3. Process Time (Estimated)
This chapter explains the estimated time that is required for volume formatting and for rebuild/copyback for
each RAID level configuration.
Volume Formatting Time
The following table shows the time required for the volume formatting process.
Table 5 Volume Formatting Time
RAID level Number of drives
Volume formatting time (*1)
SSDs
RAID1 2 (1D+1M) Approx. 14 minutes/200GB
RAID1+0 4 (2D+2M) Approx. 9 minutes/200GB
RAID5 5 (4D+1P) Approx. 6 minutes/200GB
RAID5+0
8 ((3D+1P) ´
2)
Approx. 6 minutes/200GB
RAID6 6 (4D+2P) Approx. 7 minutes/200GB
*1: The value shows the time required for volume formatting when the volume capacity is 200GB and there is no server I/O. The time that is
required depends on the type and configuration of the drive.
Rebuild/Copyback Process Time
This section explains the time required for Rebuild/Copyback.
■
Rebuild Process Time
The following table shows the time required for the rebuild process.
Table 6 Rebuild Process Time
RAID level Number of drives
Rebuild process time (*1)
SSDs
RAID1 2 (1D+1M) Approx. 9 minutes/200GB
RAID1+0 4 (2D+2M) Approx. 5 minutes/200GB
RAID5 5 (4D+1P) Approx. 3 minutes/200GB
RAID5+0
8 ((3D+1P) ´
2)
Approx. 2 minutes/200GB
RAID6 6 (4D+2P) Approx. 3 minutes/200GB
*1: The value shows the rebuild process time when the volume capacity is 200GB and there is no server I/O. The time that is required
depends on the type and configuration of the drive.
26 Operation Guide (Basic)
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