Symptoms:

WhentheCC-SGHardwareAppliance(shippedfromthefactoryinearly2017)with?rmware

releases6.2.0orearlierisupgradedtonewer?rmwarereleases,usersmayexperienceanerror

message“Failedtoconstructcomponentinstance”whenaccessingthenodes/targets.Inrare

cases,CC-SGmayexperiencebootfailureaftertheupgrade.

RootCause:

CC-SGusesthebootpartitionforitsoperatingsystemboot?lesandrelatedservices.Thehardware

appliancesshippedfromthefactory(priortoearly2017)with?rmwarereleasespriortothe6.2.0

releasewitha?xedbootpartitionsize.ThesubsequentCC-SG?rmwareupgradeincludesupdates

totheoperatingsystemandservicewithlarger?lesleavingbehindolder?lesinthebootpartition.

Thiscausesbootpartitionspaceconstraintsandcausesissueswiththe?rmwareupgradeandthe

reportedissue.

Ifthebootpartitionutilizationisabove50%,upgradingtoCC-SGmaycauseCC-SGbootfailureor

resultinnodeaccessissueswitherrorsreportedinthesymptomsabove.

CC-SGhardwareappliancewith7.0andlaterreleasesshippedfromthefactory(andvirtual

appliances)hasalargerbootpartitionsizeandisNOTaectedbythisissue.

Solution:

Ifthebootpartitionisabove50%utilization,pleasecontactthetechnicalsupportteamtoobtaina

patchtofreeupthespaceforthebootpartitionbeforeapplyingthe?rmwareupgrade.

Pleasecheckthe/bootpartitionutilizationatyourcurrent?rmwarerelease.

Tocheckthe/bootpartitionutilization,logintoCC-SGontheadmindiagnosticconsoleand

navigatetoOperationUtilitiesDisk/RAIDUtilizationRAIDStatus+DiskUtilization