Lenovo ThinkSystem CM893a Read Intensive SATA 6Gb SSDs User Guide
- June 12, 2024
- Lenovo
Table of Contents
Lenovo ThinkSystem CM893a Read Intensive SATA 6Gb SSDs
Product Information
The ThinkSystem CM893a Read Intensive SATA SSDs are general-purpose SSDs designed for greater performance and endurance in a cost-effective design. These SSDs support a broad range ofworkloads and come with SED encryption as standard to ensure data security, even when the drive is removed from the server.
Lenovo Read Intensive SSDs are suitable for read-intensive and general-purpose data center workloads, providing outstanding IOPS/watt and cost/IOPS for enterprise solutions. They are an excellent choice for applications such as web serving, hyperscale cloud, content delivery, caching, databases, and analytics.
SEDs (Self-encrypting drives) offer benefits by encrypting data on-the-fly at the drive level with no performance impact. They also provide instant secure erasure, making the data no longer readable, and enable auto-locking to secure active data if a drive is misplaced or stolen from a system in use. These features are essential for businesses, especially those storing customer data.
The CM893a SSDs have features including a low cost, read-intensive design from Samsung, a 2.5-inch industry standard form factor with hot-swap tray, a 6 Gbps SATA interface, TCG Opal# SED drive encryption, Advanced ECC Engine and End- to-End Data Protection, Samsung V6 (128-layer) TLC V-NAND for improved data integrity, advanced power-loss protection (PLP) architecture,support for Self- Monitoring, Analysis and Reporting Technology (S.M.A.R.T), and Dynamic Thermal Guard Protection to prevent overheating.
It is important to note that due to the behavior of Read-Intensive solid-state drives, careful planning must be done to use them only in read-intensive or mix-use up to 70% read/30% write environments to ensure that the TBW (Total Bytes Written) of the drive will not be exceeded before the required life expectancy.
The 1.92TB CM893a drive has an endurance of 3,504 TB of totalbytes written (TBW). For full operation over five years, the writeworkload must be limited to no more than 1,920 GB of writes per day, which is equivalent to 1.0 full drive writes per day (DWPD). For the device to last three years, the drive write workload must be limited to no more than 3,200 GB of writes per day, which is equivalent to 1.7 full drive writes per day.
Product Usage Instructions
- Ensure that the ThinkSystem CM893a Read Intensive SATA SSD is compatible with your system.
- Install the SSD in a 2.5-inch hot-swap tray according to the manufacturer’s instructions.
- Connect the SSD to your system using the 6 Gbps SATA interface.
- If data security is required, enable SED drive encryption using the provided tools or software.
- Configure any additional settings or features according to your requirements, such as Advanced ECC Engine, End-to-End Data Protection, and Dynamic Thermal Guard Protection.
- Monitor the SSD’s health and performance using Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T).
- Plan your workload carefully to ensure that the TBW of the drive will not be exceeded before the required life expectancy. Use the drive only in read-intensive or mix-use up to 70% read/30% write environments.
- If using the 1.92TB CM893a drive, limit the write workload to no more than 1,920 GB of writes per day for full operation overfive years, or no more than 3,200 GB of writes per day for the device to last three years.
- Follow proper procedures for drive removal or replacement, ensuring that the system is powered off and any necessary precautions are taken to prevent data loss or damage.
- Refer to the documentation flyer included with the SSD for additional information and troubleshooting tips.
Product Guide
The ThinkSystem CM893a Read Intensive SATA SSDs are general-purpose SSDs that are engineered for greater performance and endurance in a cost-effective design, and to support a broader set of workloads.With SED encryption as standard, these drives help ensure data security, even when the drive is removed from the server.
SED support: All drives listed in this product guide include SED drive encryption. Our naming convention for new drives doesn’t include SED in the name.
Figure 1. ThinkSystem CM893a Read Intensive SATA SSDs
Did you know?
Lenovo Read Intensive SSDs are suitable for read-intensive and general-purpose
data center workloads. Overall, these SSDs provide outstanding IOPS/watt and
cost/IOPS for enterprise solutions and are an excellent choice for
applications such as web serving, hyperscale cloud, content delivery, caching,
databases, and analytics
Self-encrypting drives (SEDs) provide benefits by encrypting data on-the-fly
at the drive level with no performance impact, by providing instant secure
erasure thereby making the data no longer readable, and by enabling auto-
locking to secure active data if a drive is misplaced or stolen from a system
while in use. These features are essential for many businesses, especially
those storing customer data.
Part number information
The following table lists the part numbers and feature codes. Table 1.
