Rebuild/Copyback Process Time; Table 22 Rebuild Process Time; Table 23 Copyback Process Time - Fujitsu ETERNUS DX500 S4 Operation Manual

4. Process Time (Estimated)

Rebuild/Copyback Process Time

Rebuild/Copyback Process Time
This section explains the time required for Rebuild/Copyback.
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Rebuild Process Time
The following table shows the time required for the rebuild process.

Table 22 Rebuild Process Time

RAID level
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*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
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*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.
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Operation Guide (Basic)
Rebuild process time (*1)
Number of drives
SAS disks
2 (1D+1M) Approx. 27 minutes/
100GB
8 (4D+4M) Approx. 7 minutes/
100GB
5 (4D+1P) Approx. 10 minutes/
100GB
6 ([2D+1P] ´ 2)
Approx. 7 minutes/
100GB
6 (4D+2P) Approx. 13 minutes/
100GB
Copyback process time (*1)
Number of drives
SAS disks
2 (1D+1M) Approx. 27 minutes/
100GB
8 (4D+4M) Approx. 7 minutes/
100GB
5 (4D+1P) Approx. 10 minutes/
100GB
6 ([2D+1P] ´ 2)
Approx. 7 minutes/
100GB
6 (4D+2P) Approx. 13 minutes/
100GB
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Nearline SAS disks SSDs
Approx. 47 minutes/ Approx. 5 minutes/
100GB 100GB
Approx. 11 minutes/ Approx. 2 minutes/
100GB 100GB
Approx. 15 minutes/ Approx. 2 minutes/
100GB 100GB
Approx. 11 minutes/ Approx. 2 minutes/
100GB 100GB
Approx. 21 minutes/ Approx. 2 minutes/
100GB 100GB
Nearline SAS disks SSDs
Approx. 49 minutes/ Approx. 5 minutes/
100GB 100GB
Approx. 11 minutes/ Approx. 1 minute/
100GB 100GB
Approx. 16 minutes/ Approx. 2 minutes/
100GB 100GB
Approx. 11 minutes/ Approx. 2 minutes/
100GB 100GB
Approx. 20 minutes/ Approx. 2 minutes/
100GB 100GB
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