Datasheet
5
Release Notes for the Cisco ASA 5500 Series, Version 8.2(x)
OL-18971-02
System Requirements
System Requirements
The sections that follow list the system requirements for operating an adaptive security appliance. This
section includes the following topics:
• Memory Requirements, page 5
• ASDM, SSM, SSC, and VPN Compatibility, page 7
Memory Requirements
The adaptive security appliance includes DRAM and an internal CompactFlash card. You can optionally
use an external CompactFlash card as well. This section includes the following topics:
• Standard DRAM and Internal Flash Memory, page 5
• Memory Upgrade Kits, page 6
• Viewing Flash Memory, page 6
• DRAM, Flash Memory, and Failover, page 6
Standard DRAM and Internal Flash Memory
Table 1 lists the standard memory shipped with the adaptive security appliance.
Note If your adaptive security appliance has only 64 MB of internal CompactFlash (which shipped standard
in the past), you should not store multiple system images, or multiple images of the new AnyConnect
VPN client components, client/server plugins, or Cisco Secure Desktop.
Note On both the ASA 5580-20 and the ASA 5580-40 adaptive security appliances only 4 GB of memory is
available for features. The rest are reserved or used by the OS. The show memory command will only
display values relative to 4 GB.
Ta b l e 1 S t a n d a r d M e m o r y
ASA Model Default DRAM Memory (MB) Default Internal Flash Memory (MB)
5505 256 128
5510 256
1
1. For the ASA 5510—Version 8.2 uses more base memory than previous releases. This might cause problems for some ASA
5510 users who are currently running low on free memory (as indicated in the show memory output). If your current show
memory output displays less than 20% free, we recommend upgrading the memory on the ASA 5510 from 256 MB to 512
MB before proceeding with the release 8.2 upgrade.
512
5520 512 512
5540 1024 512
5550 4096 512
5580 4096 1024