III. RESULTADOS
3.1. Presentación de resultados
Beginning with LTO3, Write Once Read Many (WORM) functionality provides for
non-erasable, non-rewritable operation with tape media and is designed for long-term tamper resistant record retention.
The IBM LTO3 specification for WORM includes the use of low-level encoding in the Cartridge Memory (CM), which is also mastered into the servo pattern as part of the manufacturing process. This encoding is designed to prevent tampering.
Data can be appended at the end of a WORM cartridge to which data was previously written, allowing the full use of the high capacity tape media.
LTO3 WORM cartridges can be used with any LTO3 tape drive with the appropriate
microcode and firmware. LTO3 non-WORM and WORM cartridges can coexist in the same library.
The same description fits the LTO4 WORM cartridges. Any LTO4 Tape Drive can use them and can coexist with non-WORM cartridges. Additionally, the LTO4 drive can read and write WORM and non-WORM LTO3 cartridges.
Figure 4-12 shows IBM LTO3 and LTO4 media. The two-tone cartridges in the picture are LTO3 WORM media.
Figure 4-12 IBM LTO Ultrium 3 and IBM LTO Ultrium 4 media
Labels
The LTO cartridge label uses the barcode symbology of Uniform Symbol Specification-39. A description and definition are available from the Automatic Identification Manufacturers (AIM) specification Uniform Symbol Specification-39 and the ANSI MH10.8M-1993 ANSI Barcode specification.
The barcode string consists of a start character, eight alphanumeric characters, and the stop character. Quiet zones precede and follow the start and stop characters. The first six
characters can be any combination of uppercase A-Z or 0-9 (for example, ABC123) to identify the cartridge volume. The last two characters are determined by the LTO cartridge media type (that is, “L” for LTO and “1” for tape cartridge generation or drive manufacturer unique
identifier).
Human-readable characters are allowed, provided that there is no conflict or interference with the automation code. Users can specify the format, colors, and location of the
human-readable characters.
For optimal library performance, make sure your labels adhere to the guidelines found in Label Specification for IBM 3592 Cartridges when used in IBM Libraries, located at this website:
http://www.storage.ibm.com/media/tapecartridges/index.html
Under Enterprise storage media, select 3592 tape cartridges. Under Related information, select Barcode Label Specification for use with 3592 Tape Media. Under Content, select the .pdf file to access the document. You can also contact your IBM marketing representative for this specification.
Figure 4-13 shows a barcode label for an LTO1 data cartridge.
Figure 4-13 LTO Ultrium 1 barcode label
4.4.3 IBM System Storage TS2240 Tape Drive Express Model
The IBM TS2240 Tape Drive is an external stand-alone or rack-mountable half high LTO4 drive. It is the entry point for the family of IBM LTO tape products and incorporates the latest generation of LTO technology. The TS2240 is suited to handle the backup, save and restore, and archival data storage needs of a wide range of small systems. See Figure 4-14 on page 109.
IBM TS2240 increases the native data rate to up to 120 MBps. With the use of the LTO4 data cartridge, it doubles the tape cartridge capacity to 800 GB uncompressed capacity (1600 GB with 2:1 compression).
Characters allowed: No characters other than uppercase alpha A-Z or numeric 0-9 are allowed.
Chapter 4. IBM System Storage tape automation for encryption 109 The IBM TS2240 Tape Drive uses a 3 Gbps Serial-Attached SCSI (SAS) interface for connections to a wide spectrum of open systems servers. The TS2240 models attach to IBM System p, IBM System i, IBM System x, Microsoft Windows, HP-UX, Sun Solaris, UNIX, and Linux servers.
The TS2240 is encryption capable and supports Application-Managed Encryption on AIX, Windows Server 2003, Linux, and Solaris. Encryption requires the latest device drivers, which are available on the FTP download site:
ftp://ftp.software.ibm.com/storage/devdrvr/
Figure 4-14 IBM System Storage TS2240 Tape Drive Express Model
For more information about IBM TS2240 Tape Drive, see IBM System Storage Tape Library Guide for Open Systems, SG24-5946.
