specification.
51| GND| Ground
52| CLKREQ#(I/O) (0/3.3V)| Clock Request is a reference clock request signal
as defined by the PCIe Mini CEM specification; Also used by L1 PM Sub-states.
53| REFCLKn| PCIe Reference Clock signals (100 MHz) defined by the PCI Express
M.2 spec.
54| PEWAKE#(I/O) (0/3.3V)| PCIe PME Wake.
Open Drain with pull up on platform; Active Low.
55| REF CLKp| PCIe Reference Clock signals (100 MHz) defined by the PCI
Express M.2 spec.
56| Reserved for MFG DATA| Manufacturing Data line. Used for SSD manufacturing
only. Not used in normal operation. platform Socket.
57| GND| Ground
58| Reserved for MFG CLOCK| Manufacturing Clock line. Used for SSD
manufacturing only. Not used in normal operation.
Pins should be left N/C in platform Socket.
Pin No| PCIe Pin| Description
---|---|---
59| Module Key M| Module Key
60| Module Key M
61| Module Key M
62| Module Key M
63| Module Key M
64| Module Key M
65| Module Key M
66| Module Key M
67| N/C| No connect
68| SUSCLK(32KH z) (I)(0/3.3V)| 32.768 kHz clock supply input that is provided
by the platform chipset to reduce power and cost for the module.
69| N/C| PEDET (NC-PCIe)
70| 3.3V| 3.3V source
71| GND| Ground
72| 3.3V| 3.3V source
73| GND| Ground
74| 3.3V| 3.3V source
75| GNDZD| Ground
SMART Support
The Nytro 4350 SSD supports the SMART command set.
5.1 SMART IDs
The following table lists SMART IDs and Descriptions.
Table 12 SMART Attributes (Log Identifier 02h)
Bytes Index | Bytes | Description |
---|---|---|
[0] | 1 | Critical Warning |
[2:1] | 2 | Composite Temperature |
[3] | 1 | Available Spare |
[4] | 1 | Available Spare Threshold |
[5] | 1 | Percentage Used |
[31:6] | 26 | Reserved |
[47:32] | 16 | Data Units Read |
[63:48] | 16 | Data Units Written |
[79:64] | 16 | Host Read Commands |
[95:80] | 16 | Host Write Commands |
[111:96] | 16 | Controller Busy Time |
[127:112] | 16 | Power Cycles |
[143:128] | 16 | Power On Hours |
[159:144] | 16 | Unsafe Shutdowns |
[175:160] | 16 | Media and Data Integrity Errors |
[191:176] | 16 | Number of Error Information Log Entries |
[195:192] | 4 | Warning Composite Temperature Time |
[199:196] | 4 | Critical Composite Temperature Time |
[201:200] | 2 | Temperature Sensor 1 (Current Temperature) |
[203:202] | 2 | Temperature Sensor 2 (N/A) |
[205:204] | 2 | Temperature Sensor 3 (N/A) |
[207:206] | 2 | Temperature Sensor 4 (N/A) |
[209:208] | 2 | Temperature Sensor 5 (N/A) |
[211:210] | 2 | Temperature Sensor 6 (N/A) |
[213:212] | 2 | Temperature Sensor 7 (N/A) |
[215:214] | 2 | Temperature Sensor 8 (N/A) |
[511:216] | 296 | Reserved |
NOTE
(Optional) Contextual information for Log Identifier 02h:
-
Critical Warning [Byte 0]. This field indicates critical warnings for the state of the controller.
Bit#0: Available spare is below threshold
Bit#1: Temperature exceeded threshold or below an under temperature threshold
Bit#2: Reliability is degraded due to excessive media or internal errors
Bit#3: Media is placed in read only mode
BIt#4: Volatile memory backup device has failed
Bit#5 – Bit#7: Reserved -
Available Spare [Byte 3]. This value (percentage) = 100* [(total reserved VB – consumed VB caused by early, later bad)/ total reserved VB]
-
Percentage Used [Byte 5]. This value (percentage) = 100* (total VB erase count/ PE cycle for total VB).
Feature Details
6.1 Flash Management
6.1.1 Error Correction Code (ECC)
Flash memory cells deteriorate with use. This can generate random bit errors
in the stored data. The Nytro 4350 SSD applies the LDPC ECC algorithm to
detect and correct errors occur during read process, to make sure the SSD
reads correctly, and to protect data from corruption.
6.1.2 Wear Leveling
NAND flash devices can undergo only a limited number of program/erase cycles.
Commonly, the SSD does not use areas of the flash media evenly. If the SSD
updates some areas more frequently than others, this reduces the lifetime of
the device. Wear Leveling extends the life of the NAND Flash by evenly
distributing write and erase cycles across the media.
