Canon imageRUNNER ADVANCE C5051 Series Service Manual page 61

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Technology■>■Controller■System■■>■Controls■>■Removable■HDD■(option)
● Points■to■Note■in■Servicing■concerning■Mirroring■Functionality ■
1.■The■modes■other■than■Mirror■Mode■indicate■troubles,■which■require■swift■recovery.
The■power■can■be■turned■OFF■even■during■Rebuild■process.■However,■it■is■recommended■
not■to■turn■off■the■power■and■wait■until■the■mode■flows■to■Mirror■Mode.■In■addition,■HDD■
removal■after■power-OFF■is■guaranteed■only■in■Mirror■Mode.
2.■The■mirroring■board■controls■Master■HDD■and■Backup■HDD.■This■control■is■performed■
based■on■the■HDD■serial■number■and■the■model■serial■number■instead■of■slot■locations.
If■HDDs■are■replaced■in■a■careless■manner■during■servicing■in■the■field,■the■Master■and■
Backup■HDDs■may■be■switched.
Ex)■When■the■master■HDD■is■in■trouble,■the■mirroring■board■automatically■recognizes■
the■backup■HDD■as■the■master.■Thus,■the■master■and■backup■HDDs■are■switched■
even■without■changing■the■slot■locations.
If■the■Master■HDD■cannot■be■located,■turn■OFF/■ON■the■power■to■check■on■which■channel■
the■green■LED■is■lit■on■the■LED■PCB.
The■firstly-blinked■LED■(ChA■or■ChB)■shows■the■Master■HDD,■which■is■accessed■firstly■after■
power-on.
3.■For■users■who■intend■to■use■the■removable■and■mirroring■functionality■concurrently,■instruct■
them■not■to■change■the■removable■HDD■location■in■advance.
Change■of■HDD■locations■after■power-OFF■is■allowed■as■specifications■only■in■Mirror■Mode.
Otherwise,■HDD■removal■or■change■of■location■is■not■guaranteed.
4.■The■following■conditions■are■required■to■replace■HDDs■at■power-ON.
•■ Removable■HDD■is■extended
•■ Either■HDD■is■in■trouble
CAUTION:■
Be■sure■to■use■a■new■HDD■when■replacing■the■HDD.
5.■Upgrading■should■be■done■only■in■Mirror■Mode■while■mirroring■in■ongoing.■Upgrading■in■
Degrade■or■Rebuild■mode■is■basically■prohibited.■Always■prioritize■Mirror■Mode■when■you■
take■any■actions.
2 Technology■>■Controller■System■■>■Controls■>■Removable■HDD■(option)
■ Removable■HDD■(option) ■
This■option■enables■easier■HDD■mounting■(slot-out/■in)■at■power-OFF■(see■*1).■In■addition,■the■
HDD■slot■can■be■locked.
Potential■use■case:■To■enhance■information■securities■in■government■offices■or■enterprises
•■ Remove■the■HDD■after■business■hours■to■store■in■a■safe■box.
•■ Mount■the■HDD■before■business■hours.■Lock■the■slot■during■operation.
*1:■The■following■conditions■are■required■to■replace■HDDs■at■power-ON.
•■ -■Removable■HDD■is■extended
•■ -■Either■HDD■is■in■trouble
Removable HDD Kit-AC1
MEMO:
•■ To■use■this■option,■no■setting■is■required■with■the■software.
•■ The■user■needs■to■prepare■a■key■because■there■is■no■key■with■this■kit.
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