Reformatting The Flash Memory - Cisco 4700M Administration Manual

Reformatting the Flash Memory

Table 4-1
Field
Size
Date
Reformatting the Flash Memory
We recommend that you reformat the ACE Flash memory only under the guidance and supervision of
Caution
Cisco Technical Assistance Center (TAC).
The ACE uses the third extended file system (ext3) as the base file system. The file system is used to
allocate and organize storage space for various types of storage, such as startup-configuration files, SSL
certificate storage, core files, image storage, and log files.
Reformatting the Flash memory erases all data on the Flash memory and reformat it with the ext3 base
file system. All user-defined configuration information is erased.
The ACE performs the following verification sequence prior to reformatting Flash memory:
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•
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Prerequisites
Before you reformat Flash memory, we recommend that you copy the following ACE operation and
configuration files or objects to a remote server:
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Cisco 4700 Series Application Control Engine Appliance Administration Guide
4-30
Field Descriptions for the show checkpoint all Command Output (continued)
Description
Size (in bytes) of the checkpoint
Date and time at which the checkpoint was created
If the system image (the current loaded image) is present in the GNU GRand Unified Bootloader
(GRUB) boot loader, the ACE automatically performs a backup of that image and then performs the
reformat of Flash memory.
If the system image is not present in the Grub boot loader, the ACE prompts you for the location of
an available image to backup prior to reformatting the Flash memory.
If you choose not to backup an available image file, the ACE searches for the
ACE-APPLIANCE-RECOVERY-IMAGE.bin image in the Grub partition of Flash memory.
ACE-APPLIANCE-RECOVERY-IMAGE.bin is the recovery software image that the ACE uses if
the disk partition in Flash memory is corrupted.
If ACE-APPLIANCE-RECOVERY-IMAGE.bin is present, the ACE continues with the Flash
–
memory reformat. The CLI prompt changes to "switch(RECOVERY-IMAGE)/Admin#" as a
means for you to copy the regular ACE software image.
If ACE-APPLIANCE-RECOVERY-IMAGE.bin is not present, the ACE stops the Flash memory
–
reformat because there is no image to boot after format.
ACE software image
ACE license
Startup-configuration file of each context
Running-configuration file of each context
Core dump files of each context
Packet capture buffers of each context
SSL certificate and key pair files of each context
Chapter 4 Managing the ACE Software
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