Maintenance; Periodic Backup; Volume Formatting Time; Table 6.1 Time For Volume Formatting (Disk) - Fujitsu ETERNUS DX80 S2 User Manual

Chapter 6

Maintenance

This chapter describes maintenance for the ETERNUS DX Disk storage system.
6.1

Periodic Backup

In case of a system failure, important data should be regularly backed up.
CAUTION
6.2

Volume Formatting Time

Table 6.1 shows the time for volume formatting (when the volume capacity is 100GB).
Table 6.1
RAID level
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*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 disk.
ETERNUS DX80 S2/DX90 S2 Disk storage system User's Guide -Operation-
Do
• We recommend that you backup important data regularly. If the ETERNUS DX
Disk storage system fails and the data has not been backed up, it may be lost.
Time for volume formatting (disk)
Number of
disks
2
8
5
6
6
Volume formatting time (*1)
2.5" SAS disks
Approx. 40 minutes/ Approx. 35 minutes/
100GB 100GB
Approx. 30 minutes/ Approx. 25 minutes/
100GB 100GB
Approx. 25 minutes/ Approx. 25 minutes/
100GB 100GB
Approx. 30 minutes/ Approx. 25 minutes/
100GB 100GB
Approx. 40 minutes/ Approx. 30 minutes/
100GB 100GB
93
Copyright 2013 FUJITSU LIMITED
3.5" SAS disks Nearline SAS disks
Approx. 73 minutes/
100GB
Approx. 43 minutes/
100GB
Approx. 49 minutes/
100GB
Approx. 43 minutes/
100GB
Approx. 58 minutes/
100GB
P3AM-4842-12ENZ0