Seagate’s advanced Wear Leveling algorithm spreads the flash usage throughout
the whole flash media area.
Implementing dynamic and static Wear Leveling algorithms improves the life
expectancy of the NAND flash.
6.1.3 Bad Block Management
Bad blocks do not function properly and they can contain more invalid bits.
This can make stored data unstable and bad block reliability is not
guaranteed. Blocks identified and marked as bad by the manufacturer are called
“Early Bad Blocks”. Bad blocks that develop during the lifespan of the Flash
are called “Later Bad Blocks”. Seagate’s bad block management algorithm
detects the factory-produced bad blocks and manages bad blocks that appear
with use. This practice prevents the drive from storing data in bad blocks and
improves data reliability
6.1.4 TRIM
The TRIM feature improves the read/write performance and speed of SSDs. SSDs
cannot overwrite existing data, so the available space becomes smaller with
each data block use. The TRIM command runs within the operating system to tell
the SSD which data blocks can be removed permanently because they are no
longer in use. The SSD erases these unused data blocks.
6.1.5 SMART
SMART, stands for Self-Monitoring, Analysis, and Reporting Technology. SMART
is an open standard that allows an SSD to automatically detect its health and
report potential failures. When SMART records a failure, users can replace the
SSD to prevent unexpected outage or data loss. SMART can also inform users of
impending failures while there is still time to copy data to another device.
6.1.6 Over Provisioning
Over Provisioning (OP) preserves an additional area beyond user capacity in an
SSD, which is not visible to users and cannot be used by them. OP improves
performance and IOPS (Input/Output Operations per Second) by providing the
controller additional space to manage P/E cycles. OP enhances the reliability
and endurance as well. Moreover, the write amplification of the SSD becomes
lower when the controller writes data to the flash.
6.1.7 Firmware Upgrade
Firmware provides a set of instructions on how the device communicates with
the host. Firmware upgrades are typically available with added features, fixed
compatibility issues, and improved read/write performance.
6.1.8 Thermal Throttling
Thermal throttling prevents components in an SSD from over-heating during read
and write operations. The Nytro 4350 SSD design provides an on-die and on-
board thermal sensor. With this accuracy, firmware can apply different levels
of throttling to protect efficiently and proactively through the SMART
reading.
Table 13 Current version: Thermal Throttling 2.0
Item | Content |
---|---|
Smart reporting temperature | Flash normalized case temperature |
Reference of temp. reading | On-board thermal sensor, Controller on-die thermal |
sensor
tmt1 threshold| 76°C per Smart reported
tmt2 threshold| 79°C per Smart reported
Protect controller threshold| 115°C from on-die thermal sensor
Fatal threshold| 120°C from on-die thermal sensor
Resume performance threshold| 72°C per Smart reported
Temperature polling frequency| Every 1 sec
TMT1_state impact| ±10% CE
TMT2_state impact| -20% CE
6.1.9 Multiple Namespaces
An NVMe namespace is a quantity of non-volatile memory (NVM) that can be
formatted into logical blocks.
Namespaces are used when a storage virtual machine is configured with the NVMe
protocol. Nytro 4350 SSD supports up to 16 namespaces for greater deployment
flexibility.
6.1.10 Garbage Collection
Garbage collection allocates and releases memory to accelerate the read/write
processing and improve performance.
When there is less available space, the SSD slows down the read/write
processing and implements garbage collection to release memory.
6.2 Advanced Device Security Features
6.2.1 Secure Erase
Secure Erase is a standard NVMe format command and it writes all of “0x00” to
fully wipe all the data on hard drives and SSDs. When this command issues, the
SSD controller erases its storage blocks and returns to its factory default
settings.
6.2.2 Physical Presence SID
TCG defines Physical Presence SID (PSID) as a 32-character string. PSID
reverses the SSD to its manufacturing setting when the SSD is set through TCG
Pyrite (non-SED). The PSID code is printed on the SSD label. PSID erases all
data when reverting the SSD to manufacturing settings.
6.2.3 Sanitize
The Sanitize feature uses the Format NVM command to provide an alternative to
the existing secure erase capabilities.
This feature provides robust data security by making sure the user data from
the SSD media, caches, and the Controller Memory Buffer are erased by the
block erase operations, overwriting or destroying the encryption key. The
following table shows the types of Sanitize Operations supported.
Table 14 Sanitize Operations
SSD Security Type | Sanitize Operation | TCG Commands |
---|---|---|
Overwrite | Block Erase | Crypto Erase |
Process | Instant Security Erase | |
Non-SED (TCG Pyrite) | Yes | Yes |
NOTE
Sanitize Overwrite command erases all data on the disk beyond all feasible
effort to recover. Completion takes at least one hour per terabyte per pass.
