Softreboot White Paper (5900-2577, March 2013)

1 Technologies / Features

SoftReboot feature reduces the operating system reboot time experienced during routine system

maintenance. SoftReboot achieves this downtime reduction by skipping the platform hardware

reset and booting the next kernel directly from the current operating system instance.

The time saved due to SoftReboot solution varies across platforms and different hardware

configurations of the same platform. Hence, the down time savings due to SoftReboot are not

quantifiable.

SoftReboot Integrated with DRD

With SRB feature, DRD can further reduce downtime during reboot process. SRB version

B.11.31.1303 supports DRD. DRD version A.3.12 supports SRB. For details about DRD, see

Dynamic Root Disk A.3.12.* Administrator's Guide available at www.hp.com/go/drd-docs.

For proper functioning of this feature, the SRB version should be B.11.31.1303 and DRD version

should be A.3.12.

Product Contents

The SoftReboot feature is implemented in two Dynamically Loadable Kernel Modules, two commands

and kernel enabler patches.

Optional NCF bundle available in OESoftRebootEnh1

PHKL_42331

SoftReboot Enabler Kernel Patches2

PHKL_42332

PHKL_42333

PHKL_42336Other deps (needed on B.11.31.1109)3

PHCO_42480SoftReboot command Enabler Patches4

SD-UX product to support swinstall with special SoftReboot

flag

SW-DIST version >= B.11.31.1203.5

6 Technologies / Features