Table 1.7 Rebuild Process Times (For Sas Disks And Nearline Sas Disks); Table 1.8 Copyback Process Times (For Sas Disks And Nearline Sas Disks) - Fujitsu Eternus DX60 User Manual

Chapter 1 Overview
1.3 Functions
Table 1.7
various disk configurations.
Table 1.7
RAID level
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*1: The time required to rebuild a 100GB volume of the indicated RAID level, number and type of disks
when there is no concurrent server I/O.
Table 1.8
for various disk configurations.
Table 1.8
RAID level
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*1: The time required to copyback a 100GB volume of the indicated RAID level, number and type of disks
when there is no concurrent server I/O.
shows the times (for 100GB volumes) required for the rebuild process to complete for
Rebuild process times (for SAS disks and Nearline SAS disks)
No. of
disks
3.5" SAS disks
2 Approx. 20 minutes/100GB
8 Approx. 5 minutes/100GB
5 Approx. 10 minutes/100GB
6 Approx. 7 minutes/100GB
6 Approx. 13 minutes/100GB
shows the times (for 100GB volumes) required for the copyback process to complete
Copyback process times (for SAS disks and Nearline SAS disks)
No. of
disks
3.5" SAS disks
2 Approx. 20 minutes/100GB
8 Approx. 5 minutes/100GB
5 Approx. 7 minutes/100GB
6 Approx. 5 minutes/100GB
6 Approx. 13 minutes/100GB
ETERNUS DX60/DX80/DX90 Disk storage system User Guide
Copyright 2011 FUJITSU LIMITED
Rebuild process time
2.5" SAS disks
Approx. 27 minutes/100GB
Approx. 7 minutes/100GB
Approx. 10 minutes/100GB
Approx. 7 minutes/100GB
Approx. 13 minutes/100GB
Copyback process time
2.5" SAS disks
Approx. 27 minutes/100GB
Approx. 7 minutes/100GB
Approx. 10 minutes/100GB
Approx. 7 minutes/100GB
Approx. 13 minutes/100GB
37
(*1)
Nearline SAS disks
Approx. 47 minutes/100GB
Approx. 11 minutes/100GB
Approx. 15 minutes/100GB
Approx. 11 minutes/100GB
Approx. 21 minutes/100GB
(*1)
Nearline SAS disks
Approx. 49 minutes/100GB
Approx. 11 minutes/100GB
Approx. 16 minutes/100GB
Approx. 11 minutes/100GB
Approx. 20 minutes/100GB
P3AM-3042-08ENZ0