User manual

Appendix B: Product Information
164 Cobalt RaQ 4 User Manual
Adding or replacing a hard disk drive in a RaQ 4
If you have the base RaQ 4 server configuration, you can replace a failed hard
disk drive but you cannot add a second hard disk drive.
If you have a RaQ 4i server, you can replace a failed hard disk drive or add a
second hard disk drive.
If you have a RaQ 4r server, you can replace a failed hard disk drive.
Specifications for a hard disk drive
Cobalt Networks recommends that the hard disk drive you select meet the
specifications listed in Table 5. A hard disk drive that does not meet these
specifications can cause reliability problems in your server.
Table 5. Specifications for the hard disk drive
Specification Value
Peak current draw Must not exceed:
1.8 amperes max (at 12 volts)
0.7 amperes max (at 5 volts)
Rotational speed 5400 rpm
Interface Ultra ATA/33
Operating temperature Must be able to operate in environments up to
55° C
Operating humidity 10% to 90% (non-condensing)