Grass Valley PRS 250 RAID Storage System - Manual (Page 57)

Updating Licensed Internal Code
RAID Instructions 3-11
3. Enter a new rebuild time. The new rebuild time is effective for the next rebuild
operation.
The Change Logical Unit Parameters screen appears.
NOTE: Tektronix recommends a minimum rebuild time of 8 hours when using
multiple video channels.
Updating Licensed Internal Code
The Licensed Internal Code (LIC) diskette may also include an update to the SP
programmable read-only memory (PROM) code. When you install Licensed Internal
Code, the SP tries to copy it to reserved areas outside operating system control on four
disk modules, which are called the database disks. The database disk modules are A0,
B0, C0, and A3. (See the figure below.)
For the LIC installation to succeed, at least two of the database disk modules must be
on-line, and ideally, all of them should be on-line. A disk module is on-line if it is
fully powered up and not faulted; that is, if it has a status code on the Presentation
Utility screen and this code is not
POW or OFF . Having multiple copies of code offers
higher availability if a disk module fails.
Disk modules the SP uses to store Licensed Internal Code
A0 B0 C0 D0 E0
A1 B1 C1 D1 E1
A2 B2 C2 D2 E2
A3 B3 C3 D3 E3
= Database disk module