[Gluster-users] performance

[Computerisms Corporation]

Hi Strahil,

For the sake of completeness I am reporting back that your suspicions 
seem to have been validated.  I talked to the data center, they made 
some changes.  we talked again some days later, and they made some more 
changes, and for several days now load average on both machines is 
staying consistently below 5 on both servers.  I still have some issues 
to deal with, but the performance of the machines are now no longer a 
problem.

I owe you a steak and a beer, at the least; I sincerely hope chance 
allows me to pay up on that at some point in the future.

On 2020-08-21 12:02 a.m., Computerisms Corporation wrote:
> Hi Strahil,
> 
> 
>> You can use 'virt-what' binary to find if and what type of 
>> Virtualization is used.
> 
> cool, did not know about that.  trouble server:
> 
> root at moogle:/# virt-what
> hyperv
> kvm
> 
> good server:
> root at mooglian:/# virt-what
> kvm
> 
> 
> 
>> I have a suspicion you are ontop of Openstack (which uses CEPH), so I 
>> guess you can try to get more  info.
>> For example, an Openstack instance can have '0x1af4' in 
>> '/sys/block/vdX/device/vendor' (replace X with actual device letter).
>> Another check could be:
>> /usr/lib/udev/scsi_id -g -u -d /dev/vda
> 
> This command returns no output on the bad server.  Good server returns:
> 
> root at mooglian:/# /usr/lib/udev/scsi_id -g -u -d /dev/vda
> -bash: /usr/lib/udev/scsi_id: No such file or directory
> 
>> And also, you can try to take a look with smartctl from smartmontools 
>> package:
>> smartctl -a /dev/vdX
> 
> Both servers return:
> /dev/vda: Unable to detect device type
> 
> When I asked them about this earlier this week I was told the two 
> servers are identical, but I guess there is something different about 
> the server giving me trouble.  I will go back to them and see what they 
> have to say.  Thanks for pointing me at this...
> 
> ________
> 
> 
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