User guide

1–8 Introduction
Hitachi Unified Storage VM Block Module Hardware User Guide
The illustrations on this page and the next page show the front and rear
panels of the four drive boxes. The tables following the illustrations describe
the main features of each panel.
Figure 1-4: DBL, DBS, and DBF drive box front bezel
Figure 1-5: DBL (top photo) and DBS (bottom photo) drive box front views
Item Name Color Description
1 POWER
LED
Green OFF - no power is supplied to the system
ON - Power is supplied to the system
READY
LED
Green OFF - system is not operational
ON - normal operation. Storage system is operational.Fast blink - internal
processing. Storage system is operational.Slow blink - offline download
processing completed (maintenance).
LOCATE
LED
Orange OFF - normal operation
ON - nonfatal error. Storage system can remain operating.
Contact technical support. See Getting help on page 3-xi in the preface of
this manual.
2 ALM
LED
(alarm)
Red OFF - normal operation
ON - fatal error. Contact technical support. See Getting help on page 3-xi
in the preface of this manual.
3 ACT LED
(Active)
Green OFF - drive is not being accessed
Blinks when drive is being accessed.