Method and system for filesystem mounted on a root directory wherein data is redirected from a first storage system to a second storage system

A data storage system comprising a processor, a plurality of devices and a memory wherein said memory comprises instructions for implementing a method of transparently remounting filesystem comprising:

• a) establishing a first filesystem which interfaces with said plurality of devices by loading software, including a first set of drivers, into said memory and initializing said first set of drivers with said plurality of devices, said first filesystem mounted on a root directory comprising a single storage device;
• b) activating input/output functionality within said first filesystem;
• and
• c) while input/output functionality is made available to said first filesystem, accessing said single storage device to obtain software, including a second set of drivers, and loading said software into said memory and initializing said second set of drivers with said plurality of devices to establish a second filesystem, wherein said second filesystem is mounted on a root directory comprising said single storage device and another storage device and wherein said first filesystem is rendered inactive.

An automated method of establishing a filesystem for accessing a plurality of storage devices, said method comprising:

• a) booting from a firmware program which comprises firmware drivers, wherein said booting comprises:
• a1) using said firmware drivers, accessing a first set of drivers from a first storage device;
• and
• a2) using said first set of drivers, establishing a first fileystem mounted on a root directory comprising said first storage device;
• b) once said first filesystem is established, utilizing enabled input/output functionality of said first filesystem to said root directory to access a second set of drivers from said first storage device;
• and
• c) using said second set of drivers, establishing a second filesystem mounted on a root directory comprising a plurality of storage devices including said first storage device and wherein said first filesystem is rendered inactive.

An automated method of transparently transferring from a first filesystem to a second filesystem comprising:

• a) booting from a firmware program which comprises firmware drivers, wherein said booting comprises:
• a1) using said firmware drivers, accessing a first set of drivers from a first storage device, said first set of drivers specified within a predetermined firmware listing;
• and
• a2) using said first set of drivers, establishing a first filesystem mounted on a root directory comprising said first storage device;
• b) once said first filesystem is established, utilizing enabled input/output functionality of said first filesystem to said root directory to access a second set of drivers from said first storage device and software for constructing a volume manager;
• and
• c) using said second set of drivers and said software, establishing a second filesystem, comprising said volume manager, and mounted on a root directory comprising a plurality of storage devices configured as at least one mirrored pair and wherein said first fielsystem is rendered inactive.