VPLEX: NDU Precheck-fejl observeret på VPLEX-klynger efter kodeopgradering
Summary: Formålet med denne artikel er at rydde de forhåndskontrolfejl (Nondisruptive Upgrade, NDU), der vises på VPLEX-klyngerne efter kodeopgraderingen.
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Symptoms
Efter opgraderingen af GeoSynchrony-koden til 6.1 kører
Eksempel:
ndu pre-check Kommando til VPlexcli fra en af VPLEX-klyngerne returnerer fejl. Der findes ingen fejl, når NDU precheck køres fra den anden klynge.
Eksempel:
Fra klynge-1:
service@<cluster-1>:~> vplexcli Trying ::1... Connected to localhost. Escape character is '^]'. VPlexcli:/> ndu pre-check Warning: During the NDU process, multiple directors will be offline for a portion of the time. This is non-disruptive but is dependent on a host-based multipathing solution being installed, configured, and operating on all connected hosts. Warning: Please run the "health-check --full" command to verify that the VPLEX is healthy. Analyzing system configuration: .DONE ================================================================================ Performing NDU pre-checks ================================================================================ Verify NDU is not in progress.. ERROR Verify that AIX initiators are configured in VPLEX.. OK Verify director communication status.. OK Verify management network redundancy.. OK Verify management network latency.. ERROR Verify time drift between directors and management server ERROR Verify firmware software version can be retrieved ERROR Verify sufficient disk space on the management server ERROR Verify sufficient disk space on directors ERROR Verify director SSD health ERROR Verify bios quiet mode enabled on the directors ERROR Verify sps conditioning status.. ERROR Verify intra-cluster communications connectivity.. OK Verify inter-director management connectivity status.. OK Verify directors have been commissioned.. OK Verify no unreachable or dead storage-volumes.. OK Verify no unhealthy virtual-volumes.. OK Verify distributed device settings.. OK Verify no unhealthy storage views.. OK Verify valid system configuration.. OK Verify valid metadata volume.. ERROR Verify metadata volume redundancy.. OK Verify all local-com ports have correct topologies.. OK Verify cluster status.. ERROR Verify and prepare directors for ndu.. ERROR Verify the response time of front-end switches.. OK Verify the response time of back-end switches.. OK Verify for potential slow I/O in the last 30 seconds.. ERROR Verify meta-volume backup configuration.. ERROR Verify metadata volume slot availability.. OK Verify RecoverPoint cluster registrations.. OK Verify no virtual volume expansion.. OK Verify if array aware operations are in progress.. ERROR Verify all back-end connections comply with LUN count restriction.. OK Verify inter-cluster communications connectivity.. OK Verify the remote management server version.. ERROR Verify cache-mode consistency for distributed virtual-volumes.. OK Verify clusters are joined.. OK Verify cluster witness state.. ERROR Verify sufficient disk space on the cluster witness server.. ERROR Verify there is no recent I/O aborts.. ERROR
Cause
Efter opgradering til GeoSynchrony 6.1 kan der mangle detaljer i konfigurationsfilen på administrationsserveren, som betyder, at den tilsvarende klynge returnerer fejl i NDU precheck-outputtet.
Resolution
Trin 1: Log ind på
Eksempel:
Fra klynge-2:
Trin 3: Ovenstående to trin bekræfter, at problemet kun ses på klynge-1. Luk begge PuTTY-sessioner.
Trin 4: Start en ny PuTTY-session til klynge-1-administrationsserver med tjenestekonto, og genstart administrationsservertjenesterne fra den nyeste
Trin 7: Opret forbindelse til klynge 1-administrationsserveren, og log på
Eksempel:
Fra klynge-1:
VPlexcli fra klynge-1 administrationsserver og problem ndu pre-check kommando. Følgende fejl ses under NDU precheck.
