RAID Xanadu User Manual page 13

CAUTION
Cautions concerning cables
For the FC cables and SAS cables used in connections in the disk array unit, use
cables and cable lengths specified by RAID. If cables other than those specified are
used, data can be lost.
Check cable specifications and connectors so that there will be no wiring errors.
If the unit were operated with wiring errors, data could be lost. When correcting wiring, it
may be necessary to erase all disk drive data.
When installing, confirm that there is no bending or other damage, dust adhesion, or
dirt on connectors or contacts.
Do not forcibly insert cable connectors.
A connector cannot be connected unless it is inserted with the correct orientation and at
the correct angle.
When inserted correctly, they go in smoothly without applying excessive force. If you
cannot insert one successfully, do not forcibly insert it, but check the orientation and
shape of the connector.
Handle cable connectors carefully so that they are not dropped on a floor and
damaged.
Do not place excessive strain on the connector portion or the cable portion of an
installed cable.
Do not deform a cable by stepping on it or putting heavy objects on it.
Treat optical fiber cables with care and respect. Rough treatment of optical fiber cables
could cause deterioration of characteristics or mechanical damage (line disconnection).
(How to treat optical fiber cables)
1. Ensure a minimum bending radius of 30 mm.
2. Do not drop a cable on the floor or otherwise shock it.
3. If not connecting a cable, place caps on it.
When connecting a cable, do not discard the caps but save them (as well as those for
connectors on the unit).
Optical power may be attenuated by dust or dirt present when inserting an optical fiber
cable in a controller of the disk array unit and result in data errors. When inserting a
cable, always be sure to clean the optical connector using the following procedure.
(Cleaning method)
1. Spray air or another parts cleaning gas on the optical connector for several seconds.
2. Wipe the optical connector lightly several times with a non-fibrous cloth wetted with
isopropyl alcohol.
3. Spray parts cleaning gas on the optical connector for several seconds again.
Treat SAS cables with care and respect. Rough treatment of the cables may cause
deterioration of characteristics or mechanical damage (line disconnection).
(How to treat SAS cables)
1. Make allowance for cable forming.
2. Do not forcibly stretch a cable or otherwise stress it.
3. Ensure a minimum bending radius of 50 mm.
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