The TS1120 E05 Tape Drive is a follow-on to the 3592 Tape Drive Model J1A and the highly successful 3590 Enterprise Tape Drive. The TS1120 E05 Tape Drive is machine type 3592 and model E05. It is designed for high-performance tape applications, including:
- High-speed data-save operations where backup windows are critical, and large amounts of data are archived to tape.
- Large-scale automated tape environments where performance and reliability are required.
- Large-scale mass data archive applications where massive amounts of data need to be quickly saved to tape for storage and later recall (examples include the seismic industry, data warehousing, and record management applications).
The TS1120 E05, is the second generation of a new family of tape products that are designed to meet the growing needs of both new and existing IBM tape customers across a wide range of environments. Highlights of the TS1120 E05 Tape Drive include:
- Higher performance, which can help reduce the number of tape drives required
- Larger capacity compared to the 3592 J1A, to help you reduce the number of cartridges required and floor space needed
- Smaller form factor compared to the 3592 J1A than the 3590 Tape Drive, which can help reduce the automation foot print
- Dual-ported native switched fabric interface, designed to enhance the attachment flexibility
- High reliability, to help improve operations
- Additional performance and access improvements over the 3592 J1A
The TS1120 E05 is designed to provide over 8 times the native cartridge capacity of a 3590 E or H Model, or 1.6 times the cartridge capacity of a 3592 Model J1A. The exact ratio depends on which cartridge is used with the tape drive. The following table compares the cartridge capacity versus the 3590 H Model and the 3592 Model J1A:
3590 3592 TS1120 Model H Model J1A Model E05 native native native cartridge cartridge cartridge capacity capacity capacity 3590 High 30 GB N/A N/A Performance Tape Cartridge 3590 Extended 60 GB N/A N/A High Performance Tape Cartridge Enterprise Tape N/A 300 GB 500 GB Cartridge 3592
N/A = Not applicable
The following table compares the cartridge capacity of the TS1120 E05 Tape Drive with the 3590 H Model and 3592 Tape Drive Model J1A at 2:1 and 3:1 compression.
3590 3592 TS1120 Model H Model J1A Model E05 cartridge cartridge cartridge capacity capacity capacity (2:1/3:1) (2:1/3:1) (2:1/3:1) 3590 High 60 GB/ N/A N/A Performance Tape 90 GB Cartridge 3590 Extended 120 GB/ N/A N/A High Performance 180 GB Tape Cartridge Enterprise Tape N/A 600 GB/ 1 TB/ Cartridge 3592 900 GB 1.5 TB
The TS1120 EO5 uses a design that increases the native data rate to 100 MB/sec, versus the 40 MB/sec data rate of the 3592 Tape Drive Model J1A. With compression and a 32 K blocksize, the TS1120 E05 can offer up to 1.6 times the data rate of the 3592 Model J1A. The TS1120 E05 is designed to offer improved access characteristics in load/ready time, search velocity, and rewind time versus the 3590. The TS1120 E05 has other enhancements designed to help aid small file and Hierarchical Storage Manager performance.
Note: The actual throughput a customer may achieve is a function of many components, such as system processor, disk data rate, data block size, data compressibility, I/O attachments, SAN, and the system or application software used. Although the drive is capable of a 100 MB/sec native data rate, other components may limit the actual effective data rate.
The TS1120 E05 is designed to support capacity scaling of an individual tape cartridge to 100 GB. Capacity scaling allows the utilized length of tape to be logically shortened, allowing improved data access times in trade-off for reduced capacity. The tapes can subsequently be scaled back to full capacity as needed. Multiple scale settings are supported on the E05 drive including a 100GB, 20% scaled JA cartridge.
The TS1120 E05 Tape Drive allows an application to issue a command to scale the IBM TotalStorage Tape Data Cartridge 3592 to 100 GB. Customers can exploit the capacity scaling capability of the TS1120 E05. Refer to the publication DFSMS Software Support for IBM TotalStorage Enterprise Tape System 3592 (SC26-7514-02), for more information about software support for the TS1120 E05.
Cartridges pre-scaled for 100 GB capacity are also available for order with the 3599 Models E11, E21, 011, and 021. These pre-scaled cartridges can be ordered (and labeled) for a specific VOLSER range. This allows capacity scaling to be exploited by an application that permits media pools to be defined by VOLSER range.
Media and cartridge capacity
The TS1120 E05 provides capacity leadership with media re-use and uses the JA tape cartridge with an advanced metal particle tape specifically optimized for the enterprise tape environment, providing a native cartridge capacity of 500 GB (or up to 1.5 TB with 3:1 compression). This is a significant improvement over the 10 GB to 60 GB native cartridge capacity available with the 3590 B, E, or H Models, or the 300 GB native cartridge capacity available with the 3592 Tape Drive Model J1A. This can be beneficial in space savings and economy of data storage since it can help lower the cost of storage per megabyte. For applications that fill current data cartridges, this can help reduce the number of tape cartridges required. The reduced number of cartridges may also help free up floor space for other requirements and reduce the number of automation slots used.
The robust 3590-style cartridge shell is designed to sustain a 1 meter drop. The cartridge has a similar form factor as the 3590 and 3490, allowing it to be used in 3494 and 3584 Tape Libraries and STK Silo ACS solutions. The Enterprise Tape Cartridge 3599 also contains cartridge memory that is a passive, contactless silicon storage device. It is used to hold information about the specific cartridge, including the VOLSER, the media in the cartridge, and the drive.
