Fujitsu Eternus DX600 S3 - Rebuild;Copyback Process Time; Table 22 Rebuild Process Time; Table 23 Copyback Process Time

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 22
Rebuild Process Time
RAID level Number of drives
Rebuild process time (*1)
SAS disks Nearline SAS disks SSDs
RAID1 2 (1D+1M) Approx. 27 minutes/
100GB
Approx. 47 minutes/
100GB
Approx. 5 minutes/
100GB
RAID1+0 8 (4D+4M) Approx. 7 minutes/
100GB
Approx. 11 minutes/
100GB
Approx. 2 minutes/
100GB
RAID5 5 (4D+1P) Approx. 10 minutes/
100GB
Approx. 15 minutes/
100GB
Approx. 2 minutes/
100GB
RAID5+0
6 ([2D+1P] ´
2)
Approx. 7 minutes/
100GB
Approx. 11 minutes/
100GB
Approx. 2 minutes/
100GB
RAID6 6 (4D+2P) Approx. 13 minutes/
100GB
Approx. 21 minutes/
100GB
Approx. 2 minutes/
100GB
*1: The value shows the rebuild process time 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.
■
Copyback Process Time
The following table shows the time required for the copyback process.
Table 23 Copyback Process Time
RAID level Number of drives
Copyback process time (*1)
SAS disks Nearline SAS disks SSDs
RAID1 2 (1D+1M) Approx. 27 minutes/
100GB
Approx. 49 minutes/
100GB
Approx. 5 minutes/
100GB
RAID1+0 8 (4D+4M) Approx. 7 minutes/
100GB
Approx. 11 minutes/
100GB
Approx. 1 minute/
100GB
RAID5 5 (4D+1P) Approx. 10 minutes/
100GB
Approx. 16 minutes/
100GB
Approx. 2 minutes/
100GB
RAID5+0
6 ([2D+1P] ´
2)
Approx. 7 minutes/
100GB
Approx. 11 minutes/
100GB
Approx. 2 minutes/
100GB
RAID6 6 (4D+2P) Approx. 13 minutes/
100GB
Approx. 20 minutes/
100GB
Approx. 2 minutes/
100GB
*1: The value shows the copyback process time 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.
4. Process Time (Estimated)
Rebuild/Copyback Process Time
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FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems
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