Ordering part numbers and feature codes
Part number
| Feature code|
Description
|
Vendor part number
---|---|---|---
4XB7A89423| BXDY| ThinkSystem 2.5″ CM893a 1.92TB Read Intensive SATA 6Gb HS
SSD| MZ7L31T9HELA- 00AV7
The part numbers include the following items:
- One 2.5-inch solid-state drive in a ThinkSystem hot-swap tray
- Documentation flyer
Features
The CM893a SSDs have the following features:
- Low cost, read-intensive SSD from Samsung
- 2.5-inch industry standard form factor with hot-swap tray
- 6 Gbps SATA interface
- TCG Opal SED drive encryption
- Advanced ECC Engine and End-to-End Data Protection
- Samsung V6 (128-layer) TLC V-NAND stacks the vertical NAND layers in three dimensions, solving the cell-to-cell interference that causes data corruption in planar NAND.
- Protect data integrity from unexpected power loss with Samsung’s advanced power-loss protection (PLP) architecture
- Supports Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T).
- Dynamic Thermal Guard Protection protects the SSD from overheating by automatically controlling the speed of the CPU relative to its core temperature
Read-Intensive (Entry) SSDs and Write-Intensive (Performance) SSDs have similar read and write IOPS performance, but the key difference between them is their endurance (or lifetime) (that is, how long they can perform write operations because SSDs have a finite number of program erase (P/E) cycles). Read- Intensive SSDs have a better cost IOPS ratio but lower endurance compared to Write-Intensive SSDs. SSD write endurance is typically measured by the number of program erase (P/E) cycles that the drive incurs over its lifetime, listed as the total bytes of written data (TBW) in the device specification. The TBW value assigned to a solid-state device is the total bytes of written data (based on the number of P/E cycles) that a drive can be guaranteed to complete (% of remaining P/E cycles = % of remaining TBW). Reaching this limit does not cause the drive to immediately fail. It simply denotes the maximum number of writes that can be guaranteed. A solid-state device will not fail upon reaching the specified TBW. At some point based on manufacturing variance margin, after surpassing the TBW value, the drive will reach theend-of-life point, at which the drive will go into a read-only mode.Because of such behavior by Read-Intensive solid-state drives, careful planning must be done to use them only in read-intensive or mix-use up to 70% read/30% write environments to ensure that the TBW of the drive will not be exceeded before the required life expectancy.
The 1.92TB CM893a drive has an endurance of 3,504 TB of total bytes written (TBW). This means that for full operation over five years, write workload must be limited to no more than 1,920 GB of writes per day,which is equivalent to 1.0 full drive writes per day (DWPD). For the device to last three years, the drive write workload must be limited to no more than 3,200 GB of writes per day, which is equivalent to 1.7 full drive writes per day.
The benefits of drive encryption
Self-encrypting drives (SEDs) provide benefits in three main ways:
- By encrypting data on-the-fly at the drive level with no performance impact
- By providing instant secure erasure (cryptographic erasure, thereby making the data no longer readable)
- By enabling auto-locking to secure active data if a drive is misplaced or stolen from a system while in use
The following sections describe the benefits in more details.
Automatic encryption
It is vital that a company keep its data secure. With the threat of data loss
due to physical theft or improper inventory practices, it is important that
the data be encrypted. However, challenges with performance, scalability, and
complexity have led IT departments to push back against security policies that
require the use of encryption. In addition, encryption has been viewed as
risky by those unfamiliar with key management, a process for ensuring a
company can always decrypt its own data. Self-encrypting drives
comprehensively resolve these issues, making encryption both easy and
affordable. When the self-encrypting drive is in normal use, its owner need
not maintain authentication keys (otherwise known as credentials or passwords)
in order to access the data on the drive. The self-encrypting drive will
encrypt data being written to the drive and decrypt data being read from it,
all without requiring an authentication key from the owner.
Drive retirement and disposal
When hard drives are retired and moved outside the physically protected data
center into the hands of others, the data on those drives is put at
significant risk. IT departments retire drives for a variety of reasons,
including:
- Returning drives for warranty, repair, or expired lease agreements
- Removal and disposal of drives
- Repurposing drives for other storage duties
Nearly all drives eventually leave the data center and their owner’s control.
Corporate data resides on such drives, and when most leave the data center,
the data they contain is still readable. Even data that has been striped
across many drives in a RAID array is vulnerable to data theft because just a
typical single stripe in today’s high-capacity arrays is large enough to
expose for example, hundreds of names and bank account numbers.