The TS1120 E05 has dual-ported 4-Gbps native switched fabric Fibre Channel interfaces. This offers attachment flexibility in an open systems environment. The drives can be directly attached to open systems servers with Fibre Channel, or to ESCON or FICON servers with the 3592 J70 Controller or 3494 Virtual Tape Server Models B10 or B20. The TS1120 E05 is supported in a wide range of environments including selected IBM mainframe, iSeries, AS/400, pSeries, RS/6000, xSeries, Sun, and Hewlett Packard servers, as well as Intel-compatible servers running Microsoft Windows and Linux. The TS1120 E05 can also attach to zSeries® servers with FCP channels and Linux. The TS1120 E05 may provide additional value-add when supported in a 3584 Tape Library, 3494 Tape Library, and in a StorageTek 9310 ACS environment.
Statistical Analysis and Recording System
The TS1120 E05 uses Statistical Analysis and Recording System to assist in isolating failures between media and hardware. It is designed to use the cartridge performance history saved in the cartridge and drive performance history kept in the drive to determine the more likely cause of failure. It is designed to cause the drive to mark the media as degraded, and to indicate that the hardware has degraded.
High-availability data path failover and dynamic load balancing
High-availability data path failover is available with the AIX®, Linux, Solaris, and Windows IBM tape device drivers. The failover mechanism is designed to enable you to configure multiple redundant paths in a SAN environment with the TS1120 E05. In the event of a path or component failure, the failover mechanism is designed to automatically enable error recovery to retry the current operation using an alternate, preconfigured path without aborting the current job in progress. This supports flexibility in SAN configuration, availability, and management.
A function in the AIX, Linux, and Solaris IBM tape device drivers, Dynamic Load Balancing, is also available for the TS1120 E05 Tape Drives used in a SAN environment. The dynamic load balancing support is designed to improve resources for devices that have physical connections to multiple Host Bus Adapters (HBA) in the same machine. When an application opens a device that has multiple HBA paths configured, the device driver determines which path has the HBA with the lowest usage, and assigns that path to the application. The device driver is designed to dynamically track the usage on each HBA as applications open and close devices, and balance the number of applications using each HBA in the machine. This can help optimize HBA resources and improves overall performance.
The TS1120 E05 incorporates tape enhancements introduced with the 3592 Model J1A Tape Drive that are designed to help improve performance, capacity, and availability including:
- N+1 power supplies: The TS1120 E05 incorporates n+1 power supplies when it is installed in an automation frame. This is designed to help increase drive availability in the event of a power supply failure.
- Digital speed matching: The TS1120 E05 is designed to dynamically perform digital speed matching to adjust the drive’s native data rate to the net host data rate (after data compressibility has been factored out). This is designed to help allow slower hosts to stream the tape drive. The TS1120 has six speed matching levels compared to the four offered in the 3592 J1A.
- Channel calibration: The channel calibration feature is designed to allow for customization of each read/write data channel for optimum performance. The customization can enable compensation for variations in the recording channel transfer function, media characteristics, and read/write head characteristics. The TS1120 E05 is designed to automatically perform recalibration in the field if it detects degraded performance.
- High resolution tape directory plus enhanced search speed: The TS1120 E05 Tape Drive maintains a tape directory structure with a high granularity of information about the physical position of data blocks on the media. This feature, plus the increased search speed allow the TS1120 E05 to have improved nominal and average access times for locate operations versus previous IBM tape drives.
- Streaming Lossless Data Compression (SLDC) algorithm: SLDC is an implementation of a Lempel-Ziv class 1 (LZ-1) data compression algorithm. It is an extension to Adaptive Lossless Data Compression (ALDC) and is designed to offer an improvement over previous IBM lossless compression algorithms.
In addition, the TS1120 E05 offers the following enhancements over the 3592 Model J1A Tape Drive:
- New dual-stage 16-head actuator designed to provide precision head alignment to help support higher track density and improved data integrity
- Improvement in physical load/ready time of over 20% versus 3591 J1A.
- Large internal data buffer: The TS1120 E05 Tape Drive has a 512 MB internal data buffer versus a 128 MB maximum in the 3592 Model J1A and a 16 MB maximum in the 3590 Tape Drive. Along with enabling higher performance characteristics, the data buffer is designed to use support read ahead of approximately 500 MB of compressed data from tape and provide high performance random skip forward sequential (short hop) locates common in database search and tape software recycle operations.
- Improved error correction capabilities (ECC): The correction power of the ECC code has been increased over the previous design offered with the 3592 Model J1A format that is designed to offer increased data reliability.
- Offboard data string searching: The TS1120 E05 Tape Drive can search the data content of host records for string matches offboard from the host server. The tape drive can perform this search at maximum data rate (100 MB/sec native) while it would take much longer for a host server to read the data, buffer the data to disk, and then parse the actual data stream with host software routines.
- Enhanced logic to report Logical End-of-Tape (LEOT): LEOT is now reported based on a combination of capacity-based and position-based LEOT indicators. The TS1120 E05 monitors the total accumulated number of physical tape datasets written to the volume and will report LEOT based on this capacity-based LEOT value. This allows tape copies to complete without overflow a much higher percentage of the time.
- Native search speed increased to 10 mb per second.
4 Gb Fibre Channel Switch
The 4 Gb Fibre Channel Switch has 20 LC short wavelength ports for attachment of up to 16 3592 Tape Drives or 12 3590 Tape Drives to a 3592 Controller Model J70. The 4 Gb Fibre Channel Switch has 20 LC short wavelength ports for attachment of up to 12 3592 Tape Drives to a 3494 VTS Models B10 or B20. The 4 Gb Fibre Channel Switch has dual-power connection for attachment to separate power supplies. Intermix of 3590 and 3592 Tape Drives is not allowed.
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