Chapter 6 Maintenance; Periodic Backup; Volume Formatting Time - Fujitsu Eternus DX80 S2 User Manual

Chapter 6
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.
6.2

Volume Formatting Time

Table 6.1
Table 6.1
RAID level
RAID1
RAID1+0
RAID5
RAID5+0
RAID6
*1:
ETERNUS DX80 S2/DX90 S2 Disk storage system User's Guide -Operation-
Maintenance
Do
CAUTION
• 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.
shows the time for volume formatting (when the volume capacity is 100GB).
Time for volume formatting (disk)
Number of
disks
2
8
5
6
6
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.
Copyright 2012 FUJITSU LIMITED
Volume formatting time (*1)
2.5" SAS disks 3.5" 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
83
Nearline SAS disks
Approx. 73 minutes/
100GB
Approx. 43 minutes/
100GB
Approx. 49 minutes/
100GB
Approx. 43 minutes/
100GB
Approx. 58 minutes/
100GB
P3AM-4842-03ENZ0