DataDirect Networks EF2800, User Manual

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DataDirect Networks EF2800 FC RAID Storage System User Guide (V 1.0)
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H.11 Pausing I/O
Most drive enclosures allow you to remove and replace drives while FC
disk channel activity continues. However, you may still want to pause
I/O if you are replacing more than one disk drive. The Hot Swap Pause
option suspends activity on all device channels used in the EF2800,
thereby ensuring data integrity on the connected drives and arrays.
C
AUTION
! Pausing I/O halts active I/O to the host.
NOTE: If you are not sure that your enclosure supports hot swapping,
use the Hot Swap Pause option before you remove or replace any drives in
an array.
To pause I/O:
1.
From the System Menu, select
Utilities Menu
and press < Enter>.
The Utilities Menu displays.
2.
Select
Hot Swap Pause
and press < Enter> . The Bus Paused screen
displays
(Figure 174)
.
3.
When you have replaced the drive, resume back end activity by
pressing <Esc>.
C
AUTION
! Do not stay in the Hot Swap Pause mode for too long;
otherwise, an operating system time-out may occur (the time varies
according to the operating system). For example, in Windows NT, the
default limitation during I/O activity is 10 seconds.
Figure 174. Hot Swap Pause Screen