In an effort to avoid data breaches and the ensuing customer notifications
required by data privacy laws, companies use different methods to erase the
data on retired drives before they leave the premises and potentially fall
into the wrong hands. Current retirement practices that are designed to make
data unreadable rely on significant human involvement in the process, and are
thus subject to both technical and human failure.
The drawbacks of today’s drive retirement practices include the following:
- Overwriting drive data is expensive, tying up valuable system resources for days. No notification of completion is generated by the drive, and overwriting won’t cover reallocated sectors, leaving that data exposed.
- Methods that include degaussing or physically shredding a drive are expensive. It is difficult to ensure the degauss strength is optimized for the drive type, potentially leaving readable data on the drive. Physically shredding the drive is environmentally hazardous, and neither practice allows the drive to be returned for warranty or expired lease.
- Some companies have concluded the only way to securely retire drives is to keep them in their control, storing them indefinitely in warehouses. But this is not truly secure because a large volume of drives coupled with human involvement inevitably leads to some drives being lost or stolen.
- Professional disposal services is an expensive option and includes the cost of reconciling the services as well as internal reports and auditing. Transporting of the drives also has the potential of putting the data at risk.
Self-encrypting drives eliminate the need to overwrite, destroy, or store
retired drives. When the drive is to be retired, it can be cryptographically
erased, a process that is nearly instantaneous regardless of the capacity of
the drive.
Instant secure erase
The self-encrypting drive provides instant data encryption key destruction via
cryptographic erasure. When it is time to retire or repurpose the drive, the
owner sends a command to the drive to perform a cryptographic erasure.
Cryptographic erasure simply replaces the encryption key inside the encrypted
drive, making it impossible to ever decrypt the data encrypted with the
deleted key. Self-encrypting drives reduce IT operating expenses by reducing
asset control challenges and disposal costs. Data security with self-
encrypting drives helps ensure compliance with privacy regulations without
hindering IT efficiency. So called “Safe Harbor” clauses in government
regulations allow companies to not have to notify customers of occurrences of
data theft if that data was encrypted and therefore unreadable. Furthermore,
self-encrypting drives simplify decommissioning and preserve hardware value
for returns and repurposing by:
- Eliminating the need to overwrite or destroy the drive
- Securing warranty returns and expired lease returns
- Enabling drives to be repurposed securely
Auto-locking
Insider theft or misplacement is a growing concern for businesses of all
sizes; in addition, managers of branch offices and small businesses without
strong physical security face greater vulnerability to external theft. Self-
encrypting drives include a feature called auto-lock mode to help secure
active data against theft.Using a self-encrypting drive when auto-lock mode is
enabled simply requires securing the drive with anauthentication key. When
secured in this manner, the drive’s data encryption key is locked whenever the
drive is powered down. In other words, the moment the self-encrypting drive is
switched off or unplugged, itautomatically locks down the drive’s data. When
the self-encrypting drive is then powered back on, it requires authentication
before being able to unlock its encryption key and read any data on the drive,
thus protecting against misplacement and theft.
While using self-encrypting drives just for the instant secure erase is an extremely efficient and effective means to help securely retire a drive, using self-encrypting drives in auto-lock mode provides even more advantages. From the moment the drive or system is removed from the data center (with or without authorization), the drive is locked. No advance thought or action is required from the data center administrator to protect the data. This helps prevent a breach should the drive be mishandled and helps secure the data against the threat of insider or outside theft.
Technical specifications
The following table lists the technical specifications of the CM893a SSDs.
Table 2. Technical specifications
Feature | 1.92 TB drive |
---|---|
Interface | 6 Gbps SATA |
Capacity | 1.92 TB |
SED encyption | TCG Opal |
Endurance (total bytes written) | 3504 TB |
Endurance (drive writes per day for 5 years) | 1 DWPD |
Data reliability (UBER) | < 1 in 1017 bits read |
MTBF | 2,000,000 hours |
IOPS reads (4 KB blocks) | 97,000 |
IOPS writes (4 KB blocks) | 31,000 |
Sequential read rate (128 KB blocks) | 560 MBps |
Sequential write rate (128 KB blocks) | 530 MBps |
Read latency (random) | 120 µs |
Write latency (random) | 40 µs |
Shock, non-operating | 1,500 G (Max) at 0.5 ms |
Vibration, non-operating | 20 G (20-2000 Hz) |
Typical power (R/W) | 2.2 W / 3.2 W |
Server support
The following tables list the ThinkSystem servers that are compatible.
