4. 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 21 Volume Formatting Time
RAID level Number of drives
Volume formatting time (*1)
SAS disks Nearline SAS disks SSDs
RAID1 2 (1D+1M) Approx. 40 minutes/
100GB
Approx. 73 minutes/
100GB
Approx. 7 minutes/
100GB
RAID1+0 8 (4D+4M) Approx. 30 minutes/
100GB
Approx. 43 minutes/
100GB
Approx. 3 minutes/
100GB
RAID5 5 (4D+1P) Approx. 25 minutes/
100GB
Approx. 49 minutes/
100GB
Approx. 3 minutes/
100GB
RAID5+0
6 ([2D+1P] ´
2)
Approx. 30 minutes/
100GB
Approx. 43 minutes/
100GB
Approx. 4 minutes/
100GB
RAID6 6 (4D+2P) Approx. 40 minutes/
100GB
Approx. 58 minutes/
100GB
Approx. 4 minutes/
100GB
*1: The value shows the time required for volume formatting when the volume capacity is 100GB and there is
no server I/O. The time that is required depends on the type and configuration of the drive.
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FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems
Operation Guide (Basic)
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