Many log messages come up referring to the device WWN naa id e.g 2019-09-02T10:30:44.337Z: [scsiCorrelator] 304273812631us: [vob.scsi.device.io.latency.high] Device naa.60002ac000000000000000140001eac6 performance has deteriorated. I/O latency increased from average value of 826 microseconds to 16837 microseconds. 2019-09-02T10:30:44.337Z: [scsiCorrelator] 304280755082us: [esx.problem.scsi.device.io.latency.high] Device naa.60002ac000000000000000140001eac6
VCSA 6.7u2b ISO and LDAP errors
The latest (as of 26th June 2019) version on vCenter Server Appliance is 6.7u2b. This may come as somewhat of a suprise – as that is not available as a download from VMware. We discovered this after deploying 6.7u2, then
Windows Server 2019 Activation Issues
If you try and activate a WIndows 2019 server using a (valid) MAK key, it fails. it’s a known bug and folks have been very vocal on a lot of communities. At this stage, I’m also aware only of the
Create random files
Needing to generate random files on windows? Try this powershell one liner…. Generates 100 1G files of random data. Not as easy as the old dd on linux. But it works Note:fsutil file createnew is no good as it created
vmk interfaces, ping and netstacks
Once upon time there was ‘ping’. A nice tool to check connectivity. Had the ability to set the df (don’t fragment bit) and set size so you could check end to end MTU. Then along came ‘vmkping’, which is pretty
Setting SNMP on all ESXi 6.5 hosts in a cluster
Has been done before, but things have changed with 6.5 and Get-EsxCli -V2, so I thought I’d share an updated script. This makes sure you have the same SNMP settings on all hosts. This is kind of a response
Writing good process
https://help.promapp.com/Process/Minimode/Permalink/HffVjHfduAQwtkWzeu153a
vMotion vmkping
Since ESX can now run vMotion of separate TCP/IP stack then there’s minor difference to using vmkping to test connectivity. You need to use the -S switch. e.g vmotion kernel interface is vmk1 and you use the defaults…. [root@esx-xxx:~] vmkping
vSphere ESXi 6.5 first look
ESXi 6.5 has been released by VMware. Release Notes Here Install is much like any previous version. Relatively painless. First thing to note in the new UI. All HTML5 based Other ‘issues’ so far: 1) When adding local SSD, the
Basic wordpress security
The .htaccess file can be used to restrict access to directories or files on your web site. By restricting access to certain files and directories you can reduce the possibility of your site be compromised.