Table 3. Server support (Part 1 of 3)
4XB7A89423 | Part Number |
---|---|
ThinkSystem 2.5″ CM893a 1.92TB Read Intensive SATA 6Gb HS SSD |
Description
N| SE350 (7Z46 / 7D1X)|
Edge
N| SE350 V2 (7DA9)
N| SE360 V2 (7DAM)
N| SE450 (7D8T)
N| ST50 V2 (7D8K / 7D8J)| 1S Intel V2
Y| ST250 V2 (7D8G / 7D8F)
Y| SR250 V2 (7D7R / 7D7Q)
N| SR635 V3 (7D9H / 7D9G)|
AMD V3
N| SR655 V3 (7D9F / 7D9E)
Y| SR645 V3 (7D9D / 7D9C)
Y| SR665 V3 (7D9B / 7D9A)
N| SR675 V3 (7D9Q / 7D9R)
N| ST650 V3 (7D7B / 7D7A)|
Intel V3
N| SR630 V3 (7D72 / 7D73)
N| SR650 V3 (7D75 / 7D76)
N| SR850 V3 (7D97 / 7D96)
N| SR860 V3 (7D94 / 7D93)
N| SR950 V3 (7DC5 / 7DC4)
4XB7A89423| Part Number
---|---
ThinkSystem 2.5″ CM893a 1.92TB Read Intensive SATA 6Gb HS SSD|
Description
N| SD665 V3 (7D9P)|
Dense V3
N| SD665-N V3 (7DAZ)
N| SD650 V3 (7D7M)
N| SD650-I V3 (7D7L)
Y| ST650 V2 (7Z75 / 7Z74)| 2S Intel V2
Y| SR630 V2 (7Z70 / 7Z71)
Y| SR650 V2 (7Z72 / 7Z73)
N| SR670 V2 (7Z22 / 7Z23)
Y| SR635 (7Y98 / 7Y99)|
AMD V1
Y| SR655 (7Y00 / 7Z01)
Y| SR655 Client OS
Y| SR645 (7D2Y / 7D2X)
Y| SR665 (7D2W / 7D2V)
N| SD630 V2 (7D1K)|
Dense V2
N| SD650 V2 (7D1M)
N| SD650-N V2 (7D1N)
Y| SN550 V2 (7Z69)
Y| SR850 V2 (7D31 / 7D32)| 4S V2
Y| SR860 V2 (7Z59 / 7Z60)
N| SR950 (7X11 / 7X12)|
8S
Table 5. Server support (Part 3 of 3)
Part Number| Description| 4S V1| 1S Intel V1| 2S
Intel V1| Dense V1
---|---|---|---|---|---
SR850 (7X18 / 7X19)| SR850P (7D2F / 2D2G)| SR860 (7X69 / 7X70)|
ST50 (7Y48 / 7Y50)| ST250 (7Y45 / 7Y46)| SR150 (7Y54)| SR250
(7Y52 / 7Y51)| ST550 (7X09 / 7X10)| SR530 (7X07 / 7X08)| SR550
(7X03 / 7X04)| SR570 (7Y02 / 7Y03)| SR590 (7X98 / 7X99)| SR630
(7X01 / 7X02)| SR650 (7X05 / 7X06)| SR670 (7Y36 / 7Y37)| SD530
(7X21)| SD650 (7X58)| SN550 (7X16)| SN850 (7X15)
4XB7A89423| ThinkSystem 2.5″ CM893a 1.92TB Read Intensive SATA 6Gb HS SSD| N|
N| N| N| N| N| N| N| N| N| N| N| N| N| N| N| N| N| N
Operating system support
SATA SSDs operate transparently to users, storage systems, applications,
databases, and operating systems.
Operating system support is based on the controller used to connect to the
drives. Consult the controller propduct guide for more information:
- RAID controllers: https://lenovopress.com/servers/options/raid
- SAS HBAs: https://lenovopress.com/servers/options/hba
IBM SKLM Key Management support
To effectively manage a large deployment of SEDs in Lenovo servers, IBM
Security Key Lifecycle Manager (SKLM) offers a centralized key management
solution. Certain Lenovo servers support Features on Demand (FoD) license
upgrades that enable SKLM support.
The following table lists the part numbers and feature codes to enable SKLM
support in the management processor of the server.
