System Disks - Fujitsu Eternus DX60 User Manual

Chapter 1 Overview
> 1.2 Configuration
• Table 1.5
Table 1.5
ETERNUS DX60
ETERNUS DX80/DX90
• Table 1.6
Table 1.6
RAID
level
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*1:
• No more than 8TB can be used for any one volume. However, the maximum allowed volume
capacity is OS dependent.
1.2.3

System Disks

System disks are disks which have part of their area assigned for use by the system (the system
area), and two system disks are installed in Slot0 and Slot1 in the controller enclosure.
IMPORTANT
P3AM-3042-06ENZ0 ETERNUS DX60/DX80/DX90 Disk storage system User Guide
shows the maximum number of volumes that can be set.
The maximum number of volumes that can be set
Model
Max. 128
Max. 128
shows the time for volume formatting (when the volume capacity is 100GB).
Volume formatting time (for SAS disks and Nearline SAS disks)
No. of
disks
3.5" SAS disks
2 Approx. 35 minutes/100GB
8 Approx. 25 minutes/100GB
5 Approx. 25 minutes/100GB
6 Approx. 25 minutes/100GB
6 Approx. 30 minutes/100GB
The value shows the time required for volume formatting when the volume capacity is 100GB and
there is no server I/O. The time depends on the disk configuration or the disk type.
Do Not
WARNING
• Do not remove system disks. Doing so will render the ETERNUS
DX60/DX80/DX90 unusable.
System disks cannot be registered as hot spares.
Per RAID group
Max. 512
Max. 1,024
Time required for volume formatting (*1)
2.5" SAS disks
Approx. 40 minutes/100GB
Approx. 30 minutes/100GB
Approx. 25 minutes/100GB
Approx. 30 minutes/100GB
Approx. 40 minutes/100GB
33
Per storage system
Nearline SAS disks
Approx. 73 minutes/100GB
Approx. 43 minutes/100GB
Approx. 49 minutes/100GB
Approx. 43 minutes/100GB
Approx. 58 minutes/100GB
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