®
IBM Half-high LTO Generation 4 SAS Tape Drive
IBM System x at-a-glance guide
The IBM Half High LTO Generation 4 SAS Tape Drive is the fourth-generation Linear Tape-Open (LTO)
offering introducing larger storage capacities, increased performance, and advanced security features to
effectively meet the demanding backup, archival and regulatory compliance requirements of your System
x environments.
The IBM Half High LTO Generation 4 SAS Tape Drive is an excellent tape storage solution for businesses
requiring backup or low-cost, real-time archiving of their data within a small window of time. This fourth
generation drive provides up to twice the storage capacity, up to 1.6 TB with 2:1 compression, and
provides up to a 50% performance increase, up to 240 MBps (864 GB/hr) with 2:1 compression, over the
preceding LTO 3 half height technology. This enterprise data protection offering is available in a 5.25-inch
half-height internal form factor for integration into IBM System x tower servers and external IBM 1U
rack-mount enclosures or a half-height external unit for stand-alone table top or rack shelf applications.
Figure 1 shows the IBM Internal Half-high LTO Generation 4 SAS Tape Drive.
Figure 1. IBM Internal Half-high LTO Generation 4 SAS Tape Drive
Did You Know?
Data security is a growing requirement for businesses of all sizes today. The IBM Half-high LTO
Generation 4 SAS Tape Drive delivers advanced security features to help ensure compliancy with data
security, information disclosure, and privacy regulations for data at rest. Beyond WORM (Write-Once,
Read-Many) cartridge support to preserve data in a non-erasable and non-rewritable format, LTO 4
technology also offers data encryption capabilities. LTO 4 hardware-based data encryption can assist in
safeguarding against costly security breaches and exposure of proprietary data if a data cartridge is
stolen or lost.
IBM Half-high LTO Generation 4 SAS Tape Drive
1
Part number information
Table 1 lists the ordering part numbers and feature codes.
Table 1. Ordering part numbers and feature codes
Description
Part number
Feature code
IBM Internal Half-high LTO Generation 4 SAS Tape Drive
44E8895
5397
IBM External Half High LTO Gen 4 SAS Drive, with US line cord
3628L4X
None
IBM External Half High LTO Gen 4 SAS Drive, with no line cord
3628N4X
None
IBM LTO Generation 4 Media 5 Pack
46C5359
5701 (1 cartridge)
IBM LTO Ultrium 4 800GB WORM Data Cartridge without labels - 20 pack
95P4461*
Not available
IBM LTO Universal Cleaning Cartridge
49Y9893
5347
* To order WORM cartridges, in United States and Canada, please call 1-888-IBM-MEDIA. For all other geographic
locations, please select your country and distributor from http://ibm.com/systems/storage/media/distributors/.
The part number for the IBM Internal Half-high LTO Generation 4 SAS tape drive includes:






LTO Generation 4 SAS tape drive assembly
Mounting screws
CD-ROM containing the User's Guide
Cleaning cartridge
Drive rails
SAS cable for internal tape connectivity
The part numbers for the IBM External Half-high LTO Generation 4 SAS Tape Drive includes the following
items:





LTO Generation 4 SAS tape drive in an external enclosure
CD-ROM containing the User's Guide
Cleaning cartridge
3 meter external SAS cable
3628L4X also includes a 2.8 meter (9 ft) 10A / 125V US line cord
IBM Half-high LTO Generation 4 SAS Tape Drive
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Features
The features of the IBM Half-high LTO Generation 4 SAS Tape Drive has the features and benefits listed
in Table 2:
Table 2. Features and benefits (Part 1)
Feature
Benefits
6 Gbps SAS host interface

Fast connection to the server
Up to 240 MBps data transfer
rate


Helps reduce the time required for backup
50% transfer rate increase from current Half-high LTO Generation 3 drives
Up to 1.6 TB cartridge
capacity

Helps store greater amounts of data as your business grows
Digital Speed Matching
(DSM)


Supported on Ultrium 4 media in increments of 30 MBps to 120 MBps
Along with a larger buffer, helps to maximize drive performance when data
rates are less than optimal
256 MB buffer

Together with Digital Speed Matching, helps the drive mitigate fluctuations in
data rates
Adaptive Data Compression