The number of passes is drive-selectable. The NVMe spec default is 16 passes.
Contact Seagate Support for more detailed information.
6.3 SSD Lifetime Management
Drive Writes per Day (DWPD) The Total Bytes Written (TBW) specification of an
SSD calculates how many times you can write the user capacity of an SSD per
day over the warranty period (or a different number of years), based on the
JEDEC workload used to specify the TBW.
DWPD = (TBW of an SSD x 1024) / (Warranty days x SSD size in GB)
TBW measures the lifespan of the SSD. This measurement represents the amount
of data written to the device. To calculate the TBW of an SSD, use the
following equation:
TBW = [(NAND Endurance) x (SSD Capacity)] / [WAF] NAND Endurance: NAND
endurance refers to the P/E (Program/Erase) cycle of a NAND flash.
SSD Capacity: The SSD capacity is the specific capacity in total of an SSD.
WAF: Write Amplification Factor (WAF) is a numerical value. This value
represents the ratio between the amount of data that an SSD controller needs
to write and the amount of data that the host’s flash controller writes. A
WAF, near 1, guarantees better endurance and lower frequency of data written
to flash memory.
TBW in this document is based on the JEDEC 218/219 workload.
6.3.1 Media Wear Indicator
The SMART attribute byte index [5], Percentage Used, reports the Actual Life
Indicator. Replace the SSD when this number reaches 100%.
6.3.2 Read Only Mode (End of Life)
When program/erase cycles age the SSD, media wear-out can cause increasing
numbers of bad blocks. When the number of usable good blocks is less than the
threshold (5%, SMART attribute log ID 02h Byte4), the SSD notifies the host
through an AER event and Critical Warning to enter Read Only Mode to prevent
further data corruption. When this happens, replace the SSD immediately.
6.4 Adaptive Approach to Performance Tuning
6.4.1 Predict and Fetch
When the Host tries to read data from the SSD, the SSD performs only one read
action after receiving one command.
However, the Nytro 4350 SSD applies Predict and Fetch to improve the read
speed. When the host issues sequential read commands to the SSD, the SSD
expects that the following are also read commands. Therefore, before receiving
the next command, flash has prepared the data. This accelerates data
processing time, and the host needs less wait time to receive data.
6.4.2 Throughput
Based on the available space of the SSD, the Nytro 4350 SSD regulates the
read/write speed and manages the performance of throughput. When the SSD has
more space, the firmware continuously performs read/write actions.
When the SSD has less available space, it slows down the read/write processing
and implements garbage collection to release memory.
Safety Certifications, and Compliance
You can find up to date information on safety certifications, and component
compliance requirements for Seagate devices on the Seagate Support page, here:
https://www.seagate.com/support/
For a direct link to the Seagate HDD and SSD Regulatory Compliance and Safety
document, go here: https://www.seagate.com/files/www-content/forms/compliance
/regulatory-compliance-and-safety-100838899-A.pdf
7.1 Regulatory Model Numbers
The following regulatory model number represents all Seagate Nytro 4350 SSD:
- STA039
Installation Precautions
8.1 Handling Precautions
There are a lot of components assembled on a single SSD device. Please handle
the drive with care especially when it has any WLCSP (Wafer Level Chip Scale
Packaging) components such as PMIC, thermal sensor or load switch. WLCSP is
one of the packaging technologies that is widely adopted for making smaller
footprints, but any bumps or scratches may damage those ultras mall parts so
gentle handling is strongly recommended.
DO NOT DROP SSD
INSTALL SSD WITH CARE
STORE SSD IN A PROPER PACKAGE
8.2 Assembly Precautions
M Key M.2 SSD (Figure 1) is only compatible to M Key (Figure 2) socket. As
shown in Use Case 2, misuse may cause severe damages to SSD including burn-
out.
Seagate Technology LLC
AMERICAS Seagate Technology LLC 47488 Kato Road, Fremont, California 94538,
United States, 510-661-1000
ASIA/PACIFIC Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang
Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology Netherlands BV, Tupolevlaan,
105, 119 PA Schipol- Rijk. the Netherlands
Publication Number: 205237900, Rev A
November 2023
Documents / Resources
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SEAGATE XP480SE30001 Nytro 4350 NVMe
SSD
[pdf] User Guide
XP480SE30001 Nytro 4350 NVMe SSD, XP480SE30001, Nytro 4350 NVMe SSD, 4350 NVMe
SSD, NVMe SSD, SSD
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References
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Read User Manual Online (PDF format)
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