EonStor DS S12/S16/S24 Series Hardware Manual
3.8.3
Power On Procedure
When powering on the subsystem, please follow these steps:
Step 1.
Power on expansion JBODs. If a multi-enclosure configuration is applied,
power on the expansion enclosures.
Step 2.
Power on the RAID subsystem
To power on the subsystem please follow the procedures below.
Using the included power cords, connect both power sockets on the subsystem’s
power supplies to the main power source.
Power on by using the two (2) power switches on power supplies. Each switch
controls a single PSU; therefore make sure that both switches are turned on.
NOTE
For S12 and S16 RAID models
: Although the PSUs are redundant and a single
PSU can provide sufficient power to the system, it is advisable to turn on both power
supplies. If only one PSU is operating and that PSU fails, system downtime will
occur.
For S24 RAID models
: Although the PSUs are redundant and two PSUs can
provide sufficient power to the system, it is advisable to turn on all three power
supplies. If only two PSUs are operating and one fails, the system will enter idle
state, I/O will cease and downtime will occur.
Step 3.
Power on the networking devices, e.g. switches.
Step 4.
Power on the host computers
The host computers should be the last devices that are turned on. Please refer to the
documentation that came with your host computers to see their power on
procedures.
3.8.4
Power On Status Check
Once the subsystem has been powered on, you should begin verifying subsystem
status via the following monitoring interfaces:
LEDs on rear chassis, including controller module, PSUs, and cooling modules.
See
Chapter 4
for more information.
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