With the 256 MB buffer, helps you achieve optimal performance and storage
capacity
Helps improve data throughput and tape repositions
Helps support data integrity through synchronous, dynamic swapping of data
compression scheme


256 AES encryption



Helps keep the data on your tape media secure with encryption
Helps meet compliance requirements
Helps improve performance of your backup processes with dedicated
encryption/decryption core
16 channel head

Increases data throughput to support higher drive speeds
Timing-based servo
positioning



Patented technology that provides greater precision when writing data to tape
Enables the drive to support the use of narrower tracks
With the 16 channel head, linear density of the data is increased by 31% when
compared to LTO Generation 3 drives
Advanced tape loader and
threader mechanism

Improves error recovery and provides greater reliability when loading threading
and unloading tape cartridges
Independent loader and threader motors, coupled with positive pin retention
helps retain the pin during a miss-pick and helps improve load & thread
reliability
Designed to improve drive and media reliability


“On-the-fly” adaptive channel
calibration


Allows the drive to adjust to variations in the media and head while calibrating
the channel.
Helps improve data throughput rates and data integrity
Copper based chips

Based on IBM copper chip technology, provides improved performance while
providing lower overall power consumption over previous generations of LTO
drives
Superior power management

Enables the drive to operate in write mode and idle mode for when the drive is
not in use
Improves heat dissipation and provides greater operational efficiency than
previous-generation LTO drives

IBM Half-high LTO Generation 4 SAS Tape Drive
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Table 2. Features and benefits (Part 2)
Feature
Benefits
WORM support


Flexible mounting alternatives


WORM capable cartridges give you the option of storing vital data in a
non-erasable, non-rewritable format, to meet strict regulatory requirements for
data retention
Helps address evolving regulatory initiatives
Half height external SAS tape drive for a low cost and space efficient table top
or shelf unit alternative to mounting a drive internally in your server.
5.25 in. half high internal SAS tape drive designed for internal installation in
IBM System x tower servers or external IBM 1U rackmount enclosures
Specifications
The specifications for the Half-high LTO Generation 4 SAS tape drive are (when using Ultrium 4
cartridges):








6 Gbps SAS host interface
Up to 800 GB native capacity and up to 1600 GB in compressed mode (2:1 compression ratio)
120 MBps native back-up rate and up to 240 MBps in compressed mode (2:1 compression ratio)
Support for WORM (write once read many) on WORM cartridge types
Burst data-transfer rate of 300 MBps for the SAS interface
256 MB read-and-write cache
Read/Write compatibility with LTO Generation 3 cartridges. Read compatibility with LTO 2 and 3
cartridges
Support for encryption of data on Ultrium 4 cartridges
Key prerequisites
The IBM Half-high LTO Generation 4 SAS Tape Drive prerequisites are:



SAS controller
One or more LTO Generation 3 or LTO Generation 4 data cartridge (not supplied with drive option)
For the internal drive, an available half-height drive bay or supported external tape enclosure.
Physical specifications
The physical specifications of the IBM Internal Half-high LTO Generation 4 SAS Tape Drive are:




Height: 43 mm (1.75 in.)
Width: 149 mm (5.85 in.)
Depth: 210 mm (8.40 in.)
Weight: 1.5 kg (3 lb. 5 oz.)
The IBM External Half-high LTO Generation 4 SAS Tape Drive has the following physical specifications:




Height: 58 mm (2.3 in)
Width: 213 mm (8.4 in)
Depth: 332 mm (13.1 in)
Weight: 4.3 kg (9.5 lb)
IBM Half-high LTO Generation 4 SAS Tape Drive
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Figure 2 shows the IBM External Half High LTO Generation 4 SAS Drive.
Figure 2. IBM External Half High LTO Generation 4 SAS Drive
Operating environment
The IBM Half-high LTO Generation 4 SAS Tape Drive is supported in the following environment:

Temperature:



Relative humidity:



Operating: 10° to 40° degrees C (50° to 104° degrees F)
Non-operating: -40° to 60°C (-40° to 140°F)
Operating: 20% to 80% (non-condensing)
Non-operating: 10% to 90% (non-condensing)
Maximum altitude:


