
Managing a Nonvolatile File System
117381-A Rev. A 4-21
Partitioning a Memory Card or SIMM
Memory partitioning enables you to use commands such as the compact
command on one partitioned volume at a time. Partitioning also enables you to
store copies of boot images and configuration files on each partition to provide
redundancy.
The
partition command only works with a 4-MB or greater memory card or
SIMM used with an AN or ASN loaded with Version 8.10 or later router software.
The command creates or deletes a partition on a specified volume, or on the
present working volume if a volume is not specified. Such partitioning provides
two independent file systems on two independent volumes.
Enter the following commands to partition the memory card or SIMM or delete a
memory partition:
partition create [
<vol>
:]
partition delete [
<vol>
:]
When creating a partition, the current file system cannot exceed one-half the total
media size. For example, if you are using a 4-MB memory card that contains files
totaling more than 2 MB, you need to remove or edit some of those files until they
total 2 MB or less.
Once the partition has been created, the new volume is referred to as
<vol>
b, and
the existing volume is referred to as either
<vol>
a or
<vol>
.
Examples:
Caution: Be careful when deleting a partition. When you issue the partition
delete command without specifying a subvolume, all files on
<vol>
b are lost.
partition create 1:
Divides memory card or SIMM volume 1 into two
volumes, storing all existing files in volume 1a and
creating and formatting a new volume 1b.
partition delete 1b:
or
partition delete 1:
Removes volume 1b (files included)
Commentaires sur ces manuels