Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 5: Disks and Media 53/62
9es3s1c5.doc
Rev 5.9
02/12/03
Cartridge Types
DDS1 (60m) DDS1 (90m) DDS2 (120m) DDS3 (125m) DDS4 (155m)
Characteristics
Not supported
Read ONLY in
DDS1
Read and write
in DDS2
Read and write
in DDS3
Read and write
in DDS4
Data ca
p
acit
y
*
1.3GB/2.6GB 2GB/4GB 4GB/8GB 12GB/24GB 20GB/40GB
Bull Express
Reference cartrid
g
e
3226 3227 3228 3230
Fu
j
i 78023
HP C5718A
* in Not Compressed/Compressed mode
Supported Systems
AIX 4.3.3, or later for Escala E230, E250, T430, T450, T610, PL220T, PL400T and PL600T.
AIX 5.1, or later for Escala PL240T and PL420T.
4.2.12. DLT 4000 Tape Drive (MTSG014)
Discontinued: 30/06/2001.
The DLT 4000 Tape Drive is a high-performance, high capacity, streaming 1/2" cartridge tape product
designed for use on midrange and high-end systems.
Characteristics
•
External Table Top - 5"1/4 form factor - 1/2" tape drive
•
20GB capacity per cartridge, 40GB typical with 2:1 data compression ratio
•
Differential interface (up to 25m connection)
•
Tape cartridge available
CompacTape IV (up to 20GB native formatted data)
CompacTape III (2.6, 6.0 and 10GB native formatted data depending on selecting)
•
SCSI-2 differential interface - wide connection
•
Data transfer rate: 1.5MBytes/second native, 3.0MB/s in compression mode (with 2:1 ratio)
•
Dual channel read/write
•
Maximum block size of 16MBytes
•
Read/write data cache of 2MBytes
•
Tape mark directory to maximize throughput and to minimize data access tie
•
Timing characteristics:
Tape speed: 110 inches/sec on read/write - 150 inches/sec on search
Average rewind time: 45 sec
Average access time: 45 sec
Load to BOT: 48 sec for tape already used
Unload from BOT: 17 sec
Warning:
The CompacTape III (2.6GB, 6GB and 10GB) can be only "on read". The CompacTape IV (20GB)
can be only "on read" or "on write". The CompacTape (40GB) cannot be "on read ".