User Manual
BC4000 Series RAID Controllers
02/13/06
B ro ad c om C o r p or at i on
Document
BC4000-UM100-R
Detailed Feature List
Page 11
Delayed spin-up support
Yes
Yes
Yes
Swap array
Yes
Yes
Yes
BIOS Support
Create
Yes
Yes
Yes
Boot
Yes
Yes
Yes
INT13 control
9
Yes
Yes
Yes
Operating System Support
Windows
®
2000, Windows Server 2003
Yes
Yes
Yes
Windows
®
XP
Yes
Yes
Yes
Linux (see
Table 4 on page 12
)
Yes
Yes
Yes
Table 3: Feature List for Different License Levels of the BC4000 Series
License Level
Features
BCXX52/HT-1000
BCXX50
BCXX10
Notes:
1
Arrays can be created across multiple controllers allowing the creation of very wide arrays.
2
This feature allows the administrator to split a mirror into multiple arrays. It is used for array
backup and duplication.
3
Drive roaming allows arrays to be moved between different controllers and systems.
4
Distributed sparing is a technique where the space that would normally be assigned to a
dedicated spare is instead spread across all the disks in an array. It has the advantage of
keeping all disks in an array active, increasing performance and also alleviating the problem
of a silent failure of a dedicated or global spare.
5
Multiple array types per drive allow the administrator to create different array types on the
same drives. For example: The administrator wants data redundancy for the user data, and
creates a RAID5 set using part of the disks data. At the same time the administrator wants
performance for the swap spaces, and creates a RAID0 array using the rest of the disks space.
This feature is also useful in collecting unused space from different capacity disks.
6
This feature increases data integrity for redundant array types by logging areas of an array
that have been written to. In the event of a system crash, the logged areas consistency is
checked and/or corrected. Without this feature, data corruption may occur.
7
Arrays can be instantly created and used by skipping the background consistency check. For
certain types of redundant arrays this is a viable option and has no data integrity drawbacks.
A consistency check can always be done at a later time. For RAID5 and RAID50 sets, if the
initialization is skipped, the arrays will not be redundant until a consistency check is performed.
8
Disks can be added to the system and to an array while the system is operating.
9
INT13 support can be turned on or off from the BIOS configuration utility. If on, you can boot
from an OS installed on a BC4000 Series controller. If not booting from a BC4000 Series
controller, Broadcom recommends setting INT13 support to OFF
