Fujitsu 600GB 2.5" 10K SAS FTS:ETED6HB-L 用户手册

ETERNUS DX60 S2 Disk storage system User’s Guide -Operation-

Copyright 2011 FUJITSU LIMITED

P3AM-5512-02ENZ0

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.

6.2

Volume Formatting Time

 

 shows the time for volume formatting (when the volume capacity is 100GB).

Table 6.1

Time for volume formatting (disk)

*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.

CAUTION

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.

RAID level

No. of disks

Volume formatting time (*1)

2.5" SAS disks

3.5" SAS disks

Nearline SAS disks

RAID1

2

Approx. 40 minutes/
100GB

Approx. 35 minutes/
100GB

Approx. 73 minutes/
100GB

RAID1+0

8

Approx. 30 minutes/
100GB

Approx. 25 minutes/
100GB

Approx. 43 minutes/
100GB

RAID5

5

Approx. 25 minutes/
100GB

Approx. 25 minutes/
100GB

Approx. 49 minutes/
100GB

RAID5+0

6

Approx. 30 minutes/
100GB

Approx. 25 minutes/
100GB

Approx. 43 minutes/
100GB

RAID6

6

Approx. 40 minutes/
100GB

Approx. 30 minutes/
100GB

Approx. 58 minutes/
100GB