Supported tape drives
The library supports LTO6 and later tape drives. Each drive requires a SAS or Fibre Channel cable.
For minimum and maximum storage configurations, see Table 1.
| Generation | LTO 9 | LTO 8 | LTO 7 | LTO 6 |
|---|---|---|---|---|
| Inquiry |
ULT3580-TD9
ULTRIUM-TD9 |
ULT3580-TD8
ULTRIUM-TD8 |
ULT3580-TD7
ULTRIUM-TD7 |
ULT3580-TD6
ULTRIUM-TD6 |
| Interface (speed) |
FC (8 Gbps)
SAS (12 Gbps) |
FC (8 Gbps)
|
FC (8 Gbps)
|
FC (8 Gbps)
|
| Native data rate |
400 MB/s (L9)
360 MB /s (L8) |
360 MB/s (L8)
300 MB/s (M8) 300 MB/s (L7) |
300 MB/s (L7)
160 MB/s (L6) 140 MB/s (L5) |
160 MB/s (L6)
140 MB/s (L5) 120 MB/s (L4) |
| Sustained data rate (L6, L7, L8 and L9 compressed at 2.5:1 compression; L5 and earlier compressed at 2:1 compression) |
FC
750 Mb/s (L9) 750 Mb/s (L8) SAS 1000 MB/s (L9) 900 MB/s (L8) |
FC
750 MB/s (L8) 750 MB/s (M8) 750 MB/s (L7) |
FC
750 MB/s (L7) 400 MB/s (L6) 280 MB/s (L5) |
FC and SAS
400 MB/s (L6) 280 MB/s (L5) 240 MB/s (L4) |
| Burst data rate |
800 MB/s FC 1200 MB/s SAS |
800 MB/s FC |
800 MB/s FC |
800 MB/s FC 600 MB/s SAS |
| Nominal load-to-ready time | 17 seconds | 15 seconds | 15 seconds | 12 seconds |
| -Initialized tape | 17 seconds | NA | NA | NA |
| -Uninitialized tape2 | 40-120 minutes | NA | NA | NA |
| Nominal unload time | 30 seconds | 24 seconds | 20 seconds | 17 seconds |
| Average space record time from load point | 45 seconds | 59 seconds | 56 seconds | 62 seconds |
| Average rewind time (REWIND command) | 55 seconds | 59 seconds | 60 seconds | NA |
| Average rewind time (part of UNLOAD command, dependent on mount activity)3 | ||||
| Less than 5 Gb of contiguous data transferred | 55 seconds | 59 seconds | 60 seconds | NA |
| 5 Gb to 50 Gb of contiguous data transferred | 110 seconds | 59 seconds | 60 seconds | NA |
| All other types of mount activity | 165 seconds | 59 seconds | 60 seconds | NA |
|
1 By using the built-in data-compression capability of the tape drive, greater data rates than the native data transfer rate are achieved. However, the actual throughput is a function of many components, such as the host system processor, disk data rate, block size, data compression ratio, SAS bus capabilities, and system or application software. 2 Cartridge initialization time can vary. See Media optimization for more information. 3 See Archive mode unthread for more information. Remember:
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| Generation | LTO 9 | LTO 8 | LTO 7 | LTO 6 |
|---|---|---|---|---|
| Inquiry |
ULT3580-HH9
ULTRIUM-HH9 |
ULT3580-HH8
ULTRIUM-HH8 |
ULT3580-HH7
ULTRIUM-HH7 |
ULT3580-HH6
ULTRIUM-HH6 |
| Interface (speed) |
FC (8 Gbps)
SAS (12 Gbps) |
FC (8 Gbps)
SAS (6 Gbps) |
FC (8 Gbps)
SAS (6 Gbps) |
FC (8 Gbps)
SAS (6 Gbps) |
| Native data rate |
300 MB/s (L9)
300 MB/s (L8) |
300 MB/s (L8)
300 MB/s (M8) 300 MB/s (L7) |
300 MB/s (L7)
160 MB/s (L6) 140 MB/s (L5) |
160 MB/s (L6)
140 MB/s (L5) 120 MB/s (L4) |
| Sustained data rate (L6, L7, L8 and L9 compressed at 2.5:1 compression; L5 and earlier compressed at 2:1compression) |
FC
700 Mb/s (L9) 700 Mb/s (L8) SAS 720 MB/s (L9) 720 MB/s (L8) |
FC
700 Mb/s (L8) 700 Mb/s (M8) 700 Mb/s (L7) SAS 600 MB/s (L8) 540 MB/s (M8) 500 MB/s (L7) |
FC
700 Mb/s (L7) 400 Mb/s (L6) 280 Mb/s (L5) SAS 500 MB/s (L7) 400 MB/s (L6) 280 MB/s (L5) |
FC and SAS
400 MB/s (L6) 280 MB/s (L5) 240 MB/s (L4) |
| Burst data rate |
800 MB/s FC 1200 MB/s SAS |
800 MB/s FC 600 MB/s SAS |
800 MB/s FC 600 MB/s SAS |
800 MB/s FC 600 MB/s SAS |
| Nominal load-to-ready time | 16 seconds | 15 seconds | 15 seconds | 12 seconds |
| -Initialized tape | 16 seconds | NA | NA | NA |
| -Uninitialized tape2 | 40-132 minutes | NA | NA | NA |
| Nominal unload time | 56 seconds | 24 seconds | 20 seconds | 17 seconds |
| Average space record time from load point | 65 seconds | 59 seconds | 56 seconds | 62 seconds |
| Average rewind time (REWIND command) | 62 seconds | 59 seconds | 60 seconds | NA |
| Average rewind time (part of UNLOAD command, dependent on mount activity)3 | ||||
| Less than 5 Gb of contiguous data transferred | 62 seconds | 59 seconds | 60 seconds | NA |
| 5 Gb to 50 Gb of contiguous data transferred | 124 seconds | 59 seconds | 60 seconds | NA |
| All other types of mount activity | 186 seconds | 59 seconds | 60 seconds | NA |
|
1 By using the built-in data-compression capability of the tape drive, greater data rates than the native data transfer rate are achieved. However, the actual throughput is a function of many components, such as the host system processor, disk data rate, block size, data compression ratio, SAS bus capabilities, and system or application software. 2 Cartridge initialization time can vary. See Media optimization for more information. 3 See Archive mode unthread for more information. Remember:
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