Operating: 3048 m (10000 ft.)
Non-operating: 3048 m (10000 ft.)
Warranty
The IBM Internal Half-high LTO Generation 4 SAS tape drive has a one-year limited warranty. When
installed in a System x server, this tape drive assumes your system's base warranty and any IBM
ServicePack upgrade. The IBM External Half-high LTO Generation 4 SAS Tape Drive has a three-year
warranty.
IBM Half-high LTO Generation 4 SAS Tape Drive
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Supported servers
The IBM Half-high LTO Generation 4 SAS Tape Drive is supported in the IBM System x servers that we
listed in Table 3.
Table 3. Supported System x servers (Part 1)
Adapter
Internal LTO 4 SAS Tape Drive (installed
internally to the server)
N
Y*
Y
N
N
N
Y
Y
Y
N
Y
Y
Y
Internal LTO 4 SAS Tape Drive (installed
externally in an enclosure)
N
Y*
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
External LTO 4 SAS Tape Drive
N
N
Y
Y
Y
Y
N
Y
Y
Y
N
Y
Y
* The tape drive is supported in x3200 M2 machine types 4367 and 4368 only.
Table 3. Supported System x servers (Part 2)
Adapter
Internal LTO 4 SAS Tape Drive (installed
internally to the server)
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Internal LTO 4 SAS Tape Drive (installed
externally in an enclosure)
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
External LTO 4 SAS Tape Drive
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
N
Y
Y
Y
Internal use
The following components are needed:


A supported SAS host bus adapter installed in the server (see Table 3)
An available 5.25-inch, half-height bay
External use
If the internal tape drive is to be installed in an external enclosure, the following components are needed.
We describe these enclosures and the enclosure adapter kit in the "Supported enclosures and enclosure
kit" section.

A supported SAS host bus adapter installed in the server (see Table 3)

A supported external enclosure:




IBM 1U Rackmount Tape Enclosure
IBM 4U Rackmount Tape Enclosure (now withdrawn)
IBM Half High Tabletop Tape Enclosure
An IBM SAS Enclosure Adapter Kit (40K2599)
IBM Half-high LTO Generation 4 SAS Tape Drive
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If the external tape drive is to be used, the a supported SAS host bus adapter installed in the server is
needed. The host bus adapters supported with the tape drive are listed in Table 4.
Table 4. Host Bus Adapters for use with the IBM Half-high LTO Generation 4 SAS Tape Drive
Description
Part number
Feature code
IBM SAS HBA Controller
25R8060
1681
IBM 3 Gb SAS HBA Controller v2
44E8700
3583
IBM 6Gb SAS HBA Controller
46M0907
3875
For the latest and most accurate compatibility information, visit our ServerProven Web site at:
http://ibm.com/servers/eserver/serverproven/compat/us/ or the IBM System x Configuration and Options
Guide at: http://www.ibm.com/systems/xbc/cog/.
Supported enclosures and enclosure kit
You can use the enclosures and enclosure kit shown in Table 5 with the internal tape drive when it is to be
installed externally.
Table 5. Enclosures for use with the IBM Internal Half-high LTO Generation 4 SAS Tape Drive
Description
Part number
Feature code
IBM 1U Rack-mount Tape Enclosure
87651UX (AG)*
87651NX (AP and EMEA)†
8765HC1 fc 2290
IBM 4U Rack-mount Tape Enclosure
(withdrawn)
87664UX (AG)*
8766NX (AP and EMEA)†
Not applicable
IBM Half High Tabletop Tape Enclosure
8767HHX (AG)*
8767HNX (AP and EMEA)†
8767HC1 fc 2287
IBM SAS Enclosure Adapter Kit‡
40K2599
5382
* These models are for customers in the Americas Group (AG - Canada, U.S., and countries in South America).
These models ship with a NEMA 5-15P line cord
† These models are for customers in the countries known collectively as Asia Pacific (AP) and Europe, Middle East,
Africa (EMEA). These models do not ship with a line cord.
‡ One adapter kit is needed per drive
The following figure shows the IBM Half-high LTO Generation 4 SAS Tape Drive installed in the left most
bay of the IBM 1U Rack-mount Tape Enclosure (87651UX).
Figure 3. The tape drive installed in the 1U Rack-mount Tape Enclosure
IBM Half-high LTO Generation 4 SAS Tape Drive
7
The IBM SAS Enclosure Adapter Kit, 40K2599, includes the following items:


