Fujitsu teamserver C300i series, Configuration Manual, Page: 5 / 32

5
NOTES
Disk array configuration
• Physical pack
• • • • • • • • • • • • • • • •
A collection of physical HDDs comprising a RAID System.
• Logical drive
• • • • • • • • • • • • • • • • •
Logical drive (ex. D: ) seen by the Operating System.
• Partition
• • • • • • • • • • • • • • • • • • • • • • •
One of the logical access units into which a logical drive is divided.
<Restrictions>
(1) Physical pack must be comprised of the same type of HDDs.
(2) Maximum logical drive size is 2TB (GP5U141/142).
(3) The number of HDDs comprising a physical pack is as shown below.
RAID Level Discription HDDs Capacity of logical drives
RAID 0
The data is broken down into blocks,each on a
2~8
The capacity of logical drive is same as the
separate disk drive capacity of connected HDD.
RAID 1
Duplicates the disk and writes the same data
2
The capacity of the logical drive is half the
onto two disks. capacity of connected HDD.
RAID 5
The data is broken down into blocks and each blocks is
3~8
The capacity of each logical drive is the number
written together with parity bits on a separate disk drive. of connected HDDs - 1.
(4) The same RAID level must be used when dividing a physical pack into a number of logical drives.
(5) A physical pack must comprise only of HDDs which are connected by the same RAID card.
(6) A RAID card can support more than one physical pack. ( even if different RAID levels)
(7) Internal and external array devices cannot be connected to the same RAID card.
(except for M8xx ~ )
Partition 1
Partition 2
HDD HDD HDD HDD
Logical drive A
Logical drive B
* Drives can be divided into partition.
Logical drive C
Physical pack
(
(
( )
)
)