HP Xw9300 NVIDIA: RAID Users Guide - Page 113

RAID ROM Setup Questions, Rebuilding Arrays Questions, RAID Config

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CHAPTER 4 NVIDIA RAID Frequently Asked Questions RAID ROM Setup Questions • Why can I not get into the RAID ROM Setup? You must enable RAID functionality in the system BIOS as explained in "Setting Up the BIOS" on page 11. • Why do my hard drives not appear in the RAID ROM Setup? From the RAID Config window, you must enable RAID and then enable the disks that you want to use as RAID disks. See "Setting Up the BIOS" on page 11 for more information. • What is the Optimal Striping Block Size in the RAID ROM Setup? The default optimal striping block size is 64KB. NVIDIA recommends using the optimal block size. • What does BBS stand for in the RAID ROM [F10] setup? BBS stands for BIOS Boot Specification. This indicates that the boot device is defined in the BIOS. • What does "Clear Disk" mean in the RAID ROM Setup? Clear Disk clears the MBR (Master Boot Record). This is needed to prevent invalid data from appearing in the MBR space on any of the drives included in the array. Not doing so could render the system unstable. Rebuilding Arrays Questions • Why does the RAID rebuilding process take so long to complete? In the rebuilding process, all data is copied from one hard drive to another and then the data is synchronized between the two hard drives. Because the rebuilding process occurs in the background in a way that does not affect system performance, the process can be very slow. See "Rebuilding a RAID Mirrored Array" on page 47 for more information. NVIDIA Corporation 109

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NVIDIA Corporation
109
C
HAPTER
4
NVIDIA RAID Frequently Asked Questions
RAID ROM Setup Questions
•
Why can I not get into the RAID ROM Setup?
You must enable RAID functionality in the system BIOS as explained in
“Setting Up
the BIOS” on page 11
.
•
Why do my hard drives not appear in the RAID ROM Setup?
From the
RAID Config
window, you must enable RAID and then enable the disks that
you want to use as RAID disks. See
“Setting Up the BIOS” on page 11
for more
information.
•
What is the Optimal Striping Block Size in the RAID ROM Setup?
The default optimal striping block size is 64KB. NVIDIA recommends using the
optimal block size.
•
What does BBS stand for in the RAID ROM [F10] setup?
BBS stands for
B
IOS
B
oot
S
pecification.
This indicates that the boot device is defined in
the BIOS.
•
What does “Clear Disk” mean in the RAID ROM Setup?
Clear Disk
clears the MBR (Master Boot Record). This is needed to prevent invalid data
from appearing in the MBR space on any of the drives included in the array. Not doing
so could render the system unstable.
Rebuilding Arrays Questions
•
Why does the RAID rebuilding process take so long to complete?
In the rebuilding process, all data is copied from one hard drive to another and then the
data is synchronized between the two hard drives. Because the rebuilding process
occurs in the background in a way that does not affect system performance, the process
can be very slow.
See
“Rebuilding a RAID Mirrored Array” on page 47
for more information.