Rebuild/Copyback Process Time; Table 6.2 Rebuild Process Time (Disk); Table 6.3 Copyback Process Time (Disk) - Fujitsu ETERNUS DX80 S2 User Manual

Chapter 6 Maintenance

6.3 Rebuild/Copyback Process Time

6.3 Rebuild/Copyback Process Time
This section explains the time required for Rebuild/Copyback.
■ Rebuild process time
Table 6.2 shows the time required for the rebuild process (when the volume capacity is 100GB).
Table 6.2 Rebuild process time (disk)
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 disk.
■ Copyback process time
Table 6.3 shows the time required for the copyback process (when the volume capacity is 100GB).
Table 6.3 Copyback process time (disk)
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 disk.
ETERNUS DX80 S2/DX90 S2 Disk storage system User's Guide -Operation-
Number of
disks
2.5" SAS disks
2 Approx. 27 minutes/
100GB
8 Approx. 7 minutes/
100GB
5 Approx. 10 minutes/
100GB
6 Approx. 7 minutes/
100GB
6 Approx. 13 minutes/
100GB
Number of
disks
2.5" SAS disks
2 Approx. 27 minutes/
100GB
8 Approx. 7 minutes/
100GB
5 Approx. 10 minutes/
100GB
6 Approx. 7 minutes/
100GB
6 Approx. 13 minutes/
100GB
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Rebuild process time (*1)
3.5" SAS disks
Approx. 20 minutes/ Approx. 47 minutes/
100GB 100GB
Approx. 5 minutes/ Approx. 11 minutes/
100GB 100GB
Approx. 10 minutes/ Approx. 15 minutes/
100GB 100GB
Approx. 7 minutes/ Approx. 11 minutes/
100GB 100GB
Approx. 13 minutes/ Approx. 21 minutes/
100GB 100GB
Copyback process time (*1)
3.5" SAS disks
Approx. 20 minutes/ Approx. 49 minutes/
100GB 100GB
Approx. 5 minutes/ Approx. 11 minutes/
100GB 100GB
Approx. 7 minutes/ Approx. 16 minutes/
100GB 100GB
Approx. 5 minutes/ Approx. 11 minutes/
100GB 100GB
Approx. 13 minutes/ Approx. 20 minutes/
100GB 100GB
Nearline SAS disks
Nearline SAS disks
P3AM-4842-12ENZ0