HP StorageWorks 6000 HP StorageWorks 6000-series Virtual Library System User G - Page 165

Create Virtual Library Wizard window 6 of 12, Next Step, Tape Drive Parameters, Tape Drives

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5. Click Next Step. The next Tape Drive Parameters window opens (Figure 73). Figure 73 Create Virtual Library Wizard window (6 of 12) . 6. Enter the number of tape drives you want to create in the library at this time in the Tape Drives box, if different from the default value. You can add more tape drives to the library later. The Tape Drives box defaults to the standard number of drives for the library type. NOTE: All the tape drives created at one time are mapped to the same Fibre Channel host ports. Make sure to load-balance the tape drives across the Fibre Channel host ports to obtain maximum performance. Tape drives in a library do not have to be mapped to the same port as the library. 7. To enable software data compression for the tape drives on the VLS6100, VLS6500, or VLS6800, select Enable Compression. Software data compression (2:1) is performed only on data handled by tape drives with data compression enabled. Data compression allows the VLS to store more data. Hardware data compression is used on the VLS6600; therefore, software compression is not used. NOTE: A tape drive created with data compression enabled cannot be changed to disabled later. 8. Click Create Tape Drive. A summary window opens and displays details about the tape drives created. HP StorageWorks 165

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5.
Click
Next Step
.
The next
Tape Drive Parameters
window opens (
Figure 73
).
Figure 73 Create Virtual Library Wizard window (6 of 12)
.
6.
Enter the number of tape drives you want to create in the library at this time in the
Tape Drives
box, if different from the default value.
You can add more tape drives to the library later. The
Tape Drives
box defaults to the standard
number of drives for the library type.
NOTE:
All the tape drives created at one time are mapped to the same Fibre Channel host ports.
Make sure to load-balance the tape drives across the Fibre Channel host ports to obtain
maximum performance. Tape drives in a library do not have to be mapped to the same
port as the library.
7.
To enable software data compression for the tape drives on the VLS6100, VLS6500, or VLS6800,
select
Enable Compression
.
Software data compression (2:1) is performed only on data handled by tape drives with data
compression enabled. Data compression allows the VLS to store more data.
Hardware data compression is used on the VLS6600; therefore, software compression is not
used.
NOTE:
A tape drive created with data compression enabled cannot be changed to disabled later.
8.
Click
Create Tape Drive
.
A summary window opens and displays details about the tape drives created.
HP StorageWorks
165