Table 6. FoD upgrades for SKLM support
Part number | Feature code | Description |
---|
Security Key Lifecycle Manager – FoD (United States, Canada, Asia Pacific, and
Japan)
00D9998| A5U1| SKLM for System x/ThinkSystem w/SEDs – FoD per Install w/1Yr
S&S
00D9999| AS6C| SKLM for System x/ThinkSystem w/SEDs – FoD per Install w/3Yr
S&S
Security Key Lifecycle Manager – FoD (Latin America, Europe, Middle East, and
Africa)
00FP648| A5U1| SKLM for System x/ThinkSystem w/SEDs – FoD per Install w/1Yr
S&S
00FP649| AS6C| SKLM for System x/ThinkSystem w/SEDs – FoD per Install w/3Yr
S&S
The IBM Security Key Lifecycle Manager software is available from Lenovo using
the ordering information listed in the following table.
Table 7. IBM Security Key Lifecycle Manager licenses
Part number | Description |
---|---|
7S0A007FWW | IBM Security Key Lifecycle Manager Basic Edition Install License + |
SW Subscription & Support 12 Months
7S0A007HWW| IBM Security Key Lifecycle Manager For Raw Decimal Terabyte
Storage Resource Value Unit License + SW Subscription & Support 12 Months
7S0A007KWW| IBM Security Key Lifecycle Manager For Raw Decimal Petabyte
Storage Resource Value Unit License + SW Subscription & Support 12 Months
7S0A007MWW| IBM Security Key Lifecycle Manager For Usable Decimal Terabyte
Storage Resource Value Unit License + SW Subscription & Support 12 Months
7S0A007PWW| IBM Security Key Lifecycle Manager For Usable Decimal Petabyte
Storage Resource Value Unit License + SW Subscription & Support 12 Months
Warranty
The ThinkSystem CM893a Read Intensive SATA SSDs carry a one-year, customer- replaceable unit (CRU) limited warranty. When the SSDs are installed in a supported server, these drives assume the system’s base warranty and any warranty upgrades. Solid State Memory cells have an intrinsic, finite number of program/erase cycles that each cell can incur. As a result, each solid state device has a maximum amount of program/erase cycles to which it can be subjected. The warranty for Lenovo solid state drives (SSDs) is limited to drives that have not reached the maximum guaranteed number of program/erase cycles, as documented in the Official Published Specifications for the SSD product. A drive that reaches this limit may fail to operate according to its Specifications.
Physical specifications
The CM893a SSDs have the following physical specifications:
Dimensions and weight (approximate, without the hot-swap tray):
- Height: 7 mm (0.3 in.)
- Width: 70 mm (2.8 in.)
- Depth: 100 mm (4.0 in.)
- Weight: 70 g (2.1 oz)
Shipping dimensions and weight for the 2.5-inch drives (approximate):
- Height: 63 mm (2.5 in.)
- Width: 133 mm (5.2 in.)
- Depth: 174 mm (6.9 in.)
- Weight (hot-swap): 433 g (1.0 lb)
Operating environment
The CM893a SSDs are supported in the following environment:
- Temperature: 0 to 70 °C (32 to 158 °F)
- Relative humidity: 5 to 95% (noncondensing)
- Maximum altitude: 3,050 m (10,000 ft)
Agency approvals
The CM893a SSDs conform to the following regulations:
- UL
- TUV
- FCC
- CE Mark
- C-Tick Mark
- BSMI (Taiwan)
- KCC (Korea EMI)
Related publications and links
For more information, see the following documents:
-
Samsung Data Center SSDs product page:
https://www.samsung.com/semiconductor/ssd/datacenter-ssd/ -
Lenovo ThinkSystem storage options product web page
https://lenovopress.com/lp0761-storage-options-for-thinksystem-servers -
Lenovo ThinkSystem SSD Portfolio comparison:
https://lenovopress.com/lp1261-lenovo-thinksystem-ssd-portfolio -
Lenovo server options product page
https://www.lenovo.com/us/en/data-center/options/ -
Lenovo RAID Introduction
https://lenovopress.com/lp0578-lenovo-raid-introduction -
Lenovo RAID Management Tools and Resources
https://lenovopress.com/lp0579-lenovo-raid-management-tools-and-resources
Related product families
Product families related to this document are the following:
- Drives
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References
- Lenovo RAID Introduction > Lenovo Press
- Lenovo RAID Management Tools and Resources (withdrawn product) > Lenovo Press
- RAID Adapters > Lenovo Press
- ThinkSystem CM893a Read Intensive SATA 6Gb SSDs Product Guide > Lenovo Press
- ThinkSystem CM893a Read Intensive SATA 6Gb SSDs > Lenovo Press
- Lenovo server options, accessories and upgrades | Lenovo US
- Copyright and Trademark Information | Lenovo US | Lenovo US
- Data center SSD | SATA SSD | Samsung Semiconductor Global