Eksempel:
Fra klynge-1:
Trin 2: Log ind på service@<cluster-1>:~> vplexcli Trying ::1... Connected to localhost. Escape character is '^]'. VPlexcli:/> ndu pre-check Warning: During the NDU process, multiple directors will be offline for a portion of the time. This is non-disruptive but is dependent on a host-based multipathing solution being installed, configured, and operating on all connected hosts. Warning: Please run the "health-check --full" command to verify that the VPLEX is healthy. Analyzing system configuration: .DONE ================================================================================ Performing NDU pre-checks ================================================================================ Verify NDU is not in progress.. ERROR Verify that AIX initiators are configured in VPLEX.. OK Verify director communication status.. OK Verify management network redundancy.. OK Verify management network latency.. ERROR Verify time drift between directors and management server ERROR Verify firmware software version can be retrieved ERROR Verify sufficient disk space on the management server ERROR Verify sufficient disk space on directors ERROR Verify director SSD health ERROR Verify bios quiet mode enabled on the directors ERROR Verify sps conditioning status.. ERROR Verify intra-cluster communications connectivity.. OK Verify inter-director management connectivity status.. OK Verify directors have been commissioned.. OK Verify no unreachable or dead storage-volumes.. OK Verify no unhealthy virtual-volumes.. OK Verify distributed device settings.. OK Verify no unhealthy storage views.. OK Verify valid system configuration.. OK Verify valid metadata volume.. ERROR Verify metadata volume redundancy.. OK Verify all local-com ports have correct topologies.. OK Verify cluster status.. ERROR Verify and prepare directors for ndu.. ERROR Verify the response time of front-end switches.. OK Verify the response time of back-end switches.. OK Verify for potential slow I/O in the last 30 seconds.. ERROR Verify meta-volume backup configuration.. ERROR Verify metadata volume slot availability.. OK Verify RecoverPoint cluster registrations.. OK Verify no virtual volume expansion.. OK Verify if array aware operations are in progress.. ERROR Verify all back-end connections comply with LUN count restriction.. OK Verify inter-cluster communications connectivity.. OK Verify the remote management server version.. ERROR Verify cache-mode consistency for distributed virtual-volumes.. OK Verify clusters are joined.. OK Verify cluster witness state.. ERROR Verify sufficient disk space on the cluster witness server.. ERROR Verify there is no recent I/O aborts.. ERROR
VPlexcli Fra klynge-2 administrationsserver og problem ndu pre-check. Bemærk, at der ikke ses nogen fejl, når NDU precheck udstedes fra cluster-2.
Eksempel:
Fra klynge-2:
service@<cluster-2>:~> vplexcli Trying ::1... Connected to localhost. Escape character is '^]'. VPlexcli:/> ndu pre-check Warning: During the NDU process, multiple directors will be offline for a portion of the time. This is non-disruptive but is dependent on a host-based multipathing solution being installed, configured, and operating on all connected hosts. Warning: Please run the "health-check --full" command to verify that the VPLEX is healthy Analyzing system configuration: .DONE ================================================================================ Performing NDU pre-checks ================================================================================ Verify NDU is not in progress.. OK Verify that AIX initiators are configured in VPLEX.. OK Verify director communication status.. OK Verify management network redundancy.. OK Verify management network latency.. OK Verify time drift between directors and management server.. OK Verify firmware software version can be retrieved.. OK Verify sufficient disk space on the management server.. OK Verify sufficient disk space on directors.. OK Verify director SSD health.. OK Verify bios quiet mode enabled on the directors.. OK Verify sps conditioning status.. OK Verify intra-cluster communications connectivity.. OK Verify inter-director management connectivity status.. OK Verify directors have been commissioned.. OK Verify no unreachable or dead storage-volumes.. OK Verify no unhealthy virtual-volumes.. OK Verify distributed device settings.. OK Verify no unhealthy storage views.. OK Verify valid system configuration.. OK Verify valid metadata volume.. OK Verify metadata volume redundancy.. OK Verify all local-com ports have correct topologies.. OK Verify cluster status.. OK Verify and prepare directors for ndu.. OK Verify the response time of front-end switches.. OK Verify the response time of back-end switches.. OK Verify for potential slow I/O in the last 30 seconds.. OK Verify meta-volume backup configuration.. OK Verify metadata volume slot availability.. OK Verify RecoverPoint cluster registrations.. OK Verify no virtual volume expansion.. OK Verify if array aware operations are in progress.. OK Verify all back-end connections comply with LUN count restriction.. OK Verify inter-cluster communications connectivity.. OK Verify the remote management server version.. OK Verify cache-mode consistency for distributed virtual-volumes.. OK Verify clusters are joined.. OK Verify cluster witness state.. OK Verify sufficient disk space on the cluster witness server.. OK Verify there is no recent I/O aborts.. OK
Trin 4: Start en ny PuTTY-session til klynge-1-administrationsserver med tjenestekonto, og genstart administrationsservertjenesterne fra den nyeste
mgmtServerBackup.tar fil.