SAS adapter/connector
3M external SAS cable
Popular configurations
In this section, we illustrate how you can use the IBM Half-high LTO Generation 4 SAS Tape Drive in
configurations.
Internal installation
The following figure shows the IBM Half-high LTO Generation 4 SAS Tape Drive installed internally in a
tower server.
Figure 4. The IBM Half-high LTO Generation 4 SAS Tape Drive installed internally in a tower server
Table 6 lists the parts that are used.
Table 6. Components used when installing the IBM Half-high LTO Generation 4 SAS Tape Drive into an
x3500 M2 server
Diagram
reference
Part number/
machine type
Description
Quantity
Varies
Supported server
1
44E8895
IBM Half High LTO Generation 4 SAS Tape Drive (includes
internal cable)
1
46M0907
IBM 6 Gb SAS HBA Controller
1
IBM Half-high LTO Generation 4 SAS Tape Drive
8
Installation in a 1U external enclosure
The following figure shows the IBM Internal Half-high LTO Generation 4 SAS Tape Drive installed in an
IBM 1U Tape Drive External Enclosure and connected to a System x server.
Figure 5. The tape drive installed in an IBM 1U Tape Drive External Enclosure and connected to a System
x server
Table 7 lists the parts that are used.
Table 7. Components used when connecting the IBM Half-high LTO Generation 4 SAS Tape Drive
installed in external tape drive enclosure to a supported System x server
Diagram
reference
Inside the
enclosure
Part number/
machine type
Description
Quantity
Varies
Supported System x server
1
46M0907
IBM 6 Gb SAS HBA Controller
1
44E8895
IBM Half-high LTO Generation 4 SAS Tape Drive
1
87651UX
IBM 1U Tape Drive External Enclosure
1
40K2599
IBM SAS Enclosure Adapter Kit (includes the internal cable, 3m
external SAS cable)
1
IBM Half-high LTO Generation 4 SAS Tape Drive
9
The following figure shows an IBM 1U Tape Drive External Enclosure without the SAS Adapter Kit and
after installing the SAS Adapter Kit.
Figure 6. The 1U Tape Drive Enclosure with and without the SAS Enclosure Adapter Kit
Supported software products
The IBM Half-high LTO Generation 3 SAS Tape Drive supports the following software products:




CA Brighstor
Tivoli Storage Manager
Symantec Backup Exec
Symantec Net Backup
Supported operating systems
The IBM Half-high LTO Generation 3 SAS Tape Drive supports the following operating systems:




SUSE Linux
Red Hat Linux
Microsoft Windows 2003
Microsoft Windows 2008
For the latest information about the specific versions and service packs that are supported, see IBM
ServerProven at:
http://ibm.com/servers/eserver/serverproven/compat/us/
When you arrive at the IBM ServerProven site, select the blade server and then select the expansion card
to see the supported operating systems.
IBM Half-high LTO Generation 4 SAS Tape Drive
10
Related publications
For more information, refer to the following resources:

IBM HH LTO Generation 4 SAS Tape Drive Installation and User Guide
http://www.ibm.com/support/docview.wss?uid=psg1MIGR-5074991

Installation Guide for IBM 1U Rackmount Tape Enclosure
http://www.ibm.com/support/docview.wss?uid=psg1MIGR-64787

Installation Guide for IBM 4U Rackmount Tape Enclosure
http://www.ibm.com/support/docview.wss?uid=psg1MIGR-64794

Installation Guide for IBM Half High Tabletop Tape Enclosure
http://www.ibm.com/support/docview.wss?uid=psg1MIGR-64792

IBM System x Configuration and Options Guide
http://www.ibm.com/systems/xbc/cog/

IBM US Announcement Letter for the IBM HH LTO Generation 4 SAS Tape Drive
http://ibm.com/common/ssi/cgi-bin/ssialias?infotype=dd&subtype=ca&&htmlfid=897/ENUS108-272
IBM Half-high LTO Generation 4 SAS Tape Drive
11
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IBM Half-high LTO Generation 4 SAS Tape Drive
12
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IBM Half-high LTO Generation 4 SAS Tape Drive
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