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The customer complains the storage is very slow. How can i chechk this kind of problem with commands ? Please help. Thanks.
There are a few ways you can check
sysstat - controller performance statistics (normally I specify interval = 1, for immediate result)
https://library.netapp.com/ecmdocs/ECMP1368825/html/cmdrefnow/man1/na_sysstat.1.html
netstat - network performance statistics
https://library.netapp.com/ecmdocs/ECMP1368825/html/cmdrefnow/man1/na_netstat.1.html
protocol specific
NFS
https://library.netapp.com/ecmdocs/ECMP1368825/html/cmdrefnow/man1/na_nfsstat.1.html
CIFS
https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_cifs_stat.1.html
iSCSI
https://library.netapp.com/ecmdocs/ECMP1196979/html/man1/na_iscsi.1.html
And also performance advisor ..generally I start from latency, network throughput, try to narrow down the possibilities and find out the bottleneck.
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