service@<cluster-1> sudo /opt/emc/VPlex/bin/VPlex-MS-backup --restart-services --restore /tmp/mgmtServerBackup-<SERIAL-NUMBER>.tar
Ignorer eventuelle fejl, der vises.
Hvis ikonet
Trin 5: Genstart administrationsserveren ved hjælp af kommandoen nedenfor.
mgmtServerBackup-<SERIAL_NUMBER>.tar fil ikke findes i mappen /tmp på VPLEX administrationsserver, den kan hentes fra direktøren ved at følge artikel 119212. Sørg for, at mgmtServerBackup.tar Filen placeres i mappen /tmp på administrationsserveren.
service@<cluster-1> sudo /sbin/rebootTrin 6: Administrationsserveren genstarter, men der går 5-10 minutter, før du fortsætter.
Trin 7: Opret forbindelse til klynge 1-administrationsserveren, og log på
VPlexcli. Problem ndu pre-check igen for at bekræfte, at fejlene ikke længere er til stede.
Eksempel:
Fra klynge-1:
service@<cluster-1>:~> vplexcli Trying ::1... Connected to localhost. Escape character is '^]'. VPlexcli:/> ndu pre-check Warning: During the NDU process, multiple directors will be offline for a portion of the time. This is non-disruptive but is dependent on a host-based multipathing solution being installed, configured, and operating on all connected hosts. Warning: Please run the "health-check --full" command to verify that the VPLEX is healthy. Analyzing system configuration: .DONE ================================================================================ Performing NDU pre-checks ================================================================================ Verify NDU is not in progress.. OK Verify that AIX initiators are configured in VPLEX.. OK Verify director communication status.. OK Verify management network redundancy.. OK Verify management network latency.. OK Verify time drift between directors and management server.. OK Verify firmware software version can be retrieved.. OK Verify sufficient disk space on the management server.. OK Verify sufficient disk space on directors.. OK Verify director SSD health.. OK Verify bios quiet mode enabled on the directors.. OK Verify sps conditioning status.. OK Verify intra-cluster communications connectivity.. OK Verify inter-director management connectivity status.. OK Verify directors have been commissioned.. OK Verify no unreachable or dead storage-volumes.. OK Verify no unhealthy virtual-volumes.. OK Verify distributed device settings.. OK Verify no unhealthy storage views.. OK Verify valid system configuration.. OK Verify valid metadata volume.. OK Verify metadata volume redundancy.. OK Verify all local-com ports have correct topologies.. OK Verify cluster status.. OK Verify and prepare directors for ndu.. OK Verify the response time of front-end switches.. OK Verify the response time of back-end switches.. OK Verify for potential slow I/O in the last 30 seconds.. OK Verify meta-volume backup configuration.. OK Verify metadata volume slot availability.. OK Verify RecoverPoint cluster registrations.. OK Verify no virtual volume expansion.. OK Verify if array aware operations are in progress.. OK Verify all back-end connections comply with LUN count restriction.. OK Verify inter-cluster communications connectivity.. OK Verify the remote management server version.. OK Verify cache-mode consistency for distributed virtual-volumes.. OK Verify clusters are joined.. OK Verify cluster witness state.. OK Verify sufficient disk space on the cluster witness server.. OK Verify there is no recent I/O aborts.. OK
Affected Products
VPLEX Series, VPLEX VS2, VPLEX VS6Article Properties
Article Number: 000168180
Article Type: Solution
Last Modified: 18 ذو القعدة 1447
Version: 4
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