4.4.4 IBM System Storage TS2340 Tape Drive Express Model
The IBM TS2340 Tape Drive is an external stand-alone or rack-mountable LTO4 drive. It is the entry point for the family of IBM LTO tape products and incorporates the latest generation of LTO technology. The TS2340 is suited to handle the backup, save and restore, and archival data storage needs of a wide range of small systems. See Figure 4-15 on page 110.
IBM TS2340 increases the native data rate to up to 120 MBps. With the use of the LTO4 data cartridge, it doubles the tape cartridge capacity to 800 GB uncompressed capacity (1600 GB with 2:1 compression).
The IBM TS2340 Tape Drive Model L43 uses a SCSI Ultra160 low voltage differential (LVD) attachment. The Model S43 uses a 3 Gbps Serial-Attached SCSI (SAS) interface for
connections to a wide spectrum of open systems servers. The TS2340 models attach to IBM System p, IBM System i, IBM System x, Microsoft Windows, HP-UX, Sun Solaris, UNIX, and Linux servers.
The TS2340 Model S43 with SAS interface is encryption capable and supports Application-Managed Encryption on AIX, Windows Server 2003, Linux, and Solaris.
Encryption requires the latest device drivers, which are available on the FTP download site:
ftp://ftp.software.ibm.com/storage/devdrvr/
TS2340 Models: The IBM TS2340 Tape Drive is available as Model L43 with LVD/SCSI or as Model S43 with SAS interface. Only SAS-attached TS2340 tape drives support
encryption.
Figure 4-15 IBM System Storage TS2340 Tape Drive Express Model
For more information about IBM TS2340 Tape Drive, see IBM System Storage Tape Library Guide for Open Systems, SG24-5946.
4.4.5 IBM System Storage TS1040 Tape Drive
The IBM System Storage TS1040 is the IBM LTO Ultrium 4 Tape Drive for installation in the IBM TS3500 Tape Library. The drive mounts in the TS3500 Tape Library Models L53 or D53 and in previous Models L52, L32, D52, or D32.
The TS1040 increases the native data rate to up to 120 MBps. With the use of the LTO4 data cartridge, it doubles the tape cartridge capacity to 800 GB uncompressed capacity (1600 GB with 2:1 compression) in comparison to its predecessor, the TS1030 Tape Drive.
The drive includes a 4-Gbps Fibre Channel interface attachment.
The IBM TS1040 Tape Drive is encryption capable and supports Library-Managed Encryption (LME) and System-Managed Encryption (SME) on a variety of open systems platforms. For a list of supported operating systems and host bus adapters (HBAs), refer to this document:
http://www.ibm.com/systems/storage/tape/pdf/compatibility/ts3500_interop.pdf The TS1040 also supports Application-Managed Encryption (AME) on AIX, Windows Server 2003, Linux, Solaris, and HP-UX.
Figure 4-16 shows the IBM TS1040 Tape Drive.
Figure 4-16 IBM System Storage TS1040 Tape Drive
Chapter 4. IBM System Storage tape automation for encryption 111
4.4.6 IBM System Storage TS2900 Tape Autoloader
The IBM TS2900 Tape Autoloader is a single drive entry level desktop or rack-mounted unit (requiring one rack unit in an industry standard 19-inch rack). You can mount one half-high IBM LTO3, LTO4, or LTO5 drive in the TS2900. The TS2900 is positioned between a
stand-alone tape drive and the TS3100 Tape Library. The TS2900 is well-suited to handle the backup, save and restore, and archival data storage needs of small to medium-sized
environments. You can mount up to nine cartridges in the Autoloader at a time. See Figure 4-17.
Figure 4-17 IBM System Storage TS2900 Tape Autoloader