Tape Drives
156 SL8500: Systems Assurance Guide • July 2011
E24254-01
■
IBM LTO Specifications
Models
Description
Read/Write
Technology
Media
Operating
Systems
■
Super DLT600
Description
Read/Write
Technology
Media
Connectivity
Operating
Systems
Available models include LTO2, LTO3, LTO4, and LTO5.
IBM TotalStorage 3580 LTO tape drives are small, modular,
capacity-centric
drives and conform to the LTO open standard for compatibility.
IBM drives use a magneto resistive (MR) head design to help minimize debris
and wear. Data is written in a linear format with a serpentine pattern—the tape
reverses direction after each set of tracks is written to the end of tape (EOT).
LTO2 use a LZ1-based data compression scheme while LTO3 uses a derivative
of the Advanced Lossless Data Compression (ALDC-2) technique.
The tape cartridge for LTO Ultrium drives is a single-reel hub design—the supply
reel is inside the cartridge and the take-up reel is inside the tape drive.
The drives require different media and must be labeled as such:
Note:
IBM drives support the LTO standard for backward compatibility, which is
to write back one generation and read back two generations.
Operating system support is available for: IBM AIX, OS/400 and i5/OS,
Microsoft Windows 2000 Server 2003, Sun Solaris 8 and 9; HP-UX 11.0 and 11,
and Red Hat Enterprise Linux 3; SUSE LINUX Enterprise Server 8.
The Super DLT (SDLT) is the next generation of follow-on products to the popular
DLT family—once a standard for mid-range UNIX and Windows environments.
The SDLT is a modular design,
capacity-centric
tape drive that supports multiple
product generations and consists of both a new drive and a new tape cartridge.
The Super DLT product family incorporates an advanced tape recording
technology called Laser Guided Magnetic Recording (LGMR). This technology
combines optical and magnetic technologies for higher capacities—data is written
on the magnetic side of the tape; servo positioning occurs optically on the other
side of the tape.
Magnetoresistive Cluster (MRC) heads provide a densely packed array of
read/write heads that are precisely positioned using thin-film processing.
Partial Response Maximum Likelihood (PRML) technology provides the high-
performance required for linear tape products.
The tape cartridge for SDLT drives is a single-reel hub design—the supply reel is
inside the cartridge and the take-up reel is inside the tape drive.
Two types of tape cartridges exist: SDLTtape I and SDLTtape II.
Read only compatibility with SDLT I and read and write compatibility with SDLT II.
2 Gb Fibre Channel (FC)
Support includes:
Windows NT/2000/2003 Server, Novell NetWare, Unix, and Linux,
Summary of Contents for StorageTek StreamLine SL8500
Page 4: ...Summary of Changes iv SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 12: ...Contents xii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 18: ...Tables xviii SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 76: ...Introduction 56 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 97: ...E24254 01 Chapter 3 Site Survey Forms 77 Site Survey Forms Figure 21 Content Management Plan ...
Page 137: ...E24254 01 Chapter 4 Site Preparation 117 Site Preparation ...
Page 138: ...Site Preparation 118 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 198: ...Electrical Conversions 176 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 206: ...Comparisons 184 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 233: ...E24254 01 Appendix H Partitioning 211 Partitioning Make copies as necessary ...
Page 240: ...Partitioning 218 SL8500 Systems Assurance Guide July 2011 E24254 01 ...
Page 251: ...E24254 01 Appendix J Work Sheets 229 Work Sheets Figure 73 Content Management Work Sheet ...
Page 276: ...Index 254 SL8500 Systems Assurance Guide June 2011 E24254 01 ...
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