ATM Release Notes

ATM Version I.11.11.30
Compatibility Information and Installation Requirements
Chapter 340
NOTES: Listed below are some things you should keep in mind when using the information
shown in the table above:
• The “Maximum Adapters per System” column shows the maximum number of ATM
adapters the ATM software can support for each class of HP 9000 system. However, keep
in mind that some models within a class might have fewer physical slots available for
ATM adapters than the number shown in the “Max. Adapters per System” column.
Increasing the number of adapters lets you increase the number of VCs (see “Disk Space
and Memory Requirements” on page 51 for memory-related limitations). The effective
bandwidth will depend mostly on the number and type of HP 9000 systems.
• The “Maximum VCs per Adapter” also depends on the HP 9000’s available RAM at system
boot time—the driver checks the amount and limits the number of available VCs
accordingly. The table below shows, for each affected adapter, the amount of available
RAM and the corresponding VC limit. Note that discontinued adapters are not shown.
Table 3-3 Maximum VCs per Adapter Based on Available RAM
HP ATM/155 Adapters
(A5513A, A5515A, J2469A,
J2499A, and J3420B)
HP ATM/622 Adapters
(A5483A and J3573A)
Available
RAM
Maximum
VCs per
Adapter
Available
RAM
Maximum
VCs per
Adapter
Less than or
equal to
32 MBytes
256 Less than or
equal to
32 MBytes
256
Less than or
equal to
64 MBytes
512 Less than or
equal to
64 MBytes
512
Less than or
equal to
128 MBytes
1024 Less than or
equal to
128 MBytes
1024
Greater than
128 MBytes
2048 Less than or
equal to
256 MBytes
2048
n/a n/a Greater than
256 MBytes
4096