Thursday, 23 May 2013

Research Links & Info - 23rd May 2013

With stuff from/on - Bitpushr’s Blog, Microsoft Exchange, NetApp - Cloud Services, NetApp - HA Failover Configuration (7-Mode), NetApp - Performance Analysis, NetApp - Volume Migrations (in 7-Mode), Networking, Powershell, VMware View, VMware vSphere.

## Bitpushr’s Blog ##

First time I’d come across this blog (please more updates.) Some interesting articles:

A useful link to the Cisco Nexus 5010 12-Node Cluster Switch config:

Extract - converting from 8.1 7-Mode into C-Mode:
set-defaults
setenv bootarg.init.boot_clustered true
setenv bootarg.init.usebootp false
setenv bootarg.bsdportname e0a

## Microsoft Exchange ##

From technet.microsoft.com:

From blogs.technet.com:

From communities.netapp.com:

## NetApp - Cloud Services (such as offsite backup/DR) ##

A few links below to NetApp partners/customers:

## NetApp - HA Failover Configuration (7-Mode) ##


Example working config for filer A:
ifgrp create lacp Internal_VIF e0a e0b
vlan create Internal_VIF 20
ifgrp create lacp Vmware_VIF
ifconfig Internal_VIF 192.168.1.197 netmask 255.255.255.0 partner Internal_VIF mtusize 1500 trusted wins up nfo
ifconfig Internal_VIF-20 192.168.2.11 netmask 255.255.255.0 partner Internal_VIF-20 mtusize 1500 trusted wins up nfo
ifconfig Vmware_VIF 192.168.10.11 netmask 255.255.255.0 partner Vmware_VIF mtusize 1500 trusted wins up nfo

Example working config for filer B:
ifgrp create lacp Internal_VIF e0a e0b
vlan create Internal_VIF 20
ifgrp create lacp Vmware_VIF
ifconfig Internal_VIF 192.168.1.196 netmask 255.255.255.0 partner Internal_VIF mtusize 1500 trusted wins up nfo
ifconfig Internal_VIF-20 192.168.20.10 netmask 255.255.255.0 partner Internal_VIF-20 mtusize 1500 trusted wins up nfo
ifconfig Vmware_VIF 192.168.10.10 netmask 255.255.255.0 partner Vmware_VIF mtusize 1500 trusted wins up nfo

options cf.takeover.on_network_interface_failure on
options cf.takeover.on_network_interface_failure.policy any_nic

options timed.enable on
options timed.proto ntp
options timed.servers pool.ntp.org 

And more via the link!

## NetApp - Performance Analysis ##

From communities.netapp.com
CMD> plink.exe FILERNAME
CMD> perfstat -f FILERNAME -t 3 -i 6 -l root -S pw:password1 > CASENUMBER.FILERNAME.PERFSTAT.OUT
-t 3: This defines the delay between each scan
-i 6: How many iterations (scans) do you want to run on the filer)

From communities.netapp.com and kris.boeckx@pidpa:
Commands to troubleshoot performance issues:
## Start with:
priv set diag
# For detailed CPU statistics and how to identify the cause of high CPU
sysstat -M -i 5
# Shows you the different I/O ("Disk util" is very important, and also "CPty" see Manual Pages - sysstat )
sysstat -x 5
# Shows you the read / write / latency's of luns
lun stats -i 5
# Shows you detailed info of every lun (you will want to capture this in an output file)
stats show lun
# Same as lun but now for the volumes (you will want to capture this in an output file)
stats show volume
# Shows if any reallocation jobs are running (walf scan status shows you even more info)
reallocate status
 ## For even more info!
# Will start the data collection (wait a few minutes)
statit -b
# Will stop the collection and will give you the result.
statit -e

From NetworkAdminKB:
stats show
reallocate measure -o /vol/fragmentedvolume/lun
reallocate status
reallocate start -f -p /vol/volume_name/lun
man reallocate

## NetApp - Volume Migrations (in 7-Mode) ##

Ways to move a volume to another aggregate (of course, in Clustered ONTAP this is very easy):
ndmpcopy - Copy the entire volume from one location to another. Create the new volume first.
vol copy - Similar to NDMPCOPY, but the destination volume needs to be restricted.
snapmirror - This is nice as you can setup a schedule and keep the updates going until you are ready to do the final copy.
host based - Use something like robocopy or rsync to copy the data from one volume to another.
vol move (DOT 8.x) - Unless it is a snapmirror or snapvault target.

## Networking ##

From longwhiteclouds.com (Long White Virtual Clouds):

From bladesmadesimple.com (Blades Made Simple):

## Powershell ##


## VMware View ##

From blogs.vmware.com:

## VMware vSphere ##

From viktorious.nl:
esxtop -b -d 10 -n 360 > esxtopresults.csv
- or -
esxtop -b -d 10 -n 360 | gzip > esxtopresults.csv.gz
Then add as a new source in permon!

From viktorious.nl:
Consider if there is a very big read or very big write that is going on…

1 comment:

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